[ARM] 4204/1: S3C24XX: add hook to specify cpu reset

Add hook code to specify cpu specific reset call

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/include/asm-arm/arch-s3c2410/reset.h b/include/asm-arm/arch-s3c2410/reset.h
new file mode 100644 (file)
index 0000000..4f866cd
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/reset.h
@@ -0,0 +1,22 @@
+/* linux/include/asm-arm/arch-s3c2410/reset.h
+ *
+ * Copyright (c) 2007 Simtec Electronics
+ *     Ben Dooks <ben@simtec.co.uk>
+ *     http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * S3C2410 CPU reset controls
+*/
+
+#ifndef __ASM_ARCH_RESET_H
+#define __ASM_ARCH_RESET_H __FILE__
+
+/* This allows the over-ride of the default reset code
+*/
+
+extern void (*s3c24xx_reset_hook)(void);
+
+#endif /* __ASM_ARCH_RESET_H */

diff --git a/include/asm-arm/arch-s3c2410/system.h b/include/asm-arm/arch-s3c2410/system.h
index 41aeb73..1c74ef1 100644 (file)
--- a/include/asm-arm/arch-s3c2410/system.h
+++ b/include/asm-arm/arch-s3c2410/system.h
@@ -15,11 +15,13 @@
 
 #include <asm/arch/map.h>
 #include <asm/arch/idle.h>
+#include <asm/arch/reset.h>
 
 #include <asm/arch/regs-watchdog.h>
 #include <asm/arch/regs-clock.h>
 
 void (*s3c24xx_idle)(void);
+void (*s3c24xx_reset_hook)(void);
 
 void s3c24xx_default_idle(void)
 {
@@ -54,7 +56,6 @@ static void arch_idle(void)
                s3c24xx_default_idle();
 }
 
-
 static void
 arch_reset(char mode)
 {
@@ -62,6 +63,9 @@ arch_reset(char mode)
                cpu_reset(0);
        }
 
+       if (s3c24xx_reset_hook)
+               s3c24xx_reset_hook();
+
        printk("arch_reset: attempting watchdog reset\n");
 
        __raw_writel(0, S3C2410_WTCON);   /* disable watchdog, to be safe  */