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提交 52dec4c9 编写于 作者: P Prashant Gaikwad 提交者： Stephen Warren
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ARM: tegra: remove legacy clock code 

Remove all legacy clock code from mach-tegra.
Signed-off-by: NPrashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>
上级 61fd290d
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arch/arm/mach-tegra/Makefile
浏览文件 @ 52dec4c9
obj-y += common.o obj-y += common.o
obj-y += io.o obj-y += io.o
obj-y += irq.o obj-y += irq.o
obj-y += clock.o
obj-y += fuse.o obj-y += fuse.o
obj-y += pmc.o obj-y += pmc.o
obj-y += flowctrl.o obj-y += flowctrl.o
...@@ -12,16 +11,12 @@ obj-y += reset.o ...@@ -12,16 +11,12 @@ obj-y += reset.o
obj-y += reset-handler.o obj-y += reset-handler.o
obj-y += sleep.o obj-y += sleep.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks_data.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_speedo.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_speedo.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += sleep-tegra20.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += sleep-tegra20.o
ifeq ($(CONFIG_CPU_IDLE),y) ifeq ($(CONFIG_CPU_IDLE),y)
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += cpuidle-tegra20.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += cpuidle-tegra20.o
endif endif
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks_data.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_speedo.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_speedo.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += sleep-tegra30.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += sleep-tegra30.o
ifeq ($(CONFIG_CPU_IDLE),y) ifeq ($(CONFIG_CPU_IDLE),y)
......
arch/arm/mach-tegra/clock.c 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
*
* Copyright (C) 2010 Google, Inc.
* Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Colin Cross <ccross@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/clk/tegra.h>
#include "board.h"
#include "clock.h"
/*
* Locking:
*
* An additional mutex, clock_list_lock, is used to protect the list of all
* clocks.
*
*/
static DEFINE_MUTEX(clock_list_lock);
static LIST_HEAD(clocks);
void tegra_clk_add(struct clk *clk)
{
struct clk_tegra *c = to_clk_tegra(__clk_get_hw(clk));
mutex_lock(&clock_list_lock);
list_add(&c->node, &clocks);
mutex_unlock(&clock_list_lock);
}
struct clk *tegra_get_clock_by_name(const char *name)
{
struct clk_tegra *c;
struct clk *ret = NULL;
mutex_lock(&clock_list_lock);
list_for_each_entry(c, &clocks, node) {
if (strcmp(__clk_get_name(c->hw.clk), name) == 0) {
ret = c->hw.clk;
break;
}
}
mutex_unlock(&clock_list_lock);
return ret;
}
static int tegra_clk_init_one_from_table(struct tegra_clk_init_table *table)
{
struct clk *c;
struct clk *p;
struct clk *parent;
int ret = 0;
c = tegra_get_clock_by_name(table->name);
if (!c) {
pr_warn("Unable to initialize clock %s\n",
table->name);
return -ENODEV;
}
parent = clk_get_parent(c);
if (table->parent) {
p = tegra_get_clock_by_name(table->parent);
if (!p) {
pr_warn("Unable to find parent %s of clock %s\n",
table->parent, table->name);
return -ENODEV;
}
if (parent != p) {
ret = clk_set_parent(c, p);
if (ret) {
pr_warn("Unable to set parent %s of clock %s: %d\n",
table->parent, table->name, ret);
return -EINVAL;
}
}
}
if (table->rate && table->rate != clk_get_rate(c)) {
ret = clk_set_rate(c, table->rate);
if (ret) {
pr_warn("Unable to set clock %s to rate %lu: %d\n",
table->name, table->rate, ret);
return -EINVAL;
}
}
if (table->enabled) {
ret = clk_prepare_enable(c);
if (ret) {
pr_warn("Unable to enable clock %s: %d\n",
table->name, ret);
return -EINVAL;
}
}
return 0;
}
void tegra_clk_init_from_table(struct tegra_clk_init_table *table)
{
for (; table->name; table++)
tegra_clk_init_one_from_table(table);
}
/* Several extended clock configuration bits (e.g., clock routing, clock
* phase control) are included in PLL and peripheral clock source
* registers. */
int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting)
{
int ret = 0;
struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c));
if (!clk->clk_cfg_ex) {
ret = -ENOSYS;
goto out;
}
ret = clk->clk_cfg_ex(__clk_get_hw(c), p, setting);
out:
return ret;
}
arch/arm/mach-tegra/clock.h 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* arch/arm/mach-tegra/include/mach/clock.h
*
* Copyright (C) 2010 Google, Inc.
* Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Colin Cross <ccross@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __MACH_TEGRA_CLOCK_H
#define __MACH_TEGRA_CLOCK_H
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/list.h>
#include <mach/clk.h>
#define DIV_BUS (1 << 0)
#define DIV_U71 (1 << 1)
#define DIV_U71_FIXED (1 << 2)
#define DIV_2 (1 << 3)
#define DIV_U16 (1 << 4)
#define PLL_FIXED (1 << 5)
#define PLL_HAS_CPCON (1 << 6)
#define MUX (1 << 7)
#define PLLD (1 << 8)
#define PERIPH_NO_RESET (1 << 9)
#define PERIPH_NO_ENB (1 << 10)
#define PERIPH_EMC_ENB (1 << 11)
#define PERIPH_MANUAL_RESET (1 << 12)
#define PLL_ALT_MISC_REG (1 << 13)
#define PLLU (1 << 14)
#define PLLX (1 << 15)
#define MUX_PWM (1 << 16)
#define MUX8 (1 << 17)
#define DIV_U71_UART (1 << 18)
#define MUX_CLK_OUT (1 << 19)
#define PLLM (1 << 20)
#define DIV_U71_INT (1 << 21)
#define DIV_U71_IDLE (1 << 22)
#define ENABLE_ON_INIT (1 << 28)
#define PERIPH_ON_APB (1 << 29)
struct clk_tegra;
#define to_clk_tegra(_hw) container_of(_hw, struct clk_tegra, hw)
struct clk_mux_sel {
struct clk *input;
u32 value;
};
struct clk_pll_freq_table {
unsigned long input_rate;
unsigned long output_rate;
u16 n;
u16 m;
u8 p;
u8 cpcon;
};
enum clk_state {
UNINITIALIZED = 0,
ON,
OFF,
};
struct clk_tegra {
/* node for master clocks list */
struct list_head node; /* node for list of all clocks */
struct clk_lookup lookup;
struct clk_hw hw;
bool set;
unsigned long fixed_rate;
unsigned long max_rate;
unsigned long min_rate;
u32 flags;
const char *name;
enum clk_state state;
u32 div;
u32 mul;
u32 reg;
u32 reg_shift;
struct list_head shared_bus_list;
union {
struct {
unsigned int clk_num;
} periph;
struct {
unsigned long input_min;
unsigned long input_max;
unsigned long cf_min;
unsigned long cf_max;
unsigned long vco_min;
unsigned long vco_max;
const struct clk_pll_freq_table *freq_table;
int lock_delay;
unsigned long fixed_rate;
} pll;
struct {
u32 sel;
u32 reg_mask;
} mux;
struct {
struct clk *main;
struct clk *backup;
} cpu;
struct {
struct list_head node;
bool enabled;
unsigned long rate;
} shared_bus_user;
} u;
void (*reset)(struct clk_hw *, bool);
int (*clk_cfg_ex)(struct clk_hw *, enum tegra_clk_ex_param, u32);
};
struct clk_duplicate {
const char *name;
struct clk_lookup lookup;
};
struct tegra_clk_init_table {
const char *name;
const char *parent;
unsigned long rate;
bool enabled;
};
void tegra_clk_add(struct clk *c);
void tegra2_init_clocks(void);
void tegra30_init_clocks(void);
struct clk *tegra_get_clock_by_name(const char *name);
void tegra_clk_init_from_table(struct tegra_clk_init_table *table);
#endif
arch/arm/mach-tegra/include/mach/clk.h 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* arch/arm/mach-tegra/include/mach/clk.h
*
* Copyright (C) 2010 Google, Inc.
*
* Author:
* Erik Gilling <konkers@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __MACH_CLK_H
#define __MACH_CLK_H
struct clk;
enum tegra_clk_ex_param {
TEGRA_CLK_VI_INP_SEL,
TEGRA_CLK_DTV_INVERT,
TEGRA_CLK_NAND_PAD_DIV2_ENB,
TEGRA_CLK_PLLD_CSI_OUT_ENB,
TEGRA_CLK_PLLD_DSI_OUT_ENB,
TEGRA_CLK_PLLD_MIPI_MUX_SEL,
};
#ifndef CONFIG_COMMON_CLK
unsigned long clk_get_rate_all_locked(struct clk *c);
#endif
void tegra2_sdmmc_tap_delay(struct clk *c, int delay);
int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting);
#endif
arch/arm/mach-tegra/tegra20_clocks.c 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* arch/arm/mach-tegra/tegra20_clocks.c
*
* Copyright (C) 2010 Google, Inc.
* Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Colin Cross <ccross@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/clkdev.h>
#include <linux/clk.h>
#include <linux/clk/tegra.h>
#include "clock.h"
#include "fuse.h"
#include "iomap.h"
#include "tegra2_emc.h"
#define RST_DEVICES 0x004
#define RST_DEVICES_SET 0x300
#define RST_DEVICES_CLR 0x304
#define RST_DEVICES_NUM 3
#define CLK_OUT_ENB 0x010
#define CLK_OUT_ENB_SET 0x320
#define CLK_OUT_ENB_CLR 0x324
#define CLK_OUT_ENB_NUM 3
#define CLK_MASK_ARM 0x44
#define MISC_CLK_ENB 0x48
#define OSC_CTRL 0x50
#define OSC_CTRL_OSC_FREQ_MASK (3<<30)
#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30)
#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30)
#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30)
#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30)
#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK)
#define OSC_FREQ_DET 0x58
#define OSC_FREQ_DET_TRIG (1<<31)
#define OSC_FREQ_DET_STATUS 0x5C
#define OSC_FREQ_DET_BUSY (1<<31)
#define OSC_FREQ_DET_CNT_MASK 0xFFFF
#define PERIPH_CLK_SOURCE_I2S1 0x100
#define PERIPH_CLK_SOURCE_EMC 0x19c
#define PERIPH_CLK_SOURCE_OSC 0x1fc
#define PERIPH_CLK_SOURCE_NUM \
((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4)
#define PERIPH_CLK_SOURCE_MASK (3<<30)
#define PERIPH_CLK_SOURCE_SHIFT 30
#define PERIPH_CLK_SOURCE_PWM_MASK (7<<28)
#define PERIPH_CLK_SOURCE_PWM_SHIFT 28
#define PERIPH_CLK_SOURCE_ENABLE (1<<28)
#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF
#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF
#define PERIPH_CLK_SOURCE_DIV_SHIFT 0
#define SDMMC_CLK_INT_FB_SEL (1 << 23)
#define SDMMC_CLK_INT_FB_DLY_SHIFT 16
#define SDMMC_CLK_INT_FB_DLY_MASK (0xF << SDMMC_CLK_INT_FB_DLY_SHIFT)
#define PLL_BASE 0x0
#define PLL_BASE_BYPASS (1<<31)
#define PLL_BASE_ENABLE (1<<30)
#define PLL_BASE_REF_ENABLE (1<<29)
#define PLL_BASE_OVERRIDE (1<<28)
#define PLL_BASE_DIVP_MASK (0x7<<20)
#define PLL_BASE_DIVP_SHIFT 20
#define PLL_BASE_DIVN_MASK (0x3FF<<8)
#define PLL_BASE_DIVN_SHIFT 8
#define PLL_BASE_DIVM_MASK (0x1F)
#define PLL_BASE_DIVM_SHIFT 0
#define PLL_OUT_RATIO_MASK (0xFF<<8)
#define PLL_OUT_RATIO_SHIFT 8
#define PLL_OUT_OVERRIDE (1<<2)
#define PLL_OUT_CLKEN (1<<1)
#define PLL_OUT_RESET_DISABLE (1<<0)
#define PLL_MISC(c) (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc)
#define PLL_MISC_DCCON_SHIFT 20
#define PLL_MISC_CPCON_SHIFT 8
#define PLL_MISC_CPCON_MASK (0xF<<PLL_MISC_CPCON_SHIFT)
#define PLL_MISC_LFCON_SHIFT 4
#define PLL_MISC_LFCON_MASK (0xF<<PLL_MISC_LFCON_SHIFT)
#define PLL_MISC_VCOCON_SHIFT 0
#define PLL_MISC_VCOCON_MASK (0xF<<PLL_MISC_VCOCON_SHIFT)
#define PLLU_BASE_POST_DIV (1<<20)
#define PLLD_MISC_CLKENABLE (1<<30)
#define PLLD_MISC_DIV_RST (1<<23)
#define PLLD_MISC_DCCON_SHIFT 12
#define PLLE_MISC_READY (1 << 15)
#define PERIPH_CLK_TO_ENB_REG(c) ((c->u.periph.clk_num / 32) * 4)
#define PERIPH_CLK_TO_ENB_SET_REG(c) ((c->u.periph.clk_num / 32) * 8)
#define PERIPH_CLK_TO_ENB_BIT(c) (1 << (c->u.periph.clk_num % 32))
#define SUPER_CLK_MUX 0x00
#define SUPER_STATE_SHIFT 28
#define SUPER_STATE_MASK (0xF << SUPER_STATE_SHIFT)
#define SUPER_STATE_STANDBY (0x0 << SUPER_STATE_SHIFT)
#define SUPER_STATE_IDLE (0x1 << SUPER_STATE_SHIFT)
#define SUPER_STATE_RUN (0x2 << SUPER_STATE_SHIFT)
#define SUPER_STATE_IRQ (0x3 << SUPER_STATE_SHIFT)
#define SUPER_STATE_FIQ (0x4 << SUPER_STATE_SHIFT)
#define SUPER_SOURCE_MASK 0xF
#define SUPER_FIQ_SOURCE_SHIFT 12
#define SUPER_IRQ_SOURCE_SHIFT 8
#define SUPER_RUN_SOURCE_SHIFT 4
#define SUPER_IDLE_SOURCE_SHIFT 0
#define SUPER_CLK_DIVIDER 0x04
#define BUS_CLK_DISABLE (1<<3)
#define BUS_CLK_DIV_MASK 0x3
#define PMC_CTRL 0x0
#define PMC_CTRL_BLINK_ENB (1 << 7)
#define PMC_DPD_PADS_ORIDE 0x1c
#define PMC_DPD_PADS_ORIDE_BLINK_ENB (1 << 20)
#define PMC_BLINK_TIMER_DATA_ON_SHIFT 0
#define PMC_BLINK_TIMER_DATA_ON_MASK 0x7fff
#define PMC_BLINK_TIMER_ENB (1 << 15)
#define PMC_BLINK_TIMER_DATA_OFF_SHIFT 16
#define PMC_BLINK_TIMER_DATA_OFF_MASK 0xffff
/* Tegra CPU clock and reset control regs */
#define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c
#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340
#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344
#define CPU_CLOCK(cpu) (0x1 << (8 + cpu))
#define CPU_RESET(cpu) (0x1111ul << (cpu))
static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE);
static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE);
/*
* Some clocks share a register with other clocks. Any clock op that
* non-atomically modifies a register used by another clock must lock
* clock_register_lock first.
*/
static DEFINE_SPINLOCK(clock_register_lock);
/*
* Some peripheral clocks share an enable bit, so refcount the enable bits
* in registers CLK_ENABLE_L, CLK_ENABLE_H, and CLK_ENABLE_U
*/
static int tegra_periph_clk_enable_refcount[3 * 32];
#define clk_writel(value, reg) \
__raw_writel(value, reg_clk_base + (reg))
#define clk_readl(reg) \
__raw_readl(reg_clk_base + (reg))
#define pmc_writel(value, reg) \
__raw_writel(value, reg_pmc_base + (reg))
#define pmc_readl(reg) \
__raw_readl(reg_pmc_base + (reg))
static unsigned long clk_measure_input_freq(void)
{
u32 clock_autodetect;
clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET);
do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY);
clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS);
if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) {
return 12000000;
} else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) {
return 13000000;
} else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) {
return 19200000;
} else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) {
return 26000000;
} else {
pr_err("%s: Unexpected clock autodetect value %d",
__func__, clock_autodetect);
BUG();
return 0;
}
}
static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate)
{
s64 divider_u71 = parent_rate * 2;
divider_u71 += rate - 1;
do_div(divider_u71, rate);
if (divider_u71 - 2 < 0)
return 0;
if (divider_u71 - 2 > 255)
return -EINVAL;
return divider_u71 - 2;
}
static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate)
{
s64 divider_u16;
divider_u16 = parent_rate;
divider_u16 += rate - 1;
do_div(divider_u16, rate);
if (divider_u16 - 1 < 0)
return 0;
if (divider_u16 - 1 > 0xFFFF)
return -EINVAL;
return divider_u16 - 1;
}
static unsigned long tegra_clk_fixed_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
return to_clk_tegra(hw)->fixed_rate;
}
struct clk_ops tegra_clk_32k_ops = {
.recalc_rate = tegra_clk_fixed_recalc_rate,
};
/* clk_m functions */
static unsigned long tegra20_clk_m_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
if (!to_clk_tegra(hw)->fixed_rate)
to_clk_tegra(hw)->fixed_rate = clk_measure_input_freq();
return to_clk_tegra(hw)->fixed_rate;
}
static void tegra20_clk_m_init(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 osc_ctrl = clk_readl(OSC_CTRL);
u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK;
switch (c->fixed_rate) {
case 12000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ;
break;
case 13000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ;
break;
case 19200000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ;
break;
case 26000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ;
break;
default:
BUG();
}
clk_writel(auto_clock_control, OSC_CTRL);
}
struct clk_ops tegra_clk_m_ops = {
.init = tegra20_clk_m_init,
.recalc_rate = tegra20_clk_m_recalc_rate,
};
/* super clock functions */
/* "super clocks" on tegra have two-stage muxes and a clock skipping
* super divider. We will ignore the clock skipping divider, since we
* can't lower the voltage when using the clock skip, but we can if we
* lower the PLL frequency.
*/
static int tegra20_super_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg + SUPER_CLK_MUX);
BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
c->state = ON;
return c->state;
}
static int tegra20_super_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
clk_writel(0, c->reg + SUPER_CLK_DIVIDER);
return 0;
}
static void tegra20_super_clk_disable(struct clk_hw *hw)
{
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
/* oops - don't disable the CPU clock! */
BUG();
}
static u8 tegra20_super_clk_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
int val = clk_readl(c->reg + SUPER_CLK_MUX);
int source;
int shift;
BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ?
SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
source = (val >> shift) & SUPER_SOURCE_MASK;
return source;
}
static int tegra20_super_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg + SUPER_CLK_MUX);
int shift;
BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ?
SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
val &= ~(SUPER_SOURCE_MASK << shift);
val |= index << shift;
clk_writel(val, c->reg);
return 0;
}
/* FIX ME: Need to switch parents to change the source PLL rate */
static unsigned long tegra20_super_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
return prate;
}
static long tegra20_super_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
return *prate;
}
static int tegra20_super_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
return 0;
}
struct clk_ops tegra_super_ops = {
.is_enabled = tegra20_super_clk_is_enabled,
.enable = tegra20_super_clk_enable,
.disable = tegra20_super_clk_disable,
.set_parent = tegra20_super_clk_set_parent,
.get_parent = tegra20_super_clk_get_parent,
.set_rate = tegra20_super_clk_set_rate,
.round_rate = tegra20_super_clk_round_rate,
.recalc_rate = tegra20_super_clk_recalc_rate,
};
static unsigned long tegra20_twd_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra_twd_ops = {
.recalc_rate = tegra20_twd_clk_recalc_rate,
};
static u8 tegra20_cop_clk_get_parent(struct clk_hw *hw)
{
return 0;
}
struct clk_ops tegra_cop_ops = {
.get_parent = tegra20_cop_clk_get_parent,
};
/* virtual cop clock functions. Used to acquire the fake 'cop' clock to
* reset the COP block (i.e. AVP) */
void tegra2_cop_clk_reset(struct clk_hw *hw, bool assert)
{
unsigned long reg = assert ? RST_DEVICES_SET : RST_DEVICES_CLR;
pr_debug("%s %s\n", __func__, assert ? "assert" : "deassert");
clk_writel(1 << 1, reg);
}
/* bus clock functions */
static int tegra20_bus_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON;
return c->state;
}
static int tegra20_bus_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
u32 val;
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
val &= ~(BUS_CLK_DISABLE << c->reg_shift);
clk_writel(val, c->reg);
spin_unlock_irqrestore(&clock_register_lock, flags);
return 0;
}
static void tegra20_bus_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
u32 val;
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
val |= BUS_CLK_DISABLE << c->reg_shift;
clk_writel(val, c->reg);
spin_unlock_irqrestore(&clock_register_lock, flags);
}
static unsigned long tegra20_bus_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
u64 rate = prate;
c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1;
c->mul = 1;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static int tegra20_bus_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
int ret = -EINVAL;
unsigned long flags;
u32 val;
int i;
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
for (i = 1; i <= 4; i++) {
if (rate == parent_rate / i) {
val &= ~(BUS_CLK_DIV_MASK << c->reg_shift);
val |= (i - 1) << c->reg_shift;
clk_writel(val, c->reg);
c->div = i;
c->mul = 1;
ret = 0;
break;
}
}
spin_unlock_irqrestore(&clock_register_lock, flags);
return ret;
}
static long tegra20_bus_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
unsigned long parent_rate = *prate;
s64 divider;
if (rate >= parent_rate)
return rate;
divider = parent_rate;
divider += rate - 1;
do_div(divider, rate);
if (divider < 0)
return divider;
if (divider > 4)
divider = 4;
do_div(parent_rate, divider);
return parent_rate;
}
struct clk_ops tegra_bus_ops = {
.is_enabled = tegra20_bus_clk_is_enabled,
.enable = tegra20_bus_clk_enable,
.disable = tegra20_bus_clk_disable,
.set_rate = tegra20_bus_clk_set_rate,
.round_rate = tegra20_bus_clk_round_rate,
.recalc_rate = tegra20_bus_clk_recalc_rate,
};
/* Blink output functions */
static int tegra20_blink_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = pmc_readl(PMC_CTRL);
c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF;
return c->state;
}
static unsigned long tegra20_blink_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = prate;
u32 val;
c->mul = 1;
val = pmc_readl(c->reg);
if (val & PMC_BLINK_TIMER_ENB) {
unsigned int on_off;
on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) &
PMC_BLINK_TIMER_DATA_ON_MASK;
val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT;
val &= PMC_BLINK_TIMER_DATA_OFF_MASK;
on_off += val;
/* each tick in the blink timer is 4 32KHz clocks */
c->div = on_off * 4;
} else {
c->div = 1;
}
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static int tegra20_blink_clk_enable(struct clk_hw *hw)
{
u32 val;
val = pmc_readl(PMC_DPD_PADS_ORIDE);
pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE);
val = pmc_readl(PMC_CTRL);
pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL);
return 0;
}
static void tegra20_blink_clk_disable(struct clk_hw *hw)
{
u32 val;
val = pmc_readl(PMC_CTRL);
pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL);
val = pmc_readl(PMC_DPD_PADS_ORIDE);
pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE);
}
static int tegra20_blink_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (rate >= parent_rate) {
c->div = 1;
pmc_writel(0, c->reg);
} else {
unsigned int on_off;
u32 val;
on_off = DIV_ROUND_UP(parent_rate / 8, rate);
c->div = on_off * 8;
val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) <<
PMC_BLINK_TIMER_DATA_ON_SHIFT;
on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK;
on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT;
val |= on_off;
val |= PMC_BLINK_TIMER_ENB;
pmc_writel(val, c->reg);
}
return 0;
}
static long tegra20_blink_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
int div;
int mul;
long round_rate = *prate;
mul = 1;
if (rate >= *prate) {
div = 1;
} else {
div = DIV_ROUND_UP(*prate / 8, rate);
div *= 8;
}
round_rate *= mul;
round_rate += div - 1;
do_div(round_rate, div);
return round_rate;
}
struct clk_ops tegra_blink_clk_ops = {
.is_enabled = tegra20_blink_clk_is_enabled,
.enable = tegra20_blink_clk_enable,
.disable = tegra20_blink_clk_disable,
.set_rate = tegra20_blink_clk_set_rate,
.round_rate = tegra20_blink_clk_round_rate,
.recalc_rate = tegra20_blink_clk_recalc_rate,
};
/* PLL Functions */
static int tegra20_pll_clk_wait_for_lock(struct clk_tegra *c)
{
udelay(c->u.pll.lock_delay);
return 0;
}
static int tegra20_pll_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg + PLL_BASE);
c->state = (val & PLL_BASE_ENABLE) ? ON : OFF;
return c->state;
}
static unsigned long tegra20_pll_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg + PLL_BASE);
u64 rate = prate;
if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) {
const struct clk_pll_freq_table *sel;
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == prate &&
sel->output_rate == c->u.pll.fixed_rate) {
c->mul = sel->n;
c->div = sel->m * sel->p;
break;
}
}
pr_err("Clock %s has unknown fixed frequency\n",
__clk_get_name(hw->clk));
BUG();
} else if (val & PLL_BASE_BYPASS) {
c->mul = 1;
c->div = 1;
} else {
c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT;
c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT;
if (c->flags & PLLU)
c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2;
else
c->div *= (val & PLL_BASE_DIVP_MASK) ? 2 : 1;
}
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static int tegra20_pll_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
val = clk_readl(c->reg + PLL_BASE);
val &= ~PLL_BASE_BYPASS;
val |= PLL_BASE_ENABLE;
clk_writel(val, c->reg + PLL_BASE);
tegra20_pll_clk_wait_for_lock(c);
return 0;
}
static void tegra20_pll_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
val = clk_readl(c->reg);
val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE);
clk_writel(val, c->reg);
}
static int tegra20_pll_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long input_rate = parent_rate;
const struct clk_pll_freq_table *sel;
u32 val;
pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate);
if (c->flags & PLL_FIXED) {
int ret = 0;
if (rate != c->u.pll.fixed_rate) {
pr_err("%s: Can not change %s fixed rate %lu to %lu\n",
__func__, __clk_get_name(hw->clk),
c->u.pll.fixed_rate, rate);
ret = -EINVAL;
}
return ret;
}
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == input_rate && sel->output_rate == rate) {
c->mul = sel->n;
c->div = sel->m * sel->p;
val = clk_readl(c->reg + PLL_BASE);
if (c->flags & PLL_FIXED)
val |= PLL_BASE_OVERRIDE;
val &= ~(PLL_BASE_DIVP_MASK | PLL_BASE_DIVN_MASK |
PLL_BASE_DIVM_MASK);
val |= (sel->m << PLL_BASE_DIVM_SHIFT) |
(sel->n << PLL_BASE_DIVN_SHIFT);
BUG_ON(sel->p < 1 || sel->p > 2);
if (c->flags & PLLU) {
if (sel->p == 1)
val |= PLLU_BASE_POST_DIV;
} else {
if (sel->p == 2)
val |= 1 << PLL_BASE_DIVP_SHIFT;
}
clk_writel(val, c->reg + PLL_BASE);
if (c->flags & PLL_HAS_CPCON) {
val = clk_readl(c->reg + PLL_MISC(c));
val &= ~PLL_MISC_CPCON_MASK;
val |= sel->cpcon << PLL_MISC_CPCON_SHIFT;
clk_writel(val, c->reg + PLL_MISC(c));
}
if (c->state == ON)
tegra20_pll_clk_enable(hw);
return 0;
}
}
return -EINVAL;
}
static long tegra20_pll_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
const struct clk_pll_freq_table *sel;
unsigned long input_rate = *prate;
u64 output_rate = *prate;
int mul;
int div;
if (c->flags & PLL_FIXED)
return c->u.pll.fixed_rate;
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++)
if (sel->input_rate == input_rate && sel->output_rate == rate) {
mul = sel->n;
div = sel->m * sel->p;
break;
}
if (sel->input_rate == 0)
return -EINVAL;
output_rate *= mul;
output_rate += div - 1; /* round up */
do_div(output_rate, div);
return output_rate;
}
struct clk_ops tegra_pll_ops = {
.is_enabled = tegra20_pll_clk_is_enabled,
.enable = tegra20_pll_clk_enable,
.disable = tegra20_pll_clk_disable,
.set_rate = tegra20_pll_clk_set_rate,
.recalc_rate = tegra20_pll_clk_recalc_rate,
.round_rate = tegra20_pll_clk_round_rate,
};
static void tegra20_pllx_clk_init(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (tegra_sku_id == 7)
c->max_rate = 750000000;
}
struct clk_ops tegra_pllx_ops = {
.init = tegra20_pllx_clk_init,
.is_enabled = tegra20_pll_clk_is_enabled,
.enable = tegra20_pll_clk_enable,
.disable = tegra20_pll_clk_disable,
.set_rate = tegra20_pll_clk_set_rate,
.recalc_rate = tegra20_pll_clk_recalc_rate,
.round_rate = tegra20_pll_clk_round_rate,
};
static int tegra20_plle_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
mdelay(1);
val = clk_readl(c->reg + PLL_BASE);
if (!(val & PLLE_MISC_READY))
return -EBUSY;
val = clk_readl(c->reg + PLL_BASE);
val |= PLL_BASE_ENABLE | PLL_BASE_BYPASS;
clk_writel(val, c->reg + PLL_BASE);
return 0;
}
struct clk_ops tegra_plle_ops = {
.is_enabled = tegra20_pll_clk_is_enabled,
.enable = tegra20_plle_clk_enable,
.set_rate = tegra20_pll_clk_set_rate,
.recalc_rate = tegra20_pll_clk_recalc_rate,
.round_rate = tegra20_pll_clk_round_rate,
};
/* Clock divider ops */
static int tegra20_pll_div_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
val >>= c->reg_shift;
c->state = (val & PLL_OUT_CLKEN) ? ON : OFF;
if (!(val & PLL_OUT_RESET_DISABLE))
c->state = OFF;
return c->state;
}
static unsigned long tegra20_pll_div_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = prate;
u32 val = clk_readl(c->reg);
u32 divu71;
val >>= c->reg_shift;
if (c->flags & DIV_U71) {
divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT;
c->div = (divu71 + 2);
c->mul = 2;
} else if (c->flags & DIV_2) {
c->div = 2;
c->mul = 1;
} else {
c->div = 1;
c->mul = 1;
}
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
return rate;
}
static int tegra20_pll_div_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
u32 new_val;
u32 val;
pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk));
if (c->flags & DIV_U71) {
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
new_val &= 0xFFFF;
new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE;
val &= ~(0xFFFF << c->reg_shift);
val |= new_val << c->reg_shift;
clk_writel(val, c->reg);
spin_unlock_irqrestore(&clock_register_lock, flags);
return 0;
} else if (c->flags & DIV_2) {
BUG_ON(!(c->flags & PLLD));
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
val &= ~PLLD_MISC_DIV_RST;
clk_writel(val, c->reg);
spin_unlock_irqrestore(&clock_register_lock, flags);
return 0;
}
return -EINVAL;
}
static void tegra20_pll_div_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
u32 new_val;
u32 val;
pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk));
if (c->flags & DIV_U71) {
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
new_val &= 0xFFFF;
new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE);
val &= ~(0xFFFF << c->reg_shift);
val |= new_val << c->reg_shift;
clk_writel(val, c->reg);
spin_unlock_irqrestore(&clock_register_lock, flags);
} else if (c->flags & DIV_2) {
BUG_ON(!(c->flags & PLLD));
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
val |= PLLD_MISC_DIV_RST;
clk_writel(val, c->reg);
spin_unlock_irqrestore(&clock_register_lock, flags);
}
}
static int tegra20_pll_div_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
int divider_u71;
u32 new_val;
u32 val;
pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate);
if (c->flags & DIV_U71) {
divider_u71 = clk_div71_get_divider(parent_rate, rate);
if (divider_u71 >= 0) {
spin_lock_irqsave(&clock_register_lock, flags);
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
new_val &= 0xFFFF;
if (c->flags & DIV_U71_FIXED)
new_val |= PLL_OUT_OVERRIDE;
new_val &= ~PLL_OUT_RATIO_MASK;
new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT;
val &= ~(0xFFFF << c->reg_shift);
val |= new_val << c->reg_shift;
clk_writel(val, c->reg);
c->div = divider_u71 + 2;
c->mul = 2;
spin_unlock_irqrestore(&clock_register_lock, flags);
return 0;
}
} else if (c->flags & DIV_2) {
if (parent_rate == rate * 2)
return 0;
}
return -EINVAL;
}
static long tegra20_pll_div_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long parent_rate = *prate;
int divider;
pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate);
if (c->flags & DIV_U71) {
divider = clk_div71_get_divider(parent_rate, rate);
if (divider < 0)
return divider;
return DIV_ROUND_UP(parent_rate * 2, divider + 2);
} else if (c->flags & DIV_2) {
return DIV_ROUND_UP(parent_rate, 2);
}
return -EINVAL;
}
struct clk_ops tegra_pll_div_ops = {
.is_enabled = tegra20_pll_div_clk_is_enabled,
.enable = tegra20_pll_div_clk_enable,
.disable = tegra20_pll_div_clk_disable,
.set_rate = tegra20_pll_div_clk_set_rate,
.round_rate = tegra20_pll_div_clk_round_rate,
.recalc_rate = tegra20_pll_div_clk_recalc_rate,
};
/* Periph clk ops */
static int tegra20_periph_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
c->state = ON;
if (!c->u.periph.clk_num)
goto out;
if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) &
PERIPH_CLK_TO_ENB_BIT(c)))
c->state = OFF;
if (!(c->flags & PERIPH_NO_RESET))
if (clk_readl(RST_DEVICES + PERIPH_CLK_TO_ENB_REG(c)) &
PERIPH_CLK_TO_ENB_BIT(c))
c->state = OFF;
out:
return c->state;
}
static int tegra20_periph_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
u32 val;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
if (!c->u.periph.clk_num)
return 0;
tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++;
if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1)
return 0;
spin_lock_irqsave(&clock_register_lock, flags);
clk_writel(PERIPH_CLK_TO_ENB_BIT(c),
CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c));
if (!(c->flags & PERIPH_NO_RESET) && !(c->flags & PERIPH_MANUAL_RESET))
clk_writel(PERIPH_CLK_TO_ENB_BIT(c),
RST_DEVICES_CLR + PERIPH_CLK_TO_ENB_SET_REG(c));
if (c->flags & PERIPH_EMC_ENB) {
/* The EMC peripheral clock has 2 extra enable bits */
/* FIXME: Do they need to be disabled? */
val = clk_readl(c->reg);
val |= 0x3 << 24;
clk_writel(val, c->reg);
}
spin_unlock_irqrestore(&clock_register_lock, flags);
return 0;
}
static void tegra20_periph_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long flags;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
if (!c->u.periph.clk_num)
return;
tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--;
if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 0)
return;
spin_lock_irqsave(&clock_register_lock, flags);
clk_writel(PERIPH_CLK_TO_ENB_BIT(c),
CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c));
spin_unlock_irqrestore(&clock_register_lock, flags);
}
void tegra2_periph_clk_reset(struct clk_hw *hw, bool assert)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long base = assert ? RST_DEVICES_SET : RST_DEVICES_CLR;
pr_debug("%s %s on clock %s\n", __func__,
assert ? "assert" : "deassert", __clk_get_name(hw->clk));
BUG_ON(!c->u.periph.clk_num);
if (!(c->flags & PERIPH_NO_RESET))
clk_writel(PERIPH_CLK_TO_ENB_BIT(c),
base + PERIPH_CLK_TO_ENB_SET_REG(c));
}
static int tegra20_periph_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
u32 mask;
u32 shift;
pr_debug("%s: %s %d\n", __func__, __clk_get_name(hw->clk), index);
if (c->flags & MUX_PWM) {
shift = PERIPH_CLK_SOURCE_PWM_SHIFT;
mask = PERIPH_CLK_SOURCE_PWM_MASK;
} else {
shift = PERIPH_CLK_SOURCE_SHIFT;
mask = PERIPH_CLK_SOURCE_MASK;
}
val = clk_readl(c->reg);
val &= ~mask;
val |= (index) << shift;
clk_writel(val, c->reg);
return 0;
}
static u8 tegra20_periph_clk_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
u32 mask;
u32 shift;
if (c->flags & MUX_PWM) {
shift = PERIPH_CLK_SOURCE_PWM_SHIFT;
mask = PERIPH_CLK_SOURCE_PWM_MASK;
} else {
shift = PERIPH_CLK_SOURCE_SHIFT;
mask = PERIPH_CLK_SOURCE_MASK;
}
if (c->flags & MUX)
return (val & mask) >> shift;
else
return 0;
}
static unsigned long tegra20_periph_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long rate = prate;
u32 val = clk_readl(c->reg);
if (c->flags & DIV_U71) {
u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK;
c->div = divu71 + 2;
c->mul = 2;
} else if (c->flags & DIV_U16) {
u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK;
c->div = divu16 + 1;
c->mul = 1;
} else {
c->div = 1;
c->mul = 1;
return rate;
}
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static int tegra20_periph_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
int divider;
val = clk_readl(c->reg);
if (c->flags & DIV_U71) {
divider = clk_div71_get_divider(parent_rate, rate);
if (divider >= 0) {
val = clk_readl(c->reg);
val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK;
val |= divider;
clk_writel(val, c->reg);
c->div = divider + 2;
c->mul = 2;
return 0;
}
} else if (c->flags & DIV_U16) {
divider = clk_div16_get_divider(parent_rate, rate);
if (divider >= 0) {
val = clk_readl(c->reg);
val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK;
val |= divider;
clk_writel(val, c->reg);
c->div = divider + 1;
c->mul = 1;
return 0;
}
} else if (parent_rate <= rate) {
c->div = 1;
c->mul = 1;
return 0;
}
return -EINVAL;
}
static long tegra20_periph_clk_round_rate(struct clk_hw *hw,
unsigned long rate, unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk));
int divider;
pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate);
if (prate)
parent_rate = *prate;
if (c->flags & DIV_U71) {
divider = clk_div71_get_divider(parent_rate, rate);
if (divider < 0)
return divider;
return DIV_ROUND_UP(parent_rate * 2, divider + 2);
} else if (c->flags & DIV_U16) {
divider = clk_div16_get_divider(parent_rate, rate);
if (divider < 0)
return divider;
return DIV_ROUND_UP(parent_rate, divider + 1);
}
return -EINVAL;
}
struct clk_ops tegra_periph_clk_ops = {
.is_enabled = tegra20_periph_clk_is_enabled,
.enable = tegra20_periph_clk_enable,
.disable = tegra20_periph_clk_disable,
.set_parent = tegra20_periph_clk_set_parent,
.get_parent = tegra20_periph_clk_get_parent,
.set_rate = tegra20_periph_clk_set_rate,
.round_rate = tegra20_periph_clk_round_rate,
.recalc_rate = tegra20_periph_clk_recalc_rate,
};
/* External memory controller clock ops */
static void tegra20_emc_clk_init(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
c->max_rate = __clk_get_rate(hw->clk);
}
static long tegra20_emc_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
long emc_rate;
long clk_rate;
/*
* The slowest entry in the EMC clock table that is at least as
* fast as rate.
*/
emc_rate = tegra_emc_round_rate(rate);
if (emc_rate < 0)
return c->max_rate;
/*
* The fastest rate the PLL will generate that is at most the
* requested rate.
*/
clk_rate = tegra20_periph_clk_round_rate(hw, emc_rate, NULL);
/*
* If this fails, and emc_rate > clk_rate, it's because the maximum
* rate in the EMC tables is larger than the maximum rate of the EMC
* clock. The EMC clock's max rate is the rate it was running when the
* kernel booted. Such a mismatch is probably due to using the wrong
* BCT, i.e. using a Tegra20 BCT with an EMC table written for Tegra25.
*/
WARN_ONCE(emc_rate != clk_rate,
"emc_rate %ld != clk_rate %ld",
emc_rate, clk_rate);
return emc_rate;
}
static int tegra20_emc_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
int ret;
/*
* The Tegra2 memory controller has an interlock with the clock
* block that allows memory shadowed registers to be updated,
* and then transfer them to the main registers at the same
* time as the clock update without glitches.
*/
ret = tegra_emc_set_rate(rate);
if (ret < 0)
return ret;
ret = tegra20_periph_clk_set_rate(hw, rate, parent_rate);
udelay(1);
return ret;
}
struct clk_ops tegra_emc_clk_ops = {
.init = tegra20_emc_clk_init,
.is_enabled = tegra20_periph_clk_is_enabled,
.enable = tegra20_periph_clk_enable,
.disable = tegra20_periph_clk_disable,
.set_parent = tegra20_periph_clk_set_parent,
.get_parent = tegra20_periph_clk_get_parent,
.set_rate = tegra20_emc_clk_set_rate,
.round_rate = tegra20_emc_clk_round_rate,
.recalc_rate = tegra20_periph_clk_recalc_rate,
};
/* Clock doubler ops */
static int tegra20_clk_double_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
c->state = ON;
if (!c->u.periph.clk_num)
goto out;
if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) &
PERIPH_CLK_TO_ENB_BIT(c)))
c->state = OFF;
out:
return c->state;
};
static unsigned long tegra20_clk_double_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = prate;
c->mul = 2;
c->div = 1;
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
return rate;
}
static long tegra20_clk_double_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
unsigned long output_rate = *prate;
do_div(output_rate, 2);
return output_rate;
}
static int tegra20_clk_double_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
if (rate != 2 * parent_rate)
return -EINVAL;
return 0;
}
struct clk_ops tegra_clk_double_ops = {
.is_enabled = tegra20_clk_double_is_enabled,
.enable = tegra20_periph_clk_enable,
.disable = tegra20_periph_clk_disable,
.set_rate = tegra20_clk_double_set_rate,
.recalc_rate = tegra20_clk_double_recalc_rate,
.round_rate = tegra20_clk_double_round_rate,
};
/* Audio sync clock ops */
static int tegra20_audio_sync_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
c->state = (val & (1<<4)) ? OFF : ON;
return c->state;
}
static int tegra20_audio_sync_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
clk_writel(0, c->reg);
return 0;
}
static void tegra20_audio_sync_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
clk_writel(1, c->reg);
}
static u8 tegra20_audio_sync_clk_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
int source;
source = val & 0xf;
return source;
}
static int tegra20_audio_sync_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg);
val &= ~0xf;
val |= index;
clk_writel(val, c->reg);
return 0;
}
struct clk_ops tegra_audio_sync_clk_ops = {
.is_enabled = tegra20_audio_sync_clk_is_enabled,
.enable = tegra20_audio_sync_clk_enable,
.disable = tegra20_audio_sync_clk_disable,
.set_parent = tegra20_audio_sync_clk_set_parent,
.get_parent = tegra20_audio_sync_clk_get_parent,
};
/* cdev1 and cdev2 (dap_mclk1 and dap_mclk2) ops */
static int tegra20_cdev_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
/* We could un-tristate the cdev1 or cdev2 pingroup here; this is
* currently done in the pinmux code. */
c->state = ON;
BUG_ON(!c->u.periph.clk_num);
if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) &
PERIPH_CLK_TO_ENB_BIT(c)))
c->state = OFF;
return c->state;
}
static int tegra20_cdev_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
BUG_ON(!c->u.periph.clk_num);
clk_writel(PERIPH_CLK_TO_ENB_BIT(c),
CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c));
return 0;
}
static void tegra20_cdev_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
BUG_ON(!c->u.periph.clk_num);
clk_writel(PERIPH_CLK_TO_ENB_BIT(c),
CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c));
}
static unsigned long tegra20_cdev_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
return to_clk_tegra(hw)->fixed_rate;
}
struct clk_ops tegra_cdev_clk_ops = {
.is_enabled = tegra20_cdev_clk_is_enabled,
.enable = tegra20_cdev_clk_enable,
.disable = tegra20_cdev_clk_disable,
.recalc_rate = tegra20_cdev_recalc_rate,
};
/* Tegra20 CPU clock and reset control functions */
static void tegra20_wait_cpu_in_reset(u32 cpu)
{
unsigned int reg;
do {
reg = readl(reg_clk_base +
TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET);
cpu_relax();
} while (!(reg & (1 << cpu))); /* check CPU been reset or not */
return;
}
static void tegra20_put_cpu_in_reset(u32 cpu)
{
writel(CPU_RESET(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET);
dmb();
}
static void tegra20_cpu_out_of_reset(u32 cpu)
{
writel(CPU_RESET(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR);
wmb();
}
static void tegra20_enable_cpu_clock(u32 cpu)
{
unsigned int reg;
reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
writel(reg & ~CPU_CLOCK(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
barrier();
reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
}
static void tegra20_disable_cpu_clock(u32 cpu)
{
unsigned int reg;
reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
writel(reg | CPU_CLOCK(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
}
static struct tegra_cpu_car_ops tegra20_cpu_car_ops = {
.wait_for_reset = tegra20_wait_cpu_in_reset,
.put_in_reset = tegra20_put_cpu_in_reset,
.out_of_reset = tegra20_cpu_out_of_reset,
.enable_clock = tegra20_enable_cpu_clock,
.disable_clock = tegra20_disable_cpu_clock,
};
void __init tegra20_cpu_car_ops_init(void)
{
tegra_cpu_car_ops = &tegra20_cpu_car_ops;
}
arch/arm/mach-tegra/tegra20_clocks.h 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MACH_TEGRA20_CLOCK_H
#define __MACH_TEGRA20_CLOCK_H
extern struct clk_ops tegra_clk_32k_ops;
extern struct clk_ops tegra_pll_ops;
extern struct clk_ops tegra_clk_m_ops;
extern struct clk_ops tegra_pll_div_ops;
extern struct clk_ops tegra_pllx_ops;
extern struct clk_ops tegra_plle_ops;
extern struct clk_ops tegra_clk_double_ops;
extern struct clk_ops tegra_cdev_clk_ops;
extern struct clk_ops tegra_audio_sync_clk_ops;
extern struct clk_ops tegra_super_ops;
extern struct clk_ops tegra_cpu_ops;
extern struct clk_ops tegra_twd_ops;
extern struct clk_ops tegra_cop_ops;
extern struct clk_ops tegra_bus_ops;
extern struct clk_ops tegra_blink_clk_ops;
extern struct clk_ops tegra_emc_clk_ops;
extern struct clk_ops tegra_periph_clk_ops;
extern struct clk_ops tegra_clk_shared_bus_ops;
void tegra2_periph_clk_reset(struct clk_hw *hw, bool assert);
void tegra2_cop_clk_reset(struct clk_hw *hw, bool assert);
#endif
arch/arm/mach-tegra/tegra20_clocks_data.c 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* arch/arm/mach-tegra/tegra2_clocks.c
*
* Copyright (C) 2010 Google, Inc.
* Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Colin Cross <ccross@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/clk-private.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/clk/tegra.h>
#include "clock.h"
#include "fuse.h"
#include "tegra2_emc.h"
#include "tegra20_clocks.h"
/* Clock definitions */
#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \
_parent_names, _parents, _parent) \
static struct clk tegra_##_name = { \
.hw = &tegra_##_name##_hw.hw, \
.name = #_name, \
.rate = _rate, \
.ops = _ops, \
.flags = _flags, \
.parent_names = _parent_names, \
.parents = _parents, \
.num_parents = ARRAY_SIZE(_parent_names), \
.parent = _parent, \
};
static struct clk tegra_clk_32k;
static struct clk_tegra tegra_clk_32k_hw = {
.hw = {
.clk = &tegra_clk_32k,
},
.fixed_rate = 32768,
};
static struct clk tegra_clk_32k = {
.name = "clk_32k",
.rate = 32768,
.ops = &tegra_clk_32k_ops,
.hw = &tegra_clk_32k_hw.hw,
.flags = CLK_IS_ROOT,
};
static struct clk tegra_clk_m;
static struct clk_tegra tegra_clk_m_hw = {
.hw = {
.clk = &tegra_clk_m,
},
.flags = ENABLE_ON_INIT,
.reg = 0x1fc,
.reg_shift = 28,
.max_rate = 26000000,
.fixed_rate = 0,
};
static struct clk tegra_clk_m = {
.name = "clk_m",
.ops = &tegra_clk_m_ops,
.hw = &tegra_clk_m_hw.hw,
.flags = CLK_IS_ROOT,
};
#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \
_input_max, _cf_min, _cf_max, _vco_min, \
_vco_max, _freq_table, _lock_delay, _ops, \
_fixed_rate, _parent) \
static const char *tegra_##_name##_parent_names[] = { \
#_parent, \
}; \
static struct clk *tegra_##_name##_parents[] = { \
&tegra_##_parent, \
}; \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.flags = _flags, \
.reg = _reg, \
.max_rate = _max_rate, \
.u.pll = { \
.input_min = _input_min, \
.input_max = _input_max, \
.cf_min = _cf_min, \
.cf_max = _cf_max, \
.vco_min = _vco_min, \
.vco_max = _vco_max, \
.freq_table = _freq_table, \
.lock_delay = _lock_delay, \
.fixed_rate = _fixed_rate, \
}, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent = &tegra_##_parent, \
.parent_names = tegra_##_name##_parent_names, \
.parents = tegra_##_name##_parents, \
.num_parents = 1, \
};
#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \
_max_rate, _ops, _parent, _clk_flags) \
static const char *tegra_##_name##_parent_names[] = { \
#_parent, \
}; \
static struct clk *tegra_##_name##_parents[] = { \
&tegra_##_parent, \
}; \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.flags = _flags, \
.reg = _reg, \
.max_rate = _max_rate, \
.reg_shift = _reg_shift, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra_pll_div_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent = &tegra_##_parent, \
.parent_names = tegra_##_name##_parent_names, \
.parents = tegra_##_name##_parents, \
.num_parents = 1, \
.flags = _clk_flags, \
};
static struct clk_pll_freq_table tegra_pll_s_freq_table[] = {
{32768, 12000000, 366, 1, 1, 0},
{32768, 13000000, 397, 1, 1, 0},
{32768, 19200000, 586, 1, 1, 0},
{32768, 26000000, 793, 1, 1, 0},
{0, 0, 0, 0, 0, 0},
};
DEFINE_PLL(pll_s, PLL_ALT_MISC_REG, 0xf0, 26000000, 32768, 32768, 0,
0, 12000000, 26000000, tegra_pll_s_freq_table, 300,
tegra_pll_ops, 0, clk_32k);
static struct clk_pll_freq_table tegra_pll_c_freq_table[] = {
{ 12000000, 600000000, 600, 12, 1, 8 },
{ 13000000, 600000000, 600, 13, 1, 8 },
{ 19200000, 600000000, 500, 16, 1, 6 },
{ 26000000, 600000000, 600, 26, 1, 8 },
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 600000000, 2000000, 31000000, 1000000,
6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300,
tegra_pll_ops, 0, clk_m);
DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 600000000,
tegra_pll_div_ops, pll_c, 0);
static struct clk_pll_freq_table tegra_pll_m_freq_table[] = {
{ 12000000, 666000000, 666, 12, 1, 8},
{ 13000000, 666000000, 666, 13, 1, 8},
{ 19200000, 666000000, 555, 16, 1, 8},
{ 26000000, 666000000, 666, 26, 1, 8},
{ 12000000, 600000000, 600, 12, 1, 8},
{ 13000000, 600000000, 600, 13, 1, 8},
{ 19200000, 600000000, 375, 12, 1, 6},
{ 26000000, 600000000, 600, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_m, PLL_HAS_CPCON, 0x90, 800000000, 2000000, 31000000, 1000000,
6000000, 20000000, 1200000000, tegra_pll_m_freq_table, 300,
tegra_pll_ops, 0, clk_m);
DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000,
tegra_pll_div_ops, pll_m, 0);
static struct clk_pll_freq_table tegra_pll_p_freq_table[] = {
{ 12000000, 216000000, 432, 12, 2, 8},
{ 13000000, 216000000, 432, 13, 2, 8},
{ 19200000, 216000000, 90, 4, 2, 1},
{ 26000000, 216000000, 432, 26, 2, 8},
{ 12000000, 432000000, 432, 12, 1, 8},
{ 13000000, 432000000, 432, 13, 1, 8},
{ 19200000, 432000000, 90, 4, 1, 1},
{ 26000000, 432000000, 432, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000,
2000000, 31000000, 1000000, 6000000, 20000000, 1400000000,
tegra_pll_p_freq_table, 300, tegra_pll_ops, 216000000, clk_m);
DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 0,
432000000, tegra_pll_div_ops, pll_p, 0);
DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 16,
432000000, tegra_pll_div_ops, pll_p, 0);
DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 0,
432000000, tegra_pll_div_ops, pll_p, 0);
DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 16,
432000000, tegra_pll_div_ops, pll_p, 0);
static struct clk_pll_freq_table tegra_pll_a_freq_table[] = {
{ 28800000, 56448000, 49, 25, 1, 1},
{ 28800000, 73728000, 64, 25, 1, 1},
{ 28800000, 24000000, 5, 6, 1, 1},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 73728000, 2000000, 31000000, 1000000,
6000000, 20000000, 1400000000, tegra_pll_a_freq_table, 300,
tegra_pll_ops, 0, pll_p_out1);
DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 73728000,
tegra_pll_div_ops, pll_a, 0);
static struct clk_pll_freq_table tegra_pll_d_freq_table[] = {
{ 12000000, 216000000, 216, 12, 1, 4},
{ 13000000, 216000000, 216, 13, 1, 4},
{ 19200000, 216000000, 135, 12, 1, 3},
{ 26000000, 216000000, 216, 26, 1, 4},
{ 12000000, 297000000, 99, 4, 1, 4 },
{ 12000000, 339000000, 113, 4, 1, 4 },
{ 12000000, 594000000, 594, 12, 1, 8},
{ 13000000, 594000000, 594, 13, 1, 8},
{ 19200000, 594000000, 495, 16, 1, 8},
{ 26000000, 594000000, 594, 26, 1, 8},
{ 12000000, 616000000, 616, 12, 1, 8},
{ 12000000, 1000000000, 1000, 12, 1, 12},
{ 13000000, 1000000000, 1000, 13, 1, 12},
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 12},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000,
1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table,
1000, tegra_pll_ops, 0, clk_m);
DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000,
tegra_pll_div_ops, pll_d, CLK_SET_RATE_PARENT);
static struct clk_pll_freq_table tegra_pll_u_freq_table[] = {
{ 12000000, 480000000, 960, 12, 2, 0},
{ 13000000, 480000000, 960, 13, 2, 0},
{ 19200000, 480000000, 200, 4, 2, 0},
{ 26000000, 480000000, 960, 26, 2, 0},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_u, PLLU, 0xc0, 480000000, 2000000, 40000000, 1000000, 6000000,
48000000, 960000000, tegra_pll_u_freq_table, 1000,
tegra_pll_ops, 0, clk_m);
static struct clk_pll_freq_table tegra_pll_x_freq_table[] = {
/* 1 GHz */
{ 12000000, 1000000000, 1000, 12, 1, 12},
{ 13000000, 1000000000, 1000, 13, 1, 12},
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 12},
/* 912 MHz */
{ 12000000, 912000000, 912, 12, 1, 12},
{ 13000000, 912000000, 912, 13, 1, 12},
{ 19200000, 912000000, 760, 16, 1, 8},
{ 26000000, 912000000, 912, 26, 1, 12},
/* 816 MHz */
{ 12000000, 816000000, 816, 12, 1, 12},
{ 13000000, 816000000, 816, 13, 1, 12},
{ 19200000, 816000000, 680, 16, 1, 8},
{ 26000000, 816000000, 816, 26, 1, 12},
/* 760 MHz */
{ 12000000, 760000000, 760, 12, 1, 12},
{ 13000000, 760000000, 760, 13, 1, 12},
{ 19200000, 760000000, 950, 24, 1, 8},
{ 26000000, 760000000, 760, 26, 1, 12},
/* 750 MHz */
{ 12000000, 750000000, 750, 12, 1, 12},
{ 13000000, 750000000, 750, 13, 1, 12},
{ 19200000, 750000000, 625, 16, 1, 8},
{ 26000000, 750000000, 750, 26, 1, 12},
/* 608 MHz */
{ 12000000, 608000000, 608, 12, 1, 12},
{ 13000000, 608000000, 608, 13, 1, 12},
{ 19200000, 608000000, 380, 12, 1, 8},
{ 26000000, 608000000, 608, 26, 1, 12},
/* 456 MHz */
{ 12000000, 456000000, 456, 12, 1, 12},
{ 13000000, 456000000, 456, 13, 1, 12},
{ 19200000, 456000000, 380, 16, 1, 8},
{ 26000000, 456000000, 456, 26, 1, 12},
/* 312 MHz */
{ 12000000, 312000000, 312, 12, 1, 12},
{ 13000000, 312000000, 312, 13, 1, 12},
{ 19200000, 312000000, 260, 16, 1, 8},
{ 26000000, 312000000, 312, 26, 1, 12},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG, 0xe0, 1000000000, 2000000,
31000000, 1000000, 6000000, 20000000, 1200000000,
tegra_pll_x_freq_table, 300, tegra_pllx_ops, 0, clk_m);
static struct clk_pll_freq_table tegra_pll_e_freq_table[] = {
{ 12000000, 100000000, 200, 24, 1, 0 },
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 12000000, 12000000, 0, 0,
0, 0, tegra_pll_e_freq_table, 0, tegra_plle_ops, 0, clk_m);
static const char *tegra_common_parent_names[] = {
"clk_m",
};
static struct clk *tegra_common_parents[] = {
&tegra_clk_m,
};
static struct clk tegra_clk_d;
static struct clk_tegra tegra_clk_d_hw = {
.hw = {
.clk = &tegra_clk_d,
},
.flags = PERIPH_NO_RESET,
.reg = 0x34,
.reg_shift = 12,
.max_rate = 52000000,
.u.periph = {
.clk_num = 90,
},
};
static struct clk tegra_clk_d = {
.name = "clk_d",
.hw = &tegra_clk_d_hw.hw,
.ops = &tegra_clk_double_ops,
.parent = &tegra_clk_m,
.parent_names = tegra_common_parent_names,
.parents = tegra_common_parents,
.num_parents = ARRAY_SIZE(tegra_common_parent_names),
};
static struct clk tegra_cdev1;
static struct clk_tegra tegra_cdev1_hw = {
.hw = {
.clk = &tegra_cdev1,
},
.fixed_rate = 26000000,
.u.periph = {
.clk_num = 94,
},
};
static struct clk tegra_cdev1 = {
.name = "cdev1",
.hw = &tegra_cdev1_hw.hw,
.ops = &tegra_cdev_clk_ops,
.flags = CLK_IS_ROOT,
};
/* dap_mclk2, belongs to the cdev2 pingroup. */
static struct clk tegra_cdev2;
static struct clk_tegra tegra_cdev2_hw = {
.hw = {
.clk = &tegra_cdev2,
},
.fixed_rate = 26000000,
.u.periph = {
.clk_num = 93,
},
};
static struct clk tegra_cdev2 = {
.name = "cdev2",
.hw = &tegra_cdev2_hw.hw,
.ops = &tegra_cdev_clk_ops,
.flags = CLK_IS_ROOT,
};
/* initialized before peripheral clocks */
static struct clk_mux_sel mux_audio_sync_clk[8+1];
static const struct audio_sources {
const char *name;
int value;
} mux_audio_sync_clk_sources[] = {
{ .name = "spdif_in", .value = 0 },
{ .name = "i2s1", .value = 1 },
{ .name = "i2s2", .value = 2 },
{ .name = "pll_a_out0", .value = 4 },
#if 0 /* FIXME: not implemented */
{ .name = "ac97", .value = 3 },
{ .name = "ext_audio_clk2", .value = 5 },
{ .name = "ext_audio_clk1", .value = 6 },
{ .name = "ext_vimclk", .value = 7 },
#endif
{ NULL, 0 }
};
static const char *audio_parent_names[] = {
"spdif_in",
"i2s1",
"i2s2",
"dummy",
"pll_a_out0",
"dummy",
"dummy",
"dummy",
};
static struct clk *audio_parents[] = {
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
static struct clk tegra_audio;
static struct clk_tegra tegra_audio_hw = {
.hw = {
.clk = &tegra_audio,
},
.reg = 0x38,
.max_rate = 73728000,
};
DEFINE_CLK_TEGRA(audio, 0, &tegra_audio_sync_clk_ops, 0, audio_parent_names,
audio_parents, NULL);
static const char *audio_2x_parent_names[] = {
"audio",
};
static struct clk *audio_2x_parents[] = {
&tegra_audio,
};
static struct clk tegra_audio_2x;
static struct clk_tegra tegra_audio_2x_hw = {
.hw = {
.clk = &tegra_audio_2x,
},
.flags = PERIPH_NO_RESET,
.max_rate = 48000000,
.reg = 0x34,
.reg_shift = 8,
.u.periph = {
.clk_num = 89,
},
};
DEFINE_CLK_TEGRA(audio_2x, 0, &tegra_clk_double_ops, 0, audio_2x_parent_names,
audio_2x_parents, &tegra_audio);
static struct clk_lookup tegra_audio_clk_lookups[] = {
{ .con_id = "audio", .clk = &tegra_audio },
{ .con_id = "audio_2x", .clk = &tegra_audio_2x }
};
/* This is called after peripheral clocks are initialized, as the
* audio_sync clock depends on some of the peripheral clocks.
*/
static void init_audio_sync_clock_mux(void)
{
int i;
struct clk_mux_sel *sel = mux_audio_sync_clk;
const struct audio_sources *src = mux_audio_sync_clk_sources;
struct clk_lookup *lookup;
for (i = 0; src->name; i++, sel++, src++) {
sel->input = tegra_get_clock_by_name(src->name);
if (!sel->input)
pr_err("%s: could not find clk %s\n", __func__,
src->name);
audio_parents[src->value] = sel->input;
sel->value = src->value;
}
lookup = tegra_audio_clk_lookups;
for (i = 0; i < ARRAY_SIZE(tegra_audio_clk_lookups); i++, lookup++) {
struct clk *c = lookup->clk;
struct clk_tegra *clk = to_clk_tegra(c->hw);
__clk_init(NULL, c);
INIT_LIST_HEAD(&clk->shared_bus_list);
clk->lookup.con_id = lookup->con_id;
clk->lookup.clk = c;
clkdev_add(&clk->lookup);
tegra_clk_add(c);
}
}
static const char *mux_cclk[] = {
"clk_m",
"pll_c",
"clk_32k",
"pll_m",
"pll_p",
"pll_p_out4",
"pll_p_out3",
"clk_d",
"pll_x",
};
static struct clk *mux_cclk_p[] = {
&tegra_clk_m,
&tegra_pll_c,
&tegra_clk_32k,
&tegra_pll_m,
&tegra_pll_p,
&tegra_pll_p_out4,
&tegra_pll_p_out3,
&tegra_clk_d,
&tegra_pll_x,
};
static const char *mux_sclk[] = {
"clk_m",
"pll_c_out1",
"pll_p_out4",
"pllp_p_out3",
"pll_p_out2",
"clk_d",
"clk_32k",
"pll_m_out1",
};
static struct clk *mux_sclk_p[] = {
&tegra_clk_m,
&tegra_pll_c_out1,
&tegra_pll_p_out4,
&tegra_pll_p_out3,
&tegra_pll_p_out2,
&tegra_clk_d,
&tegra_clk_32k,
&tegra_pll_m_out1,
};
static struct clk tegra_cclk;
static struct clk_tegra tegra_cclk_hw = {
.hw = {
.clk = &tegra_cclk,
},
.reg = 0x20,
.max_rate = 1000000000,
};
DEFINE_CLK_TEGRA(cclk, 0, &tegra_super_ops, 0, mux_cclk,
mux_cclk_p, NULL);
static const char *mux_twd[] = {
"cclk",
};
static struct clk *mux_twd_p[] = {
&tegra_cclk,
};
static struct clk tegra_clk_twd;
static struct clk_tegra tegra_clk_twd_hw = {
.hw = {
.clk = &tegra_clk_twd,
},
.max_rate = 1000000000,
.mul = 1,
.div = 4,
};
static struct clk tegra_clk_twd = {
.name = "twd",
.ops = &tegra_twd_ops,
.hw = &tegra_clk_twd_hw.hw,
.parent = &tegra_cclk,
.parent_names = mux_twd,
.parents = mux_twd_p,
.num_parents = ARRAY_SIZE(mux_twd),
};
static struct clk tegra_sclk;
static struct clk_tegra tegra_sclk_hw = {
.hw = {
.clk = &tegra_sclk,
},
.reg = 0x28,
.max_rate = 240000000,
.min_rate = 120000000,
};
DEFINE_CLK_TEGRA(sclk, 0, &tegra_super_ops, 0, mux_sclk,
mux_sclk_p, NULL);
static const char *tegra_cop_parent_names[] = {
"tegra_sclk",
};
static struct clk *tegra_cop_parents[] = {
&tegra_sclk,
};
static struct clk tegra_cop;
static struct clk_tegra tegra_cop_hw = {
.hw = {
.clk = &tegra_cop,
},
.max_rate = 240000000,
.reset = &tegra2_cop_clk_reset,
};
DEFINE_CLK_TEGRA(cop, 0, &tegra_cop_ops, CLK_SET_RATE_PARENT,
tegra_cop_parent_names, tegra_cop_parents, &tegra_sclk);
static const char *tegra_hclk_parent_names[] = {
"tegra_sclk",
};
static struct clk *tegra_hclk_parents[] = {
&tegra_sclk,
};
static struct clk tegra_hclk;
static struct clk_tegra tegra_hclk_hw = {
.hw = {
.clk = &tegra_hclk,
},
.flags = DIV_BUS,
.reg = 0x30,
.reg_shift = 4,
.max_rate = 240000000,
};
DEFINE_CLK_TEGRA(hclk, 0, &tegra_bus_ops, 0, tegra_hclk_parent_names,
tegra_hclk_parents, &tegra_sclk);
static const char *tegra_pclk_parent_names[] = {
"tegra_hclk",
};
static struct clk *tegra_pclk_parents[] = {
&tegra_hclk,
};
static struct clk tegra_pclk;
static struct clk_tegra tegra_pclk_hw = {
.hw = {
.clk = &tegra_pclk,
},
.flags = DIV_BUS,
.reg = 0x30,
.reg_shift = 0,
.max_rate = 120000000,
};
DEFINE_CLK_TEGRA(pclk, 0, &tegra_bus_ops, 0, tegra_pclk_parent_names,
tegra_pclk_parents, &tegra_hclk);
static const char *tegra_blink_parent_names[] = {
"clk_32k",
};
static struct clk *tegra_blink_parents[] = {
&tegra_clk_32k,
};
static struct clk tegra_blink;
static struct clk_tegra tegra_blink_hw = {
.hw = {
.clk = &tegra_blink,
},
.reg = 0x40,
.max_rate = 32768,
};
DEFINE_CLK_TEGRA(blink, 0, &tegra_blink_clk_ops, 0, tegra_blink_parent_names,
tegra_blink_parents, &tegra_clk_32k);
static const char *mux_pllm_pllc_pllp_plla[] = {
"pll_m",
"pll_c",
"pll_p",
"pll_a_out0",
};
static struct clk *mux_pllm_pllc_pllp_plla_p[] = {
&tegra_pll_m,
&tegra_pll_c,
&tegra_pll_p,
&tegra_pll_a_out0,
};
static const char *mux_pllm_pllc_pllp_clkm[] = {
"pll_m",
"pll_c",
"pll_p",
"clk_m",
};
static struct clk *mux_pllm_pllc_pllp_clkm_p[] = {
&tegra_pll_m,
&tegra_pll_c,
&tegra_pll_p,
&tegra_clk_m,
};
static const char *mux_pllp_pllc_pllm_clkm[] = {
"pll_p",
"pll_c",
"pll_m",
"clk_m",
};
static struct clk *mux_pllp_pllc_pllm_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_pll_m,
&tegra_clk_m,
};
static const char *mux_pllaout0_audio2x_pllp_clkm[] = {
"pll_a_out0",
"audio_2x",
"pll_p",
"clk_m",
};
static struct clk *mux_pllaout0_audio2x_pllp_clkm_p[] = {
&tegra_pll_a_out0,
&tegra_audio_2x,
&tegra_pll_p,
&tegra_clk_m,
};
static const char *mux_pllp_plld_pllc_clkm[] = {
"pllp",
"pll_d_out0",
"pll_c",
"clk_m",
};
static struct clk *mux_pllp_plld_pllc_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_d_out0,
&tegra_pll_c,
&tegra_clk_m,
};
static const char *mux_pllp_pllc_audio_clkm_clk32[] = {
"pll_p",
"pll_c",
"audio",
"clk_m",
"clk_32k",
};
static struct clk *mux_pllp_pllc_audio_clkm_clk32_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_audio,
&tegra_clk_m,
&tegra_clk_32k,
};
static const char *mux_pllp_pllc_pllm[] = {
"pll_p",
"pll_c",
"pll_m"
};
static struct clk *mux_pllp_pllc_pllm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_pll_m,
};
static const char *mux_clk_m[] = {
"clk_m",
};
static struct clk *mux_clk_m_p[] = {
&tegra_clk_m,
};
static const char *mux_pllp_out3[] = {
"pll_p_out3",
};
static struct clk *mux_pllp_out3_p[] = {
&tegra_pll_p_out3,
};
static const char *mux_plld[] = {
"pll_d",
};
static struct clk *mux_plld_p[] = {
&tegra_pll_d,
};
static const char *mux_clk_32k[] = {
"clk_32k",
};
static struct clk *mux_clk_32k_p[] = {
&tegra_clk_32k,
};
static const char *mux_pclk[] = {
"pclk",
};
static struct clk *mux_pclk_p[] = {
&tegra_pclk,
};
static struct clk tegra_emc;
static struct clk_tegra tegra_emc_hw = {
.hw = {
.clk = &tegra_emc,
},
.reg = 0x19c,
.max_rate = 800000000,
.flags = MUX | DIV_U71 | PERIPH_EMC_ENB,
.reset = &tegra2_periph_clk_reset,
.u.periph = {
.clk_num = 57,
},
};
DEFINE_CLK_TEGRA(emc, 0, &tegra_emc_clk_ops, 0, mux_pllm_pllc_pllp_clkm,
mux_pllm_pllc_pllp_clkm_p, NULL);
#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \
_max, _inputs, _flags) \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.lookup = { \
.dev_id = _dev, \
.con_id = _con, \
}, \
.reg = _reg, \
.flags = _flags, \
.max_rate = _max, \
.u.periph = { \
.clk_num = _clk_num, \
}, \
.reset = tegra2_periph_clk_reset, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra_periph_clk_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent_names = _inputs, \
.parents = _inputs##_p, \
.num_parents = ARRAY_SIZE(_inputs), \
};
PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 108000000, mux_pclk, 0);
PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET);
PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0);
PERIPH_CLK(i2s1, "tegra20-i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(i2s2, "tegra20-i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(spdif_out, "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(spdif_in, "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71);
PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71 | MUX_PWM);
PERIPH_CLK(spi, "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(xio, "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(twc, "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(ide, "ide", NULL, 25, 0x144, 100000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 164000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(vde, "tegra-avp", "vde", 61, 0x1c8, 250000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */
/* FIXME: what is la? */
PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 92000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(i2c1, "tegra-i2c.0", "div-clk", 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(i2c2, "tegra-i2c.1", "div-clk", 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(i2c3, "tegra-i2c.2", "div-clk", 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(dvc, "tegra-i2c.3", "div-clk", 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET); /* scales with voltage and process_id */
PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); /* scales with voltage and process_id */
PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(dsi, "dsi", NULL, 48, 0, 500000000, mux_plld, 0); /* scales with voltage */
PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 72000000, mux_pllp_out3, 0);
PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */
PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET);
PERIPH_CLK(pex, NULL, "pex", 70, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET);
PERIPH_CLK(afi, NULL, "afi", 72, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET);
PERIPH_CLK(pcie_xclk, NULL, "pcie_xclk", 74, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET);
static struct clk *tegra_list_clks[] = {
&tegra_apbdma,
&tegra_rtc,
&tegra_timer,
&tegra_i2s1,
&tegra_i2s2,
&tegra_spdif_out,
&tegra_spdif_in,
&tegra_pwm,
&tegra_spi,
&tegra_xio,
&tegra_twc,
&tegra_sbc1,
&tegra_sbc2,
&tegra_sbc3,
&tegra_sbc4,
&tegra_ide,
&tegra_ndflash,
&tegra_vfir,
&tegra_sdmmc1,
&tegra_sdmmc2,
&tegra_sdmmc3,
&tegra_sdmmc4,
&tegra_vcp,
&tegra_bsea,
&tegra_bsev,
&tegra_vde,
&tegra_csite,
&tegra_la,
&tegra_owr,
&tegra_nor,
&tegra_mipi,
&tegra_i2c1,
&tegra_i2c2,
&tegra_i2c3,
&tegra_dvc,
&tegra_uarta,
&tegra_uartb,
&tegra_uartc,
&tegra_uartd,
&tegra_uarte,
&tegra_3d,
&tegra_2d,
&tegra_vi,
&tegra_vi_sensor,
&tegra_epp,
&tegra_mpe,
&tegra_host1x,
&tegra_cve,
&tegra_tvo,
&tegra_hdmi,
&tegra_tvdac,
&tegra_disp1,
&tegra_disp2,
&tegra_usbd,
&tegra_usb2,
&tegra_usb3,
&tegra_dsi,
&tegra_csi,
&tegra_isp,
&tegra_csus,
&tegra_pex,
&tegra_afi,
&tegra_pcie_xclk,
};
#define CLK_DUPLICATE(_name, _dev, _con) \
{ \
.name = _name, \
.lookup = { \
.dev_id = _dev, \
.con_id = _con, \
}, \
}
/* Some clocks may be used by different drivers depending on the board
* configuration. List those here to register them twice in the clock lookup
* table under two names.
