From 67b28148421a72532bc29f0b80c21d6aae2445f3 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Sat, 7 Jan 2012 17:24:44 +0000
Subject: [PATCH] ar71xx: local mac support on the wndr3700
The wndr3700 at least has no eth0 mac address and usually leverages
the first wireless device's mac when in a bridged scenario. If,
however, you want to route, and not bridge the interfaces, you
need a unique mac address for it.
This patch sets the local bit on the mac address pulled from the
wireless chip and uses the resulting address for eth0.
Patch-by: Dave Taht <dave.taht@gmail.com>
SVN-Revision: 29675
---
.../ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
index cfd0ba90c9..c708b97d93 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
@@ -111,12 +111,23 @@ static struct platform_device wndr3700_rtl8366s_device = {
}
};
+/*
+ * The eth0 and wmac0 interfaces share the same MAC address which
+ * can lead to problems if operated unbridged. Set the locally
+ * administered bit on the eth0 MAC to make it unique.
+ */
+
+static void __init wndr3700_init_local_mac(unsigned char *mac_base)
+{
+ ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac_base, 0);
+ ar71xx_eth0_data.mac_addr[0] |= 0x02;
+}
+
static void __init wndr3700_setup(void)
{
u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
- ar71xx_init_mac(ar71xx_eth0_data.mac_addr,
- art + WNDR3700_ETH0_MAC_OFFSET, 0);
+ wndr3700_init_local_mac(art + WNDR3700_ETH0_MAC_OFFSET);
ar71xx_eth0_pll_data.pll_1000 = 0x11110000;
ar71xx_eth0_data.mii_bus_dev = &wndr3700_rtl8366s_device.dev;
ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
--
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