MIPS: BCM63XX: don't write to the chipid register on reboot

While harmless, it is bad style to do so.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/4092/
Signed-off-by: John Crispin <blogic@openwrt.org>

diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index bd83836..314231b 100644 (file)
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -86,6 +86,9 @@ void bcm63xx_machine_reboot(void)
        }
 
        for (i = 0; i < 2; i++) {
+               if (!perf_regs[i])
+                       break;
+
                reg = bcm_perf_readl(perf_regs[i]);
                if (BCMCPU_IS_6348()) {
                        reg &= ~EXTIRQ_CFG_MASK_ALL_6348;