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| author | Akshay Saraswat <akshay.s@samsung.com> | 2013-02-25 01:13:02 +0000 |
|---|---|---|
| committer | Minkyu Kang <mk7.kang@samsung.com> | 2013-03-12 17:06:09 +0900 |
| commit | 7e30ad8bf3c6f7768158ad994b9180c6906fa5da (patch) | |
| tree | 286e38465a3a30fa9a7cce405cde1b3f3401adcf /board | |
| parent | 618766c09855f7167f510eafa89172ae44cae543 (diff) | |
| download | u-boot-imx-7e30ad8bf3c6f7768158ad994b9180c6906fa5da.zip u-boot-imx-7e30ad8bf3c6f7768158ad994b9180c6906fa5da.tar.gz u-boot-imx-7e30ad8bf3c6f7768158ad994b9180c6906fa5da.tar.bz2 | |
Exynos5: TMU: Add TMU init and status check
This adds call to tmu_init() and TMU boot time analysis
for the SoC temperature threshold breach.
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/samsung/smdk5250/smdk5250.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index 0097b3f..217c6df 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -37,9 +37,39 @@ #include <asm/arch/dp_info.h> #include <power/pmic.h> #include <power/max77686_pmic.h> +#include <tmu.h> DECLARE_GLOBAL_DATA_PTR; +#if defined CONFIG_EXYNOS_TMU +/* + * Boot Time Thermal Analysis for SoC temperature threshold breach + */ +static void boot_temp_check(void) +{ + int temp; + + switch (tmu_monitor(&temp)) { + /* Status TRIPPED ans WARNING means corresponding threshold breach */ + case TMU_STATUS_TRIPPED: + puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n"); + set_ps_hold_ctrl(); + hang(); + break; + case TMU_STATUS_WARNING: + puts("EXYNOS_TMU: WARNING! Temperature very high\n"); + break; + /* + * TMU_STATUS_INIT means something is wrong with temperature sensing + * and TMU status was changed back from NORMAL to INIT. + */ + case TMU_STATUS_INIT: + default: + debug("EXYNOS_TMU: Unknown TMU state\n"); + } +} +#endif + #ifdef CONFIG_USB_EHCI_EXYNOS int board_usb_vbus_init(void) { @@ -71,6 +101,15 @@ static void board_enable_audio_codec(void) int board_init(void) { gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL); + +#if defined CONFIG_EXYNOS_TMU + if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) { + debug("%s: Failed to init TMU\n", __func__); + return -1; + } + boot_temp_check(); +#endif + #ifdef CONFIG_EXYNOS_SPI spi_init(); #endif |