提交 cd39301a 编写于 作者: L Linus Torvalds

Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32

* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
  [AVR32] Add missing #include <linux/param.h> to delay.c
  [AVR32] Pass dev parameter to dma_cache_sync()
  [AVR32] Implement intc_get_pending()
  [AVR32] Don't include <asm/delay.h>
  [AVR32] Put the chip in "stop" mode when halting the system
  [AVR32] Set flow handler for external interrupts
  [AVR32] Remove unused file
  [AVR32] Remove mii_phy_addr and eth_addr from eth_platform_data
  [AVR32] Move ethernet tag parsing to board-specific code
  [AVR32] Add macb1 platform_device
  [AVR32] Portmux API update
......@@ -7,20 +7,83 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/clk.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/arch/board.h>
#include <asm/arch/init.h>
struct eth_platform_data __initdata eth0_data = {
.valid = 1,
.mii_phy_addr = 0x10,
.is_rmii = 0,
.hw_addr = { 0x6a, 0x87, 0x71, 0x14, 0xcd, 0xcb },
struct eth_addr {
u8 addr[6];
};
static struct eth_addr __initdata hw_addr[2];
static struct eth_platform_data __initdata eth_data[2];
extern struct lcdc_platform_data atstk1000_fb0_data;
/*
* The next two functions should go away as the boot loader is
* supposed to initialize the macb address registers with a valid
* ethernet address. But we need to keep it around for a while until
* we can be reasonably sure the boot loader does this.
*
* The phy_id is ignored as the driver will probe for it.
*/
static int __init parse_tag_ethernet(struct tag *tag)
{
int i;
i = tag->u.ethernet.mac_index;
if (i < ARRAY_SIZE(hw_addr))
memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
sizeof(hw_addr[i].addr));
return 0;
}
__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
static void __init set_hw_addr(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
const u8 *addr;
void __iomem *regs;
struct clk *pclk;
if (!res)
return;
if (pdev->id >= ARRAY_SIZE(hw_addr))
return;
addr = hw_addr[pdev->id].addr;
if (!is_valid_ether_addr(addr))
return;
/*
* Since this is board-specific code, we'll cheat and use the
* physical address directly as we happen to know that it's
* the same as the virtual address.
*/
regs = (void __iomem __force *)res->start;
pclk = clk_get(&pdev->dev, "pclk");
if (!pclk)
return;
clk_enable(pclk);
__raw_writel((addr[3] << 24) | (addr[2] << 16)
| (addr[1] << 8) | addr[0], regs + 0x98);
__raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
clk_disable(pclk);
clk_put(pclk);
}
void __init setup_board(void)
{
at32_map_usart(1, 0); /* /dev/ttyS0 */
......@@ -38,7 +101,8 @@ static int __init atstk1002_init(void)
at32_add_device_usart(1);
at32_add_device_usart(2);
at32_add_device_eth(0, &eth0_data);
set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
at32_add_device_spi(0);
at32_add_device_lcdc(0, &atstk1000_fb0_data);
......
......@@ -7,12 +7,12 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/module.h>
#include <asm/checksum.h>
#include <asm/uaccess.h>
#include <asm/delay.h>
/*
* GCC functions
......
......@@ -38,6 +38,13 @@ void cpu_idle(void)
void machine_halt(void)
{
/*
* Enter Stop mode. The 32 kHz oscillator will keep running so
* the RTC will keep the time properly and the system will
* boot quickly.
*/
asm volatile("sleep 3\n\t"
"sub pc, -2");
}
void machine_power_off(void)
......
......@@ -229,30 +229,6 @@ static int __init parse_tag_rsvd_mem(struct tag *tag)
}
__tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem);
static int __init parse_tag_ethernet(struct tag *tag)
{
#if 0
const struct platform_device *pdev;
/*
* We really need a bus type that supports "classes"...this
* will do for now (until we must handle other kinds of
* ethernet controllers)
*/
pdev = platform_get_device("macb", tag->u.ethernet.mac_index);
if (pdev && pdev->dev.platform_data) {
struct eth_platform_data *data = pdev->dev.platform_data;
data->valid = 1;
data->mii_phy_addr = tag->u.ethernet.mii_phy_addr;
memcpy(data->hw_addr, tag->u.ethernet.hw_address,
sizeof(data->hw_addr));
}
#endif
return 0;
}
__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
/*
* Scan the tag table for this tag, and call its parse function. The
* tag table is built by the linker from all the __tagtable
......
