From 5bcdb1373a6c8ffbe2d139a9c7f1fa27d2525b10 Mon Sep 17 00:00:00 2001 From: Tristram Ha Date: Thu, 24 Jul 2025 17:17:51 -0700 Subject: [PATCH] net: dsa: microchip: Write switch MAC address differently for KSZ8463 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 Link: https://patch.msgid.link/20250725001753.6330-5-Tristram.Ha@microchip.com Signed-off-by: Jakub Kicinski --- 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 552c993b6519..e47c4a5aad6f 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -4821,7 +4821,16 @@ 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; } -- 2.47.2