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Kernel
提交 b4eaa1cc 编写于 作者: P Paul Mundt
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sh: Kill off the rest of arch/sh64/kernel/. 

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
上级 18bc8131
隐藏空白更改
内联 并排
Showing with 8 addition and 1073 deletion
arch/sh/kernel/Makefile_32
浏览文件 @ b4eaa1cc
......@@ -6,7 +6,7 @@ extra-y := head_32.o init_task.o vmlinux.lds
obj-y := debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o sys_sh32.o \
syscalls_32.o time.o topology.o traps.o traps_32.o
syscalls_32.o time_32.o topology.o traps.o traps_32.o
obj-y += cpu/ timers/
obj-$(CONFIG_VSYSCALL) += vsyscall/
......
arch/sh/kernel/Makefile_64
浏览文件 @ b4eaa1cc
......@@ -2,7 +2,7 @@ extra-y := head_64.o init_task.o vmlinux.lds
obj-y := debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o sys_sh64.o \
syscalls_64.o time.o topology.o traps.o traps_64.o
syscalls_64.o time_64.o topology.o traps.o traps_64.o
obj-y += cpu/ timers/
obj-$(CONFIG_VSYSCALL) += vsyscall/
......
arch/sh64/kernel/time.c → arch/sh/kernel/time_64.c
浏览文件 @ b4eaa1cc
......@@ -31,14 +31,14 @@
#include <linux/bcd.h>
#include <linux/timex.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <asm/registers.h> /* required by inline __asm__ stmt. */
#include <asm/cpu/registers.h> /* required by inline __asm__ stmt. */
#include <asm/cpu/irq.h>
#include <asm/addrspace.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/delay.h>
#include <asm/hardware.h>
#define TMU_TOCR_INIT 0x00
#define TMU0_TCR_INIT 0x0020
......@@ -240,11 +240,8 @@ static inline void do_timer_interrupt(void)
profile_tick(CPU_PROFILING);
#ifdef CONFIG_HEARTBEAT
{
extern void heartbeat(void);
heartbeat();
}
if (sh_mv.mv_heartbeat != NULL)
sh_mv.mv_heartbeat();
#endif
/*
......
arch/sh64/kernel/Makefile 已删除 100644 → 0
浏览文件 @ 18bc8131
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2000, 2001 Paolo Alberelli
# Copyright (C) 2003 Paul Mundt
#
# Makefile for the Linux sh64 kernel.
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o signal.o entry.o traps.o irq.o irq_intc.o \
ptrace.o setup.o time.o sys_sh64.o semaphore.o sh_ksyms.o \
switchto.o syscalls.o
obj-$(CONFIG_HEARTBEAT) += led.o
obj-$(CONFIG_SH_ALPHANUMERIC) += alphanum.o
obj-$(CONFIG_SH_DMA) += dma.o
obj-$(CONFIG_SH_FPU) += fpu.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_KALLSYMS) += unwind.o
obj-$(CONFIG_PCI) += pcibios.o
obj-$(CONFIG_MODULES) += module.o
ifeq ($(CONFIG_PCI),y)
obj-$(CONFIG_CPU_SH5) += pci_sh5.o
endif
USE_STANDARD_AS_RULE := true
arch/sh64/kernel/alphanum.c 已删除 100644 → 0
浏览文件 @ 18bc8131
/*
* arch/sh64/kernel/alphanum.c
*
* Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Machine-independent functions for handling 8-digit alphanumeric display
* (e.g. Agilent HDSP-253x)
*/
#include <linux/stddef.h>
#include <linux/sched.h>
void mach_alphanum(int pos, unsigned char val);
void print_seg(char *file, int line)
{
int i;
unsigned int nibble;
for (i = 0; i < 5; i++) {
mach_alphanum(i, file[i]);
}
for (i = 0; i < 3; i++) {
nibble = ((line >> (i * 4)) & 0xf);
mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
}
}
void print_seg_num(unsigned num)
{
int i;
unsigned int nibble;
for (i = 0; i < 8; i++) {
nibble = ((num >> (i * 4)) & 0xf);
mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
}
}
arch/sh64/kernel/dma.c 已删除 100644 → 0
浏览文件 @ 18bc8131
/*
* arch/sh64/kernel/dma.c
*
* DMA routines for the SH-5 DMAC.
