[PATCH] BCM63XX: prevent second enet registration on BCM6338

[Florian Fainelli <florian@openwrt.org>]

This SoC has only one Ethernet MAC, so prevent registration of a second one.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
index 9f544ba..39c2336 100644
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -104,6 +104,9 @@ int __init bcm63xx_enet_register(int unit,
        if (unit > 1)
                return -ENODEV;
 
+       if (unit == 1 && BCMCPU_IS_6338())
+               return -ENODEV;
+
        if (!shared_device_registered) {
                shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
                shared_res[0].end = shared_res[0].start;