| From 3559c1ea4336636c886002996d50805365d3055c Mon Sep 17 00:00:00 2001 |
| From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> |
| Date: Wed, 10 Mar 2021 09:48:13 +0100 |
| Subject: [PATCH] net: broadcom: bcm4908_enet: read MAC from OF |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| BCM4908 devices have MAC address accessible using NVMEM so it's needed |
| to use OF helper for reading it. |
| |
| Signed-off-by: Rafał Miłecki <rafal@milecki.pl> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| --- |
| drivers/net/ethernet/broadcom/bcm4908_enet.c | 8 +++++++- |
| 1 file changed, 7 insertions(+), 1 deletion(-) |
| |
| --- a/drivers/net/ethernet/broadcom/bcm4908_enet.c |
| +++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c |
| @@ -9,6 +9,7 @@ |
| #include <linux/interrupt.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| +#include <linux/of_net.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <linux/string.h> |
| @@ -620,6 +621,7 @@ static int bcm4908_enet_probe(struct pla |
| struct device *dev = &pdev->dev; |
| struct net_device *netdev; |
| struct bcm4908_enet *enet; |
| + const u8 *mac; |
| int err; |
| |
| netdev = devm_alloc_etherdev(dev, sizeof(*enet)); |
| @@ -647,7 +649,11 @@ static int bcm4908_enet_probe(struct pla |
| return err; |
| |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| - eth_hw_addr_random(netdev); |
| + mac = of_get_mac_address(dev->of_node); |
| + if (!IS_ERR(mac)) |
| + ether_addr_copy(netdev->dev_addr, mac); |
| + else |
| + eth_hw_addr_random(netdev); |
| netdev->netdev_ops = &bcm4908_enet_netdev_ops; |
| netdev->min_mtu = ETH_ZLEN; |
| netdev->mtu = ETH_DATA_LEN; |