*/
static struct clk_duplicate tegra_clk_duplicates[] = {
CLK_DUPLICATE("uarta", "serial8250.0", NULL),
CLK_DUPLICATE("uartb", "serial8250.1", NULL),
CLK_DUPLICATE("uartc", "serial8250.2", NULL),
CLK_DUPLICATE("uartd", "serial8250.3", NULL),
CLK_DUPLICATE("uarte", "serial8250.4", NULL),
CLK_DUPLICATE("usbd", "utmip-pad", NULL),
CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
CLK_DUPLICATE("usbd", "tegra-otg", NULL),
CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"),
CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"),
CLK_DUPLICATE("epp", "tegra_grhost", "epp"),
CLK_DUPLICATE("mpe", "tegra_grhost", "mpe"),
CLK_DUPLICATE("cop", "tegra-avp", "cop"),
CLK_DUPLICATE("vde", "tegra-aes", "vde"),
CLK_DUPLICATE("cclk", NULL, "cpu"),
CLK_DUPLICATE("twd", "smp_twd", NULL),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.0", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.1", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.2", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.3", "fast-clk"),
CLK_DUPLICATE("pll_p", "tegradc.0", "parent"),
CLK_DUPLICATE("pll_p", "tegradc.1", "parent"),
CLK_DUPLICATE("pll_d_out0", "hdmi", "parent"),
};
#define CLK(dev, con, ck) \
{ \
.dev_id = dev, \
.con_id = con, \
.clk = ck, \
}
static struct clk *tegra_ptr_clks[] = {
&tegra_clk_32k,
&tegra_pll_s,
&tegra_clk_m,
&tegra_pll_m,
&tegra_pll_m_out1,
&tegra_pll_c,
&tegra_pll_c_out1,
&tegra_pll_p,
&tegra_pll_p_out1,
&tegra_pll_p_out2,
&tegra_pll_p_out3,
&tegra_pll_p_out4,
&tegra_pll_a,
&tegra_pll_a_out0,
&tegra_pll_d,
&tegra_pll_d_out0,
&tegra_pll_u,
&tegra_pll_x,
&tegra_pll_e,
&tegra_cclk,
&tegra_clk_twd,
&tegra_sclk,
&tegra_hclk,
&tegra_pclk,
&tegra_clk_d,
&tegra_cdev1,
&tegra_cdev2,
&tegra_blink,
&tegra_cop,
&tegra_emc,
};
static void tegra2_init_one_clock(struct clk *c)
{
struct clk_tegra *clk = to_clk_tegra(c->hw);
int ret;
ret = __clk_init(NULL, c);
if (ret)
pr_err("clk init failed %s\n", __clk_get_name(c));
INIT_LIST_HEAD(&clk->shared_bus_list);
if (!clk->lookup.dev_id && !clk->lookup.con_id)
clk->lookup.con_id = c->name;
clk->lookup.clk = c;
clkdev_add(&clk->lookup);
tegra_clk_add(c);
}
void __init tegra2_init_clocks(void)
{
int i;
struct clk *c;
for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++)
tegra2_init_one_clock(tegra_ptr_clks[i]);
for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++)
tegra2_init_one_clock(tegra_list_clks[i]);
for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) {
c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name);
if (!c) {
pr_err("%s: Unknown duplicate clock %s\n", __func__,
tegra_clk_duplicates[i].name);
continue;
}
tegra_clk_duplicates[i].lookup.clk = c;
clkdev_add(&tegra_clk_duplicates[i].lookup);
}
init_audio_sync_clock_mux();
tegra20_cpu_car_ops_init();
}
arch/arm/mach-tegra/tegra30_clocks.c 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* arch/arm/mach-tegra/tegra30_clocks.c
*
* Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/syscore_ops.h>
#include <linux/clk/tegra.h>
#include <asm/clkdev.h>
#include <mach/powergate.h>
#include "clock.h"
#include "fuse.h"
#include "iomap.h"
#define USE_PLL_LOCK_BITS 0
#define RST_DEVICES_L 0x004
#define RST_DEVICES_H 0x008
#define RST_DEVICES_U 0x00C
#define RST_DEVICES_V 0x358
#define RST_DEVICES_W 0x35C
#define RST_DEVICES_SET_L 0x300
#define RST_DEVICES_CLR_L 0x304
#define RST_DEVICES_SET_V 0x430
#define RST_DEVICES_CLR_V 0x434
#define RST_DEVICES_NUM 5
#define CLK_OUT_ENB_L 0x010
#define CLK_OUT_ENB_H 0x014
#define CLK_OUT_ENB_U 0x018
#define CLK_OUT_ENB_V 0x360
#define CLK_OUT_ENB_W 0x364
#define CLK_OUT_ENB_SET_L 0x320
#define CLK_OUT_ENB_CLR_L 0x324
#define CLK_OUT_ENB_SET_V 0x440
#define CLK_OUT_ENB_CLR_V 0x444
#define CLK_OUT_ENB_NUM 5
#define RST_DEVICES_V_SWR_CPULP_RST_DIS (0x1 << 1)
#define CLK_OUT_ENB_V_CLK_ENB_CPULP_EN (0x1 << 1)
#define PERIPH_CLK_TO_BIT(c) (1 << (c->u.periph.clk_num % 32))
#define PERIPH_CLK_TO_RST_REG(c) \
periph_clk_to_reg((c), RST_DEVICES_L, RST_DEVICES_V, 4)
#define PERIPH_CLK_TO_RST_SET_REG(c) \
periph_clk_to_reg((c), RST_DEVICES_SET_L, RST_DEVICES_SET_V, 8)
#define PERIPH_CLK_TO_RST_CLR_REG(c) \
periph_clk_to_reg((c), RST_DEVICES_CLR_L, RST_DEVICES_CLR_V, 8)
#define PERIPH_CLK_TO_ENB_REG(c) \
periph_clk_to_reg((c), CLK_OUT_ENB_L, CLK_OUT_ENB_V, 4)
#define PERIPH_CLK_TO_ENB_SET_REG(c) \
periph_clk_to_reg((c), CLK_OUT_ENB_SET_L, CLK_OUT_ENB_SET_V, 8)
#define PERIPH_CLK_TO_ENB_CLR_REG(c) \
periph_clk_to_reg((c), CLK_OUT_ENB_CLR_L, CLK_OUT_ENB_CLR_V, 8)
#define CLK_MASK_ARM 0x44
#define MISC_CLK_ENB 0x48
#define OSC_CTRL 0x50
#define OSC_CTRL_OSC_FREQ_MASK (0xF<<28)
#define OSC_CTRL_OSC_FREQ_13MHZ (0x0<<28)
#define OSC_CTRL_OSC_FREQ_19_2MHZ (0x4<<28)
#define OSC_CTRL_OSC_FREQ_12MHZ (0x8<<28)
#define OSC_CTRL_OSC_FREQ_26MHZ (0xC<<28)
#define OSC_CTRL_OSC_FREQ_16_8MHZ (0x1<<28)
#define OSC_CTRL_OSC_FREQ_38_4MHZ (0x5<<28)
#define OSC_CTRL_OSC_FREQ_48MHZ (0x9<<28)
#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK)
#define OSC_CTRL_PLL_REF_DIV_MASK (3<<26)
#define OSC_CTRL_PLL_REF_DIV_1 (0<<26)
#define OSC_CTRL_PLL_REF_DIV_2 (1<<26)
#define OSC_CTRL_PLL_REF_DIV_4 (2<<26)
#define OSC_FREQ_DET 0x58
#define OSC_FREQ_DET_TRIG (1<<31)
#define OSC_FREQ_DET_STATUS 0x5C
#define OSC_FREQ_DET_BUSY (1<<31)
#define OSC_FREQ_DET_CNT_MASK 0xFFFF
#define PERIPH_CLK_SOURCE_I2S1 0x100
#define PERIPH_CLK_SOURCE_EMC 0x19c
#define PERIPH_CLK_SOURCE_OSC 0x1fc
#define PERIPH_CLK_SOURCE_NUM1 \
((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4)
#define PERIPH_CLK_SOURCE_G3D2 0x3b0
#define PERIPH_CLK_SOURCE_SE 0x42c
#define PERIPH_CLK_SOURCE_NUM2 \
((PERIPH_CLK_SOURCE_SE - PERIPH_CLK_SOURCE_G3D2) / 4 + 1)
#define AUDIO_DLY_CLK 0x49c
#define AUDIO_SYNC_CLK_SPDIF 0x4b4
#define PERIPH_CLK_SOURCE_NUM3 \
((AUDIO_SYNC_CLK_SPDIF - AUDIO_DLY_CLK) / 4 + 1)
#define PERIPH_CLK_SOURCE_NUM (PERIPH_CLK_SOURCE_NUM1 + \
PERIPH_CLK_SOURCE_NUM2 + \
PERIPH_CLK_SOURCE_NUM3)
#define CPU_SOFTRST_CTRL 0x380
#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF
#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF
#define PERIPH_CLK_SOURCE_DIV_SHIFT 0
#define PERIPH_CLK_SOURCE_DIVIDLE_SHIFT 8
#define PERIPH_CLK_SOURCE_DIVIDLE_VAL 50
#define PERIPH_CLK_UART_DIV_ENB (1<<24)
#define PERIPH_CLK_VI_SEL_EX_SHIFT 24
#define PERIPH_CLK_VI_SEL_EX_MASK (0x3<<PERIPH_CLK_VI_SEL_EX_SHIFT)
#define PERIPH_CLK_NAND_DIV_EX_ENB (1<<8)
#define PERIPH_CLK_DTV_POLARITY_INV (1<<25)
#define AUDIO_SYNC_SOURCE_MASK 0x0F
#define AUDIO_SYNC_DISABLE_BIT 0x10
#define AUDIO_SYNC_TAP_NIBBLE_SHIFT(c) ((c->reg_shift - 24) * 4)
#define PLL_BASE 0x0
#define PLL_BASE_BYPASS (1<<31)
#define PLL_BASE_ENABLE (1<<30)
#define PLL_BASE_REF_ENABLE (1<<29)
#define PLL_BASE_OVERRIDE (1<<28)
#define PLL_BASE_LOCK (1<<27)
#define PLL_BASE_DIVP_MASK (0x7<<20)
#define PLL_BASE_DIVP_SHIFT 20
#define PLL_BASE_DIVN_MASK (0x3FF<<8)
#define PLL_BASE_DIVN_SHIFT 8
#define PLL_BASE_DIVM_MASK (0x1F)
#define PLL_BASE_DIVM_SHIFT 0
#define PLL_OUT_RATIO_MASK (0xFF<<8)
#define PLL_OUT_RATIO_SHIFT 8
#define PLL_OUT_OVERRIDE (1<<2)
#define PLL_OUT_CLKEN (1<<1)
#define PLL_OUT_RESET_DISABLE (1<<0)
#define PLL_MISC(c) \
(((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc)
#define PLL_MISC_LOCK_ENABLE(c) \
(((c)->flags & (PLLU | PLLD)) ? (1<<22) : (1<<18))
#define PLL_MISC_DCCON_SHIFT 20
#define PLL_MISC_CPCON_SHIFT 8
#define PLL_MISC_CPCON_MASK (0xF<<PLL_MISC_CPCON_SHIFT)
#define PLL_MISC_LFCON_SHIFT 4
#define PLL_MISC_LFCON_MASK (0xF<<PLL_MISC_LFCON_SHIFT)
#define PLL_MISC_VCOCON_SHIFT 0
#define PLL_MISC_VCOCON_MASK (0xF<<PLL_MISC_VCOCON_SHIFT)
#define PLLD_MISC_CLKENABLE (1<<30)
#define PLLU_BASE_POST_DIV (1<<20)
#define PLLD_BASE_DSIB_MUX_SHIFT 25
#define PLLD_BASE_DSIB_MUX_MASK (1<<PLLD_BASE_DSIB_MUX_SHIFT)
#define PLLD_BASE_CSI_CLKENABLE (1<<26)
#define PLLD_MISC_DSI_CLKENABLE (1<<30)
#define PLLD_MISC_DIV_RST (1<<23)
#define PLLD_MISC_DCCON_SHIFT 12
#define PLLDU_LFCON_SET_DIVN 600
/* FIXME: OUT_OF_TABLE_CPCON per pll */
#define OUT_OF_TABLE_CPCON 0x8
#define SUPER_CLK_MUX 0x00
#define SUPER_STATE_SHIFT 28
#define SUPER_STATE_MASK (0xF << SUPER_STATE_SHIFT)
#define SUPER_STATE_STANDBY (0x0 << SUPER_STATE_SHIFT)
#define SUPER_STATE_IDLE (0x1 << SUPER_STATE_SHIFT)
#define SUPER_STATE_RUN (0x2 << SUPER_STATE_SHIFT)
#define SUPER_STATE_IRQ (0x3 << SUPER_STATE_SHIFT)
#define SUPER_STATE_FIQ (0x4 << SUPER_STATE_SHIFT)
#define SUPER_LP_DIV2_BYPASS (0x1 << 16)
#define SUPER_SOURCE_MASK 0xF
#define SUPER_FIQ_SOURCE_SHIFT 12
#define SUPER_IRQ_SOURCE_SHIFT 8
#define SUPER_RUN_SOURCE_SHIFT 4
#define SUPER_IDLE_SOURCE_SHIFT 0
#define SUPER_CLK_DIVIDER 0x04
#define SUPER_CLOCK_DIV_U71_SHIFT 16
#define SUPER_CLOCK_DIV_U71_MASK (0xff << SUPER_CLOCK_DIV_U71_SHIFT)
/* guarantees safe cpu backup */
#define SUPER_CLOCK_DIV_U71_MIN 0x2
#define BUS_CLK_DISABLE (1<<3)
#define BUS_CLK_DIV_MASK 0x3
#define PMC_CTRL 0x0
#define PMC_CTRL_BLINK_ENB (1 << 7)
#define PMC_DPD_PADS_ORIDE 0x1c
#define PMC_DPD_PADS_ORIDE_BLINK_ENB (1 << 20)
#define PMC_BLINK_TIMER_DATA_ON_SHIFT 0
#define PMC_BLINK_TIMER_DATA_ON_MASK 0x7fff
#define PMC_BLINK_TIMER_ENB (1 << 15)
#define PMC_BLINK_TIMER_DATA_OFF_SHIFT 16
#define PMC_BLINK_TIMER_DATA_OFF_MASK 0xffff
#define PMC_PLLP_WB0_OVERRIDE 0xf8
#define PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE (1 << 12)
#define UTMIP_PLL_CFG2 0x488
#define UTMIP_PLL_CFG2_STABLE_COUNT(x) (((x) & 0xfff) << 6)
#define UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(x) (((x) & 0x3f) << 18)
#define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN (1 << 0)
#define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN (1 << 2)
#define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN (1 << 4)
#define UTMIP_PLL_CFG1 0x484
#define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x) (((x) & 0x1f) << 27)
#define UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(x) (((x) & 0xfff) << 0)
#define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN (1 << 14)
#define UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN (1 << 12)
#define UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN (1 << 16)
#define PLLE_BASE_CML_ENABLE (1<<31)
#define PLLE_BASE_ENABLE (1<<30)
#define PLLE_BASE_DIVCML_SHIFT 24
#define PLLE_BASE_DIVCML_MASK (0xf<<PLLE_BASE_DIVCML_SHIFT)
#define PLLE_BASE_DIVP_SHIFT 16
#define PLLE_BASE_DIVP_MASK (0x3f<<PLLE_BASE_DIVP_SHIFT)
#define PLLE_BASE_DIVN_SHIFT 8
#define PLLE_BASE_DIVN_MASK (0xFF<<PLLE_BASE_DIVN_SHIFT)
#define PLLE_BASE_DIVM_SHIFT 0
#define PLLE_BASE_DIVM_MASK (0xFF<<PLLE_BASE_DIVM_SHIFT)
#define PLLE_BASE_DIV_MASK \
(PLLE_BASE_DIVCML_MASK | PLLE_BASE_DIVP_MASK | \
PLLE_BASE_DIVN_MASK | PLLE_BASE_DIVM_MASK)
#define PLLE_BASE_DIV(m, n, p, cml) \
(((cml)<<PLLE_BASE_DIVCML_SHIFT) | ((p)<<PLLE_BASE_DIVP_SHIFT) | \
((n)<<PLLE_BASE_DIVN_SHIFT) | ((m)<<PLLE_BASE_DIVM_SHIFT))
#define PLLE_MISC_SETUP_BASE_SHIFT 16
#define PLLE_MISC_SETUP_BASE_MASK (0xFFFF<<PLLE_MISC_SETUP_BASE_SHIFT)
#define PLLE_MISC_READY (1<<15)
#define PLLE_MISC_LOCK (1<<11)
#define PLLE_MISC_LOCK_ENABLE (1<<9)
#define PLLE_MISC_SETUP_EX_SHIFT 2
#define PLLE_MISC_SETUP_EX_MASK (0x3<<PLLE_MISC_SETUP_EX_SHIFT)
#define PLLE_MISC_SETUP_MASK \
(PLLE_MISC_SETUP_BASE_MASK | PLLE_MISC_SETUP_EX_MASK)
#define PLLE_MISC_SETUP_VALUE \
((0x7<<PLLE_MISC_SETUP_BASE_SHIFT) | (0x0<<PLLE_MISC_SETUP_EX_SHIFT))
#define PLLE_SS_CTRL 0x68
#define PLLE_SS_INCINTRV_SHIFT 24
#define PLLE_SS_INCINTRV_MASK (0x3f<<PLLE_SS_INCINTRV_SHIFT)
#define PLLE_SS_INC_SHIFT 16
#define PLLE_SS_INC_MASK (0xff<<PLLE_SS_INC_SHIFT)
#define PLLE_SS_MAX_SHIFT 0
#define PLLE_SS_MAX_MASK (0x1ff<<PLLE_SS_MAX_SHIFT)
#define PLLE_SS_COEFFICIENTS_MASK \
(PLLE_SS_INCINTRV_MASK | PLLE_SS_INC_MASK | PLLE_SS_MAX_MASK)
#define PLLE_SS_COEFFICIENTS_12MHZ \
((0x18<<PLLE_SS_INCINTRV_SHIFT) | (0x1<<PLLE_SS_INC_SHIFT) | \
(0x24<<PLLE_SS_MAX_SHIFT))
#define PLLE_SS_DISABLE ((1<<12) | (1<<11) | (1<<10))
#define PLLE_AUX 0x48c
#define PLLE_AUX_PLLP_SEL (1<<2)
#define PLLE_AUX_CML_SATA_ENABLE (1<<1)
#define PLLE_AUX_CML_PCIE_ENABLE (1<<0)
#define PMC_SATA_PWRGT 0x1ac
#define PMC_SATA_PWRGT_PLLE_IDDQ_VALUE (1<<5)
#define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL (1<<4)
#define ROUND_DIVIDER_UP 0
#define ROUND_DIVIDER_DOWN 1
/* FIXME: recommended safety delay after lock is detected */
#define PLL_POST_LOCK_DELAY 100
/* Tegra CPU clock and reset control regs */
#define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c
#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340
#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344
#define TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR 0x34c
#define TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS 0x470
#define CPU_CLOCK(cpu) (0x1 << (8 + cpu))
#define CPU_RESET(cpu) (0x1111ul << (cpu))
#define CLK_RESET_CCLK_BURST 0x20
#define CLK_RESET_CCLK_DIVIDER 0x24
#define CLK_RESET_PLLX_BASE 0xe0
#define CLK_RESET_PLLX_MISC 0xe4
#define CLK_RESET_SOURCE_CSITE 0x1d4
#define CLK_RESET_CCLK_BURST_POLICY_SHIFT 28
#define CLK_RESET_CCLK_RUN_POLICY_SHIFT 4
#define CLK_RESET_CCLK_IDLE_POLICY_SHIFT 0
#define CLK_RESET_CCLK_IDLE_POLICY 1
#define CLK_RESET_CCLK_RUN_POLICY 2
#define CLK_RESET_CCLK_BURST_POLICY_PLLX 8
#ifdef CONFIG_PM_SLEEP
static struct cpu_clk_suspend_context {
u32 pllx_misc;
u32 pllx_base;
u32 cpu_burst;
u32 clk_csite_src;
u32 cclk_divider;
} tegra30_cpu_clk_sctx;
#endif
/**
* Structure defining the fields for USB UTMI clocks Parameters.