......@@ -12,9 +12,9 @@
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/param.h>
#include <linux/types.h>
#include <asm/delay.h>
#include <asm/processor.h>
#include <asm/sysreg.h>
......
......@@ -11,6 +11,7 @@
#include <asm/io.h>
#include <asm/arch/at32ap7000.h>
#include <asm/arch/board.h>
#include <asm/arch/portmux.h>
#include <asm/arch/sm.h>
......@@ -57,6 +58,9 @@ static struct platform_device _name##_id##_device = { \
.num_resources = ARRAY_SIZE(_name##_id##_resource), \
}
#define select_peripheral(pin, periph, flags) \
at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
#define DEV_CLK(_name, devname, bus, _index) \
static struct clk devname##_##_name = { \
.name = #_name, \
......@@ -67,18 +71,6 @@ static struct clk devname##_##_name = { \
.index = _index, \
}
enum {
PIOA,
PIOB,
PIOC,
PIOD,
};
enum {
FUNC_A,
FUNC_B,
};
unsigned long at32ap7000_osc_rates[3] = {
[0] = 32768,
/* FIXME: these are ATSTK1002-specific */
......@@ -569,26 +561,26 @@ DEV_CLK(usart, atmel_usart3, pba, 6);
static inline void configure_usart0_pins(void)
{
portmux_set_func(PIOA, 8, FUNC_B); /* RXD */
portmux_set_func(PIOA, 9, FUNC_B); /* TXD */
select_peripheral(PA(8), PERIPH_B, 0); /* RXD */
select_peripheral(PA(9), PERIPH_B, 0); /* TXD */
}
static inline void configure_usart1_pins(void)
{
portmux_set_func(PIOA, 17, FUNC_A); /* RXD */
portmux_set_func(PIOA, 18, FUNC_A); /* TXD */
select_peripheral(PA(17), PERIPH_A, 0); /* RXD */
select_peripheral(PA(18), PERIPH_A, 0); /* TXD */
}
static inline void configure_usart2_pins(void)
{
portmux_set_func(PIOB, 26, FUNC_B); /* RXD */
portmux_set_func(PIOB, 27, FUNC_B); /* TXD */
select_peripheral(PB(26), PERIPH_B, 0); /* RXD */
select_peripheral(PB(27), PERIPH_B, 0); /* TXD */
}
static inline void configure_usart3_pins(void)
{
portmux_set_func(PIOB, 18, FUNC_B); /* RXD */
portmux_set_func(PIOB, 17, FUNC_B); /* TXD */
select_peripheral(PB(18), PERIPH_B, 0); /* RXD */
select_peripheral(PB(17), PERIPH_B, 0); /* TXD */
}
static struct platform_device *at32_usarts[4];
......@@ -654,6 +646,15 @@ DEFINE_DEV_DATA(macb, 0);
DEV_CLK(hclk, macb0, hsb, 8);
DEV_CLK(pclk, macb0, pbb, 6);
static struct eth_platform_data macb1_data;
static struct resource macb1_resource[] = {
PBMEM(0xfff01c00),
IRQ(26),
};
DEFINE_DEV_DATA(macb, 1);
DEV_CLK(hclk, macb1, hsb, 9);
DEV_CLK(pclk, macb1, pbb, 7);
struct platform_device *__init
at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
{
......@@ -663,27 +664,54 @@ at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
case 0:
pdev = &macb0_device;
portmux_set_func(PIOC, 3, FUNC_A); /* TXD0 */
portmux_set_func(PIOC, 4, FUNC_A); /* TXD1 */
portmux_set_func(PIOC, 7, FUNC_A); /* TXEN */
portmux_set_func(PIOC, 8, FUNC_A); /* TXCK */
portmux_set_func(PIOC, 9, FUNC_A); /* RXD0 */
portmux_set_func(PIOC, 10, FUNC_A); /* RXD1 */
portmux_set_func(PIOC, 13, FUNC_A); /* RXER */
portmux_set_func(PIOC, 15, FUNC_A); /* RXDV */
portmux_set_func(PIOC, 16, FUNC_A); /* MDC */
portmux_set_func(PIOC, 17, FUNC_A); /* MDIO */
select_peripheral(PC(3), PERIPH_A, 0); /* TXD0 */
select_peripheral(PC(4), PERIPH_A, 0); /* TXD1 */
select_peripheral(PC(7), PERIPH_A, 0); /* TXEN */
select_peripheral(PC(8), PERIPH_A, 0); /* TXCK */
select_peripheral(PC(9), PERIPH_A, 0); /* RXD0 */
