1 files changed, 78 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/reboot_reasons.c b/arch/arm/mach-ux500/reboot_reasons.c
new file mode 100644
index 00000000000..167a527e33e
--- /dev/null
+++ b/arch/arm/mach-ux500/reboot_reasons.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ * Author: Rickard Evertsson <rickard.evertsson@stericsson.com>
+ * for ST-Ericsson.
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ * Use this file to customize your reboot / sw reset reasons. Add, remove or
+ * modify reasons in reboot_reasons[].
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <mach/reboot_reasons.h>
+
+struct reboot_reason reboot_reasons[] = {
+	{"crash", SW_RESET_CRASH},
+	{"factory-reset", SW_RESET_FACTORY_RESET},
+	{"recovery", SW_RESET_RECOVERY},
+	{"charging", SW_RESET_CHARGING},
+	{"coldstart", SW_RESET_COLDSTART},
+	{"none", SW_RESET_NO_ARGUMENT}, /* Normal Boot */
+	{"chgonly-exit", SW_RESET_CHGONLY_EXIT}, /* Exit Charge Only Mode */
+};
+
+unsigned int reboot_reasons_size = ARRAY_SIZE(reboot_reasons);
+
+/*
+ * The reboot reason string can be 255 characters long and the memory
+ * in which we save the sw reset reason is 2 bytes. Therefore we need to
+ * convert the string into a 16 bit pattern.
+ *
+ * See file reboot_reasons.h for conversion.
+ */
+u16 reboot_reason_code(const char *cmd)
+{
+	int i;
+
+	if (cmd == NULL) {
+		if (oops_in_progress) {
+			/* if we're in an oops assume it's a crash */
+			return SW_RESET_CRASH;
+		} else {
+			/* normal reboot w/o argument */
+			return SW_RESET_NO_ARGUMENT;
+		}
+	}
+
+	/* Search through reboot reason list */
+	for (i = 0; i < reboot_reasons_size; i++) {
+		if (!strcmp(reboot_reasons[i].reason, cmd))
+			return reboot_reasons[i].code;
+	}
+
+	/* No valid reboot reason found */
+	return SW_RESET_NO_ARGUMENT;
+}
+
+/*
+ * The saved sw reset reason is a 2 byte code that is translated into
+ * a reboot reason string which is up to 255 characters long by this
+ * function.
+ *
+ * See file reboot_reasons.h for conversion.
+ */
+const char *reboot_reason_string(u16 code)
+{
+	int i;
+
+	/* Search through reboot reason list */
+	for (i = 0; i < reboot_reasons_size; i++) {
+		if (reboot_reasons[i].code == code)
+			return reboot_reasons[i].reason;
+	}
+
+	/* No valid reboot reason code found */
+	return "unknown";
+}