*
* Copyright (C) 2003 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <asm/hardware.h>
#include <asm/dma.h>
#include <asm/signal.h>
#include <asm/errno.h>
#include <asm/io.h>
typedef struct {
unsigned long dev_addr;
unsigned long mem_addr;
unsigned int mode;
unsigned int count;
} dma_info_t;
static dma_info_t dma_info[MAX_DMA_CHANNELS];
static DEFINE_SPINLOCK(dma_spin_lock);
/* arch/sh64/kernel/irq_intc.c */
extern void make_intc_irq(unsigned int irq);
/* DMAC Interrupts */
#define DMA_IRQ_DMTE0 18
#define DMA_IRQ_DERR 22
#define DMAC_COMMON_BASE (dmac_base + 0x08)
#define DMAC_SAR_BASE (dmac_base + 0x10)
#define DMAC_DAR_BASE (dmac_base + 0x18)
#define DMAC_COUNT_BASE (dmac_base + 0x20)
#define DMAC_CTRL_BASE (dmac_base + 0x28)
#define DMAC_STATUS_BASE (dmac_base + 0x30)
#define DMAC_SAR(n) (DMAC_SAR_BASE + ((n) * 0x28))
#define DMAC_DAR(n) (DMAC_DAR_BASE + ((n) * 0x28))
#define DMAC_COUNT(n) (DMAC_COUNT_BASE + ((n) * 0x28))
#define DMAC_CTRL(n) (DMAC_CTRL_BASE + ((n) * 0x28))
#define DMAC_STATUS(n) (DMAC_STATUS_BASE + ((n) * 0x28))
/* DMAC.COMMON Bit Definitions */
#define DMAC_COMMON_PR 0x00000001 /* Priority */
/* Bits 1-2 Reserved */
#define DMAC_COMMON_ME 0x00000008 /* Master Enable */
#define DMAC_COMMON_NMI 0x00000010 /* NMI Flag */
/* Bits 5-6 Reserved */
#define DMAC_COMMON_ER 0x00000780 /* Error Response */
#define DMAC_COMMON_AAE 0x00007800 /* Address Alignment Error */
/* Bits 15-63 Reserved */
/* DMAC.SAR Bit Definitions */
#define DMAC_SAR_ADDR 0xffffffff /* Source Address */
/* DMAC.DAR Bit Definitions */
#define DMAC_DAR_ADDR 0xffffffff /* Destination Address */
/* DMAC.COUNT Bit Definitions */
#define DMAC_COUNT_CNT 0xffffffff /* Transfer Count */
/* DMAC.CTRL Bit Definitions */
#define DMAC_CTRL_TS 0x00000007 /* Transfer Size */
#define DMAC_CTRL_SI 0x00000018 /* Source Increment */
#define DMAC_CTRL_DI 0x00000060 /* Destination Increment */
#define DMAC_CTRL_RS 0x00000780 /* Resource Select */
#define DMAC_CTRL_IE 0x00000800 /* Interrupt Enable */
#define DMAC_CTRL_TE 0x00001000 /* Transfer Enable */
/* Bits 15-63 Reserved */
/* DMAC.STATUS Bit Definitions */
#define DMAC_STATUS_TE 0x00000001 /* Transfer End */
#define DMAC_STATUS_AAE 0x00000002 /* Address Alignment Error */
/* Bits 2-63 Reserved */
static unsigned long dmac_base;
void set_dma_count(unsigned int chan, unsigned int count);
void set_dma_addr(unsigned int chan, unsigned int addr);
static irqreturn_t dma_mte(int irq, void *dev_id, struct pt_regs *regs)
{
unsigned int chan = irq - DMA_IRQ_DMTE0;
dma_info_t *info = dma_info + chan;
u64 status;
if (info->mode & DMA_MODE_WRITE) {
sh64_out64(info->mem_addr & DMAC_SAR_ADDR, DMAC_SAR(chan));
} else {
sh64_out64(info->mem_addr & DMAC_DAR_ADDR, DMAC_DAR(chan));
}
set_dma_count(chan, info->count);
/* Clear the TE bit */
status = sh64_in64(DMAC_STATUS(chan));
status &= ~DMAC_STATUS_TE;
sh64_out64(status, DMAC_STATUS(chan));
return IRQ_HANDLED;
}
static struct irqaction irq_dmte = {
.handler = dma_mte,
.flags = IRQF_DISABLED,
.name = "DMA MTE",
};
static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
{
u64 tmp;
u8 chan;
printk(KERN_NOTICE "DMAC: Got a DMA Error!\n");
tmp = sh64_in64(DMAC_COMMON_BASE);
/* Check for the type of error */
if ((chan = tmp & DMAC_COMMON_AAE)) {
/* It's an address alignment error.. */
printk(KERN_NOTICE "DMAC: Alignment error on channel %d, ", chan);
printk(KERN_NOTICE "SAR: 0x%08llx, DAR: 0x%08llx, COUNT: %lld\n",
(sh64_in64(DMAC_SAR(chan)) & DMAC_SAR_ADDR),
(sh64_in64(DMAC_DAR(chan)) & DMAC_DAR_ADDR),
(sh64_in64(DMAC_COUNT(chan)) & DMAC_COUNT_CNT));
} else if ((chan = tmp & DMAC_COMMON_ER)) {
/* Something else went wrong.. */
printk(KERN_NOTICE "DMAC: Error on channel %d\n", chan);
}
/* Reset the ME bit to clear the interrupt */
tmp |= DMAC_COMMON_ME;
sh64_out64(tmp, DMAC_COMMON_BASE);
return IRQ_HANDLED;
}
static struct irqaction irq_derr = {
.handler = dma_err,
.flags = IRQF_DISABLED,
.name = "DMA Error",
};
static inline unsigned long calc_xmit_shift(unsigned int chan)
{
return sh64_in64(DMAC_CTRL(chan)) & 0x03;
}
void setup_dma(unsigned int chan, dma_info_t *info)
{
unsigned int irq = DMA_IRQ_DMTE0 + chan;
dma_info_t *dma = dma_info + chan;
make_intc_irq(irq);
setup_irq(irq, &irq_dmte);
dma = info;
}
void enable_dma(unsigned int chan)
{
u64 ctrl;
ctrl = sh64_in64(DMAC_CTRL(chan));
ctrl |= DMAC_CTRL_TE;
sh64_out64(ctrl, DMAC_CTRL(chan));
}
void disable_dma(unsigned int chan)
{
u64 ctrl;
ctrl = sh64_in64(DMAC_CTRL(chan));
ctrl &= ~DMAC_CTRL_TE;
sh64_out64(ctrl, DMAC_CTRL(chan));
}
void set_dma_mode(unsigned int chan, char mode)
{
dma_info_t *info = dma_info + chan;
info->mode = mode;
set_dma_addr(chan, info->mem_addr);
set_dma_count(chan, info->count);
}
void set_dma_addr(unsigned int chan, unsigned int addr)
{
dma_info_t *info = dma_info + chan;
unsigned long sar, dar;
info->mem_addr = addr;
sar = (info->mode & DMA_MODE_WRITE) ? info->mem_addr : info->dev_addr;
dar = (info->mode & DMA_MODE_WRITE) ? info->dev_addr : info->mem_addr;
sh64_out64(sar & DMAC_SAR_ADDR, DMAC_SAR(chan));
sh64_out64(dar & DMAC_SAR_ADDR, DMAC_DAR(chan));
}
void set_dma_count(unsigned int chan, unsigned int count)
{
dma_info_t *info = dma_info + chan;
u64 tmp;
info->count = count;
tmp = (info->count >> calc_xmit_shift(chan)) & DMAC_COUNT_CNT;
sh64_out64(tmp, DMAC_COUNT(chan));
}
unsigned long claim_dma_lock(void)
{
unsigned long flags;
spin_lock_irqsave(&dma_spin_lock, flags);
return flags;
}
void release_dma_lock(unsigned long flags)
{
spin_unlock_irqrestore(&dma_spin_lock, flags);
}
int get_dma_residue(unsigned int chan)
{
return sh64_in64(DMAC_COUNT(chan) << calc_xmit_shift(chan));
}
int __init init_dma(void)
{
struct vcr_info vcr;
u64 tmp;
/* Remap the DMAC */
dmac_base = onchip_remap(PHYS_DMAC_BLOCK, 1024, "DMAC");
if (!dmac_base) {
printk(KERN_ERR "Unable to remap DMAC\n");
return -ENOMEM;
}
/* Report DMAC.VCR Info */
vcr = sh64_get_vcr_info(dmac_base);
printk("DMAC: Module ID: 0x%04x, Module version: 0x%04x\n",
vcr.mod_id, vcr.mod_vers);
/* Set the ME bit */
tmp = sh64_in64(DMAC_COMMON_BASE);
tmp |= DMAC_COMMON_ME;
sh64_out64(tmp, DMAC_COMMON_BASE);
/* Enable the DMAC Error Interrupt */
make_intc_irq(DMA_IRQ_DERR);
setup_irq(DMA_IRQ_DERR, &irq_derr);
return 0;
}
static void __exit exit_dma(void)
{
onchip_unmap(dmac_base);
free_irq(DMA_IRQ_DERR, 0);
}
module_init(init_dma);
module_exit(exit_dma);
MODULE_AUTHOR("Paul Mundt");
MODULE_DESCRIPTION("DMA API for SH-5 DMAC");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(setup_dma);
EXPORT_SYMBOL(claim_dma_lock);
EXPORT_SYMBOL(release_dma_lock);
EXPORT_SYMBOL(enable_dma);
EXPORT_SYMBOL(disable_dma);
EXPORT_SYMBOL(set_dma_mode);
EXPORT_SYMBOL(set_dma_addr);
EXPORT_SYMBOL(set_dma_count);
EXPORT_SYMBOL(get_dma_residue);
arch/sh64/kernel/early_printk.c 已删除 100644 → 0
浏览文件 @ 18bc8131
/*
* arch/sh64/kernel/early_printk.c
*
* SH-5 Early SCIF console (cloned and hacked from sh implementation)
*
* Copyright (C) 2003, 2004 Paul Mundt <lethal@linux-sh.org>
* Copyright (C) 2002 M. R. Brown <mrbrown@0xd6.org>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/console.h>
#include <linux/tty.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/hardware.h>
#define SCIF_BASE_ADDR 0x01030000
#define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
/*
* Fixed virtual address where SCIF is mapped (should already be done
* in arch/sh64/kernel/head.S!).