select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */
select_peripheral(PC(13), PERIPH_A, 0); /* RXER */
select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */
select_peripheral(PC(16), PERIPH_A, 0); /* MDC */
select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */
if (!data->is_rmii) {
select_peripheral(PC(0), PERIPH_A, 0); /* COL */
select_peripheral(PC(1), PERIPH_A, 0); /* CRS */
select_peripheral(PC(2), PERIPH_A, 0); /* TXER */
select_peripheral(PC(5), PERIPH_A, 0); /* TXD2 */
select_peripheral(PC(6), PERIPH_A, 0); /* TXD3 */
select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */
select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */
select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */
select_peripheral(PC(18), PERIPH_A, 0); /* SPD */
}
break;
case 1:
pdev = &macb1_device;
select_peripheral(PD(13), PERIPH_B, 0); /* TXD0 */
select_peripheral(PD(14), PERIPH_B, 0); /* TXD1 */
select_peripheral(PD(11), PERIPH_B, 0); /* TXEN */
select_peripheral(PD(12), PERIPH_B, 0); /* TXCK */
select_peripheral(PD(10), PERIPH_B, 0); /* RXD0 */
select_peripheral(PD(6), PERIPH_B, 0); /* RXD1 */
select_peripheral(PD(5), PERIPH_B, 0); /* RXER */
select_peripheral(PD(4), PERIPH_B, 0); /* RXDV */
select_peripheral(PD(3), PERIPH_B, 0); /* MDC */
select_peripheral(PD(2), PERIPH_B, 0); /* MDIO */
if (!data->is_rmii) {
portmux_set_func(PIOC, 0, FUNC_A); /* COL */
portmux_set_func(PIOC, 1, FUNC_A); /* CRS */
portmux_set_func(PIOC, 2, FUNC_A); /* TXER */
portmux_set_func(PIOC, 5, FUNC_A); /* TXD2 */
portmux_set_func(PIOC, 6, FUNC_A); /* TXD3 */
portmux_set_func(PIOC, 11, FUNC_A); /* RXD2 */
portmux_set_func(PIOC, 12, FUNC_A); /* RXD3 */
portmux_set_func(PIOC, 14, FUNC_A); /* RXCK */
portmux_set_func(PIOC, 18, FUNC_A); /* SPD */
select_peripheral(PC(19), PERIPH_B, 0); /* COL */
select_peripheral(PC(23), PERIPH_B, 0); /* CRS */
select_peripheral(PC(26), PERIPH_B, 0); /* TXER */
select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */
select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */
select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */
select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */
select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */
select_peripheral(PD(15), PERIPH_B, 0); /* SPD */
}
break;
......@@ -714,12 +742,12 @@ struct platform_device *__init at32_add_device_spi(unsigned int id)
switch (id) {
case 0:
pdev = &spi0_device;
portmux_set_func(PIOA, 0, FUNC_A); /* MISO */
portmux_set_func(PIOA, 1, FUNC_A); /* MOSI */
portmux_set_func(PIOA, 2, FUNC_A); /* SCK */
portmux_set_func(PIOA, 3, FUNC_A); /* NPCS0 */
portmux_set_func(PIOA, 4, FUNC_A); /* NPCS1 */
portmux_set_func(PIOA, 5, FUNC_A); /* NPCS2 */
select_peripheral(PA(0), PERIPH_A, 0); /* MISO */
select_peripheral(PA(1), PERIPH_A, 0); /* MOSI */
select_peripheral(PA(2), PERIPH_A, 0); /* SCK */
select_peripheral(PA(3), PERIPH_A, 0); /* NPCS0 */
select_peripheral(PA(4), PERIPH_A, 0); /* NPCS1 */
select_peripheral(PA(5), PERIPH_A, 0); /* NPCS2 */
break;
default:
......@@ -762,37 +790,37 @@ at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data)
switch (id) {
case 0:
pdev = &lcdc0_device;
portmux_set_func(PIOC, 19, FUNC_A); /* CC */
portmux_set_func(PIOC, 20, FUNC_A); /* HSYNC */
portmux_set_func(PIOC, 21, FUNC_A); /* PCLK */
