From: Dominik Sliwa dominik.sliwa@toradex.com
Display proper reset reason after the SoC info.
Reviewed-by: Oleksandr Suvorov oleksandr.suvorov@toradex.com Signed-off-by: Dominik Sliwa dominik.sliwa@toradex.com Signed-off-by: Igor Opaniuk igor.opaniuk@toradex.com ---
arch/arm/mach-tegra/sys_info.c | 32 ++++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-)
diff --git a/arch/arm/mach-tegra/sys_info.c b/arch/arm/mach-tegra/sys_info.c index 9975f33e0b..5dc998a52b 100644 --- a/arch/arm/mach-tegra/sys_info.c +++ b/arch/arm/mach-tegra/sys_info.c @@ -6,24 +6,36 @@
#include <common.h> #include <linux/ctype.h> +#if defined(CONFIG_TEGRA124) || defined(CONFIG_TEGRA30) +#include <asm/arch-tegra/pmc.h>
-static void upstring(char *s) +static char *get_reset_cause(void) { - while (*s) { - *s = toupper(*s); - s++; + struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; + + switch (pmc->pmc_reset_status) { + case 0x00: + return "POR"; + case 0x01: + return "WATCHDOG"; + case 0x02: + return "SENSOR"; + case 0x03: + return "SW_MAIN"; + case 0x04: + return "LP0"; } + return "UNKNOWN"; } +#endif
/* Print CPU information */ int print_cpuinfo(void) { - char soc_name[10]; - - strncpy(soc_name, CONFIG_SYS_SOC, 10); - upstring(soc_name); - puts(soc_name); - puts("\n"); + printf("SoC: %s\n", CONFIG_SYS_SOC); +#if defined(CONFIG_TEGRA124) || defined(CONFIG_TEGRA30) + printf("Reset cause: %s\n", get_reset_cause()); +#endif
/* TBD: Add printf of major/minor rev info, stepping, etc. */ return 0;