[U-Boot] [PATCH 2/9 v9] EXYNOS5: Implement board_poweroff for Thermal Management Unit
Minkyu Kang
mk7.kang at samsung.com
Wed Feb 20 09:38:25 CET 2013
Dear Akshay,
On 06/02/13 22:18, Akshay Saraswat wrote:
> Adding API in power for system shutdown when tripping value is reached
> in Exynos Thermal Management Unit.
>
> Signed-off-by: Akshay Saraswat <akshay.s at samsung.com>
> Acked-by: Simon Glass <sjg at chromium.org>
> ---
> Changes since v8:
> - None.
>
> arch/arm/cpu/armv7/exynos/power.c | 15 +++++++++++++++
> arch/arm/include/asm/arch-exynos/power.h | 1 +
> 2 files changed, 16 insertions(+)
>
> diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
> index d4bce6d..73f764e 100644
> --- a/arch/arm/cpu/armv7/exynos/power.c
> +++ b/arch/arm/cpu/armv7/exynos/power.c
> @@ -95,3 +95,18 @@ void set_dp_phy_ctrl(unsigned int enable)
> if (cpu_is_exynos5())
> exynos5_dp_phy_control(enable);
> }
> +
> +/*
> + * This function never returns.
> + * When called this function makes system hang and PAD driving value high
> + * which in turn makes system power down.
> + */
> +void board_poweroff(void)
> +{
> + struct exynos5_power *power =
> + (struct exynos5_power *)samsung_get_base_power();
> +
> + clrbits_le32(&power->ps_hold_control, POWER_PS_HOLD_CONTROL_DATA_HIGH);
> +
> + hang();
> +}
We can use set_ps_hold_ctrl function with little modification.
Could you please check this?
Thanks,
Minkyu Kang.
More information about the U-Boot
mailing list