Hi Rajeshwari,
On Mon, Jan 7, 2013 at 5:08 AM, Rajeshwari Shinde rajeshwari.s@samsung.com wrote:
This patch adds functions to intialsise power registers during spl boot.
Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com
Changes in V2: - Moved from second patch to first patch - Renamed ps_hold_setup to power_ps_hold_setup - Added explanation before each power function definition arch/arm/cpu/armv7/exynos/power.c | 27 +++++++++++++++++++++++++++ arch/arm/include/asm/arch-exynos/power.h | 10 ++++++++++ 2 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c index d4bce6d..f0c107c 100644 --- a/arch/arm/cpu/armv7/exynos/power.c +++ b/arch/arm/cpu/armv7/exynos/power.c @@ -95,3 +95,30 @@ void set_dp_phy_ctrl(unsigned int enable) if (cpu_is_exynos5()) exynos5_dp_phy_control(enable); }
+uint32_t power_read_reset_status(void) +{
struct exynos5_power *power =(struct exynos5_power *)samsung_get_base_power();return power->inform1;+}
+void power_ps_hold_setup(void) +{
struct exynos5_power *power =(struct exynos5_power *)samsung_get_base_power();/* Set PS-Hold high */setbits_le32(&power->ps_hold_control,EXYNOS_PS_HOLD_CONTROL_DATA_HIGH);+}
+void power_exit_wakeup(void) +{
struct exynos5_power *power =(struct exynos5_power *)samsung_get_base_power();typedef void (*resume_func)(void);((resume_func)power->inform0)();+} diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h index d2fdb59..f6d0278 100644 --- a/arch/arm/include/asm/arch-exynos/power.h +++ b/arch/arm/include/asm/arch-exynos/power.h @@ -864,4 +864,14 @@ void set_dp_phy_ctrl(unsigned int enable);
#define EXYNOS_DP_PHY_ENABLE (1 << 0)
+#define EXYNOS_PS_HOLD_CONTROL_DATA_HIGH (1 << 8)
+/* Read inform1 to get the reset status */ +uint32_t power_read_reset_status(void);
+/*Set ps_hold data drving value high */
driving
While you are there I suggest you add that this enables the machine to stay powered on after the initial power-on condition goes away (e.g. power button).
+void power_ps_hold_setup(void);
+/* Read the resume function and call it */ +void power_exit_wakeup(void);
#endif
1.7.4.4
Regards, Simon