(5/6) bcm57xx: bcm4785 incomplete reboot

I noticed my wrt350n would not reliably reboot after entering
the reboot command.  I found this code in the source for the
wrt600n.  It corrects the problem, and the wrt350n reboots
reliably now.

Signed-off-by: Ben Pfountz <netprince (at) vt (dot) edu>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11470 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/setup.c b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/setup.c
index 00c4d90..89e4823 100644 (file)
--- a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/setup.c
+++ b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/setup.c
@@ -49,6 +49,7 @@
 #include <osl.h>
 #include <sbutils.h>
 #include <bcmnvram.h>
+#include <bcmdevs.h>
 #include <sbhndmips.h>
 #include <hndmips.h>
 #include <trxhdr.h>
@@ -89,9 +90,21 @@ bcm947xx_machine_restart(char *command)
 {
        printk("Please stand by while rebooting the system...\n");
 
+       if (sb_chip(sbh) == BCM4785_CHIP_ID)
+               MTC0(C0_BROADCOM, 4, (1 << 22));
+
        /* Set the watchdog timer to reset immediately */
        __cli();
        sb_watchdog(sbh, 1);
+
+       if (sb_chip(sbh) == BCM4785_CHIP_ID) {
+               __asm__ __volatile__(
+                       ".set\tmips3\n\t"
+                       "sync\n\t"
+                       "wait\n\t"
+                       ".set\tmips0");
+       }
+
        while (1);
 }