*/
#define SCIF_REG 0xfa030000
enum {
SCIF_SCSMR2 = SCIF_REG + 0x00,
SCIF_SCBRR2 = SCIF_REG + 0x04,
SCIF_SCSCR2 = SCIF_REG + 0x08,
SCIF_SCFTDR2 = SCIF_REG + 0x0c,
SCIF_SCFSR2 = SCIF_REG + 0x10,
SCIF_SCFRDR2 = SCIF_REG + 0x14,
SCIF_SCFCR2 = SCIF_REG + 0x18,
SCIF_SCFDR2 = SCIF_REG + 0x1c,
SCIF_SCSPTR2 = SCIF_REG + 0x20,
SCIF_SCLSR2 = SCIF_REG + 0x24,
};
static void sh_console_putc(int c)
{
while (!(ctrl_inw(SCIF_SCFSR2) & 0x20))
cpu_relax();
ctrl_outb(c, SCIF_SCFTDR2);
ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0x9f), SCIF_SCFSR2);
if (c == '\n')
sh_console_putc('\r');
}
static void sh_console_flush(void)
{
ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
while (!(ctrl_inw(SCIF_SCFSR2) & 0x40))
cpu_relax();
ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
}
static void sh_console_write(struct console *con, const char *s, unsigned count)
{
while (count-- > 0)
sh_console_putc(*s++);
sh_console_flush();
}
static int __init sh_console_setup(struct console *con, char *options)
{
con->cflag = CREAD | HUPCL | CLOCAL | B19200 | CS8;
return 0;
}
static struct console sh_console = {
.name = "scifcon",
.write = sh_console_write,
.setup = sh_console_setup,
.flags = CON_PRINTBUFFER | CON_BOOT,
.index = -1,
};
void __init enable_early_printk(void)
{
ctrl_outb(0x2a, SCIF_SCBRR2); /* 19200bps */
ctrl_outw(0x04, SCIF_SCFCR2); /* Reset TFRST */
ctrl_outw(0x10, SCIF_SCFCR2); /* TTRG0=1 */
ctrl_outw(0, SCIF_SCSPTR2);
ctrl_outw(0x60, SCIF_SCFSR2);
ctrl_outw(0, SCIF_SCLSR2);
ctrl_outw(0x30, SCIF_SCSCR2);
register_console(&sh_console);
}
arch/sh64/kernel/led.c 已删除 100644 → 0
浏览文件 @ 18bc8131
/*
* arch/sh64/kernel/led.c
*
* Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Flash the LEDs
*/
#include <linux/stddef.h>
#include <linux/sched.h>
void mach_led(int pos, int val);
/* acts like an actual heart beat -- ie thump-thump-pause... */
void heartbeat(void)
{
static unsigned int cnt = 0, period = 0, dist = 0;
if (cnt == 0 || cnt == dist) {
mach_led(-1, 1);
} else if (cnt == 7 || cnt == dist + 7) {
mach_led(-1, 0);
}
if (++cnt > period) {
cnt = 0;
/*
* The hyperbolic function below modifies the heartbeat period
* length in dependency of the current (5min) load. It goes
* through the points f(0)=126, f(1)=86, f(5)=51, f(inf)->30.
*/
period = ((672 << FSHIFT) / (5 * avenrun[0] +
(7 << FSHIFT))) + 30;
dist = period / 4;
}
}
arch/sh64/kernel/pcibios.c 已删除 100644 → 0
浏览文件 @ 18bc8131
/*
* $Id: pcibios.c,v 1.1 2001/08/24 12:38:19 dwmw2 Exp $
*
* arch/sh/kernel/pcibios.c
*
* Copyright (C) 2002 STMicroelectronics Limited
* Author : David J. McKay
*
* Copyright (C) 2004 Richard Curnow, SuperH UK Limited
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
* This is GPL'd.
*
* Provided here are generic versions of:
* pcibios_update_resource()
* pcibios_align_resource()
* pcibios_enable_device()
* pcibios_set_master()
* pcibios_update_irq()
*
* These functions are collected here to reduce duplication of common
* code amongst the many platform-specific PCI support code files.
*
* Platform-specific files are expected to provide:
* pcibios_fixup_bus()
* pcibios_init()
* pcibios_setup()
* pcibios_fixup_pbus_ranges()
*/
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
void
pcibios_update_resource(struct pci_dev *dev, struct resource *root,
struct resource *res, int resource)
{
u32 new, check;
int reg;
new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
if (resource < 6) {
reg = PCI_BASE_ADDRESS_0 + 4*resource;
} else if (resource == PCI_ROM_RESOURCE) {
res->flags |= IORESOURCE_ROM_ENABLE;
new |= PCI_ROM_ADDRESS_ENABLE;
reg = dev->rom_base_reg;
} else {
/* Somebody might have asked allocation of a non-standard resource */
return;
}
pci_write_config_dword(dev, reg, new);
pci_read_config_dword(dev, reg, &check);
if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
printk(KERN_ERR "PCI: Error while updating region "
"%s/%d (%08x != %08x)\n", pci_name(dev), resource,
new, check);
}
}
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the
* addresses to be allocated in the 0x000-0x0ff region
* modulo 0x400.