*/
struct utmi_clk_param {
/* Oscillator Frequency in KHz */
u32 osc_frequency;
/* UTMIP PLL Enable Delay Count */
u8 enable_delay_count;
/* UTMIP PLL Stable count */
u8 stable_count;
/* UTMIP PLL Active delay count */
u8 active_delay_count;
/* UTMIP PLL Xtal frequency count */
u8 xtal_freq_count;
};
static const struct utmi_clk_param utmi_parameters[] = {
{
.osc_frequency = 13000000,
.enable_delay_count = 0x02,
.stable_count = 0x33,
.active_delay_count = 0x05,
.xtal_freq_count = 0x7F
},
{
.osc_frequency = 19200000,
.enable_delay_count = 0x03,
.stable_count = 0x4B,
.active_delay_count = 0x06,
.xtal_freq_count = 0xBB},
{
.osc_frequency = 12000000,
.enable_delay_count = 0x02,
.stable_count = 0x2F,
.active_delay_count = 0x04,
.xtal_freq_count = 0x76
},
{
.osc_frequency = 26000000,
.enable_delay_count = 0x04,
.stable_count = 0x66,
.active_delay_count = 0x09,
.xtal_freq_count = 0xFE
},
{
.osc_frequency = 16800000,
.enable_delay_count = 0x03,
.stable_count = 0x41,
.active_delay_count = 0x0A,
.xtal_freq_count = 0xA4
},
};
static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE);
static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE);
static void __iomem *misc_gp_hidrev_base = IO_ADDRESS(TEGRA_APB_MISC_BASE);
#define MISC_GP_HIDREV 0x804
/*
* Some peripheral clocks share an enable bit, so refcount the enable bits
* in registers CLK_ENABLE_L, ... CLK_ENABLE_W
*/
static int tegra_periph_clk_enable_refcount[CLK_OUT_ENB_NUM * 32];
#define clk_writel(value, reg) \
__raw_writel(value, reg_clk_base + (reg))
#define clk_readl(reg) \
__raw_readl(reg_clk_base + (reg))
#define pmc_writel(value, reg) \
__raw_writel(value, reg_pmc_base + (reg))
#define pmc_readl(reg) \
__raw_readl(reg_pmc_base + (reg))
#define chipid_readl() \
__raw_readl(misc_gp_hidrev_base + MISC_GP_HIDREV)
#define clk_writel_delay(value, reg) \
do { \
__raw_writel((value), reg_clk_base + (reg)); \
udelay(2); \
} while (0)
static inline int clk_set_div(struct clk_tegra *c, u32 n)
{
struct clk *clk = c->hw.clk;
return clk_set_rate(clk,
(__clk_get_rate(__clk_get_parent(clk)) + n - 1) / n);
}
static inline u32 periph_clk_to_reg(
struct clk_tegra *c, u32 reg_L, u32 reg_V, int offs)
{
u32 reg = c->u.periph.clk_num / 32;
BUG_ON(reg >= RST_DEVICES_NUM);
if (reg < 3)
reg = reg_L + (reg * offs);
else
reg = reg_V + ((reg - 3) * offs);
return reg;
}
static unsigned long clk_measure_input_freq(void)
{
u32 clock_autodetect;
clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET);
do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY);
clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS);
if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) {
return 12000000;
} else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) {
return 13000000;
} else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) {
return 19200000;
} else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) {
return 26000000;
} else if (clock_autodetect >= 1025 - 3 && clock_autodetect <= 1025 + 3) {
return 16800000;
} else if (clock_autodetect >= 2344 - 3 && clock_autodetect <= 2344 + 3) {
return 38400000;
} else if (clock_autodetect >= 2928 - 3 && clock_autodetect <= 2928 + 3) {
return 48000000;
} else {
pr_err("%s: Unexpected clock autodetect value %d", __func__,
clock_autodetect);
BUG();
return 0;
}
}
static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate,
u32 flags, u32 round_mode)
{
s64 divider_u71 = parent_rate;
if (!rate)
return -EINVAL;
if (!(flags & DIV_U71_INT))
divider_u71 *= 2;
if (round_mode == ROUND_DIVIDER_UP)
divider_u71 += rate - 1;
do_div(divider_u71, rate);
if (flags & DIV_U71_INT)
divider_u71 *= 2;
if (divider_u71 - 2 < 0)
return 0;
if (divider_u71 - 2 > 255)
return -EINVAL;
return divider_u71 - 2;
}
static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate)
{
s64 divider_u16;
divider_u16 = parent_rate;
if (!rate)
return -EINVAL;
divider_u16 += rate - 1;
do_div(divider_u16, rate);
if (divider_u16 - 1 < 0)
return 0;
if (divider_u16 - 1 > 0xFFFF)
return -EINVAL;
return divider_u16 - 1;
}
static unsigned long tegra30_clk_fixed_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
return to_clk_tegra(hw)->fixed_rate;
}
struct clk_ops tegra30_clk_32k_ops = {
.recalc_rate = tegra30_clk_fixed_recalc_rate,
};
/* clk_m functions */
static unsigned long tegra30_clk_m_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
if (!to_clk_tegra(hw)->fixed_rate)
to_clk_tegra(hw)->fixed_rate = clk_measure_input_freq();
return to_clk_tegra(hw)->fixed_rate;
}
static void tegra30_clk_m_init(struct clk_hw *hw)
{
u32 osc_ctrl = clk_readl(OSC_CTRL);
u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK;
u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK;
switch (to_clk_tegra(hw)->fixed_rate) {
case 12000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
break;
case 13000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
break;
case 19200000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
break;
case 26000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
break;
case 16800000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_16_8MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
break;
case 38400000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_38_4MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_2);
break;
case 48000000:
auto_clock_control |= OSC_CTRL_OSC_FREQ_48MHZ;
BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_4);
break;
default:
pr_err("%s: Unexpected clock rate %ld", __func__,
to_clk_tegra(hw)->fixed_rate);
BUG();
}
clk_writel(auto_clock_control, OSC_CTRL);
}
struct clk_ops tegra30_clk_m_ops = {
.init = tegra30_clk_m_init,
.recalc_rate = tegra30_clk_m_recalc_rate,
};
static unsigned long tegra30_clk_m_div_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra_clk_m_div_ops = {
.recalc_rate = tegra30_clk_m_div_recalc_rate,
};
/* PLL reference divider functions */
static unsigned long tegra30_pll_ref_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long rate = parent_rate;
u32 pll_ref_div = clk_readl(OSC_CTRL) & OSC_CTRL_PLL_REF_DIV_MASK;
switch (pll_ref_div) {
case OSC_CTRL_PLL_REF_DIV_1:
c->div = 1;
break;
case OSC_CTRL_PLL_REF_DIV_2:
c->div = 2;
break;
case OSC_CTRL_PLL_REF_DIV_4:
c->div = 4;
break;
default:
pr_err("%s: Invalid pll ref divider %d", __func__, pll_ref_div);
BUG();
}
c->mul = 1;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra_pll_ref_ops = {
.recalc_rate = tegra30_pll_ref_recalc_rate,
};
/* super clock functions */
/* "super clocks" on tegra30 have two-stage muxes, fractional 7.1 divider and
* clock skipping super divider. We will ignore the clock skipping divider,
* since we can't lower the voltage when using the clock skip, but we can if
* we lower the PLL frequency. We will use 7.1 divider for CPU super-clock
* only when its parent is a fixed rate PLL, since we can't change PLL rate
* in this case.
*/
static void tegra30_super_clk_init(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
struct clk_tegra *p =
to_clk_tegra(__clk_get_hw(__clk_get_parent(hw->clk)));
c->state = ON;
if (c->flags & DIV_U71) {
/* Init safe 7.1 divider value (does not affect PLLX path) */
clk_writel(SUPER_CLOCK_DIV_U71_MIN << SUPER_CLOCK_DIV_U71_SHIFT,
c->reg + SUPER_CLK_DIVIDER);
c->mul = 2;
c->div = 2;
if (!(p->flags & PLLX))
c->div += SUPER_CLOCK_DIV_U71_MIN;
} else
clk_writel(0, c->reg + SUPER_CLK_DIVIDER);
}
static u8 tegra30_super_clk_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
int source;
int shift;
val = clk_readl(c->reg + SUPER_CLK_MUX);
BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ?
SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
source = (val >> shift) & SUPER_SOURCE_MASK;
if (c->flags & DIV_2)
source |= val & SUPER_LP_DIV2_BYPASS;
return source;
}
static int tegra30_super_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
struct clk_tegra *p =
to_clk_tegra(__clk_get_hw(clk_get_parent(hw->clk)));
u32 val;
int shift;
val = clk_readl(c->reg + SUPER_CLK_MUX);
BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ?
SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
/* For LP mode super-clock switch between PLLX direct
and divided-by-2 outputs is allowed only when other
than PLLX clock source is current parent */
if ((c->flags & DIV_2) && (p->flags & PLLX) &&
((index ^ val) & SUPER_LP_DIV2_BYPASS)) {
if (p->flags & PLLX)
return -EINVAL;
val ^= SUPER_LP_DIV2_BYPASS;
clk_writel_delay(val, c->reg);
}
val &= ~(SUPER_SOURCE_MASK << shift);
val |= (index & SUPER_SOURCE_MASK) << shift;
/* 7.1 divider for CPU super-clock does not affect
PLLX path */
if (c->flags & DIV_U71) {
u32 div = 0;
if (!(p->flags & PLLX)) {
div = clk_readl(c->reg +
SUPER_CLK_DIVIDER);
div &= SUPER_CLOCK_DIV_U71_MASK;
div >>= SUPER_CLOCK_DIV_U71_SHIFT;
}
c->div = div + 2;
c->mul = 2;
}
clk_writel_delay(val, c->reg);
return 0;
}
/*
* Do not use super clocks "skippers", since dividing using a clock skipper
* does not allow the voltage to be scaled down. Instead adjust the rate of
* the parent clock. This requires that the parent of a super clock have no
* other children, otherwise the rate will change underneath the other
* children. Special case: if fixed rate PLL is CPU super clock parent the
* rate of this PLL can't be changed, and it has many other children. In
* this case use 7.1 fractional divider to adjust the super clock rate.
*/
static int tegra30_super_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
struct clk *parent = __clk_get_parent(hw->clk);
struct clk_tegra *cparent = to_clk_tegra(__clk_get_hw(parent));
if ((c->flags & DIV_U71) && (cparent->flags & PLL_FIXED)) {
int div = clk_div71_get_divider(parent_rate,
rate, c->flags, ROUND_DIVIDER_DOWN);
div = max(div, SUPER_CLOCK_DIV_U71_MIN);
clk_writel(div << SUPER_CLOCK_DIV_U71_SHIFT,
c->reg + SUPER_CLK_DIVIDER);
c->div = div + 2;
c->mul = 2;
return 0;
}
return 0;
}
static unsigned long tegra30_super_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static long tegra30_super_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
struct clk *parent = __clk_get_parent(hw->clk);
struct clk_tegra *cparent = to_clk_tegra(__clk_get_hw(parent));
int mul = 2;
int div;
if ((c->flags & DIV_U71) && (cparent->flags & PLL_FIXED)) {
div = clk_div71_get_divider(*prate,
rate, c->flags, ROUND_DIVIDER_DOWN);
div = max(div, SUPER_CLOCK_DIV_U71_MIN) + 2;
rate = *prate * mul;
rate += div - 1; /* round up */
do_div(rate, c->div);
return rate;
}
return *prate;
}
struct clk_ops tegra30_super_ops = {
.init = tegra30_super_clk_init,
.set_parent = tegra30_super_clk_set_parent,
.get_parent = tegra30_super_clk_get_parent,
.recalc_rate = tegra30_super_clk_recalc_rate,
.round_rate = tegra30_super_clk_round_rate,
.set_rate = tegra30_super_clk_set_rate,
};
static unsigned long tegra30_twd_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra30_twd_ops = {
.recalc_rate = tegra30_twd_clk_recalc_rate,
};
/* bus clock functions */
static int tegra30_bus_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON;
return c->state;
}
static int tegra30_bus_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg);
val &= ~(BUS_CLK_DISABLE << c->reg_shift);
clk_writel(val, c->reg);
return 0;
}
static void tegra30_bus_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg);
val |= BUS_CLK_DISABLE << c->reg_shift;
clk_writel(val, c->reg);
}
static unsigned long tegra30_bus_clk_recalc_rate(struct clk_hw *hw,
unsigned long prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
u64 rate = prate;
c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1;
c->mul = 1;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static int tegra30_bus_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
int ret = -EINVAL;
u32 val;
int i;
val = clk_readl(c->reg);
for (i = 1; i <= 4; i++) {
if (rate == parent_rate / i) {
val &= ~(BUS_CLK_DIV_MASK << c->reg_shift);
val |= (i - 1) << c->reg_shift;
clk_writel(val, c->reg);
c->div = i;
c->mul = 1;
ret = 0;
break;
}
}
return ret;
}
static long tegra30_bus_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
unsigned long parent_rate = *prate;
s64 divider;
if (rate >= parent_rate)
return parent_rate;
divider = parent_rate;
divider += rate - 1;
do_div(divider, rate);
if (divider < 0)
return divider;
if (divider > 4)
divider = 4;
do_div(parent_rate, divider);
return parent_rate;
}
struct clk_ops tegra30_bus_ops = {
.is_enabled = tegra30_bus_clk_is_enabled,
.enable = tegra30_bus_clk_enable,
.disable = tegra30_bus_clk_disable,
.set_rate = tegra30_bus_clk_set_rate,
.round_rate = tegra30_bus_clk_round_rate,
.recalc_rate = tegra30_bus_clk_recalc_rate,
};
/* Blink output functions */
static int tegra30_blink_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = pmc_readl(PMC_CTRL);
c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF;
return c->state;
}
static int tegra30_blink_clk_enable(struct clk_hw *hw)
{
u32 val;
val = pmc_readl(PMC_DPD_PADS_ORIDE);
pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE);
val = pmc_readl(PMC_CTRL);
pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL);
return 0;
}
static void tegra30_blink_clk_disable(struct clk_hw *hw)
{
u32 val;
val = pmc_readl(PMC_CTRL);
pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL);
val = pmc_readl(PMC_DPD_PADS_ORIDE);
pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE);
}
static int tegra30_blink_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (rate >= parent_rate) {
c->div = 1;
pmc_writel(0, c->reg);
} else {
unsigned int on_off;
u32 val;
on_off = DIV_ROUND_UP(parent_rate / 8, rate);
c->div = on_off * 8;
val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) <<
PMC_BLINK_TIMER_DATA_ON_SHIFT;
on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK;
on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT;
val |= on_off;
val |= PMC_BLINK_TIMER_ENB;
pmc_writel(val, c->reg);
}
return 0;
}
static unsigned long tegra30_blink_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
u32 val;
u32 mul;
u32 div;
u32 on_off;
mul = 1;
val = pmc_readl(c->reg);
if (val & PMC_BLINK_TIMER_ENB) {
on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) &
PMC_BLINK_TIMER_DATA_ON_MASK;
val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT;
val &= PMC_BLINK_TIMER_DATA_OFF_MASK;
on_off += val;
/* each tick in the blink timer is 4 32KHz clocks */
div = on_off * 4;
} else {
div = 1;
}
if (mul != 0 && div != 0) {
rate *= mul;
rate += div - 1; /* round up */
do_div(rate, div);
}
return rate;
}
static long tegra30_blink_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
int div;
int mul;
long round_rate = *prate;
mul = 1;
if (rate >= *prate) {
div = 1;
} else {
div = DIV_ROUND_UP(*prate / 8, rate);
div *= 8;
}
round_rate *= mul;
round_rate += div - 1;
do_div(round_rate, div);
return round_rate;
}
struct clk_ops tegra30_blink_clk_ops = {
.is_enabled = tegra30_blink_clk_is_enabled,
.enable = tegra30_blink_clk_enable,
.disable = tegra30_blink_clk_disable,
.recalc_rate = tegra30_blink_clk_recalc_rate,
.round_rate = tegra30_blink_clk_round_rate,
.set_rate = tegra30_blink_clk_set_rate,
};
static void tegra30_utmi_param_configure(struct clk_hw *hw)
{
unsigned long main_rate =
__clk_get_rate(__clk_get_parent(__clk_get_parent(hw->clk)));
u32 reg;
int i;
for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) {
if (main_rate == utmi_parameters[i].osc_frequency)
break;
}
if (i >= ARRAY_SIZE(utmi_parameters)) {
pr_err("%s: Unexpected main rate %lu\n", __func__, main_rate);
return;
}
reg = clk_readl(UTMIP_PLL_CFG2);
/* Program UTMIP PLL stable and active counts */
/* [FIXME] arclk_rst.h says WRONG! This should be 1ms -> 0x50 Check! */
reg &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0);
reg |= UTMIP_PLL_CFG2_STABLE_COUNT(
utmi_parameters[i].stable_count);
reg &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);
reg |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(
utmi_parameters[i].active_delay_count);
/* Remove power downs from UTMIP PLL control bits */
reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN;
reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN;
reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN;
clk_writel(reg, UTMIP_PLL_CFG2);
/* Program UTMIP PLL delay and oscillator frequency counts */
reg = clk_readl(UTMIP_PLL_CFG1);
reg &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
reg |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(
utmi_parameters[i].enable_delay_count);
reg &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0);
reg |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(
utmi_parameters[i].xtal_freq_count);
/* Remove power downs from UTMIP PLL control bits */
reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN;
reg &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN;
clk_writel(reg, UTMIP_PLL_CFG1);
}
/* PLL Functions */
static int tegra30_pll_clk_wait_for_lock(struct clk_tegra *c, u32 lock_reg,
u32 lock_bit)
{
int ret = 0;
#if USE_PLL_LOCK_BITS
int i;
for (i = 0; i < c->u.pll.lock_delay; i++) {
if (clk_readl(lock_reg) & lock_bit) {
udelay(PLL_POST_LOCK_DELAY);
return 0;
}
udelay(2); /* timeout = 2 * lock time */
}
pr_err("Timed out waiting for lock bit on pll %s",
__clk_get_name(hw->clk));
ret = -1;
#else
udelay(c->u.pll.lock_delay);
#endif
return ret;
}
static int tegra30_pll_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg + PLL_BASE);
c->state = (val & PLL_BASE_ENABLE) ? ON : OFF;
return c->state;
}
static void tegra30_pll_clk_init(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (c->flags & PLLU)
tegra30_utmi_param_configure(hw);
}
static int tegra30_pll_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
#if USE_PLL_LOCK_BITS
val = clk_readl(c->reg + PLL_MISC(c));
val |= PLL_MISC_LOCK_ENABLE(c);
clk_writel(val, c->reg + PLL_MISC(c));
#endif
val = clk_readl(c->reg + PLL_BASE);
val &= ~PLL_BASE_BYPASS;
val |= PLL_BASE_ENABLE;
clk_writel(val, c->reg + PLL_BASE);
if (c->flags & PLLM) {
val = pmc_readl(PMC_PLLP_WB0_OVERRIDE);
val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
pmc_writel(val, PMC_PLLP_WB0_OVERRIDE);
}
tegra30_pll_clk_wait_for_lock(c, c->reg + PLL_BASE, PLL_BASE_LOCK);
return 0;
}
static void tegra30_pll_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk));
val = clk_readl(c->reg);
val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE);
clk_writel(val, c->reg);
if (c->flags & PLLM) {
val = pmc_readl(PMC_PLLP_WB0_OVERRIDE);
val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
pmc_writel(val, PMC_PLLP_WB0_OVERRIDE);
}
}
static int tegra30_pll_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val, p_div, old_base;
unsigned long input_rate;
const struct clk_pll_freq_table *sel;
struct clk_pll_freq_table cfg;
if (c->flags & PLL_FIXED) {
int ret = 0;
if (rate != c->u.pll.fixed_rate) {
pr_err("%s: Can not change %s fixed rate %lu to %lu\n",
__func__, __clk_get_name(hw->clk),
c->u.pll.fixed_rate, rate);
ret = -EINVAL;
}
return ret;
}
if (c->flags & PLLM) {
if (rate != __clk_get_rate(hw->clk)) {
pr_err("%s: Can not change memory %s rate in flight\n",
__func__, __clk_get_name(hw->clk));
return -EINVAL;
}
}
p_div = 0;
input_rate = parent_rate;
/* Check if the target rate is tabulated */
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == input_rate && sel->output_rate == rate) {
if (c->flags & PLLU) {
BUG_ON(sel->p < 1 || sel->p > 2);
if (sel->p == 1)
p_div = PLLU_BASE_POST_DIV;
} else {
BUG_ON(sel->p < 1);
for (val = sel->p; val > 1; val >>= 1)
p_div++;
p_div <<= PLL_BASE_DIVP_SHIFT;
}
break;
}
}
/* Configure out-of-table rate */
if (sel->input_rate == 0) {
unsigned long cfreq;
BUG_ON(c->flags & PLLU);
sel = &cfg;
switch (input_rate) {
case 12000000:
case 26000000:
cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000;
break;
case 13000000:
cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000;
break;
case 16800000:
case 19200000:
cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000;
break;
default:
pr_err("%s: Unexpected reference rate %lu\n",
__func__, input_rate);
BUG();
}
/* Raise VCO to guarantee 0.5% accuracy */
for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq;
cfg.output_rate <<= 1)
p_div++;
cfg.p = 0x1 << p_div;
cfg.m = input_rate / cfreq;
cfg.n = cfg.output_rate / cfreq;
cfg.cpcon = OUT_OF_TABLE_CPCON;
if ((cfg.m > (PLL_BASE_DIVM_MASK >> PLL_BASE_DIVM_SHIFT)) ||
(cfg.n > (PLL_BASE_DIVN_MASK >> PLL_BASE_DIVN_SHIFT)) ||
(p_div > (PLL_BASE_DIVP_MASK >> PLL_BASE_DIVP_SHIFT)) ||
(cfg.output_rate > c->u.pll.vco_max)) {
pr_err("%s: Failed to set %s out-of-table rate %lu\n",
__func__, __clk_get_name(hw->clk), rate);
return -EINVAL;
}
p_div <<= PLL_BASE_DIVP_SHIFT;
}
c->mul = sel->n;
c->div = sel->m * sel->p;
old_base = val = clk_readl(c->reg + PLL_BASE);
val &= ~(PLL_BASE_DIVM_MASK | PLL_BASE_DIVN_MASK |
((c->flags & PLLU) ? PLLU_BASE_POST_DIV : PLL_BASE_DIVP_MASK));
val |= (sel->m << PLL_BASE_DIVM_SHIFT) |
(sel->n << PLL_BASE_DIVN_SHIFT) | p_div;
if (val == old_base)
return 0;
if (c->state == ON) {
tegra30_pll_clk_disable(hw);
val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE);
}
clk_writel(val, c->reg + PLL_BASE);
if (c->flags & PLL_HAS_CPCON) {
val = clk_readl(c->reg + PLL_MISC(c));
val &= ~PLL_MISC_CPCON_MASK;
val |= sel->cpcon << PLL_MISC_CPCON_SHIFT;
if (c->flags & (PLLU | PLLD)) {
val &= ~PLL_MISC_LFCON_MASK;
if (sel->n >= PLLDU_LFCON_SET_DIVN)
val |= 0x1 << PLL_MISC_LFCON_SHIFT;
} else if (c->flags & (PLLX | PLLM)) {
val &= ~(0x1 << PLL_MISC_DCCON_SHIFT);
if (rate >= (c->u.pll.vco_max >> 1))
val |= 0x1 << PLL_MISC_DCCON_SHIFT;
}
clk_writel(val, c->reg + PLL_MISC(c));
}
if (c->state == ON)
tegra30_pll_clk_enable(hw);
c->u.pll.fixed_rate = rate;
return 0;
}
static long tegra30_pll_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long input_rate = *prate;
u64 output_rate = *prate;
const struct clk_pll_freq_table *sel;
struct clk_pll_freq_table cfg;
int mul;
int div;
u32 p_div;
u32 val;
if (c->flags & PLL_FIXED)
return c->u.pll.fixed_rate;
if (c->flags & PLLM)
return __clk_get_rate(hw->clk);
p_div = 0;
/* Check if the target rate is tabulated */
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == input_rate && sel->output_rate == rate) {
if (c->flags & PLLU) {
BUG_ON(sel->p < 1 || sel->p > 2);
if (sel->p == 1)
p_div = PLLU_BASE_POST_DIV;
} else {
BUG_ON(sel->p < 1);
for (val = sel->p; val > 1; val >>= 1)
p_div++;
p_div <<= PLL_BASE_DIVP_SHIFT;
}
break;
}
}
if (sel->input_rate == 0) {
unsigned long cfreq;
BUG_ON(c->flags & PLLU);
sel = &cfg;
switch (input_rate) {
case 12000000:
case 26000000:
cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000;
break;
case 13000000:
cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000;
break;
case 16800000:
case 19200000:
cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000;
break;
default:
pr_err("%s: Unexpected reference rate %lu\n",
__func__, input_rate);
BUG();
}
/* Raise VCO to guarantee 0.5% accuracy */
for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq;
cfg.output_rate <<= 1)
p_div++;
cfg.p = 0x1 << p_div;
cfg.m = input_rate / cfreq;
cfg.n = cfg.output_rate / cfreq;
}
mul = sel->n;
div = sel->m * sel->p;
output_rate *= mul;
output_rate += div - 1; /* round up */
do_div(output_rate, div);
return output_rate;
}
static unsigned long tegra30_pll_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
u32 val = clk_readl(c->reg + PLL_BASE);
if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) {
