add reboot fix from #1312

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6563 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/brcm47xx-2.6/files/arch/mips/bcm947xx/setup.c

@@ -54,7 +54,7 @@ static void bcm47xx_machine_restart(char *command)
 	 */
 
 	/* Set the watchdog timer to reset immediately */
-//TODO	sb_watchdog(sbh, 1);
+	ssb_chipco_watchdog(&ssb.chipco, 1);
 	while (1)
 		cpu_relax();
 }
@@ -63,7 +63,7 @@ static void bcm47xx_machine_halt(void)
 {
 	/* Disable interrupts and watchdog and spin forever */
 	local_irq_disable();
-//TODO	sb_watchdog(sbh, 0);
+	ssb_chipco_watchdog(&ssb.chipco, 0);
 	while (1)
 		cpu_relax();
 }

target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon/chipcommon.c

@@ -401,3 +401,13 @@ int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
 	return nr_ports;
 }
 #endif /* CONFIG_SSB_SERIAL */
+
+/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+int
+ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks)
+{
+	/* instant NMI */
+	chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
+	return 0;
+}
+EXPORT_SYMBOL(ssb_chipco_watchdog);

target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h

@@ -417,6 +417,7 @@ static inline u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc,
 }
 /* TODO: GPIO reservation */
 
+extern int ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks);
 
 #ifdef CONFIG_SSB_SERIAL
 extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc,