ARM: restart: at91: use new restart hook

Rather than using a private function pointer, use the existing
arm_pm_restart function pointer instead.  We no longer need to enable
the I-cache in at91sam9_alt_reset() as the caches will now be on when
this function is called.

Update the function names to use the 'restart' terminology rather than
the 'reboot' terminology.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
index ecdd54d..2937339 100644
--- a/arch/arm/mach-at91/at91cap9.c
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -313,7 +313,7 @@
 	}
 };
 
-static void at91cap9_reset(void)
+static void at91cap9_restart(char mode, const char *cmd)
 {
 	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
 }
@@ -335,7 +335,7 @@
 
 static void __init at91cap9_initialize(void)
 {
-	at91_arch_reset = at91cap9_reset;
+	arm_pm_restart = at91cap9_restart;
 	pm_power_off = at91cap9_poweroff;
 	at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);