From patchwork Tue Jan 15 10:25:45 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [U-Boot,1/2] EXYNOS5: Add function to setup set ps hold Date: Tue, 15 Jan 2013 00:25:45 -0000 From: Rajeshwari Shinde X-Patchwork-Id: 212067 Message-Id: <1358245546-10035-2-git-send-email-rajeshwari.s@samsung.com> To: u-boot@lists.denx.de Cc: patches@linaro.org This patch adds a function to set ps_hold data driving value high. This enables the machine to stay powered on after the initial power-on condition goes away(e.g. power button). Signed-off-by: Rajeshwari Shinde Acked-by: Simon Glass --- arch/arm/cpu/armv7/exynos/power.c | 10 ++++++++++ arch/arm/include/asm/arch-exynos/power.h | 8 ++++++++ 2 files changed, 18 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c index d4bce6d..8572cfd 100644 --- a/arch/arm/cpu/armv7/exynos/power.c +++ b/arch/arm/cpu/armv7/exynos/power.c @@ -95,3 +95,13 @@ void set_dp_phy_ctrl(unsigned int enable) if (cpu_is_exynos5()) exynos5_dp_phy_control(enable); } + +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); +} diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h index d2fdb59..85e2cd9 100644 --- a/arch/arm/include/asm/arch-exynos/power.h +++ b/arch/arm/include/asm/arch-exynos/power.h @@ -864,4 +864,12 @@ void set_dp_phy_ctrl(unsigned int enable); #define EXYNOS_DP_PHY_ENABLE (1 << 0) +#define EXYNOS_PS_HOLD_CONTROL_DATA_HIGH (1 << 8) + +/*Set ps_hold data driving value high + * 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); #endif