The KS8851 has a reduced internal PHY, which is accessible through its
registers at offset 0xe4. The PHY is compatible with KS886x PHY present
in Micrel switches, except the PHY ID Low/High registers are swapped.
Add PHY ID for this KS8851 PHY and use custom PHY ID mask due to the swap.
Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Andrew Lunn <and...@lunn.ch>
Cc: Heiner Kallweit <hkallwe...@gmail.com>
Cc: Lukas Wunner <lu...@wunner.de>
To: netdev@vger.kernel.org
---
drivers/net/phy/micrel.c | 9 +++++++++
include/linux/micrel_phy.h | 2 ++
2 files changed, 11 insertions(+)
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 54e0d75203da..ca6da128e37a 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -1386,6 +1386,14 @@ static struct phy_driver ksphy_driver[] = {
.read_status = ksz8873mll_read_status,
.suspend = genphy_suspend,
.resume = genphy_resume,
+}, {
+ .phy_id = PHY_ID_KSZ8851,
+ .phy_id_mask = 0xfff000ff,
+ .name = "Micrel KSZ8851 Ethernet MAC",
+ /* PHY_BASIC_FEATURES */
+ .config_init = kszphy_config_init,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
}, {
.phy_id = PHY_ID_KSZ886X,
.phy_id_mask = MICREL_PHY_ID_MASK,
@@ -1432,6 +1440,7 @@ static struct mdio_device_id __maybe_unused micrel_tbl[]
= {
{ PHY_ID_KSZ8061, MICREL_PHY_ID_MASK },
{ PHY_ID_KSZ8081, MICREL_PHY_ID_MASK },
{ PHY_ID_KSZ8873MLL, MICREL_PHY_ID_MASK },
+ { PHY_ID_KSZ8851, 0xfff000ff },
{ PHY_ID_KSZ886X, MICREL_PHY_ID_MASK },
{ PHY_ID_LAN8814, MICREL_PHY_ID_MASK },
{ }
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index 416ee6dd2574..1c26e4ac0dc9 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h
@@ -29,6 +29,8 @@
#define PHY_ID_KSZ9131 0x00221640
#define PHY_ID_LAN8814 0x00221660
+/* The PHY ID Low/High registers are swapped on KSZ8851 */
+#define PHY_ID_KSZ8851 0x14300022
#define PHY_ID_KSZ886X 0x00221430
#define PHY_ID_KSZ8863 0x00221435
--
2.29.2