portmux_set_func(PIOC, 22, FUNC_A); /* VSYNC */
portmux_set_func(PIOC, 23, FUNC_A); /* DVAL */
portmux_set_func(PIOC, 24, FUNC_A); /* MODE */
portmux_set_func(PIOC, 25, FUNC_A); /* PWR */
portmux_set_func(PIOC, 26, FUNC_A); /* DATA0 */
portmux_set_func(PIOC, 27, FUNC_A); /* DATA1 */
portmux_set_func(PIOC, 28, FUNC_A); /* DATA2 */
portmux_set_func(PIOC, 29, FUNC_A); /* DATA3 */
portmux_set_func(PIOC, 30, FUNC_A); /* DATA4 */
portmux_set_func(PIOC, 31, FUNC_A); /* DATA5 */
portmux_set_func(PIOD, 0, FUNC_A); /* DATA6 */
portmux_set_func(PIOD, 1, FUNC_A); /* DATA7 */
portmux_set_func(PIOD, 2, FUNC_A); /* DATA8 */
portmux_set_func(PIOD, 3, FUNC_A); /* DATA9 */
portmux_set_func(PIOD, 4, FUNC_A); /* DATA10 */
portmux_set_func(PIOD, 5, FUNC_A); /* DATA11 */
portmux_set_func(PIOD, 6, FUNC_A); /* DATA12 */
portmux_set_func(PIOD, 7, FUNC_A); /* DATA13 */
portmux_set_func(PIOD, 8, FUNC_A); /* DATA14 */
portmux_set_func(PIOD, 9, FUNC_A); /* DATA15 */
portmux_set_func(PIOD, 10, FUNC_A); /* DATA16 */
portmux_set_func(PIOD, 11, FUNC_A); /* DATA17 */
portmux_set_func(PIOD, 12, FUNC_A); /* DATA18 */
portmux_set_func(PIOD, 13, FUNC_A); /* DATA19 */
portmux_set_func(PIOD, 14, FUNC_A); /* DATA20 */
portmux_set_func(PIOD, 15, FUNC_A); /* DATA21 */
portmux_set_func(PIOD, 16, FUNC_A); /* DATA22 */
portmux_set_func(PIOD, 17, FUNC_A); /* DATA23 */
select_peripheral(PC(19), PERIPH_A, 0); /* CC */
select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC */
select_peripheral(PC(21), PERIPH_A, 0); /* PCLK */
select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC */
select_peripheral(PC(23), PERIPH_A, 0); /* DVAL */
select_peripheral(PC(24), PERIPH_A, 0); /* MODE */
select_peripheral(PC(25), PERIPH_A, 0); /* PWR */
select_peripheral(PC(26), PERIPH_A, 0); /* DATA0 */
select_peripheral(PC(27), PERIPH_A, 0); /* DATA1 */
select_peripheral(PC(28), PERIPH_A, 0); /* DATA2 */
select_peripheral(PC(29), PERIPH_A, 0); /* DATA3 */
select_peripheral(PC(30), PERIPH_A, 0); /* DATA4 */
select_peripheral(PC(31), PERIPH_A, 0); /* DATA5 */
select_peripheral(PD(0), PERIPH_A, 0); /* DATA6 */
select_peripheral(PD(1), PERIPH_A, 0); /* DATA7 */
select_peripheral(PD(2), PERIPH_A, 0); /* DATA8 */
select_peripheral(PD(3), PERIPH_A, 0); /* DATA9 */
select_peripheral(PD(4), PERIPH_A, 0); /* DATA10 */
select_peripheral(PD(5), PERIPH_A, 0); /* DATA11 */
select_peripheral(PD(6), PERIPH_A, 0); /* DATA12 */
select_peripheral(PD(7), PERIPH_A, 0); /* DATA13 */
select_peripheral(PD(8), PERIPH_A, 0); /* DATA14 */
select_peripheral(PD(9), PERIPH_A, 0); /* DATA15 */
select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */
select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */
select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */
select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */
select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */
select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */
select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
clk_set_parent(&lcdc0_pixclk, &pll0);
clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0));
......@@ -838,6 +866,8 @@ struct clk *at32_clock_list[] = {
&atmel_usart3_usart,
&macb0_hclk,
&macb0_pclk,
&macb1_hclk,
&macb1_pclk,
&spi0_mck,
&lcdc0_hclk,
&lcdc0_pixclk,
......
