Add support for printing reset cause during boot.
Signed-off-by: Igor Opaniuk igor.opaniuk@foundries.io ---
arch/arm/mach-imx/imx8/cpu.c | 41 ++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+)
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c index 39ac0bc4140..0b91e448a5d 100644 --- a/arch/arm/mach-imx/imx8/cpu.c +++ b/arch/arm/mach-imx/imx8/cpu.c @@ -45,6 +45,45 @@ struct pass_over_info_t *get_pass_over_info(void) return p; }
+static char *get_reset_cause(void) +{ + sc_pm_reset_reason_t reason; + + if (sc_pm_reset_reason(-1, &reason) != SC_ERR_NONE) + return "Unknown reset"; + + switch (reason) { + case SC_PM_RESET_REASON_POR: + return "POR"; + case SC_PM_RESET_REASON_JTAG: + return "JTAG reset "; + case SC_PM_RESET_REASON_SW: + return "Software reset"; + case SC_PM_RESET_REASON_WDOG: + return "Watchdog reset"; + case SC_PM_RESET_REASON_LOCKUP: + return "SCU lockup reset"; + case SC_PM_RESET_REASON_SNVS: + return "SNVS reset"; + case SC_PM_RESET_REASON_TEMP: + return "Temp panic reset"; + case SC_PM_RESET_REASON_MSI: + return "MSI reset"; + case SC_PM_RESET_REASON_UECC: + return "ECC reset"; + case SC_PM_RESET_REASON_SCFW_WDOG: + return "SCFW watchdog reset"; + case SC_PM_RESET_REASON_ROM_WDOG: + return "SCU ROM watchdog reset"; + case SC_PM_RESET_REASON_SECO: + return "SECO reset"; + case SC_PM_RESET_REASON_SCFW_FAULT: + return "SCFW fault reset"; + default: + return "Unknown reset"; + } +} + int arch_cpu_init(void) { #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_RECOVER_DATA_SECTION) @@ -322,6 +361,8 @@ int print_bootinfo(void) break; }
+ printf("Reset cause: %s\n", get_reset_cause()); + return 0; }