[ARM] pass reboot command line to arch_reset()

OMAP wishes to pass state to the boot loader upon reboot in order to
instruct it whether to wait for USB-based reflashing or not.  There is
already a facility to do this via the reboot() syscall, except we ignore
the string passed to machine_restart().

This patch fixes things to pass this string to arch_reset().  This means
that we keep the reboot mode limited to telling the kernel _how_ to
perform the reboot which should be independent of what we request the
boot loader to do.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c
index 542062f8cbc1..1932b7e0da15 100644
--- a/arch/arm/plat-s3c24xx/cpu.c
+++ b/arch/arm/plat-s3c24xx/cpu.c
@@ -182,7 +182,7 @@ static unsigned long s3c24xx_read_idcode_v4(void)
  * with the caches enabled. It seems at least the S3C2440 has a problem
  * resetting if there is bus activity interrupted by the reset.
  */
-static void s3c24xx_pm_restart(char mode)
+static void s3c24xx_pm_restart(char mode, const char *cmd)
 {
         if (mode != 's') {
                 unsigned long flags;
@@ -191,12 +191,12 @@ static void s3c24xx_pm_restart(char mode)
                 __cpuc_flush_kern_all();
                 __cpuc_flush_user_all();
 
-                arch_reset(mode);
+                arch_reset(mode, cmd);
                 local_irq_restore(flags);
         }
 
         /* fallback, or unhandled */
-        arm_machine_restart(mode);
+        arm_machine_restart(mode, cmd);
 }
 
 void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)