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rk29sdk: better support power on/off

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黄涛
2011-04-07 12:18:26 +08:00
parent 915f8b9eae
commit 4588e5e2a5
5 changed files with 72 additions and 26 deletions
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4
arch/arm/mach-rk29/Makefile
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@@ -8,8 +8,8 @@ obj-$(CONFIG_USB_GADGET) += usb_detect.o
obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_RK29_VPU) += vpu.o vpu_mem.o
obj-$(CONFIG_MACH_RK29SDK) += board-rk29sdk.o board-rk29sdk-key.o board-rk29sdk-rfkill.o
obj-$(CONFIG_MACH_RK29SDK_DDR3) += board-rk29-ddr3sdk.o board-rk29sdk-key.o board-rk29sdk-rfkill.o
obj-$(CONFIG_MACH_RK29SDK) += board-rk29sdk.o board-rk29sdk-key.o board-rk29sdk-rfkill.o board-rk29sdk-power.o
obj-$(CONFIG_MACH_RK29SDK_DDR3) += board-rk29-ddr3sdk.o board-rk29sdk-key.o board-rk29sdk-rfkill.o board-rk29sdk-power.o
obj-$(CONFIG_MACH_RK29WINACCORD) += board-rk29-winaccord.o board-rk29sdk-key.o
obj-$(CONFIG_MACH_RK29_AIGO) += board-rk29-aigo.o board-rk29aigo-key.o board-rk29sdk-rfkill.o
obj-$(CONFIG_MACH_RK29_MALATA) += board-malata.o board-rk29malata-key.o board-rk29sdk-rfkill.o

13
arch/arm/mach-rk29/board-rk29-ddr3sdk.c
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@@ -1874,22 +1874,11 @@ static void __init machine_rk29_init_irq(void)
rk29_gpio_init();
}
#define POWER_ON_PIN RK29_PIN4_PA4
static void rk29_pm_power_off(void)
{
printk(KERN_ERR "rk29_pm_power_off start...\n");
gpio_direction_output(POWER_ON_PIN, GPIO_LOW);
while (1);
}
static void __init machine_rk29_board_init(void)
{
rk29_board_iomux_init();
gpio_request(POWER_ON_PIN,"poweronpin");
gpio_set_value(POWER_ON_PIN, GPIO_HIGH);
gpio_direction_output(POWER_ON_PIN, GPIO_HIGH);
pm_power_off = rk29_pm_power_off;
board_power_init();
platform_add_devices(devices, ARRAY_SIZE(devices));
#ifdef CONFIG_I2C0_RK29

67
arch/arm/mach-rk29/board-rk29sdk-power.c Normal file
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@@ -0,0 +1,67 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/pm.h>
#include <mach/rk29_iomap.h>
#include <mach/gpio.h>
#include <mach/cru.h>
#define POWER_ON_PIN RK29_PIN4_PA4
#define PLAY_ON_PIN RK29_PIN6_PA7
static void rk29_pm_power_off(void)
{
int count = 0;
local_irq_disable();
local_fiq_disable();
printk(KERN_ERR "rk29_pm_power_off start...\n");
/* arm enter slow mode */
cru_writel((cru_readl(CRU_MODE_CON) & ~CRU_CPU_MODE_MASK) | CRU_CPU_MODE_SLOW, CRU_MODE_CON);
LOOP(LOOPS_PER_USEC);
while (1) {
/* shut down the power by GPIO. */
if (gpio_get_value(POWER_ON_PIN) == GPIO_HIGH) {
printk("POWER_ON_PIN is high\n");
gpio_set_value(POWER_ON_PIN, GPIO_LOW);
}
LOOP(5 * LOOPS_PER_MSEC);
/* only normal power off can restart system safely */
if (system_state != SYSTEM_POWER_OFF)
continue;
if (gpio_get_value(PLAY_ON_PIN) != GPIO_HIGH) {
if (!count)
printk("PLAY_ON_PIN is low\n");
if (50 == count) /* break if keep low about 250ms */
break;
count++;
} else {
count = 0;
}
}
printk("system reboot\n");
gpio_set_value(POWER_ON_PIN, GPIO_HIGH);
system_state = SYSTEM_RESTART;
arm_pm_restart(0, NULL);
while (1);
}
int __init board_power_init(void)
{
gpio_request(POWER_ON_PIN, "poweronpin");
gpio_set_value(POWER_ON_PIN, GPIO_HIGH);
gpio_direction_output(POWER_ON_PIN, GPIO_HIGH);
pm_power_off = rk29_pm_power_off;
return 0;
}

13
arch/arm/mach-rk29/board-rk29sdk.c
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@@ -1896,22 +1896,11 @@ static void __init machine_rk29_init_irq(void)
rk29_gpio_init();
}
#define POWER_ON_PIN RK29_PIN4_PA4
static void rk29_pm_power_off(void)
{
printk(KERN_ERR "rk29_pm_power_off start...\n");
gpio_direction_output(POWER_ON_PIN, GPIO_LOW);
while (1);
}
static void __init machine_rk29_board_init(void)
{
rk29_board_iomux_init();
gpio_request(POWER_ON_PIN,"poweronpin");
gpio_set_value(POWER_ON_PIN, GPIO_HIGH);
gpio_direction_output(POWER_ON_PIN, GPIO_HIGH);
pm_power_off = rk29_pm_power_off;
board_power_init();
platform_add_devices(devices, ARRAY_SIZE(devices));
#ifdef CONFIG_I2C0_RK29

1
arch/arm/mach-rk29/include/mach/board.h
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@@ -234,6 +234,7 @@ struct tca6424_platform_data {
void __init rk29_setup_early_printk(void);
void __init rk29_map_common_io(void);
void __init rk29_clock_init(void);
void __init board_power_init(void);
#define BOOT_MODE_NORMAL 0
#define BOOT_MODE_FACTORY2 1