const struct clk_pll_freq_table *sel;
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == parent_rate &&
sel->output_rate == c->u.pll.fixed_rate) {
c->mul = sel->n;
c->div = sel->m * sel->p;
break;
}
}
pr_err("Clock %s has unknown fixed frequency\n",
__clk_get_name(hw->clk));
BUG();
} else if (val & PLL_BASE_BYPASS) {
c->mul = 1;
c->div = 1;
} else {
c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT;
c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT;
if (c->flags & PLLU)
c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2;
else
c->div *= (0x1 << ((val & PLL_BASE_DIVP_MASK) >>
PLL_BASE_DIVP_SHIFT));
}
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra30_pll_ops = {
.is_enabled = tegra30_pll_clk_is_enabled,
.init = tegra30_pll_clk_init,
.enable = tegra30_pll_clk_enable,
.disable = tegra30_pll_clk_disable,
.recalc_rate = tegra30_pll_recalc_rate,
.round_rate = tegra30_pll_round_rate,
.set_rate = tegra30_pll_clk_set_rate,
};
int tegra30_plld_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val, mask, reg;
switch (p) {
case TEGRA_CLK_PLLD_CSI_OUT_ENB:
mask = PLLD_BASE_CSI_CLKENABLE;
reg = c->reg + PLL_BASE;
break;
case TEGRA_CLK_PLLD_DSI_OUT_ENB:
mask = PLLD_MISC_DSI_CLKENABLE;
reg = c->reg + PLL_MISC(c);
break;
case TEGRA_CLK_PLLD_MIPI_MUX_SEL:
if (!(c->flags & PLL_ALT_MISC_REG)) {
mask = PLLD_BASE_DSIB_MUX_MASK;
reg = c->reg + PLL_BASE;
break;
}
/* fall through - error since PLLD2 does not have MUX_SEL control */
default:
return -EINVAL;
}
val = clk_readl(reg);
if (setting)
val |= mask;
else
val &= ~mask;
clk_writel(val, reg);
return 0;
}
static int tegra30_plle_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg + PLL_BASE);
c->state = (val & PLLE_BASE_ENABLE) ? ON : OFF;
return c->state;
}
static void tegra30_plle_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg + PLL_BASE);
val &= ~(PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE);
clk_writel(val, c->reg + PLL_BASE);
}
static void tegra30_plle_training(struct clk_tegra *c)
{
u32 val;
/* PLLE is already disabled, and setup cleared;
* create falling edge on PLLE IDDQ input */
val = pmc_readl(PMC_SATA_PWRGT);
val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
pmc_writel(val, PMC_SATA_PWRGT);
val = pmc_readl(PMC_SATA_PWRGT);
val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL;
pmc_writel(val, PMC_SATA_PWRGT);
val = pmc_readl(PMC_SATA_PWRGT);
val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
pmc_writel(val, PMC_SATA_PWRGT);
do {
val = clk_readl(c->reg + PLL_MISC(c));
} while (!(val & PLLE_MISC_READY));
}
static int tegra30_plle_configure(struct clk_hw *hw, bool force_training)
{
struct clk_tegra *c = to_clk_tegra(hw);
struct clk *parent = __clk_get_parent(hw->clk);
const struct clk_pll_freq_table *sel;
u32 val;
unsigned long rate = c->u.pll.fixed_rate;
unsigned long input_rate = __clk_get_rate(parent);
for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
if (sel->input_rate == input_rate && sel->output_rate == rate)
break;
}
if (sel->input_rate == 0)
return -ENOSYS;
/* disable PLLE, clear setup fiels */
tegra30_plle_clk_disable(hw);
val = clk_readl(c->reg + PLL_MISC(c));
val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK);
clk_writel(val, c->reg + PLL_MISC(c));
/* training */
val = clk_readl(c->reg + PLL_MISC(c));
if (force_training || (!(val & PLLE_MISC_READY)))
tegra30_plle_training(c);
/* configure dividers, setup, disable SS */
val = clk_readl(c->reg + PLL_BASE);
val &= ~PLLE_BASE_DIV_MASK;
val |= PLLE_BASE_DIV(sel->m, sel->n, sel->p, sel->cpcon);
clk_writel(val, c->reg + PLL_BASE);
c->mul = sel->n;
c->div = sel->m * sel->p;
val = clk_readl(c->reg + PLL_MISC(c));
val |= PLLE_MISC_SETUP_VALUE;
val |= PLLE_MISC_LOCK_ENABLE;
clk_writel(val, c->reg + PLL_MISC(c));
val = clk_readl(PLLE_SS_CTRL);
val |= PLLE_SS_DISABLE;
clk_writel(val, PLLE_SS_CTRL);
/* enable and lock PLLE*/
val = clk_readl(c->reg + PLL_BASE);
val |= (PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE);
clk_writel(val, c->reg + PLL_BASE);
tegra30_pll_clk_wait_for_lock(c, c->reg + PLL_MISC(c), PLLE_MISC_LOCK);
return 0;
}
static int tegra30_plle_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
return tegra30_plle_configure(hw, !c->set);
}
static unsigned long tegra30_plle_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long rate = parent_rate;
u32 val;
val = clk_readl(c->reg + PLL_BASE);
c->mul = (val & PLLE_BASE_DIVN_MASK) >> PLLE_BASE_DIVN_SHIFT;
c->div = (val & PLLE_BASE_DIVM_MASK) >> PLLE_BASE_DIVM_SHIFT;
c->div *= (val & PLLE_BASE_DIVP_MASK) >> PLLE_BASE_DIVP_SHIFT;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra30_plle_ops = {
.is_enabled = tegra30_plle_clk_is_enabled,
.enable = tegra30_plle_clk_enable,
.disable = tegra30_plle_clk_disable,
.recalc_rate = tegra30_plle_clk_recalc_rate,
};
/* Clock divider ops */
static int tegra30_pll_div_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (c->flags & DIV_U71) {
u32 val = clk_readl(c->reg);
val >>= c->reg_shift;
c->state = (val & PLL_OUT_CLKEN) ? ON : OFF;
if (!(val & PLL_OUT_RESET_DISABLE))
c->state = OFF;
} else {
c->state = ON;
}
return c->state;
}
static int tegra30_pll_div_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
u32 new_val;
pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk));
if (c->flags & DIV_U71) {
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
new_val &= 0xFFFF;
new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE;
val &= ~(0xFFFF << c->reg_shift);
val |= new_val << c->reg_shift;
clk_writel_delay(val, c->reg);
return 0;
} else if (c->flags & DIV_2) {
return 0;
}
return -EINVAL;
}
static void tegra30_pll_div_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
u32 new_val;
pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk));
if (c->flags & DIV_U71) {
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
new_val &= 0xFFFF;
new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE);
val &= ~(0xFFFF << c->reg_shift);
val |= new_val << c->reg_shift;
clk_writel_delay(val, c->reg);
}
}
static int tegra30_pll_div_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
u32 new_val;
int divider_u71;
if (c->flags & DIV_U71) {
divider_u71 = clk_div71_get_divider(
parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
if (divider_u71 >= 0) {
val = clk_readl(c->reg);
new_val = val >> c->reg_shift;
new_val &= 0xFFFF;
if (c->flags & DIV_U71_FIXED)
new_val |= PLL_OUT_OVERRIDE;
new_val &= ~PLL_OUT_RATIO_MASK;
new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT;
val &= ~(0xFFFF << c->reg_shift);
val |= new_val << c->reg_shift;
clk_writel_delay(val, c->reg);
c->div = divider_u71 + 2;
c->mul = 2;
c->fixed_rate = rate;
return 0;
}
} else if (c->flags & DIV_2) {
c->fixed_rate = rate;
return 0;
}
return -EINVAL;
}
static unsigned long tegra30_pll_div_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
if (c->flags & DIV_U71) {
u32 divu71;
u32 val = clk_readl(c->reg);
val >>= c->reg_shift;
divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT;
c->div = (divu71 + 2);
c->mul = 2;
} else if (c->flags & DIV_2) {
if (c->flags & (PLLD | PLLX)) {
c->div = 2;
c->mul = 1;
} else
BUG();
} else {
c->div = 1;
c->mul = 1;
}
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static long tegra30_pll_div_clk_round_rate(struct clk_hw *hw,
unsigned long rate, unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk));
int divider;
if (prate)
parent_rate = *prate;
if (c->flags & DIV_U71) {
divider = clk_div71_get_divider(
parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
if (divider < 0)
return divider;
return DIV_ROUND_UP(parent_rate * 2, divider + 2);
} else if (c->flags & DIV_2) {
*prate = rate * 2;
return rate;
}
return -EINVAL;
}
struct clk_ops tegra30_pll_div_ops = {
.is_enabled = tegra30_pll_div_clk_is_enabled,
.enable = tegra30_pll_div_clk_enable,
.disable = tegra30_pll_div_clk_disable,
.set_rate = tegra30_pll_div_clk_set_rate,
.recalc_rate = tegra30_pll_div_clk_recalc_rate,
.round_rate = tegra30_pll_div_clk_round_rate,
};
/* Periph clk ops */
static inline u32 periph_clk_source_mask(struct clk_tegra *c)
{
if (c->flags & MUX8)
return 7 << 29;
else if (c->flags & MUX_PWM)
return 3 << 28;
else if (c->flags & MUX_CLK_OUT)
return 3 << (c->u.periph.clk_num + 4);
else if (c->flags & PLLD)
return PLLD_BASE_DSIB_MUX_MASK;
else
return 3 << 30;
}
static inline u32 periph_clk_source_shift(struct clk_tegra *c)
{
if (c->flags & MUX8)
return 29;
else if (c->flags & MUX_PWM)
return 28;
else if (c->flags & MUX_CLK_OUT)
return c->u.periph.clk_num + 4;
else if (c->flags & PLLD)
return PLLD_BASE_DSIB_MUX_SHIFT;
else
return 30;
}
static int tegra30_periph_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
c->state = ON;
if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c)))
c->state = OFF;
if (!(c->flags & PERIPH_NO_RESET))
if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & PERIPH_CLK_TO_BIT(c))
c->state = OFF;
return c->state;
}
static int tegra30_periph_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++;
if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1)
return 0;
clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_SET_REG(c));
if (!(c->flags & PERIPH_NO_RESET) &&
!(c->flags & PERIPH_MANUAL_RESET)) {
if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) &
PERIPH_CLK_TO_BIT(c)) {
udelay(5); /* reset propagation delay */
clk_writel(PERIPH_CLK_TO_BIT(c),
PERIPH_CLK_TO_RST_CLR_REG(c));
}
}
return 0;
}
static void tegra30_periph_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long val;
tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--;
if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 0)
return;
/* If peripheral is in the APB bus then read the APB bus to
* flush the write operation in apb bus. This will avoid the
* peripheral access after disabling clock*/
if (c->flags & PERIPH_ON_APB)
val = chipid_readl();
clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_CLR_REG(c));
}
void tegra30_periph_clk_reset(struct clk_hw *hw, bool assert)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long val;
if (!(c->flags & PERIPH_NO_RESET)) {
if (assert) {
/* If peripheral is in the APB bus then read the APB
* bus to flush the write operation in apb bus. This
* will avoid the peripheral access after disabling
* clock */
if (c->flags & PERIPH_ON_APB)
val = chipid_readl();
clk_writel(PERIPH_CLK_TO_BIT(c),
PERIPH_CLK_TO_RST_SET_REG(c));
} else
clk_writel(PERIPH_CLK_TO_BIT(c),
PERIPH_CLK_TO_RST_CLR_REG(c));
}
}
static int tegra30_periph_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
if (!(c->flags & MUX))
return (index == 0) ? 0 : (-EINVAL);
val = clk_readl(c->reg);
val &= ~periph_clk_source_mask(c);
val |= (index << periph_clk_source_shift(c));
clk_writel_delay(val, c->reg);
return 0;
}
static u8 tegra30_periph_clk_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
int source = (val & periph_clk_source_mask(c)) >>
periph_clk_source_shift(c);
if (!(c->flags & MUX))
return 0;
return source;
}
static int tegra30_periph_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
int divider;
if (c->flags & DIV_U71) {
divider = clk_div71_get_divider(
parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
if (divider >= 0) {
val = clk_readl(c->reg);
val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK;
val |= divider;
if (c->flags & DIV_U71_UART) {
if (divider)
val |= PERIPH_CLK_UART_DIV_ENB;
else
val &= ~PERIPH_CLK_UART_DIV_ENB;
}
clk_writel_delay(val, c->reg);
c->div = divider + 2;
c->mul = 2;
return 0;
}
} else if (c->flags & DIV_U16) {
divider = clk_div16_get_divider(parent_rate, rate);
if (divider >= 0) {
val = clk_readl(c->reg);
val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK;
val |= divider;
clk_writel_delay(val, c->reg);
c->div = divider + 1;
c->mul = 1;
return 0;
}
} else if (parent_rate <= rate) {
c->div = 1;
c->mul = 1;
return 0;
}
return -EINVAL;
}
static long tegra30_periph_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_tegra *c = to_clk_tegra(hw);
unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk));
int divider;
if (prate)
parent_rate = *prate;
if (c->flags & DIV_U71) {
divider = clk_div71_get_divider(
parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
if (divider < 0)
return divider;
return DIV_ROUND_UP(parent_rate * 2, divider + 2);
} else if (c->flags & DIV_U16) {
divider = clk_div16_get_divider(parent_rate, rate);
if (divider < 0)
return divider;
return DIV_ROUND_UP(parent_rate, divider + 1);
}
return -EINVAL;
}
static unsigned long tegra30_periph_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
u32 val = clk_readl(c->reg);
if (c->flags & DIV_U71) {
u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK;
if ((c->flags & DIV_U71_UART) &&
(!(val & PERIPH_CLK_UART_DIV_ENB))) {
divu71 = 0;
}
if (c->flags & DIV_U71_IDLE) {
val &= ~(PERIPH_CLK_SOURCE_DIVU71_MASK <<
PERIPH_CLK_SOURCE_DIVIDLE_SHIFT);
val |= (PERIPH_CLK_SOURCE_DIVIDLE_VAL <<
PERIPH_CLK_SOURCE_DIVIDLE_SHIFT);
clk_writel(val, c->reg);
}
c->div = divu71 + 2;
c->mul = 2;
} else if (c->flags & DIV_U16) {
u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK;
c->div = divu16 + 1;
c->mul = 1;
} else {
c->div = 1;
c->mul = 1;
}
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
struct clk_ops tegra30_periph_clk_ops = {
.is_enabled = tegra30_periph_clk_is_enabled,
.enable = tegra30_periph_clk_enable,
.disable = tegra30_periph_clk_disable,
.set_parent = tegra30_periph_clk_set_parent,
.get_parent = tegra30_periph_clk_get_parent,
.set_rate = tegra30_periph_clk_set_rate,
.round_rate = tegra30_periph_clk_round_rate,
.recalc_rate = tegra30_periph_clk_recalc_rate,
};
static int tegra30_dsib_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk *d = clk_get_sys(NULL, "pll_d");
/* The DSIB parent selection bit is in PLLD base register */
tegra_clk_cfg_ex(
d, TEGRA_CLK_PLLD_MIPI_MUX_SEL, index);
return 0;
}
struct clk_ops tegra30_dsib_clk_ops = {
.is_enabled = tegra30_periph_clk_is_enabled,
.enable = &tegra30_periph_clk_enable,
.disable = &tegra30_periph_clk_disable,
.set_parent = &tegra30_dsib_clk_set_parent,
.get_parent = &tegra30_periph_clk_get_parent,
.set_rate = &tegra30_periph_clk_set_rate,
.round_rate = &tegra30_periph_clk_round_rate,
.recalc_rate = &tegra30_periph_clk_recalc_rate,
};
/* Periph extended clock configuration ops */
int tegra30_vi_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (p == TEGRA_CLK_VI_INP_SEL) {
u32 val = clk_readl(c->reg);
val &= ~PERIPH_CLK_VI_SEL_EX_MASK;
val |= (setting << PERIPH_CLK_VI_SEL_EX_SHIFT) &
PERIPH_CLK_VI_SEL_EX_MASK;
clk_writel(val, c->reg);
return 0;
}
return -EINVAL;
}
int tegra30_nand_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (p == TEGRA_CLK_NAND_PAD_DIV2_ENB) {
u32 val = clk_readl(c->reg);
if (setting)
val |= PERIPH_CLK_NAND_DIV_EX_ENB;
else
val &= ~PERIPH_CLK_NAND_DIV_EX_ENB;
clk_writel(val, c->reg);
return 0;
}
return -EINVAL;
}
int tegra30_dtv_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting)
{
struct clk_tegra *c = to_clk_tegra(hw);
if (p == TEGRA_CLK_DTV_INVERT) {
u32 val = clk_readl(c->reg);
if (setting)
val |= PERIPH_CLK_DTV_POLARITY_INV;
else
val &= ~PERIPH_CLK_DTV_POLARITY_INV;
clk_writel(val, c->reg);
return 0;
}
return -EINVAL;
}
/* Output clock ops */
static DEFINE_SPINLOCK(clk_out_lock);
static int tegra30_clk_out_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = pmc_readl(c->reg);
c->state = (val & (0x1 << c->u.periph.clk_num)) ? ON : OFF;
c->mul = 1;
c->div = 1;
return c->state;
}
static int tegra30_clk_out_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
unsigned long flags;
spin_lock_irqsave(&clk_out_lock, flags);
val = pmc_readl(c->reg);
val |= (0x1 << c->u.periph.clk_num);
pmc_writel(val, c->reg);
spin_unlock_irqrestore(&clk_out_lock, flags);
return 0;
}
static void tegra30_clk_out_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
unsigned long flags;
spin_lock_irqsave(&clk_out_lock, flags);
val = pmc_readl(c->reg);
val &= ~(0x1 << c->u.periph.clk_num);
pmc_writel(val, c->reg);
spin_unlock_irqrestore(&clk_out_lock, flags);
}
static int tegra30_clk_out_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
unsigned long flags;
spin_lock_irqsave(&clk_out_lock, flags);
val = pmc_readl(c->reg);
val &= ~periph_clk_source_mask(c);
val |= (index << periph_clk_source_shift(c));
pmc_writel(val, c->reg);
spin_unlock_irqrestore(&clk_out_lock, flags);
return 0;
}
static u8 tegra30_clk_out_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = pmc_readl(c->reg);
int source;
source = (val & periph_clk_source_mask(c)) >>
periph_clk_source_shift(c);
return source;
}
struct clk_ops tegra_clk_out_ops = {
.is_enabled = tegra30_clk_out_is_enabled,
.enable = tegra30_clk_out_enable,
.disable = tegra30_clk_out_disable,
.set_parent = tegra30_clk_out_set_parent,
.get_parent = tegra30_clk_out_get_parent,
.recalc_rate = tegra30_clk_fixed_recalc_rate,
};
/* Clock doubler ops */
static int tegra30_clk_double_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
c->state = ON;
if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c)))
c->state = OFF;
return c->state;
};
static int tegra30_clk_double_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
if (rate == parent_rate) {
val = clk_readl(c->reg) | (0x1 << c->reg_shift);
clk_writel(val, c->reg);
c->mul = 1;
c->div = 1;
return 0;
} else if (rate == 2 * parent_rate) {
val = clk_readl(c->reg) & (~(0x1 << c->reg_shift));
clk_writel(val, c->reg);
c->mul = 2;
c->div = 1;
return 0;
}
return -EINVAL;
}
static unsigned long tegra30_clk_double_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_tegra *c = to_clk_tegra(hw);
u64 rate = parent_rate;
u32 val = clk_readl(c->reg);
c->mul = val & (0x1 << c->reg_shift) ? 1 : 2;
c->div = 1;
if (c->mul != 0 && c->div != 0) {
rate *= c->mul;
rate += c->div - 1; /* round up */
do_div(rate, c->div);
}
return rate;
}
static long tegra30_clk_double_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
unsigned long output_rate = *prate;
do_div(output_rate, 2);
return output_rate;
}
struct clk_ops tegra30_clk_double_ops = {
.is_enabled = tegra30_clk_double_is_enabled,
.enable = tegra30_periph_clk_enable,
.disable = tegra30_periph_clk_disable,
.recalc_rate = tegra30_clk_double_recalc_rate,
.round_rate = tegra30_clk_double_round_rate,
.set_rate = tegra30_clk_double_set_rate,
};
/* Audio sync clock ops */
struct clk_ops tegra_sync_source_ops = {
.recalc_rate = tegra30_clk_fixed_recalc_rate,
};
static int tegra30_audio_sync_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
c->state = (val & AUDIO_SYNC_DISABLE_BIT) ? OFF : ON;
return c->state;
}
static int tegra30_audio_sync_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
clk_writel((val & (~AUDIO_SYNC_DISABLE_BIT)), c->reg);
return 0;
}
static void tegra30_audio_sync_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
clk_writel((val | AUDIO_SYNC_DISABLE_BIT), c->reg);
}
static int tegra30_audio_sync_clk_set_parent(struct clk_hw *hw, u8 index)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val;
val = clk_readl(c->reg);
val &= ~AUDIO_SYNC_SOURCE_MASK;
val |= index;
clk_writel(val, c->reg);
return 0;
}
static u8 tegra30_audio_sync_clk_get_parent(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
int source;
source = val & AUDIO_SYNC_SOURCE_MASK;
return source;
}
struct clk_ops tegra30_audio_sync_clk_ops = {
.is_enabled = tegra30_audio_sync_clk_is_enabled,
.enable = tegra30_audio_sync_clk_enable,
.disable = tegra30_audio_sync_clk_disable,
.set_parent = tegra30_audio_sync_clk_set_parent,
.get_parent = tegra30_audio_sync_clk_get_parent,
.recalc_rate = tegra30_clk_fixed_recalc_rate,
};
/* cml0 (pcie), and cml1 (sata) clock ops */
static int tegra30_cml_clk_is_enabled(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
c->state = val & (0x1 << c->u.periph.clk_num) ? ON : OFF;
return c->state;
}
static int tegra30_cml_clk_enable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
val |= (0x1 << c->u.periph.clk_num);
clk_writel(val, c->reg);
return 0;
}
static void tegra30_cml_clk_disable(struct clk_hw *hw)
{
struct clk_tegra *c = to_clk_tegra(hw);
u32 val = clk_readl(c->reg);
val &= ~(0x1 << c->u.periph.clk_num);
clk_writel(val, c->reg);
}
struct clk_ops tegra_cml_clk_ops = {
.is_enabled = tegra30_cml_clk_is_enabled,
.enable = tegra30_cml_clk_enable,
.disable = tegra30_cml_clk_disable,
.recalc_rate = tegra30_clk_fixed_recalc_rate,
};
struct clk_ops tegra_pciex_clk_ops = {
.recalc_rate = tegra30_clk_fixed_recalc_rate,
};
/* Tegra30 CPU clock and reset control functions */
static void tegra30_wait_cpu_in_reset(u32 cpu)
{
unsigned int reg;
do {
reg = readl(reg_clk_base +
TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS);
cpu_relax();
} while (!(reg & (1 << cpu))); /* check CPU been reset or not */
return;
}
static void tegra30_put_cpu_in_reset(u32 cpu)
{
writel(CPU_RESET(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET);
dmb();
}
static void tegra30_cpu_out_of_reset(u32 cpu)
{
writel(CPU_RESET(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR);
wmb();
}
static void tegra30_enable_cpu_clock(u32 cpu)
{
unsigned int reg;
writel(CPU_CLOCK(cpu),
reg_clk_base + TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR);
reg = readl(reg_clk_base +
TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR);
}
static void tegra30_disable_cpu_clock(u32 cpu)
{
unsigned int reg;
reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
writel(reg | CPU_CLOCK(cpu),
reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
}
#ifdef CONFIG_PM_SLEEP
static bool tegra30_cpu_rail_off_ready(void)
{
unsigned int cpu_rst_status;
int cpu_pwr_status;
cpu_rst_status = readl(reg_clk_base +
TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS);
cpu_pwr_status = tegra_powergate_is_powered(TEGRA_POWERGATE_CPU1) ||
tegra_powergate_is_powered(TEGRA_POWERGATE_CPU2) ||
tegra_powergate_is_powered(TEGRA_POWERGATE_CPU3);
if (((cpu_rst_status & 0xE) != 0xE) || cpu_pwr_status)
return false;
return true;
}
static void tegra30_cpu_clock_suspend(void)
{
/* switch coresite to clk_m, save off original source */
tegra30_cpu_clk_sctx.clk_csite_src =
readl(reg_clk_base + CLK_RESET_SOURCE_CSITE);
writel(3<<30, reg_clk_base + CLK_RESET_SOURCE_CSITE);
tegra30_cpu_clk_sctx.cpu_burst =
readl(reg_clk_base + CLK_RESET_CCLK_BURST);
tegra30_cpu_clk_sctx.pllx_base =
readl(reg_clk_base + CLK_RESET_PLLX_BASE);
tegra30_cpu_clk_sctx.pllx_misc =
readl(reg_clk_base + CLK_RESET_PLLX_MISC);
tegra30_cpu_clk_sctx.cclk_divider =
readl(reg_clk_base + CLK_RESET_CCLK_DIVIDER);
}
static void tegra30_cpu_clock_resume(void)
{
unsigned int reg, policy;
/* Is CPU complex already running on PLLX? */
reg = readl(reg_clk_base + CLK_RESET_CCLK_BURST);
policy = (reg >> CLK_RESET_CCLK_BURST_POLICY_SHIFT) & 0xF;
if (policy == CLK_RESET_CCLK_IDLE_POLICY)
reg = (reg >> CLK_RESET_CCLK_IDLE_POLICY_SHIFT) & 0xF;
else if (policy == CLK_RESET_CCLK_RUN_POLICY)
reg = (reg >> CLK_RESET_CCLK_RUN_POLICY_SHIFT) & 0xF;
else
BUG();
if (reg != CLK_RESET_CCLK_BURST_POLICY_PLLX) {
/* restore PLLX settings if CPU is on different PLL */
writel(tegra30_cpu_clk_sctx.pllx_misc,
reg_clk_base + CLK_RESET_PLLX_MISC);
writel(tegra30_cpu_clk_sctx.pllx_base,
reg_clk_base + CLK_RESET_PLLX_BASE);
/* wait for PLL stabilization if PLLX was enabled */
if (tegra30_cpu_clk_sctx.pllx_base & (1 << 30))
udelay(300);
}
/*
* Restore original burst policy setting for calls resulting from CPU
* LP2 in idle or system suspend.