*/
void pcibios_align_resource(void *data, struct resource *res,
resource_size_t size, resource_size_t align)
{
if (res->flags & IORESOURCE_IO) {
resource_size_t start = res->start;
if (start & 0x300) {
start = (start + 0x3ff) & ~0x3ff;
res->start = start;
}
}
}
static void pcibios_enable_bridge(struct pci_dev *dev)
{
struct pci_bus *bus = dev->subordinate;
u16 cmd, old_cmd;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
if (bus->resource[0]->flags & IORESOURCE_IO) {
cmd |= PCI_COMMAND_IO;
}
if ((bus->resource[1]->flags & IORESOURCE_MEM) ||
(bus->resource[2]->flags & IORESOURCE_PREFETCH)) {
cmd |= PCI_COMMAND_MEMORY;
}
if (cmd != old_cmd) {
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
printk("PCI bridge %s, command register -> %04x\n",
pci_name(dev), cmd);
}
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
u16 cmd, old_cmd;
int idx;
struct resource *r;
if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
pcibios_enable_bridge(dev);
}
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
for(idx=0; idx<6; idx++) {
if (!(mask & (1 << idx)))
continue;
r = &dev->resource[idx];
if (!r->start && r->end) {
printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
return -EINVAL;
}
if (r->flags & IORESOURCE_IO)
cmd |= PCI_COMMAND_IO;
if (r->flags & IORESOURCE_MEM)
cmd |= PCI_COMMAND_MEMORY;
}
if (dev->resource[PCI_ROM_RESOURCE].start)
cmd |= PCI_COMMAND_MEMORY;
if (cmd != old_cmd) {
printk(KERN_INFO "PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
}
/*
* If we set up a device for bus mastering, we need to check and set
* the latency timer as it may not be properly set.
*/
unsigned int pcibios_max_latency = 255;
void pcibios_set_master(struct pci_dev *dev)
{
u8 lat;
pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
if (lat < 16)
lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
else if (lat > pcibios_max_latency)
lat = pcibios_max_latency;
else
return;
printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat);
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
}
void __init pcibios_update_irq(struct pci_dev *dev, int irq)
{
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
}
arch/sh64/kernel/setup.c 已删除 100644 → 0
浏览文件 @ 18bc8131
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* arch/sh64/kernel/setup.c
*
* sh64 Arch Support
*
* This file handles the architecture-dependent parts of initialization
*
* Copyright (C) 2000, 2001 Paolo Alberelli
* Copyright (C) 2003, 2004 Paul Mundt
*
* benedict.gaster@superh.com: 2nd May 2002
* Modified to use the empty_zero_page to pass command line arguments.
*
* benedict.gaster@superh.com: 3rd May 2002
* Added support for ramdisk, removing statically linked romfs at the same time.
*
* lethal@linux-sh.org: 15th May 2003
* Added generic procfs cpuinfo reporting. Make boards just export their name.
*
* lethal@linux-sh.org: 25th May 2003
* Added generic get_cpu_subtype() for subtype reporting from cpu_data->type.
*
*/
#include <linux/errno.h>
#include <linux/rwsem.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/screen_info.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
#include <linux/bootmem.h>
#include <linux/console.h>
#include <linux/root_dev.h>
#include <linux/cpu.h>
#include <linux/initrd.h>
#include <linux/pfn.h>
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/platform.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/smp.h>
struct screen_info screen_info;
#ifdef CONFIG_BLK_DEV_RAM
extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
extern int rd_image_start; /* starting block # of image */
#endif
extern int root_mountflags;
extern char *get_system_type(void);
extern void platform_setup(void);
extern void platform_monitor(void);
extern void platform_reserve(void);
extern int sh64_cache_init(void);
extern int sh64_tlb_init(void);
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
unsigned long long memory_start = CONFIG_MEMORY_START;
unsigned long long memory_end = CONFIG_MEMORY_START + (CONFIG_MEMORY_SIZE_IN_MB * 1024 * 1024);
struct sh_cpuinfo boot_cpu_data;
static inline void parse_mem_cmdline (char ** cmdline_p)
{
char c = ' ', *to = command_line, *from = COMMAND_LINE;
int len = 0;
/* Save unparsed command line copy for /proc/cmdline */
memcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
for (;;) {
/*
* "mem=XXX[kKmM]" defines a size of memory.