......@@ -49,12 +49,25 @@ static void eim_unmask_irq(unsigned int irq)
static int eim_set_irq_type(unsigned int irq, unsigned int flow_type)
{
struct at32_sm *sm = get_irq_chip_data(irq);
struct irq_desc *desc;
unsigned int i = irq - sm->eim_first_irq;
u32 mode, edge, level;
unsigned long flags;
int ret = 0;
flow_type &= IRQ_TYPE_SENSE_MASK;
if (flow_type == IRQ_TYPE_NONE)
flow_type = IRQ_TYPE_LEVEL_LOW;
desc = &irq_desc[irq];
desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) {
desc->status |= IRQ_LEVEL;
set_irq_handler(irq, handle_level_irq);
} else {
set_irq_handler(irq, handle_edge_irq);
}
spin_lock_irqsave(&sm->lock, flags);
......@@ -148,10 +161,15 @@ static int __init eim_init(void)
pattern = sm_readl(sm, EIM_MODE);
nr_irqs = fls(pattern);
/* Trigger on falling edge unless overridden by driver */
sm_writel(sm, EIM_MODE, 0UL);
sm_writel(sm, EIM_EDGE, 0UL);
sm->eim_chip = &eim_chip;
for (i = 0; i < nr_irqs; i++) {
set_irq_chip(sm->eim_first_irq + i, &eim_chip);
set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip,
handle_edge_irq);
set_irq_chip_data(sm->eim_first_irq + i, sm);
}
......
......@@ -136,3 +136,7 @@ void __init init_IRQ(void)
panic("Interrupt controller initialization failed!\n");
}
unsigned long intc_get_pending(int group)
{
return intc_readl(&intc0, INTREQ0 + 4 * group);
}
......@@ -25,27 +25,98 @@ struct pio_device {
void __iomem *regs;
const struct platform_device *pdev;
struct clk *clk;
u32 alloc_mask;
u32 pinmux_mask;
char name[32];
};
static struct pio_device pio_dev[MAX_NR_PIO_DEVICES];
void portmux_set_func(unsigned int portmux_id, unsigned int pin_id,
unsigned int function_id)
static struct pio_device *gpio_to_pio(unsigned int gpio)
{
struct pio_device *pio;
u32 mask = 1 << pin_id;
unsigned int index;
BUG_ON(portmux_id >= MAX_NR_PIO_DEVICES);
index = gpio >> 5;
if (index >= MAX_NR_PIO_DEVICES)
return NULL;
pio = &pio_dev[index];
if (!pio->regs)
return NULL;
pio = &pio_dev[portmux_id];
return pio;
}
/* Pin multiplexing API */
void __init at32_select_periph(unsigned int pin, unsigned int periph,
unsigned long flags)
{
struct pio_device *pio;
unsigned int pin_index = pin & 0x1f;
u32 mask = 1 << pin_index;
pio = gpio_to_pio(pin);
if (unlikely(!pio)) {
printk("pio: invalid pin %u\n", pin);
goto fail;
}
if (function_id)
if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) {
printk("%s: pin %u is busy\n", pio->name, pin_index);
goto fail;
}
pio_writel(pio, PUER, mask);
if (periph)
pio_writel(pio, BSR, mask);
else
pio_writel(pio, ASR, mask);
pio_writel(pio, PDR, mask);
if (!(flags & AT32_GPIOF_PULLUP))
pio_writel(pio, PUDR, mask);
return;
fail:
dump_stack();
}
void __init at32_select_gpio(unsigned int pin, unsigned long flags)
{
struct pio_device *pio;
unsigned int pin_index = pin & 0x1f;
u32 mask = 1 << pin_index;
pio = gpio_to_pio(pin);
if (unlikely(!pio)) {
printk("pio: invalid pin %u\n", pin);
goto fail;
}
if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) {
printk("%s: pin %u is busy\n", pio->name, pin_index);
goto fail;
}
pio_writel(pio, PUER, mask);
if (flags & AT32_GPIOF_HIGH)
pio_writel(pio, SODR, mask);
else
pio_writel(pio, CODR, mask);
if (flags & AT32_GPIOF_OUTPUT)
pio_writel(pio, OER, mask);
else
pio_writel(pio, ODR, mask);
pio_writel(pio, PER, mask);
if (!(flags & AT32_GPIOF_PULLUP))
pio_writel(pio, PUDR, mask);
return;
fail:
dump_stack();
}
static int __init pio_probe(struct platform_device *pdev)
......
