diff options
| author | Lukas Wunner <lukas@wunner.de> | 2017-12-18 11:17:07 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-19 19:52:39 +0100 |
| commit | 566bd54b067d5242043ce0560906bf4a2e3de289 (patch) | |
| tree | 22f7daa4c0c012d6eb34e713921949d4e40ee208 /drivers/net/ethernet/micrel/ks8851.c | |
| parent | Merge branch 'bcm63xx_enet-remove-mac_id-usage' (diff) | |
| download | linux-566bd54b067d5242043ce0560906bf4a2e3de289.tar.xz linux-566bd54b067d5242043ce0560906bf4a2e3de289.zip | |
net: ks8851: Support DT-provided MAC address
Allow the boot loader to specify the MAC address in the device tree
to override the EEPROM, or in case no EEPROM is present.
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Tristram Ha <tristram.ha@micrel.com>
Cc: David J. Choi <david.choi@micrel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/micrel/ks8851.c')
| -rw-r--r-- | drivers/net/ethernet/micrel/ks8851.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c index 2fe96f1f3fe5..bd6e9014bc74 100644 --- a/drivers/net/ethernet/micrel/ks8851.c +++ b/drivers/net/ethernet/micrel/ks8851.c @@ -28,6 +28,7 @@ #include <linux/spi/spi.h> #include <linux/gpio.h> #include <linux/of_gpio.h> +#include <linux/of_net.h> #include "ks8851.h" @@ -407,15 +408,23 @@ static void ks8851_read_mac_addr(struct net_device *dev) * @ks: The device structure * * Get or create the initial mac address for the device and then set that - * into the station address register. If there is an EEPROM present, then + * into the station address register. A mac address supplied in the device + * tree takes precedence. Otherwise, if there is an EEPROM present, then * we try that. If no valid mac address is found we use eth_random_addr() * to create a new one. */ static void ks8851_init_mac(struct ks8851_net *ks) { struct net_device *dev = ks->netdev; + const u8 *mac_addr; + + mac_addr = of_get_mac_address(ks->spidev->dev.of_node); + if (mac_addr) { + memcpy(dev->dev_addr, mac_addr, ETH_ALEN); + ks8851_write_mac_addr(dev); + return; + } - /* first, try reading what we've got already */ if (ks->rc_ccr & CCR_EEPROM) { ks8851_read_mac_addr(dev); if (is_valid_ether_addr(dev->dev_addr)) |