*/
if (c == ' ' && !memcmp(from, "mem=", 4)) {
if (to != command_line)
to--;
{
unsigned long mem_size;
mem_size = memparse(from+4, &from);
memory_end = memory_start + mem_size;
}
}
c = *(from++);
if (!c)
break;
if (COMMAND_LINE_SIZE <= ++len)
break;
*(to++) = c;
}
*to = '\0';
*cmdline_p = command_line;
}
static void __init sh64_cpu_type_detect(void)
{
extern unsigned long long peek_real_address_q(unsigned long long addr);
unsigned long long cir;
/* Do peeks in real mode to avoid having to set up a mapping for the
WPC registers. On SH5-101 cut2, such a mapping would be exposed to
an address translation erratum which would make it hard to set up
correctly. */
cir = peek_real_address_q(0x0d000008);
if ((cir & 0xffff) == 0x5103) {
boot_cpu_data.type = CPU_SH5_103;
} else if (((cir >> 32) & 0xffff) == 0x51e2) {
/* CPU.VCR aliased at CIR address on SH5-101 */
boot_cpu_data.type = CPU_SH5_101;
} else {
boot_cpu_data.type = CPU_SH_NONE;
}
}
void __init setup_arch(char **cmdline_p)
{
unsigned long bootmap_size, i;
unsigned long first_pfn, start_pfn, last_pfn, pages;
#ifdef CONFIG_EARLY_PRINTK
extern void enable_early_printk(void);
/*
* Setup Early SCIF console
*/
enable_early_printk();
#endif
/*
* Setup TLB mappings
*/
sh64_tlb_init();
/*
* Caches are already initialized by the time we get here, so we just
* fill in cpu_data info for the caches.
*/
sh64_cache_init();
platform_setup();
platform_monitor();
sh64_cpu_type_detect();
ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
#ifdef CONFIG_BLK_DEV_RAM
rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
#endif
if (!MOUNT_ROOT_RDONLY)
root_mountflags &= ~MS_RDONLY;
init_mm.start_code = (unsigned long) _text;
init_mm.end_code = (unsigned long) _etext;
init_mm.end_data = (unsigned long) _edata;
init_mm.brk = (unsigned long) _end;
code_resource.start = __pa(_text);
code_resource.end = __pa(_etext)-1;
data_resource.start = __pa(_etext);
data_resource.end = __pa(_edata)-1;
parse_mem_cmdline(cmdline_p);
/*
* Find the lowest and highest page frame numbers we have available
*/
first_pfn = PFN_DOWN(memory_start);
last_pfn = PFN_DOWN(memory_end);
pages = last_pfn - first_pfn;
/*
* Partially used pages are not usable - thus
* we are rounding upwards:
*/
start_pfn = PFN_UP(__pa(_end));
/*
* Find a proper area for the bootmem bitmap. After this
* bootstrap step all allocations (until the page allocator
* is intact) must be done via bootmem_alloc().
*/
bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
first_pfn,
last_pfn);
/*
* Round it up.
*/
bootmap_size = PFN_PHYS(PFN_UP(bootmap_size));
/*
* Register fully available RAM pages with the bootmem allocator.
*/
free_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn), PFN_PHYS(pages));
/*
* Reserve all kernel sections + bootmem bitmap + a guard page.
