[U-Boot] [PATCH 4/9 v8] EXYNOS5: TMU: Add TMU init and status check
Akshay Saraswat
akshay.s at samsung.com
Tue Feb 5 12:57:12 CET 2013
This adds call to tmu_init() and TMU boot time analysis
for the SoC temperature threshold breach.
Signed-off-by: Akshay Saraswat <akshay.s at samsung.com>
Acked-by: Simon Glass <sjg at chromium.org>
---
Changes since v7:
- None.
board/samsung/smdk5250/smdk5250.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index 7a5f132..7b9a8c5 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -35,9 +35,35 @@
#include <asm/arch/sromc.h>
#include <asm/arch/dp_info.h>
#include <power/pmic.h>
+#include <tmu.h>
DECLARE_GLOBAL_DATA_PTR;
+#if defined CONFIG_EXYNOS_TMU
+/*
+ * Boot Time Thermal Analysis for SoC temperature threshold breach
+ */
+void boot_temp_check(void)
+{
+ int temp;
+
+ switch (tmu_monitor(&temp)) {
+ case TMU_STATUS_TRIPPED:
+ puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
+ board_poweroff();
+ break;
+ case TMU_STATUS_WARNING:
+ puts("EXYNOS_TMU: WARNING! Temperature very high\n");
+ break;
+ case TMU_STATUS_NORMAL:
+ break;
+ case TMU_STATUS_INIT:
+ default:
+ debug("Unknown TMU state\n");
+ }
+}
+#endif
+
#ifdef CONFIG_USB_EHCI_EXYNOS
int board_usb_vbus_init(void)
{
@@ -57,6 +83,15 @@ int board_usb_vbus_init(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)) {
+ debug("%s: Failed to init TMU\n", __func__);
+ return -1;
+ }
+ boot_temp_check();
+#endif
+
#ifdef CONFIG_EXYNOS_SPI
spi_init();
#endif
--
1.7.9.5
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