From: Tristram Ha KSZ8463 uses 16-bit register definitions so it writes differently for 8-bit switch MAC address. Signed-off-by: Tristram Ha Reviewed-by: Andrew Lunn --- drivers/net/dsa/microchip/ksz_common.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c index b78017abf0b8..0ef41f8d0066 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -4823,7 +4823,16 @@ int ksz_switch_macaddr_get(struct dsa_switch *ds, int port, /* Program the switch MAC address to hardware */ for (i = 0; i < ETH_ALEN; i++) { - ret = ksz_write8(dev, regs[REG_SW_MAC_ADDR] + i, addr[i]); + if (ksz_is_ksz8463(dev)) { + u16 addr16 = ((u16)addr[i] << 8) | addr[i + 1]; + + ret = ksz_write16(dev, regs[REG_SW_MAC_ADDR] + i, + addr16); + i++; + } else { + ret = ksz_write8(dev, regs[REG_SW_MAC_ADDR] + i, + addr[i]); + } if (ret) goto macaddr_drop; } -- 2.34.1