/*
* System Manager driver for AT32AP CPUs
*
* Copyright (C) 2006 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <asm/intc.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/arch/sm.h>
#include "sm.h"
#define SM_EIM_IRQ_RESOURCE 1
#define SM_PM_IRQ_RESOURCE 2
#define SM_RTC_IRQ_RESOURCE 3
#define to_eim(irqc) container_of(irqc, struct at32_sm, irqc)
struct at32_sm system_manager;
int __init at32_sm_init(void)
{
struct resource *regs;
struct at32_sm *sm = &system_manager;
int ret = -ENXIO;
regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
if (!regs)
goto fail;
spin_lock_init(&sm->lock);
sm->pdev = &at32_sm_device;
ret = -ENOMEM;
sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
if (!sm->regs)
goto fail;
return 0;
fail:
printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
return ret;
}
/*
* External Interrupt Module (EIM).
*
* EIM gets level- or edge-triggered interrupts of either polarity
* from the outside and converts it to active-high level-triggered
* interrupts that the internal interrupt controller can handle. EIM
* also provides masking/unmasking of interrupts, as well as
* acknowledging of edge-triggered interrupts.
*/
static irqreturn_t spurious_eim_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
{
printk(KERN_WARNING "Spurious EIM interrupt %d\n", irq);
disable_irq(irq);
return IRQ_NONE;
}
static struct irqaction eim_spurious_action = {
.handler = spurious_eim_interrupt,
};
static irqreturn_t eim_handle_irq(int irq, void *dev_id, struct pt_regs *regs)
{
struct irq_controller * irqc = dev_id;
struct at32_sm *sm = to_eim(irqc);
unsigned long pending;
/*
* No need to disable interrupts globally. The interrupt
* level relevant to this group must be masked all the time,
* so we know that this particular EIM instance will not be
* re-entered.
*/
spin_lock(&sm->lock);
pending = intc_get_pending(sm->irqc.irq_group);
if (unlikely(!pending)) {
printk(KERN_ERR "EIM (group %u): No interrupts pending!\n",
sm->irqc.irq_group);
goto unlock;
}
do {
struct irqaction *action;
unsigned int i;
i = fls(pending) - 1;
pending &= ~(1 << i);
action = sm->action[i];
/* Acknowledge the interrupt */
sm_writel(sm, EIM_ICR, 1 << i);
spin_unlock(&sm->lock);
if (action->flags & SA_INTERRUPT)
local_irq_disable();
action->handler(sm->irqc.first_irq + i, action->dev_id, regs);
local_irq_enable();
spin_lock(&sm->lock);
if (action->flags & SA_SAMPLE_RANDOM)
add_interrupt_randomness(sm->irqc.first_irq + i);
} while (pending);
unlock:
spin_unlock(&sm->lock);
return IRQ_HANDLED;
}
static void eim_mask(struct irq_controller *irqc, unsigned int irq)
{
struct at32_sm *sm = to_eim(irqc);
unsigned int i;
i = irq - sm->irqc.first_irq;
sm_writel(sm, EIM_IDR, 1 << i);
}
static void eim_unmask(struct irq_controller *irqc, unsigned int irq)
{
struct at32_sm *sm = to_eim(irqc);
unsigned int i;
i = irq - sm->irqc.first_irq;
sm_writel(sm, EIM_IER, 1 << i);
}
static int eim_setup(struct irq_controller *irqc, unsigned int irq,
struct irqaction *action)
{
struct at32_sm *sm = to_eim(irqc);