*/
writel(tegra30_cpu_clk_sctx.cclk_divider,
reg_clk_base + CLK_RESET_CCLK_DIVIDER);
writel(tegra30_cpu_clk_sctx.cpu_burst,
reg_clk_base + CLK_RESET_CCLK_BURST);
writel(tegra30_cpu_clk_sctx.clk_csite_src,
reg_clk_base + CLK_RESET_SOURCE_CSITE);
}
#endif
static struct tegra_cpu_car_ops tegra30_cpu_car_ops = {
.wait_for_reset = tegra30_wait_cpu_in_reset,
.put_in_reset = tegra30_put_cpu_in_reset,
.out_of_reset = tegra30_cpu_out_of_reset,
.enable_clock = tegra30_enable_cpu_clock,
.disable_clock = tegra30_disable_cpu_clock,
#ifdef CONFIG_PM_SLEEP
.rail_off_ready = tegra30_cpu_rail_off_ready,
.suspend = tegra30_cpu_clock_suspend,
.resume = tegra30_cpu_clock_resume,
#endif
};
void __init tegra30_cpu_car_ops_init(void)
{
tegra_cpu_car_ops = &tegra30_cpu_car_ops;
}
arch/arm/mach-tegra/tegra30_clocks.h 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MACH_TEGRA30_CLOCK_H
#define __MACH_TEGRA30_CLOCK_H
extern struct clk_ops tegra30_clk_32k_ops;
extern struct clk_ops tegra30_clk_m_ops;
extern struct clk_ops tegra_clk_m_div_ops;
extern struct clk_ops tegra_pll_ref_ops;
extern struct clk_ops tegra30_pll_ops;
extern struct clk_ops tegra30_pll_div_ops;
extern struct clk_ops tegra_plld_ops;
extern struct clk_ops tegra30_plle_ops;
extern struct clk_ops tegra_cml_clk_ops;
extern struct clk_ops tegra_pciex_clk_ops;
extern struct clk_ops tegra_sync_source_ops;
extern struct clk_ops tegra30_audio_sync_clk_ops;
extern struct clk_ops tegra30_clk_double_ops;
extern struct clk_ops tegra_clk_out_ops;
extern struct clk_ops tegra30_super_ops;
extern struct clk_ops tegra30_blink_clk_ops;
extern struct clk_ops tegra30_twd_ops;
extern struct clk_ops tegra30_bus_ops;
extern struct clk_ops tegra30_periph_clk_ops;
extern struct clk_ops tegra30_dsib_clk_ops;
extern struct clk_ops tegra_nand_clk_ops;
extern struct clk_ops tegra_vi_clk_ops;
extern struct clk_ops tegra_dtv_clk_ops;
extern struct clk_ops tegra_clk_shared_bus_ops;
int tegra30_plld_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting);
void tegra30_periph_clk_reset(struct clk_hw *hw, bool assert);
int tegra30_vi_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting);
int tegra30_nand_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting);
int tegra30_dtv_clk_cfg_ex(struct clk_hw *hw,
enum tegra_clk_ex_param p, u32 setting);
#endif
arch/arm/mach-tegra/tegra30_clocks_data.c 已删除 100644 → 0
浏览文件 @ 61fd290d
/*
* arch/arm/mach-tegra/tegra30_clocks.c
*
* Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <linux/clk-private.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/clk/tegra.h>
#include "clock.h"
#include "fuse.h"
#include "tegra30_clocks.h"
#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \
_parent_names, _parents, _parent) \
static struct clk tegra_##_name = { \
.hw = &tegra_##_name##_hw.hw, \
.name = #_name, \
.rate = _rate, \
.ops = _ops, \
.flags = _flags, \
.parent_names = _parent_names, \
.parents = _parents, \
.num_parents = ARRAY_SIZE(_parent_names), \
.parent = _parent, \
};
static struct clk tegra_clk_32k;
static struct clk_tegra tegra_clk_32k_hw = {
.hw = {
.clk = &tegra_clk_32k,
},
.fixed_rate = 32768,
};
static struct clk tegra_clk_32k = {
.name = "clk_32k",
.hw = &tegra_clk_32k_hw.hw,
.ops = &tegra30_clk_32k_ops,
.flags = CLK_IS_ROOT,
};
static struct clk tegra_clk_m;
static struct clk_tegra tegra_clk_m_hw = {
.hw = {
.clk = &tegra_clk_m,
},
.flags = ENABLE_ON_INIT,
.reg = 0x1fc,
.reg_shift = 28,
.max_rate = 48000000,
};
static struct clk tegra_clk_m = {
.name = "clk_m",
.hw = &tegra_clk_m_hw.hw,
.ops = &tegra30_clk_m_ops,
.flags = CLK_IS_ROOT | CLK_IGNORE_UNUSED,
};
static const char *clk_m_div_parent_names[] = {
"clk_m",
};
static struct clk *clk_m_div_parents[] = {
&tegra_clk_m,
};
static struct clk tegra_clk_m_div2;
static struct clk_tegra tegra_clk_m_div2_hw = {
.hw = {
.clk = &tegra_clk_m_div2,
},
.mul = 1,
.div = 2,
.max_rate = 24000000,
};
DEFINE_CLK_TEGRA(clk_m_div2, 0, &tegra_clk_m_div_ops, 0,
clk_m_div_parent_names, clk_m_div_parents, &tegra_clk_m);
static struct clk tegra_clk_m_div4;
static struct clk_tegra tegra_clk_m_div4_hw = {
.hw = {
.clk = &tegra_clk_m_div4,
},
.mul = 1,
.div = 4,
.max_rate = 12000000,
};
DEFINE_CLK_TEGRA(clk_m_div4, 0, &tegra_clk_m_div_ops, 0,
clk_m_div_parent_names, clk_m_div_parents, &tegra_clk_m);
static struct clk tegra_pll_ref;
static struct clk_tegra tegra_pll_ref_hw = {
.hw = {
.clk = &tegra_pll_ref,
},
.flags = ENABLE_ON_INIT,
.max_rate = 26000000,
};
DEFINE_CLK_TEGRA(pll_ref, 0, &tegra_pll_ref_ops, 0, clk_m_div_parent_names,
clk_m_div_parents, &tegra_clk_m);
#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \
_input_max, _cf_min, _cf_max, _vco_min, \
_vco_max, _freq_table, _lock_delay, _ops, \
_fixed_rate, _clk_cfg_ex, _parent) \
static struct clk tegra_##_name; \
static const char *_name##_parent_names[] = { \
#_parent, \
}; \
static struct clk *_name##_parents[] = { \
&tegra_##_parent, \
}; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.flags = _flags, \
.reg = _reg, \
.max_rate = _max_rate, \
.u.pll = { \
.input_min = _input_min, \
.input_max = _input_max, \
.cf_min = _cf_min, \
.cf_max = _cf_max, \
.vco_min = _vco_min, \
.vco_max = _vco_max, \
.freq_table = _freq_table, \
.lock_delay = _lock_delay, \
.fixed_rate = _fixed_rate, \
}, \
.clk_cfg_ex = _clk_cfg_ex, \
}; \
DEFINE_CLK_TEGRA(_name, 0, &_ops, CLK_IGNORE_UNUSED, \
_name##_parent_names, _name##_parents, \
&tegra_##_parent);
#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \
_max_rate, _ops, _parent, _clk_flags) \
static const char *_name##_parent_names[] = { \
#_parent, \
}; \
static struct clk *_name##_parents[] = { \
&tegra_##_parent, \
}; \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.flags = _flags, \
.reg = _reg, \
.max_rate = _max_rate, \
.reg_shift = _reg_shift, \
}; \
DEFINE_CLK_TEGRA(_name, 0, &tegra30_pll_div_ops, \
_clk_flags, _name##_parent_names, \
_name##_parents, &tegra_##_parent);
static struct clk_pll_freq_table tegra_pll_c_freq_table[] = {
{ 12000000, 1040000000, 520, 6, 1, 8},
{ 13000000, 1040000000, 480, 6, 1, 8},
{ 16800000, 1040000000, 495, 8, 1, 8}, /* actual: 1039.5 MHz */
{ 19200000, 1040000000, 325, 6, 1, 6},
{ 26000000, 1040000000, 520, 13, 1, 8},
{ 12000000, 832000000, 416, 6, 1, 8},
{ 13000000, 832000000, 832, 13, 1, 8},
{ 16800000, 832000000, 396, 8, 1, 8}, /* actual: 831.6 MHz */
{ 19200000, 832000000, 260, 6, 1, 8},
{ 26000000, 832000000, 416, 13, 1, 8},
{ 12000000, 624000000, 624, 12, 1, 8},
{ 13000000, 624000000, 624, 13, 1, 8},
{ 16800000, 600000000, 520, 14, 1, 8},
{ 19200000, 624000000, 520, 16, 1, 8},
{ 26000000, 624000000, 624, 26, 1, 8},
{ 12000000, 600000000, 600, 12, 1, 8},
{ 13000000, 600000000, 600, 13, 1, 8},
{ 16800000, 600000000, 500, 14, 1, 8},
{ 19200000, 600000000, 375, 12, 1, 6},
{ 26000000, 600000000, 600, 26, 1, 8},
{ 12000000, 520000000, 520, 12, 1, 8},
{ 13000000, 520000000, 520, 13, 1, 8},
{ 16800000, 520000000, 495, 16, 1, 8}, /* actual: 519.75 MHz */
{ 19200000, 520000000, 325, 12, 1, 6},
{ 26000000, 520000000, 520, 26, 1, 8},
{ 12000000, 416000000, 416, 12, 1, 8},
{ 13000000, 416000000, 416, 13, 1, 8},
{ 16800000, 416000000, 396, 16, 1, 8}, /* actual: 415.8 MHz */
{ 19200000, 416000000, 260, 12, 1, 6},
{ 26000000, 416000000, 416, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 1400000000, 2000000, 31000000, 1000000,
6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300,
tegra30_pll_ops, 0, NULL, pll_ref);
DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 700000000,
tegra30_pll_div_ops, pll_c, CLK_IGNORE_UNUSED);
static struct clk_pll_freq_table tegra_pll_m_freq_table[] = {
{ 12000000, 666000000, 666, 12, 1, 8},
{ 13000000, 666000000, 666, 13, 1, 8},
{ 16800000, 666000000, 555, 14, 1, 8},
{ 19200000, 666000000, 555, 16, 1, 8},
{ 26000000, 666000000, 666, 26, 1, 8},
{ 12000000, 600000000, 600, 12, 1, 8},
{ 13000000, 600000000, 600, 13, 1, 8},
{ 16800000, 600000000, 500, 14, 1, 8},
{ 19200000, 600000000, 375, 12, 1, 6},
{ 26000000, 600000000, 600, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_m, PLL_HAS_CPCON | PLLM, 0x90, 800000000, 2000000, 31000000,
1000000, 6000000, 20000000, 1200000000, tegra_pll_m_freq_table,
300, tegra30_pll_ops, 0, NULL, pll_ref);
DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000,
tegra30_pll_div_ops, pll_m, CLK_IGNORE_UNUSED);
static struct clk_pll_freq_table tegra_pll_p_freq_table[] = {
{ 12000000, 216000000, 432, 12, 2, 8},
{ 13000000, 216000000, 432, 13, 2, 8},
{ 16800000, 216000000, 360, 14, 2, 8},
{ 19200000, 216000000, 360, 16, 2, 8},
{ 26000000, 216000000, 432, 26, 2, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000,
2000000, 31000000, 1000000, 6000000, 20000000, 1400000000,
tegra_pll_p_freq_table, 300, tegra30_pll_ops, 408000000, NULL,
pll_ref);
DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4,
0, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED);
DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4,
16, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED);
DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8,
0, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED);
DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8,
16, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED);
static struct clk_pll_freq_table tegra_pll_a_freq_table[] = {
{ 9600000, 564480000, 294, 5, 1, 4},
{ 9600000, 552960000, 288, 5, 1, 4},
{ 9600000, 24000000, 5, 2, 1, 1},
{ 28800000, 56448000, 49, 25, 1, 1},
{ 28800000, 73728000, 64, 25, 1, 1},
{ 28800000, 24000000, 5, 6, 1, 1},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 700000000, 2000000, 31000000, 1000000,
6000000, 20000000, 1400000000, tegra_pll_a_freq_table,
300, tegra30_pll_ops, 0, NULL, pll_p_out1);
DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 100000000, tegra30_pll_div_ops,
pll_a, CLK_IGNORE_UNUSED);
static struct clk_pll_freq_table tegra_pll_d_freq_table[] = {
{ 12000000, 216000000, 216, 12, 1, 4},
{ 13000000, 216000000, 216, 13, 1, 4},
{ 16800000, 216000000, 180, 14, 1, 4},
{ 19200000, 216000000, 180, 16, 1, 4},
{ 26000000, 216000000, 216, 26, 1, 4},
{ 12000000, 594000000, 594, 12, 1, 8},
{ 13000000, 594000000, 594, 13, 1, 8},
{ 16800000, 594000000, 495, 14, 1, 8},
{ 19200000, 594000000, 495, 16, 1, 8},
{ 26000000, 594000000, 594, 26, 1, 8},
{ 12000000, 1000000000, 1000, 12, 1, 12},
{ 13000000, 1000000000, 1000, 13, 1, 12},
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 12},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000,
1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table,
1000, tegra30_pll_ops, 0, tegra30_plld_clk_cfg_ex, pll_ref);
DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000, tegra30_pll_div_ops,
pll_d, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED);
DEFINE_PLL(pll_d2, PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLD, 0x4b8, 1000000000,
2000000, 40000000, 1000000, 6000000, 40000000, 1000000000,
tegra_pll_d_freq_table, 1000, tegra30_pll_ops, 0, NULL,
pll_ref);
DEFINE_PLL_OUT(pll_d2_out0, DIV_2 | PLLD, 0, 0, 500000000, tegra30_pll_div_ops,
pll_d2, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED);
static struct clk_pll_freq_table tegra_pll_u_freq_table[] = {
{ 12000000, 480000000, 960, 12, 2, 12},
{ 13000000, 480000000, 960, 13, 2, 12},
{ 16800000, 480000000, 400, 7, 2, 5},
{ 19200000, 480000000, 200, 4, 2, 3},
{ 26000000, 480000000, 960, 26, 2, 12},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_u, PLL_HAS_CPCON | PLLU, 0xc0, 480000000, 2000000, 40000000,
1000000, 6000000, 48000000, 960000000, tegra_pll_u_freq_table,
1000, tegra30_pll_ops, 0, NULL, pll_ref);
static struct clk_pll_freq_table tegra_pll_x_freq_table[] = {
/* 1.7 GHz */
{ 12000000, 1700000000, 850, 6, 1, 8},
{ 13000000, 1700000000, 915, 7, 1, 8}, /* actual: 1699.2 MHz */
{ 16800000, 1700000000, 708, 7, 1, 8}, /* actual: 1699.2 MHz */
{ 19200000, 1700000000, 885, 10, 1, 8}, /* actual: 1699.2 MHz */
{ 26000000, 1700000000, 850, 13, 1, 8},
/* 1.6 GHz */
{ 12000000, 1600000000, 800, 6, 1, 8},
{ 13000000, 1600000000, 738, 6, 1, 8}, /* actual: 1599.0 MHz */
{ 16800000, 1600000000, 857, 9, 1, 8}, /* actual: 1599.7 MHz */
{ 19200000, 1600000000, 500, 6, 1, 8},
{ 26000000, 1600000000, 800, 13, 1, 8},
/* 1.5 GHz */
{ 12000000, 1500000000, 750, 6, 1, 8},
{ 13000000, 1500000000, 923, 8, 1, 8}, /* actual: 1499.8 MHz */
{ 16800000, 1500000000, 625, 7, 1, 8},
{ 19200000, 1500000000, 625, 8, 1, 8},
{ 26000000, 1500000000, 750, 13, 1, 8},
/* 1.4 GHz */
{ 12000000, 1400000000, 700, 6, 1, 8},
{ 13000000, 1400000000, 969, 9, 1, 8}, /* actual: 1399.7 MHz */
{ 16800000, 1400000000, 1000, 12, 1, 8},
{ 19200000, 1400000000, 875, 12, 1, 8},
{ 26000000, 1400000000, 700, 13, 1, 8},
/* 1.3 GHz */
{ 12000000, 1300000000, 975, 9, 1, 8},
{ 13000000, 1300000000, 1000, 10, 1, 8},
{ 16800000, 1300000000, 928, 12, 1, 8}, /* actual: 1299.2 MHz */
{ 19200000, 1300000000, 812, 12, 1, 8}, /* actual: 1299.2 MHz */
{ 26000000, 1300000000, 650, 13, 1, 8},
/* 1.2 GHz */
{ 12000000, 1200000000, 1000, 10, 1, 8},
{ 13000000, 1200000000, 923, 10, 1, 8}, /* actual: 1199.9 MHz */
{ 16800000, 1200000000, 1000, 14, 1, 8},
{ 19200000, 1200000000, 1000, 16, 1, 8},
{ 26000000, 1200000000, 600, 13, 1, 8},
/* 1.1 GHz */
{ 12000000, 1100000000, 825, 9, 1, 8},
{ 13000000, 1100000000, 846, 10, 1, 8}, /* actual: 1099.8 MHz */
{ 16800000, 1100000000, 982, 15, 1, 8}, /* actual: 1099.8 MHz */
{ 19200000, 1100000000, 859, 15, 1, 8}, /* actual: 1099.5 MHz */
{ 26000000, 1100000000, 550, 13, 1, 8},
/* 1 GHz */
{ 12000000, 1000000000, 1000, 12, 1, 8},
{ 13000000, 1000000000, 1000, 13, 1, 8},
{ 16800000, 1000000000, 833, 14, 1, 8}, /* actual: 999.6 MHz */
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLX, 0xe0, 1700000000,
2000000, 31000000, 1000000, 6000000, 20000000, 1700000000,
tegra_pll_x_freq_table, 300, tegra30_pll_ops, 0, NULL, pll_ref);
DEFINE_PLL_OUT(pll_x_out0, DIV_2 | PLLX, 0, 0, 850000000, tegra30_pll_div_ops,
pll_x, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED);
static struct clk_pll_freq_table tegra_pll_e_freq_table[] = {
/* PLLE special case: use cpcon field to store cml divider value */
{ 12000000, 100000000, 150, 1, 18, 11},
{ 216000000, 100000000, 200, 18, 24, 13},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 2000000, 216000000,
12000000, 12000000, 1200000000, 2400000000U,
tegra_pll_e_freq_table, 300, tegra30_plle_ops, 100000000, NULL,
pll_ref);
static const char *mux_plle[] = {
"pll_e",
};
static struct clk *mux_plle_p[] = {
&tegra_pll_e,
};
static struct clk tegra_cml0;
static struct clk_tegra tegra_cml0_hw = {
.hw = {
.clk = &tegra_cml0,
},
.reg = 0x48c,
.fixed_rate = 100000000,
.u.periph = {
.clk_num = 0,
},
};
DEFINE_CLK_TEGRA(cml0, 0, &tegra_cml_clk_ops, 0, mux_plle,
mux_plle_p, &tegra_pll_e);
static struct clk tegra_cml1;
static struct clk_tegra tegra_cml1_hw = {
.hw = {
.clk = &tegra_cml1,
},
.reg = 0x48c,
.fixed_rate = 100000000,
.u.periph = {
.clk_num = 1,
},
};
DEFINE_CLK_TEGRA(cml1, 0, &tegra_cml_clk_ops, 0, mux_plle,
mux_plle_p, &tegra_pll_e);
static struct clk tegra_pciex;
static struct clk_tegra tegra_pciex_hw = {
.hw = {
.clk = &tegra_pciex,
},
.reg = 0x48c,
.fixed_rate = 100000000,
.reset = tegra30_periph_clk_reset,
.u.periph = {
.clk_num = 74,
},
};
DEFINE_CLK_TEGRA(pciex, 0, &tegra_pciex_clk_ops, 0, mux_plle,
mux_plle_p, &tegra_pll_e);
#define SYNC_SOURCE(_name) \
static struct clk tegra_##_name##_sync; \
static struct clk_tegra tegra_##_name##_sync_hw = { \
.hw = { \
.clk = &tegra_##_name##_sync, \
}, \
.max_rate = 24000000, \
.fixed_rate = 24000000, \
}; \
static struct clk tegra_##_name##_sync = { \
.name = #_name "_sync", \
.hw = &tegra_##_name##_sync_hw.hw, \
.ops = &tegra_sync_source_ops, \
.flags = CLK_IS_ROOT, \
};
SYNC_SOURCE(spdif_in);
SYNC_SOURCE(i2s0);
SYNC_SOURCE(i2s1);
SYNC_SOURCE(i2s2);
SYNC_SOURCE(i2s3);
SYNC_SOURCE(i2s4);
SYNC_SOURCE(vimclk);
static struct clk *tegra_sync_source_list[] = {
&tegra_spdif_in_sync,
&tegra_i2s0_sync,
&tegra_i2s1_sync,
&tegra_i2s2_sync,
&tegra_i2s3_sync,
&tegra_i2s4_sync,
&tegra_vimclk_sync,
};
static const char *mux_audio_sync_clk[] = {
"spdif_in_sync",
"i2s0_sync",
"i2s1_sync",
"i2s2_sync",
"i2s3_sync",
"i2s4_sync",
"vimclk_sync",
};
#define AUDIO_SYNC_CLK(_name, _index) \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.max_rate = 24000000, \
.reg = 0x4A0 + (_index) * 4, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra30_audio_sync_clk_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent_names = mux_audio_sync_clk, \
.parents = tegra_sync_source_list, \
.num_parents = ARRAY_SIZE(mux_audio_sync_clk), \
};
AUDIO_SYNC_CLK(audio0, 0);
AUDIO_SYNC_CLK(audio1, 1);
AUDIO_SYNC_CLK(audio2, 2);
AUDIO_SYNC_CLK(audio3, 3);
AUDIO_SYNC_CLK(audio4, 4);
AUDIO_SYNC_CLK(audio5, 5);
static struct clk *tegra_clk_audio_list[] = {
&tegra_audio0,
&tegra_audio1,
&tegra_audio2,
&tegra_audio3,
&tegra_audio4,
&tegra_audio5, /* SPDIF */
};
#define AUDIO_SYNC_2X_CLK(_name, _index) \
static const char *_name##_parent_names[] = { \
"tegra_" #_name, \
}; \
static struct clk *_name##_parents[] = { \
&tegra_##_name, \
}; \
static struct clk tegra_##_name##_2x; \
static struct clk_tegra tegra_##_name##_2x_hw = { \
.hw = { \
.clk = &tegra_##_name##_2x, \
}, \
.flags = PERIPH_NO_RESET, \
.max_rate = 48000000, \
.reg = 0x49C, \
.reg_shift = 24 + (_index), \
.u.periph = { \
.clk_num = 113 + (_index), \
}, \
}; \
static struct clk tegra_##_name##_2x = { \
.name = #_name "_2x", \
.ops = &tegra30_clk_double_ops, \
.hw = &tegra_##_name##_2x_hw.hw, \
.parent_names = _name##_parent_names, \
.parents = _name##_parents, \
.parent = &tegra_##_name, \
.num_parents = 1, \
};
AUDIO_SYNC_2X_CLK(audio0, 0);
AUDIO_SYNC_2X_CLK(audio1, 1);
AUDIO_SYNC_2X_CLK(audio2, 2);
AUDIO_SYNC_2X_CLK(audio3, 3);
AUDIO_SYNC_2X_CLK(audio4, 4);
AUDIO_SYNC_2X_CLK(audio5, 5); /* SPDIF */
static struct clk *tegra_clk_audio_2x_list[] = {
&tegra_audio0_2x,
&tegra_audio1_2x,
&tegra_audio2_2x,
&tegra_audio3_2x,
&tegra_audio4_2x,
&tegra_audio5_2x, /* SPDIF */
};
#define MUX_I2S_SPDIF(_id) \
static const char *mux_pllaout0_##_id##_2x_pllp_clkm[] = { \
"pll_a_out0", \
#_id "_2x", \
"pll_p", \
"clk_m", \
}; \
static struct clk *mux_pllaout0_##_id##_2x_pllp_clkm_p[] = { \
&tegra_pll_a_out0, \
&tegra_##_id##_2x, \
&tegra_pll_p, \
&tegra_clk_m, \
};
MUX_I2S_SPDIF(audio0);
MUX_I2S_SPDIF(audio1);
MUX_I2S_SPDIF(audio2);
MUX_I2S_SPDIF(audio3);
MUX_I2S_SPDIF(audio4);
MUX_I2S_SPDIF(audio5); /* SPDIF */
static struct clk tegra_extern1;
static struct clk tegra_extern2;
static struct clk tegra_extern3;
/* External clock outputs (through PMC) */
#define MUX_EXTERN_OUT(_id) \
static const char *mux_clkm_clkm2_clkm4_extern##_id[] = { \
"clk_m", \
"clk_m_div2", \
"clk_m_div4", \
"extern" #_id, \
}; \
static struct clk *mux_clkm_clkm2_clkm4_extern##_id##_p[] = { \
&tegra_clk_m, \
&tegra_clk_m_div2, \
&tegra_clk_m_div4, \
&tegra_extern##_id, \
};
MUX_EXTERN_OUT(1);
MUX_EXTERN_OUT(2);
MUX_EXTERN_OUT(3);
#define CLK_OUT_CLK(_name, _index) \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.lookup = { \
.dev_id = #_name, \
.con_id = "extern" #_index, \
}, \
.flags = MUX_CLK_OUT, \
.fixed_rate = 216000000, \
.reg = 0x1a8, \
.u.periph = { \
.clk_num = (_index - 1) * 8 + 2, \
}, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra_clk_out_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent_names = mux_clkm_clkm2_clkm4_extern##_index, \
.parents = mux_clkm_clkm2_clkm4_extern##_index##_p, \
.num_parents = ARRAY_SIZE(mux_clkm_clkm2_clkm4_extern##_index),\
};
CLK_OUT_CLK(clk_out_1, 1);
CLK_OUT_CLK(clk_out_2, 2);
CLK_OUT_CLK(clk_out_3, 3);
static struct clk *tegra_clk_out_list[] = {
&tegra_clk_out_1,
&tegra_clk_out_2,
&tegra_clk_out_3,
};
static const char *mux_sclk[] = {
"clk_m",
"pll_c_out1",
"pll_p_out4",
