imx: imx8: print reset cause
Add support for printing reset cause during boot.
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 39ac0bc..0b91e44 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -45,6 +45,45 @@
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 @@
break;
}
+ printf("Reset cause: %s\n", get_reset_cause());
+
return 0;
}