[U-Boot] [PATCH v2 07/10] apalis-tk1/t30: colibri_t30: display reset reason

[Igor Opaniuk <igor.opaniuk@gmail.com>]

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;
-- 
2.17.1