"pll_p_out3",
"pll_p_out2",
"dummy",
"clk_32k",
"pll_m_out1",
};
static struct clk *mux_sclk_p[] = {
&tegra_clk_m,
&tegra_pll_c_out1,
&tegra_pll_p_out4,
&tegra_pll_p_out3,
&tegra_pll_p_out2,
NULL,
&tegra_clk_32k,
&tegra_pll_m_out1,
};
static struct clk tegra_clk_sclk;
static struct clk_tegra tegra_clk_sclk_hw = {
.hw = {
.clk = &tegra_clk_sclk,
},
.reg = 0x28,
.max_rate = 334000000,
.min_rate = 40000000,
};
static struct clk tegra_clk_sclk = {
.name = "sclk",
.ops = &tegra30_super_ops,
.hw = &tegra_clk_sclk_hw.hw,
.parent_names = mux_sclk,
.parents = mux_sclk_p,
.num_parents = ARRAY_SIZE(mux_sclk),
};
static const char *tegra_hclk_parent_names[] = {
"tegra_sclk",
};
static struct clk *tegra_hclk_parents[] = {
&tegra_clk_sclk,
};
static struct clk tegra_hclk;
static struct clk_tegra tegra_hclk_hw = {
.hw = {
.clk = &tegra_hclk,
},
.flags = DIV_BUS,
.reg = 0x30,
.reg_shift = 4,
.max_rate = 378000000,
.min_rate = 12000000,
};
DEFINE_CLK_TEGRA(hclk, 0, &tegra30_bus_ops, 0, tegra_hclk_parent_names,
tegra_hclk_parents, &tegra_clk_sclk);
static const char *tegra_pclk_parent_names[] = {
"tegra_hclk",
};
static struct clk *tegra_pclk_parents[] = {
&tegra_hclk,
};
static struct clk tegra_pclk;
static struct clk_tegra tegra_pclk_hw = {
.hw = {
.clk = &tegra_pclk,
},
.flags = DIV_BUS,
.reg = 0x30,
.reg_shift = 0,
.max_rate = 167000000,
.min_rate = 12000000,
};
DEFINE_CLK_TEGRA(pclk, 0, &tegra30_bus_ops, 0, tegra_pclk_parent_names,
tegra_pclk_parents, &tegra_hclk);
static const char *mux_blink[] = {
"clk_32k",
};
static struct clk *mux_blink_p[] = {
&tegra_clk_32k,
};
static struct clk tegra_clk_blink;
static struct clk_tegra tegra_clk_blink_hw = {
.hw = {
.clk = &tegra_clk_blink,
},
.reg = 0x40,
.max_rate = 32768,
};
static struct clk tegra_clk_blink = {
.name = "blink",
.ops = &tegra30_blink_clk_ops,
.hw = &tegra_clk_blink_hw.hw,
.parent = &tegra_clk_32k,
.parent_names = mux_blink,
.parents = mux_blink_p,
.num_parents = ARRAY_SIZE(mux_blink),
};
static const char *mux_pllm_pllc_pllp_plla[] = {
"pll_m",
"pll_c",
"pll_p",
"pll_a_out0",
};
static const char *mux_pllp_pllc_pllm_clkm[] = {
"pll_p",
"pll_c",
"pll_m",
"clk_m",
};
static const char *mux_pllp_clkm[] = {
"pll_p",
"dummy",
"dummy",
"clk_m",
};
static const char *mux_pllp_plld_pllc_clkm[] = {
"pll_p",
"pll_d_out0",
"pll_c",
"clk_m",
};
static const char *mux_pllp_pllm_plld_plla_pllc_plld2_clkm[] = {
"pll_p",
"pll_m",
"pll_d_out0",
"pll_a_out0",
"pll_c",
"pll_d2_out0",
"clk_m",
};
static const char *mux_plla_pllc_pllp_clkm[] = {
"pll_a_out0",
"dummy",
"pll_p",
"clk_m"
};
static const char *mux_pllp_pllc_clk32_clkm[] = {
"pll_p",
"pll_c",
"clk_32k",
"clk_m",
};
static const char *mux_pllp_pllc_clkm_clk32[] = {
"pll_p",
"pll_c",
"clk_m",
"clk_32k",
};
static const char *mux_pllp_pllc_pllm[] = {
"pll_p",
"pll_c",
"pll_m",
};
static const char *mux_clk_m[] = {
"clk_m",
};
static const char *mux_pllp_out3[] = {
"pll_p_out3",
};
static const char *mux_plld_out0[] = {
"pll_d_out0",
};
static const char *mux_plld_out0_plld2_out0[] = {
"pll_d_out0",
"pll_d2_out0",
};
static const char *mux_clk_32k[] = {
"clk_32k",
};
static const char *mux_plla_clk32_pllp_clkm_plle[] = {
"pll_a_out0",
"clk_32k",
"pll_p",
"clk_m",
"pll_e",
};
static const char *mux_cclk_g[] = {
"clk_m",
"pll_c",
"clk_32k",
"pll_m",
"pll_p",
"pll_p_out4",
"pll_p_out3",
"dummy",
"pll_x",
};
static struct clk *mux_pllm_pllc_pllp_plla_p[] = {
&tegra_pll_m,
&tegra_pll_c,
&tegra_pll_p,
&tegra_pll_a_out0,
};
static struct clk *mux_pllp_pllc_pllm_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_pll_m,
&tegra_clk_m,
};
static struct clk *mux_pllp_clkm_p[] = {
&tegra_pll_p,
NULL,
NULL,
&tegra_clk_m,
};
static struct clk *mux_pllp_plld_pllc_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_d_out0,
&tegra_pll_c,
&tegra_clk_m,
};
static struct clk *mux_pllp_pllm_plld_plla_pllc_plld2_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_m,
&tegra_pll_d_out0,
&tegra_pll_a_out0,
&tegra_pll_c,
&tegra_pll_d2_out0,
&tegra_clk_m,
};
static struct clk *mux_plla_pllc_pllp_clkm_p[] = {
&tegra_pll_a_out0,
NULL,
&tegra_pll_p,
&tegra_clk_m,
};
static struct clk *mux_pllp_pllc_clk32_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_clk_32k,
&tegra_clk_m,
};
static struct clk *mux_pllp_pllc_clkm_clk32_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_clk_m,
&tegra_clk_32k,
};
static struct clk *mux_pllp_pllc_pllm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_pll_m,
};
static struct clk *mux_clk_m_p[] = {
&tegra_clk_m,
};
static struct clk *mux_pllp_out3_p[] = {
&tegra_pll_p_out3,
};
static struct clk *mux_plld_out0_p[] = {
&tegra_pll_d_out0,
};
static struct clk *mux_plld_out0_plld2_out0_p[] = {
&tegra_pll_d_out0,
&tegra_pll_d2_out0,
};
static struct clk *mux_clk_32k_p[] = {
&tegra_clk_32k,
};
static struct clk *mux_plla_clk32_pllp_clkm_plle_p[] = {
&tegra_pll_a_out0,
&tegra_clk_32k,
&tegra_pll_p,
&tegra_clk_m,
&tegra_pll_e,
};
static struct clk *mux_cclk_g_p[] = {
&tegra_clk_m,
&tegra_pll_c,
&tegra_clk_32k,
&tegra_pll_m,
&tegra_pll_p,
&tegra_pll_p_out4,
&tegra_pll_p_out3,
NULL,
&tegra_pll_x,
};
static struct clk tegra_clk_cclk_g;
static struct clk_tegra tegra_clk_cclk_g_hw = {
.hw = {
.clk = &tegra_clk_cclk_g,
},
.flags = DIV_U71 | DIV_U71_INT,
.reg = 0x368,
.max_rate = 1700000000,
};
static struct clk tegra_clk_cclk_g = {
.name = "cclk_g",
.ops = &tegra30_super_ops,
.hw = &tegra_clk_cclk_g_hw.hw,
.parent_names = mux_cclk_g,
.parents = mux_cclk_g_p,
.num_parents = ARRAY_SIZE(mux_cclk_g),
};
static const char *mux_twd[] = {
"cclk_g",
};
static struct clk *mux_twd_p[] = {
&tegra_clk_cclk_g,
};
static struct clk tegra30_clk_twd;
static struct clk_tegra tegra30_clk_twd_hw = {
.hw = {
.clk = &tegra30_clk_twd,
},
.max_rate = 1400000000,
.mul = 1,
.div = 2,
};
static struct clk tegra30_clk_twd = {
.name = "twd",
.ops = &tegra30_twd_ops,
.hw = &tegra30_clk_twd_hw.hw,
.parent = &tegra_clk_cclk_g,
.parent_names = mux_twd,
.parents = mux_twd_p,
.num_parents = ARRAY_SIZE(mux_twd),
};
#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \
_max, _inputs, _flags) \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.lookup = { \
.dev_id = _dev, \
.con_id = _con, \
}, \
.reg = _reg, \
.flags = _flags, \
.max_rate = _max, \
.u.periph = { \
.clk_num = _clk_num, \
}, \
.reset = &tegra30_periph_clk_reset, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra30_periph_clk_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent_names = _inputs, \
.parents = _inputs##_p, \
.num_parents = ARRAY_SIZE(_inputs), \
};
PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 26000000, mux_clk_m, 0);
PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB);
PERIPH_CLK(kbc, "tegra-kbc", NULL, 36, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB);
PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0);
PERIPH_CLK(kfuse, "kfuse-tegra", NULL, 40, 0, 26000000, mux_clk_m, 0);
PERIPH_CLK(fuse, "fuse-tegra", "fuse", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB);
PERIPH_CLK(fuse_burn, "fuse-tegra", "fuse_burn", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB);
PERIPH_CLK(apbif, "tegra30-ahub", "apbif", 107, 0, 26000000, mux_clk_m, 0);
PERIPH_CLK(i2s0, "tegra30-i2s.0", NULL, 30, 0x1d8, 26000000, mux_pllaout0_audio0_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(i2s1, "tegra30-i2s.1", NULL, 11, 0x100, 26000000, mux_pllaout0_audio1_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(i2s2, "tegra30-i2s.2", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(i2s3, "tegra30-i2s.3", NULL, 101, 0x3bc, 26000000, mux_pllaout0_audio3_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(i2s4, "tegra30-i2s.4", NULL, 102, 0x3c0, 26000000, mux_pllaout0_audio4_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(spdif_out, "tegra30-spdif", "spdif_out", 10, 0x108, 100000000, mux_pllaout0_audio5_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(spdif_in, "tegra30-spdif", "spdif_in", 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_clk32_clkm, MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(d_audio, "tegra30-ahub", "d_audio", 106, 0x3d0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(dam0, "tegra30-dam.0", NULL, 108, 0x3d8, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(dam1, "tegra30-dam.1", NULL, 109, 0x3dc, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(dam2, "tegra30-dam.2", NULL, 110, 0x3e0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(hda, "tegra30-hda", "hda", 125, 0x428, 108000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(hda2codec_2x, "tegra30-hda", "hda2codec", 111, 0x3e4, 48000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(hda2hdmi, "tegra30-hda", "hda2hdmi", 128, 0, 48000000, mux_clk_m, 0);
PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sbc5, "spi_tegra.4", NULL, 104, 0x3c8, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sbc6, "spi_tegra.5", NULL, 105, 0x3cc, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sata_oob, "tegra_sata_oob", NULL, 123, 0x420, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sata, "tegra_sata", NULL, 124, 0x424, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sata_cold, "tegra_sata_cold", NULL, 129, 0, 48000000, mux_clk_m, 0);
PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(ndspeed, "tegra_nand_speed", NULL, 80, 0x3f8, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(vde, "vde", NULL, 61, 0x1c8, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT);
PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */
PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 127000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); /* scales with voltage */
PERIPH_CLK(i2c1, "tegra-i2c.0", "div-clk", 12, 0x124, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB);
PERIPH_CLK(i2c2, "tegra-i2c.1", "div-clk", 54, 0x198, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB);
PERIPH_CLK(i2c3, "tegra-i2c.2", "div-clk", 67, 0x1b8, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB);
PERIPH_CLK(i2c4, "tegra-i2c.3", "div-clk", 103, 0x3c4, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB);
PERIPH_CLK(i2c5, "tegra-i2c.4", "div-clk", 47, 0x128, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB);
PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB);
PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB);
PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB);
PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB);
PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB);
PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 425000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT);
PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET);
PERIPH_CLK(3d2, "3d2", NULL, 98, 0x3b0, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET);
PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE);
PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET);
PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT);
PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT);
PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 260000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT);
PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(dtv, "dtv", NULL, 79, 0x1dc, 250000000, mux_clk_m, 0);
PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 148500000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8 | DIV_U71);
PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 220000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8);
PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8);
PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(dsia, "tegradc.0", "dsia", 48, 0, 500000000, mux_plld_out0, 0);
PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 102000000, mux_pllp_out3, 0);
PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */
PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET);
PERIPH_CLK(tsensor, "tegra-tsensor", NULL, 100, 0x3b8, 216000000, mux_pllp_pllc_clkm_clk32, MUX | DIV_U71);
PERIPH_CLK(actmon, "actmon", NULL, 119, 0x3e8, 216000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71);
PERIPH_CLK(extern1, "extern1", NULL, 120, 0x3ec, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71);
PERIPH_CLK(extern2, "extern2", NULL, 121, 0x3f0, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71);
PERIPH_CLK(extern3, "extern3", NULL, 122, 0x3f4, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71);
PERIPH_CLK(i2cslow, "i2cslow", NULL, 81, 0x3fc, 26000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71 | PERIPH_ON_APB);
PERIPH_CLK(pcie, "tegra-pcie", "pcie", 70, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(afi, "tegra-pcie", "afi", 72, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(se, "se", NULL, 127, 0x42c, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT);
static struct clk tegra_dsib;
static struct clk_tegra tegra_dsib_hw = {
.hw = {
.clk = &tegra_dsib,
},
.lookup = {
.dev_id = "tegradc.1",
.con_id = "dsib",
},
.reg = 0xd0,
.flags = MUX | PLLD,
.max_rate = 500000000,
.u.periph = {
.clk_num = 82,
},
.reset = &tegra30_periph_clk_reset,
};
static struct clk tegra_dsib = {
.name = "dsib",
.ops = &tegra30_dsib_clk_ops,
.hw = &tegra_dsib_hw.hw,
.parent_names = mux_plld_out0_plld2_out0,
.parents = mux_plld_out0_plld2_out0_p,
.num_parents = ARRAY_SIZE(mux_plld_out0_plld2_out0),
};
static struct clk *tegra_list_clks[] = {
&tegra_apbdma,
&tegra_rtc,
&tegra_kbc,
&tegra_timer,
&tegra_kfuse,
&tegra_fuse,
&tegra_fuse_burn,
&tegra_apbif,
&tegra_i2s0,
&tegra_i2s1,
&tegra_i2s2,
&tegra_i2s3,
&tegra_i2s4,
&tegra_spdif_out,
&tegra_spdif_in,
&tegra_pwm,
&tegra_d_audio,
&tegra_dam0,
&tegra_dam1,
&tegra_dam2,
&tegra_hda,
&tegra_hda2codec_2x,
&tegra_hda2hdmi,
&tegra_sbc1,
&tegra_sbc2,
&tegra_sbc3,
&tegra_sbc4,
&tegra_sbc5,
&tegra_sbc6,
&tegra_sata_oob,
&tegra_sata,
&tegra_sata_cold,
&tegra_ndflash,
&tegra_ndspeed,
&tegra_vfir,
&tegra_sdmmc1,
&tegra_sdmmc2,
&tegra_sdmmc3,
&tegra_sdmmc4,
&tegra_vcp,
&tegra_bsea,
&tegra_bsev,
&tegra_vde,
&tegra_csite,
&tegra_la,
&tegra_owr,
&tegra_nor,
&tegra_mipi,
&tegra_i2c1,
&tegra_i2c2,
&tegra_i2c3,
&tegra_i2c4,
&tegra_i2c5,
&tegra_uarta,
&tegra_uartb,
&tegra_uartc,
&tegra_uartd,
&tegra_uarte,
&tegra_vi,
&tegra_3d,
&tegra_3d2,
&tegra_2d,
&tegra_vi_sensor,
&tegra_epp,
&tegra_mpe,
&tegra_host1x,
&tegra_cve,
&tegra_tvo,
&tegra_dtv,
&tegra_hdmi,
&tegra_tvdac,
&tegra_disp1,
&tegra_disp2,
&tegra_usbd,
&tegra_usb2,
&tegra_usb3,
&tegra_dsia,
&tegra_dsib,
&tegra_csi,
&tegra_isp,
&tegra_csus,
&tegra_tsensor,
&tegra_actmon,
&tegra_extern1,
&tegra_extern2,
&tegra_extern3,
&tegra_i2cslow,
&tegra_pcie,
&tegra_afi,
&tegra_se,
};
#define CLK_DUPLICATE(_name, _dev, _con) \
{ \
.name = _name, \
.lookup = { \
.dev_id = _dev, \
.con_id = _con, \
}, \
}
/* Some clocks may be used by different drivers depending on the board
* configuration. List those here to register them twice in the clock lookup
* table under two names.
*/
static struct clk_duplicate tegra_clk_duplicates[] = {
CLK_DUPLICATE("uarta", "serial8250.0", NULL),
CLK_DUPLICATE("uartb", "serial8250.1", NULL),
CLK_DUPLICATE("uartc", "serial8250.2", NULL),
CLK_DUPLICATE("uartd", "serial8250.3", NULL),
CLK_DUPLICATE("uarte", "serial8250.4", NULL),
CLK_DUPLICATE("usbd", "utmip-pad", NULL),
CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
CLK_DUPLICATE("usbd", "tegra-otg", NULL),
CLK_DUPLICATE("dsib", "tegradc.0", "dsib"),
CLK_DUPLICATE("dsia", "tegradc.1", "dsia"),
CLK_DUPLICATE("bsev", "tegra-avp", "bsev"),
CLK_DUPLICATE("bsev", "nvavp", "bsev"),
CLK_DUPLICATE("vde", "tegra-aes", "vde"),
CLK_DUPLICATE("bsea", "tegra-aes", "bsea"),
CLK_DUPLICATE("bsea", "nvavp", "bsea"),
CLK_DUPLICATE("cml1", "tegra_sata_cml", NULL),
CLK_DUPLICATE("cml0", "tegra_pcie", "cml"),
CLK_DUPLICATE("pciex", "tegra_pcie", "pciex"),
CLK_DUPLICATE("i2c1", "tegra-i2c-slave.0", NULL),
CLK_DUPLICATE("i2c2", "tegra-i2c-slave.1", NULL),
CLK_DUPLICATE("i2c3", "tegra-i2c-slave.2", NULL),
CLK_DUPLICATE("i2c4", "tegra-i2c-slave.3", NULL),
CLK_DUPLICATE("i2c5", "tegra-i2c-slave.4", NULL),
CLK_DUPLICATE("sbc1", "spi_slave_tegra.0", NULL),
CLK_DUPLICATE("sbc2", "spi_slave_tegra.1", NULL),
CLK_DUPLICATE("sbc3", "spi_slave_tegra.2", NULL),
CLK_DUPLICATE("sbc4", "spi_slave_tegra.3", NULL),
CLK_DUPLICATE("sbc5", "spi_slave_tegra.4", NULL),
CLK_DUPLICATE("sbc6", "spi_slave_tegra.5", NULL),
CLK_DUPLICATE("twd", "smp_twd", NULL),
CLK_DUPLICATE("vcp", "nvavp", "vcp"),
CLK_DUPLICATE("i2s0", NULL, "i2s0"),
CLK_DUPLICATE("i2s1", NULL, "i2s1"),
CLK_DUPLICATE("i2s2", NULL, "i2s2"),
CLK_DUPLICATE("i2s3", NULL, "i2s3"),
CLK_DUPLICATE("i2s4", NULL, "i2s4"),
CLK_DUPLICATE("dam0", NULL, "dam0"),
CLK_DUPLICATE("dam1", NULL, "dam1"),
CLK_DUPLICATE("dam2", NULL, "dam2"),
CLK_DUPLICATE("spdif_in", NULL, "spdif_in"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.0", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.1", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.2", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.3", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.4", "fast-clk"),
CLK_DUPLICATE("pll_p", "tegradc.0", "parent"),
CLK_DUPLICATE("pll_p", "tegradc.1", "parent"),
CLK_DUPLICATE("pll_d2_out0", "hdmi", "parent"),
};
static struct clk *tegra_ptr_clks[] = {
&tegra_clk_32k,
&tegra_clk_m,
&tegra_clk_m_div2,
&tegra_clk_m_div4,
&tegra_pll_ref,
&tegra_pll_m,
&tegra_pll_m_out1,
&tegra_pll_c,
&tegra_pll_c_out1,
&tegra_pll_p,
&tegra_pll_p_out1,
&tegra_pll_p_out2,
&tegra_pll_p_out3,
&tegra_pll_p_out4,
&tegra_pll_a,
&tegra_pll_a_out0,
&tegra_pll_d,
&tegra_pll_d_out0,
&tegra_pll_d2,
&tegra_pll_d2_out0,
&tegra_pll_u,
&tegra_pll_x,
&tegra_pll_x_out0,
&tegra_pll_e,
&tegra_clk_cclk_g,
&tegra_cml0,
&tegra_cml1,
&tegra_pciex,
&tegra_clk_sclk,
&tegra_hclk,
&tegra_pclk,
&tegra_clk_blink,
&tegra30_clk_twd,
};
static void tegra30_init_one_clock(struct clk *c)
{
struct clk_tegra *clk = to_clk_tegra(c->hw);
__clk_init(NULL, c);
INIT_LIST_HEAD(&clk->shared_bus_list);
if (!clk->lookup.dev_id && !clk->lookup.con_id)
clk->lookup.con_id = c->name;
clk->lookup.clk = c;
clkdev_add(&clk->lookup);
tegra_clk_add(c);
}
void __init tegra30_init_clocks(void)
{
int i;
struct clk *c;
for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++)
tegra30_init_one_clock(tegra_ptr_clks[i]);
for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++)
tegra30_init_one_clock(tegra_list_clks[i]);
for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) {
c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name);
if (!c) {
pr_err("%s: Unknown duplicate clock %s\n", __func__,
tegra_clk_duplicates[i].name);
continue;
}
tegra_clk_duplicates[i].lookup.clk = c;
clkdev_add(&tegra_clk_duplicates[i].lookup);
}
for (i = 0; i < ARRAY_SIZE(tegra_sync_source_list); i++)
tegra30_init_one_clock(tegra_sync_source_list[i]);
for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_list); i++)
tegra30_init_one_clock(tegra_clk_audio_list[i]);
for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_2x_list); i++)
tegra30_init_one_clock(tegra_clk_audio_2x_list[i]);
for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++)
tegra30_init_one_clock(tegra_clk_out_list[i]);
tegra30_cpu_car_ops_init();
}
include/linux/clk/tegra.h
浏览文件 @ 52dec4c9
...@@ -120,8 +120,6 @@ static inline void tegra_cpu_clock_resume(void) ...@@ -120,8 +120,6 @@ static inline void tegra_cpu_clock_resume(void)
} }
#endif #endif
void tegra20_cpu_car_ops_init(void);
void tegra30_cpu_car_ops_init(void);
void tegra_periph_reset_deassert(struct clk *c); void tegra_periph_reset_deassert(struct clk *c);
void tegra_periph_reset_assert(struct clk *c); void tegra_periph_reset_assert(struct clk *c);
void tegra_clocks_init(void); void tegra_clocks_init(void);
......
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