ipq806x: add support for retrieving macs from mtd

Add support for mtd-mac-address for stmac.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46793

target/linux/ipq806x/patches-3.18/709-stmac-platform-add-support-for-retreiving-mac-from-m.patch

+From 5bf2dabde1fa3af0c9082b42b6847ef3fd198b13 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sun, 9 Aug 2015 12:53:55 +0200
+Subject: [PATCH] stmac: platform: add support for retreiving mac from mtd
+
+---
+ drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+@@ -284,6 +284,7 @@ static int stmmac_pltfr_probe(struct pla
+ 	struct stmmac_priv *priv = NULL;
+ 	struct plat_stmmacenet_data *plat_dat = NULL;
+ 	const char *mac = NULL;
++	u8 mtd_mac[ETH_ALEN] = { };
+ 
+ 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ 	addr = devm_ioremap_resource(dev, res);
+@@ -313,6 +314,15 @@ static int stmmac_pltfr_probe(struct pla
+ 			pr_err("%s: main dt probe failed", __func__);
+ 			return ret;
+ 		}
++
++		if (!mac) {
++			ret = of_get_mac_address_mtd(dev->of_node, &mtd_mac);
++			if (ret == -EPROBE_DEFER)
++				return ret;
++
++			if (is_valid_ether_addr(&mtd_mac))
++				mac = mtd_mac;
++		}
+ 	}
+ 
+ 	/* Custom setup (if needed) */

target/linux/ipq806x/patches-4.1/709-stmac-platform-add-support-for-retreiving-mac-from-m.patch

+From 5bf2dabde1fa3af0c9082b42b6847ef3fd198b13 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sun, 9 Aug 2015 12:53:55 +0200
+Subject: [PATCH] stmac: platform: add support for retreiving mac from mtd
+
+---
+ drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+@@ -302,6 +302,7 @@ static int stmmac_pltfr_probe(struct pla
+ 	struct stmmac_priv *priv = NULL;
+ 	struct plat_stmmacenet_data *plat_dat = NULL;
+ 	const char *mac = NULL;
++	u8 mtd_mac[ETH_ALEN] = { };
+ 	int irq, wol_irq, lpi_irq;
+ 
+ 	/* Get IRQ information early to have an ability to ask for deferred
+@@ -362,6 +363,15 @@ static int stmmac_pltfr_probe(struct pla
+ 			pr_err("%s: main dt probe failed", __func__);
+ 			return ret;
+ 		}
++
++		if (!mac) {
++			ret = of_get_mac_address_mtd(dev->of_node, &mtd_mac);
++			if (ret == -EPROBE_DEFER)
++				return ret;
++
++			if (is_valid_ether_addr(&mtd_mac))
++				mac = mtd_mac;
++		}
+ 	}
+ 
+ 	/* Custom setup (if needed) */