[U-Boot] [PATCH 5/8] EXYNOS5: TMU: Add TMU status polling

[Simon Glass]

Hi Hatim,

On Tue, Nov 6, 2012 at 2:18 AM, Hatim Ali <hatim.rv at samsung.com> wrote:
> From: Akshay Saraswat <akshay.s at samsung.com>
>
> This adds call to tmu_init() and TMU status polling in board_poll_devices()
> funtion to monitor temperature change of the SOC.
>
> Signed-off-by: Akshay Saraswat <akshay.s at samsung.com>
>
> diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
> index ac7346d..19eb2e0 100644
> --- a/board/samsung/smdk5250/smdk5250.c
> +++ b/board/samsung/smdk5250/smdk5250.c
> @@ -32,15 +32,51 @@
>  #include <asm/arch/pinmux.h>
>  #include <asm/arch/sromc.h>
>  #include <pmic.h>
> +#include <asm/arch/exynos-tmu.h>
> +#include <asm/arch/power.h>
>
>  DECLARE_GLOBAL_DATA_PTR;
>
> +/*
> + * Polling various devices on board for details and status monitoring purposes
> + */
> +void board_poll_devices(void)
> +{
> +#if defined CONFIG_EXYNOS_TMU
> +       int temp;
> +
> +       switch (tmu_monitor(&temp)) {
> +       case TMU_STATUS_TRIPPED:
> +               puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
> +               power_shutdown();
> +               break;
> +       case TMU_STATUS_WARNING:
> +               puts("EXYNOS_TMU: WARNING! Temperature very high\n");
> +               break;
> +       case TMU_STATUS_INIT:
> +       case TMU_STATUS_NORMAL:
> +               debug("syetm is in normal temperature state\n");

typo: syetm

This probably doesn't add much - I suggest punting this line since
otherwise if you enable DEBUG in this file it will flood the console.

> +               break;
> +       default:
> +               debug("Unknown TMU state\n");
> +       }
> +#endif
> +}
> +
>  int board_init(void)
>  {
>         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
>  #if defined(CONFIG_PMIC)
>         pmic_init();
>  #endif
> +
> +#if defined CONFIG_EXYNOS_TMU
> +       if (tmu_init(gd->fdt_blob)) {
> +               debug("%s: Failed to init TMU\n", __func__);
> +               return -1;
> +       }
> +#endif
> +
>  #ifdef CONFIG_EXYNOS_SPI
>         spi_init();
>  #endif
> --
> 1.7.2.3
>

Regards,
Simon