ARM: restart: ixp4xx: use new restart hook

Hook these platforms restart code into the new restart hook rather
than using arch_reset().

Acked-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index b86a0055ab96..04aa12103bce 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -501,3 +501,23 @@ static void __init ixp4xx_clockevent_init(void)
 
         clockevents_register_device(&clockevent_ixp4xx);
 }
+
+void ixp4xx_restart(char mode, const char *cmd)
+{
+        if ( 1 && mode == 's') {
+                /* Jump into ROM at address 0 */
+                soft_restart(0);
+        } else {
+                /* Use on-chip reset capability */
+
+                /* set the "key" register to enable access to
+                 * "timer" and "enable" registers
+                 */
+                *IXP4XX_OSWK = IXP4XX_WDT_KEY;
+
+                /* write 0 to the timer register for an immediate reset */
+                *IXP4XX_OSWT = 0;
+
+                *IXP4XX_OSWE = IXP4XX_WDT_RESET_ENABLE | IXP4XX_WDT_COUNT_ENABLE;
+        }
+}