reboot: arm: prepare reboot_mode for moving to generic kernel code

Prepare for the moving the parsing of reboot= to the generic kernel code
by making reboot_mode into a more generic form.

Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 7f1efcd..2d54406 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -175,14 +175,14 @@
 		default_idle();
 }
 
-static char reboot_mode = 'h';
+enum reboot_mode reboot_mode = REBOOT_HARD;
 
-int __init reboot_setup(char *str)
+static int __init reboot_setup(char *str)
 {
-	reboot_mode = str[0];
+	if ('s' == str[0])
+		reboot_mode = REBOOT_SOFT;
 	return 1;
 }
-
 __setup("reboot=", reboot_setup);
 
 /*
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 9b65327..63af9a7a 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -74,7 +74,7 @@
 
 extern void paging_init(struct machine_desc *desc);
 extern void sanity_check_meminfo(void);
-extern void reboot_setup(char *str);
+extern enum reboot_mode reboot_mode;
 extern void setup_dma_zone(struct machine_desc *desc);
 
 unsigned int processor_id;
@@ -861,8 +861,8 @@
 
 	setup_dma_zone(mdesc);
 
-	if (mdesc->restart_mode)
-		reboot_setup(&mdesc->restart_mode);
+	if (mdesc->reboot_mode != REBOOT_HARD)
+		reboot_mode = mdesc->reboot_mode;
 
 	init_mm.start_code = (unsigned long) _text;
 	init_mm.end_code   = (unsigned long) _etext;