openwrt/target/linux/bcm4908/patches-5.10/074-v5.13-0001-net-broadcom-bcm4908_enet-read-MAC-from-OF.patch
Rafał Miłecki e3a1e78cd8 bcm4908: prepare kernel 5.10 support
It compiles but *doesn't* boot so it isn't enabled yet.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-11-03 12:08:40 +01:00

39 lines
1.3 KiB
Diff

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>
@@ -647,7 +648,9 @@ static int bcm4908_enet_probe(struct pla
return err;
SET_NETDEV_DEV(netdev, &pdev->dev);
- eth_hw_addr_random(netdev);
+ of_get_mac_address(dev->of_node, netdev->dev_addr);
+ if (!is_valid_ether_addr(netdev->dev_addr))
+ eth_hw_addr_random(netdev);
netdev->netdev_ops = &bcm4908_enet_netdev_ops;
netdev->min_mtu = ETH_ZLEN;
netdev->mtu = ETH_DATA_LEN;