| Message ID | 1357564126-13275-2-git-send-email-rajeshwari.s@samsung.com |
|---|---|
| State | New |
| Headers | show |
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
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 */ +void power_ps_hold_setup(void); + +/* Read the resume function and call it */ +void power_exit_wakeup(void); #endif
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(-)