*/
reserve_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn),
(PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE) - PFN_PHYS(first_pfn));
/*
* Reserve platform dependent sections
*/
platform_reserve();
#ifdef CONFIG_BLK_DEV_INITRD
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (PFN_PHYS(last_pfn))) {
reserve_bootmem_node(NODE_DATA(0), INITRD_START + __MEMORY_START, INITRD_SIZE);
initrd_start = (long) INITRD_START + PAGE_OFFSET + __MEMORY_START;
initrd_end = initrd_start + INITRD_SIZE;
} else {
printk("initrd extends beyond end of memory "
"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
(long) INITRD_START + INITRD_SIZE,
PFN_PHYS(last_pfn));
initrd_start = 0;
}
}
#endif
/*
* Claim all RAM, ROM, and I/O resources.
*/
/* Kernel RAM */
request_resource(&iomem_resource, &code_resource);
request_resource(&iomem_resource, &data_resource);
/* Other KRAM space */
for (i = 0; i < STANDARD_KRAM_RESOURCES - 2; i++)
request_resource(&iomem_resource,
&platform_parms.kram_res_p[i]);
/* XRAM space */
for (i = 0; i < STANDARD_XRAM_RESOURCES; i++)
request_resource(&iomem_resource,
&platform_parms.xram_res_p[i]);
/* ROM space */
for (i = 0; i < STANDARD_ROM_RESOURCES; i++)
request_resource(&iomem_resource,
&platform_parms.rom_res_p[i]);
/* I/O space */
for (i = 0; i < STANDARD_IO_RESOURCES; i++)
request_resource(&ioport_resource,
&platform_parms.io_res_p[i]);
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
#elif defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
#endif
printk("Hardware FPU: %s\n", fpu_in_use ? "enabled" : "disabled");
paging_init();
}
void __xchg_called_with_bad_pointer(void)
{
printk(KERN_EMERG "xchg() called with bad pointer !\n");
}
static struct cpu cpu[1];
static int __init topology_init(void)
{
return register_cpu(cpu, 0);
}
subsys_initcall(topology_init);
/*
* Get CPU information
*/
static const char *cpu_name[] = {
[CPU_SH5_101] = "SH5-101",
[CPU_SH5_103] = "SH5-103",
[CPU_SH_NONE] = "Unknown",
};
const char *get_cpu_subtype(void)
{
return cpu_name[boot_cpu_data.type];
}
#ifdef CONFIG_PROC_FS
static int show_cpuinfo(struct seq_file *m,void *v)
{
unsigned int cpu = smp_processor_id();
if (!cpu)
seq_printf(m, "machine\t\t: %s\n", get_system_type());
seq_printf(m, "processor\t: %d\n", cpu);
seq_printf(m, "cpu family\t: SH-5\n");
seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
seq_printf(m, "icache size\t: %dK-bytes\n",
(boot_cpu_data.icache.ways *
boot_cpu_data.icache.sets *
boot_cpu_data.icache.linesz) >> 10);
seq_printf(m, "dcache size\t: %dK-bytes\n",
(boot_cpu_data.dcache.ways *
boot_cpu_data.dcache.sets *
boot_cpu_data.dcache.linesz) >> 10);
seq_printf(m, "itlb entries\t: %d\n", boot_cpu_data.itlb.entries);
seq_printf(m, "dtlb entries\t: %d\n", boot_cpu_data.dtlb.entries);
#define PRINT_CLOCK(name, value) \
seq_printf(m, name " clock\t: %d.%02dMHz\n", \
((value) / 1000000), ((value) % 1000000)/10000)
PRINT_CLOCK("cpu", boot_cpu_data.cpu_clock);
PRINT_CLOCK("bus", boot_cpu_data.bus_clock);
PRINT_CLOCK("module", boot_cpu_data.module_clock);
seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
(loops_per_jiffy*HZ+2500)/500000,
((loops_per_jiffy*HZ+2500)/5000) % 100);
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
return (void*)(*pos == 0);
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
return NULL;
}
static void c_stop(struct seq_file *m, void *v)
{
}
struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
.show = show_cpuinfo,
};
#endif /* CONFIG_PROC_FS */
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