MIPS: BCM63xx: Prevent second enet registration on BCM6338

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

Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1482/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
index 9f544badd0b..39c23366c5c 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;