1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/common/boottime.c b/arch/arm/common/boottime.c
new file mode 100644
index 00000000000..73e9e04ed37
--- /dev/null
+++ b/arch/arm/common/boottime.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2009-2010
+ *
+ * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ * Store boot times measured during for example u-boot startup.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/boottime.h>
+#include <linux/string.h>
+#include <asm/setup.h>
+
+static u32 bootloader_idle;
+static u32 bootloader_total;
+
+static int __init boottime_parse_tag(const struct tag *tag)
+{
+	int i;
+	char buff[BOOTTIME_MAX_NAME_LEN];
+
+	bootloader_idle = tag->u.boottime.idle;
+	bootloader_total = tag->u.boottime.total;
+
+	for (i = 0; i < tag->u.boottime.num; i++) {
+		snprintf(buff, BOOTTIME_MAX_NAME_LEN, "%s+0x0/0x0",
+			 tag->u.boottime.entry[i].name);
+		buff[BOOTTIME_MAX_NAME_LEN - 1] = '\0';
+		boottime_mark_wtime(buff, tag->u.boottime.entry[i].time);
+	}
+
+	return 0;
+}
+
+__tagtable(ATAG_BOOTTIME,  boottime_parse_tag);
+
+int boottime_bootloader_idle(void)
+{
+	if (bootloader_total == 0)
+		return 0;
+
+	return (int) ((bootloader_idle) / (bootloader_total / 100));
+}