sm->action[irq - sm->irqc.first_irq] = action;
/* Acknowledge earlier interrupts */
sm_writel(sm, EIM_ICR, (1<<(irq - sm->irqc.first_irq)));
eim_unmask(irqc, irq);
return 0;
}
static void eim_free(struct irq_controller *irqc, unsigned int irq,
void *dev)
{
struct at32_sm *sm = to_eim(irqc);
eim_mask(irqc, irq);
sm->action[irq - sm->irqc.first_irq] = &eim_spurious_action;
}
static int eim_set_type(struct irq_controller *irqc, unsigned int irq,
unsigned int type)
{
struct at32_sm *sm = to_eim(irqc);
unsigned long flags;
u32 value, pattern;
spin_lock_irqsave(&sm->lock, flags);
pattern = 1 << (irq - sm->irqc.first_irq);
value = sm_readl(sm, EIM_MODE);
if (type & IRQ_TYPE_LEVEL)
value |= pattern;
else
value &= ~pattern;
sm_writel(sm, EIM_MODE, value);
value = sm_readl(sm, EIM_EDGE);
if (type & IRQ_EDGE_RISING)
value |= pattern;
else
value &= ~pattern;
sm_writel(sm, EIM_EDGE, value);
value = sm_readl(sm, EIM_LEVEL);
if (type & IRQ_LEVEL_HIGH)
value |= pattern;
else
value &= ~pattern;
sm_writel(sm, EIM_LEVEL, value);
spin_unlock_irqrestore(&sm->lock, flags);
return 0;
}
static unsigned int eim_get_type(struct irq_controller *irqc,
unsigned int irq)
{
struct at32_sm *sm = to_eim(irqc);
unsigned long flags;
unsigned int type = 0;
u32 mode, edge, level, pattern;
pattern = 1 << (irq - sm->irqc.first_irq);
spin_lock_irqsave(&sm->lock, flags);
mode = sm_readl(sm, EIM_MODE);
edge = sm_readl(sm, EIM_EDGE);
level = sm_readl(sm, EIM_LEVEL);
spin_unlock_irqrestore(&sm->lock, flags);
if (mode & pattern)
type |= IRQ_TYPE_LEVEL;
if (edge & pattern)
type |= IRQ_EDGE_RISING;
if (level & pattern)
type |= IRQ_LEVEL_HIGH;
return type;
}
static struct irq_controller_class eim_irq_class = {
.typename = "EIM",
.handle = eim_handle_irq,
.setup = eim_setup,
.free = eim_free,
.mask = eim_mask,
.unmask = eim_unmask,
.set_type = eim_set_type,
.get_type = eim_get_type,
};
static int __init eim_init(void)
{
struct at32_sm *sm = &system_manager;
unsigned int i;
u32 pattern;
int ret;
/*
* The EIM is really the same module as SM, so register
* mapping, etc. has been taken care of already.
*/
/*
* Find out how many interrupt lines that are actually
* implemented in hardware.
*/
sm_writel(sm, EIM_IDR, ~0UL);
sm_writel(sm, EIM_MODE, ~0UL);
pattern = sm_readl(sm, EIM_MODE);
sm->irqc.nr_irqs = fls(pattern);
ret = -ENOMEM;
sm->action = kmalloc(sizeof(*sm->action) * sm->irqc.nr_irqs,
GFP_KERNEL);
if (!sm->action)
goto out;
for (i = 0; i < sm->irqc.nr_irqs; i++)
sm->action[i] = &eim_spurious_action;
spin_lock_init(&sm->lock);
sm->irqc.irq_group = sm->pdev->resource[SM_EIM_IRQ_RESOURCE].start;
sm->irqc.class = &eim_irq_class;
ret = intc_register_controller(&sm->irqc);
if (ret < 0)
goto out_free_actions;
printk("EIM: External Interrupt Module at 0x%p, IRQ group %u\n",
sm->regs, sm->irqc.irq_group);
printk("EIM: Handling %u external IRQs, starting with IRQ%u\n",
sm->irqc.nr_irqs, sm->irqc.first_irq);
return 0;
out_free_actions:
kfree(sm->action);
out:
return ret;
}
arch_initcall(eim_init);
/*
* Pin definitions for AT32AP7000.
