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EXYNOS: Add API for power reset and exit wakeup

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This patch adds APIs to get power reset status and exit the wakeup condition for
both exynos5 and exynos4

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Rajeshwari Shinde 2013-07-04 12:29:14 +05:30 committed by Minkyu Kang
parent 493c073ff4
commit dc20fdd76a
2 changed files with 62 additions and 0 deletions
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50
arch/arm/cpu/armv7/exynos/power.c
View File

@ -140,3 +140,53 @@ void set_hw_thermal_trip(void)
setbits_le32(&power->ps_hold_control, POWER_ENABLE_HW_TRIP);
}
}
static uint32_t exynos5_get_reset_status(void)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
return power->inform1;
}
static uint32_t exynos4_get_reset_status(void)
{
struct exynos4_power *power =
(struct exynos4_power *)samsung_get_base_power();
return power->inform1;
}
uint32_t get_reset_status(void)
{
if (cpu_is_exynos5())
return exynos5_get_reset_status();
else
return exynos4_get_reset_status();
}
static void exynos5_power_exit_wakeup(void)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
typedef void (*resume_func)(void);
((resume_func)power->inform0)();
}
static void exynos4_power_exit_wakeup(void)
{
struct exynos4_power *power =
(struct exynos4_power *)samsung_get_base_power();
typedef void (*resume_func)(void);
((resume_func)power->inform0)();
}
void power_exit_wakeup(void)
{
if (cpu_is_exynos5())
exynos5_power_exit_wakeup();
else
exynos4_power_exit_wakeup();
}

12
arch/arm/include/asm/arch-exynos/power.h
View File

@ -888,4 +888,16 @@ void set_ps_hold_ctrl(void);
* source as XXTI
*/
void set_xclkout(void);
/*
* Read inform1 to get the reset status.
* @return: the value can be either S5P_CHECK_SLEEP or
* S5P_CHECK_DIDLE or S5P_CHECK_LPA as stored in inform1
* if none of these then its normal booting.
*/
uint32_t get_reset_status(void);
/* Read the resume function and call it */
void power_exit_wakeup(void);
#endif