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Then you could get "Reset cause: WARM-WDG" when issue reset in U-Boot. Reviewed-by: Ye Li Signed-off-by: Peng Fan --- arch/arm/mach-imx/imx8ulp/soc.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c index 0728cb9847..9bdbe3c846 100644 --- a/arch/arm/mach-imx/imx8ulp/soc.c +++ b/arch/arm/mach-imx/imx8ulp/soc.c @@ -149,8 +149,6 @@ enum bt_mode get_boot_mode(void) #define CMC_SRS_POR BIT(1) #define CMC_SRS_WUP BIT(0) -static u32 reset_cause = -1; - static char *get_reset_cause(char *ret) { u32 cause1, cause = 0, srs = 0; @@ -163,9 +161,7 @@ static char *get_reset_cause(char *ret) srs = readl(reg_srs); cause1 = readl(reg_ssrs); - reset_cause = cause1; - - cause = cause1 & (CMC_SRS_POR | CMC_SRS_WUP | CMC_SRS_WARM); + cause = srs & (CMC_SRS_POR | CMC_SRS_WUP | CMC_SRS_WARM); switch (cause) { case CMC_SRS_POR: @@ -175,7 +171,7 @@ static char *get_reset_cause(char *ret) sprintf(ret, "%s", "WUP"); break; case CMC_SRS_WARM: - cause = cause1 & (CMC_SRS_WDG | CMC_SRS_SW | + cause = srs & (CMC_SRS_WDG | CMC_SRS_SW | CMC_SRS_JTAG_RST); switch (cause) { case CMC_SRS_WDG: @@ -193,7 +189,7 @@ static char *get_reset_cause(char *ret) } break; default: - sprintf(ret, "%s-%X", "UNKN", cause1); + sprintf(ret, "%s-%X", "UNKN", srs); break; } -- 2.30.0