*
* Copyright (C) 2006 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_AT32AP7000_H__
#define __ASM_ARCH_AT32AP7000_H__
#define GPIO_PERIPH_A 0
#define GPIO_PERIPH_B 1
#define NR_GPIO_CONTROLLERS 4
/*
* Pin numbers identifying specific GPIO pins on the chip. They can
* also be converted to IRQ numbers by passing them through
* gpio_to_irq().
*/
#define GPIO_PIOA_BASE (0)
#define GPIO_PIOB_BASE (GPIO_PIOA_BASE + 32)
#define GPIO_PIOC_BASE (GPIO_PIOB_BASE + 32)
#define GPIO_PIOD_BASE (GPIO_PIOC_BASE + 32)
#define GPIO_PIN_PA(N) (GPIO_PIOA_BASE + (N))
#define GPIO_PIN_PB(N) (GPIO_PIOB_BASE + (N))
#define GPIO_PIN_PC(N) (GPIO_PIOC_BASE + (N))
#define GPIO_PIN_PD(N) (GPIO_PIOD_BASE + (N))
#endif /* __ASM_ARCH_AT32AP7000_H__ */
......@@ -21,10 +21,7 @@ void at32_map_usart(unsigned int hw_id, unsigned int line);
struct platform_device *at32_add_device_usart(unsigned int id);
struct eth_platform_data {
u8 valid;
u8 mii_phy_addr;
u8 is_rmii;
u8 hw_addr[6];
};
struct platform_device *
at32_add_device_eth(unsigned int id, struct eth_platform_data *data);
......
......@@ -7,10 +7,20 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_AVR32_AT32_PORTMUX_H__
#define __ASM_AVR32_AT32_PORTMUX_H__
#ifndef __ASM_ARCH_PORTMUX_H__
#define __ASM_ARCH_PORTMUX_H__
void portmux_set_func(unsigned int portmux_id, unsigned int pin_id,
unsigned int function_id);
/*
* Set up pin multiplexing, called from board init only.
*
* The following flags determine the initial state of the pin.
*/
#define AT32_GPIOF_PULLUP 0x00000001 /* Enable pull-up */
#define AT32_GPIOF_OUTPUT 0x00000002 /* Enable output driver */
#define AT32_GPIOF_HIGH 0x00000004 /* Set output high */
void at32_select_periph(unsigned int pin, unsigned int periph,
unsigned long flags);
void at32_select_gpio(unsigned int pin, unsigned long flags);
#endif /* __ASM_AVR32_AT32_PORTMUX_H__ */
#endif /* __ASM_ARCH_PORTMUX_H__ */
......@@ -109,7 +109,7 @@ static inline dma_addr_t
dma_map_single(struct device *dev, void *cpu_addr, size_t size,
enum dma_data_direction direction)
{
dma_cache_sync(cpu_addr, size, direction);
dma_cache_sync(dev, cpu_addr, size, direction);
return virt_to_bus(cpu_addr);
}
......@@ -211,7 +211,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
sg[i].dma_address = page_to_bus(sg[i].page) + sg[i].offset;
virt = page_address(sg[i].page) + sg[i].offset;
dma_cache_sync(virt, sg[i].length, direction);
dma_cache_sync(dev, virt, sg[i].length, direction);
}
return nents;
......@@ -256,14 +256,14 @@ static inline void
dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction direction)
{
dma_cache_sync(bus_to_virt(dma_handle), size, direction);
dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction);
}
static inline void
dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction direction)
{
dma_cache_sync(bus_to_virt(dma_handle), size, direction);
dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction);
}
/**
......@@ -286,7 +286,7 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int i;
for (i = 0; i < nents; i++) {
dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset,
sg[i].length, direction);
}
}
......@@ -298,7 +298,7 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int i;
for (i = 0; i < nents; i++) {
dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset,
sg[i].length, direction);
}
}
......
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