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)

1 files changed, 27 insertions, 0 deletions

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) */