From mboxrd@z Thu Jan  1 00:00:00 1970
From: Minkyu Kang <mk7.kang@samsung.com>
Date: Wed, 20 Feb 2013 17:38:25 +0900
Subject: [U-Boot] [PATCH 2/9 v9] EXYNOS5: Implement board_poweroff for
 Thermal Management Unit
In-Reply-To: <1360156726-13315-3-git-send-email-akshay.s@samsung.com>
References: <1360156726-13315-1-git-send-email-akshay.s@samsung.com>
	<1360156726-13315-3-git-send-email-akshay.s@samsung.com>
Message-ID: <51248B81.2040200@samsung.com>
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To: u-boot@lists.denx.de

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@samsung.com>
> Acked-by: Simon Glass <sjg@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.