diff options
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/cru_rk3288.h | 12 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/rk3288-board.c | 39 |
2 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h index c7e21bd..79a6d6d 100644 --- a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h +++ b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h @@ -220,4 +220,16 @@ enum { CLKF_MASK = 0x1fff << CLKF_SHIFT, }; +/* CRU_GLB_RST_ST */ +enum { + GLB_POR_RST, + FST_GLB_RST_ST = BIT(0), + SND_GLB_RST_ST = BIT(1), + FST_GLB_TSADC_RST_ST = BIT(2), + SND_GLB_TSADC_RST_ST = BIT(3), + FST_GLB_WDT_RST_ST = BIT(4), + SND_GLB_WDT_RST_ST = BIT(5), + GLB_RST_ST_MASK = GENMASK(5, 0), +}; + #endif diff --git a/arch/arm/mach-rockchip/rk3288-board.c b/arch/arm/mach-rockchip/rk3288-board.c index 74c6cc1..278bb40 100644 --- a/arch/arm/mach-rockchip/rk3288-board.c +++ b/arch/arm/mach-rockchip/rk3288-board.c @@ -11,6 +11,7 @@ #include <syscon.h> #include <asm/io.h> #include <asm/arch/clock.h> +#include <asm/arch/cru_rk3288.h> #include <asm/arch/periph.h> #include <asm/arch/pmu_rk3288.h> #include <asm/arch/qos_rk3288.h> @@ -70,10 +71,48 @@ int rk3288_qos_init(void) return 0; } +static void rk3288_detect_reset_reason(void) +{ + struct rk3288_cru *cru = rockchip_get_cru(); + const char *reason; + + if (IS_ERR(cru)) + return; + + switch (cru->cru_glb_rst_st) { + case GLB_POR_RST: + reason = "POR"; + break; + case FST_GLB_RST_ST: + case SND_GLB_RST_ST: + reason = "RST"; + break; + case FST_GLB_TSADC_RST_ST: + case SND_GLB_TSADC_RST_ST: + reason = "THERMAL"; + break; + case FST_GLB_WDT_RST_ST: + case SND_GLB_WDT_RST_ST: + reason = "WDOG"; + break; + default: + reason = "unknown reset"; + } + + env_set("reset_reason", reason); + + /* + * Clear cru_glb_rst_st, so we can determine the last reset cause + * for following resets. + */ + rk_clrreg(&cru->cru_glb_rst_st, GLB_RST_ST_MASK); +} + int board_late_init(void) { setup_boot_mode(); rk3288_qos_init(); + rk3288_detect_reset_reason(); return rk_board_late_init(); } |