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>

4 files changed, 10 insertions, 9 deletions

diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 75bf07910b81..fdf62b4246b0 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -11,6 +11,7 @@
 #include <linux/types.h>
 
 #ifndef __ASSEMBLY__
+#include <linux/reboot.h>
 
 struct tag;
 struct meminfo;
@@ -43,7 +44,7 @@ struct machine_desc {
         unsigned char           reserve_lp0 :1; /* never has lp0        */
         unsigned char           reserve_lp1 :1; /* never has lp1        */
         unsigned char           reserve_lp2 :1; /* never has lp2        */
-        char                    restart_mode;   /* default restart mode */
+        enum reboot_mode        reboot_mode;    /* default restart mode */
         struct smp_operations   *smp;           /* SMP operations       */
         bool                    (*smp_init)(void);
         void                    (*fixup)(struct tag *, char **,
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 7f1efcd4a6e9..2d544062fd7d 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -175,14 +175,14 @@ void arch_cpu_idle(void)
                 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 9b653278c9e8..63af9a7ae512 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -74,7 +74,7 @@ __setup("fpe=", fpe_setup);
 
 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 @@ void __init setup_arch(char **cmdline_p)
 
         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;
diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index 6987a09ec219..9669cc0b6318 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c
@@ -86,7 +86,7 @@ fixup_cats(struct tag *tags, char **cmdline, struct meminfo *mi)
 MACHINE_START(CATS, "Chalice-CATS")
         /* Maintainer: Philip Blundell */
         .atag_offset    = 0x100,
-        .restart_mode   = 's',
+        .reboot_mode    = REBOOT_SOFT,
         .fixup          = fixup_cats,
         .map_io         = footbridge_map_io,
         .init_irq       = footbridge_init_irq,