From b304c96871c92d1ec8fa57dda36cc198660fd10e Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Tue, 5 Apr 2005 22:30:50 +0000
Subject: Patches by Steven Scholz, 05 Apr 2005: - Use i.MX watchdog timer for
 reset_cpu() - Move reset_cpu() out of cpu/arm920t/start.S into the SoC
 specific   subdirectories cpu/arm920t/imx/ and cpu/arm920t/s3c24x0/   (now in
 interupts.c)

---
 cpu/arm920t/s3c24x0/interrupts.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'cpu/arm920t/s3c24x0')

diff --git a/cpu/arm920t/s3c24x0/interrupts.c b/cpu/arm920t/s3c24x0/interrupts.c
index 868621fa5..ba835f3ca 100644
--- a/cpu/arm920t/s3c24x0/interrupts.c
+++ b/cpu/arm920t/s3c24x0/interrupts.c
@@ -185,4 +185,31 @@ ulong get_tbclk (void)
 	return tbclk;
 }
 
+/*
+ * reset the cpu by setting up the watchdog timer and let him time out
+ */
+void reset_cpu (ulong ignored)
+{
+	S3C24X0_WATCHDOG * const watchdog;
+
+#ifdef CONFIG_TRAB
+	disable_vfd();
+#endif
+
+	watchdog = S3C24X0_GetBase_WATCHDOG();
+
+	/* Disable watchdog */
+	watchdog->WTCON = 0x0000;
+
+	/* Initialize watchdog timer count register */
+	watchdog->WTCNT = 0x0001;
+
+	/* Enable watchdog timer; assert reset at timer timeout */
+	watchdog->WTCON = 0x0021;
+
+	while(1);	/* loop forever and wait for reset to happen */
+
+	/*NOTREACHED*/
+}
+
 #endif /* defined(CONFIG_S3C2400) || defined (CONFIG_S3C2410) || defined (CONFIG_TRAB) */
-- 
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