[U-Boot] [PATCH] ARM: fdt support: Add usbethaddr as an acceptable MAC

[Dan Murphy]

A board that has a USB ethernet device only may set the usbetheraddr
and not the ethaddr.
ethaddr will be the default MAC address that is chosen and if that
is not populated then the usbethaddr is looked at.  If neither are set
then then device tree blob is not modified.

Signed-off-by: Dan Murphy <dmurphy at ti.com>
---
 common/fdt_support.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/common/fdt_support.c b/common/fdt_support.c
index b034c98..fef7e60 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -450,8 +450,18 @@ void fdt_fixup_ethernet(void *fdt)
 	if (node < 0)
 		return;
 
+	if (!getenv("ethaddr")) {
+		if (getenv("usbethaddr")) {
+			strcpy(mac, "usbethaddr");
+		} else {
+			debug("No ethernet MAC Address defined\n");
+			return;
+		}
+	} else {
+		strcpy(mac, "ethaddr");
+	}
+
 	i = 0;
-	strcpy(mac, "ethaddr");
 	while ((tmp = getenv(mac)) != NULL) {
 		sprintf(enet, "ethernet%d", i);
 		path = fdt_getprop(fdt, node, enet, NULL);
-- 
1.7.9.5