net: phy: microchip_t1s: add support for Microchip's LAN867X Rev.C2

Add support for LAN8670/1/2 Rev.C2 as per the latest configuration note
AN1699 released (Revision E (DS60001699F - June 2024)) for Rev.C1 is also
applicable for Rev.C2. Refer hardware revisions list in the latest AN1699
Revision E (DS60001699F - June 2024).
https://www.microchip.com/en-us/application-notes/an1699

Signed-off-by: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
Link: https://patch.msgid.link/20241010082205.221493-7-parthiban.veerasooran@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 04f605606a8ae1c3d39a2bf454fe4d4c6ea2f03a..ee3ea0b56d482bdb2318411ee2a2944c3c21bf6b 100644 (file)
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -292,8 +292,8 @@ config MICREL_PHY
 config MICROCHIP_T1S_PHY
        tristate "Microchip 10BASE-T1S Ethernet PHYs"
        help
-         Currently supports the LAN8670/1/2 Rev.B1/C1 and LAN8650/1 Rev.B0/B1
-         Internal PHYs.
+         Currently supports the LAN8670/1/2 Rev.B1/C1/C2 and
+         LAN8650/1 Rev.B0/B1 Internal PHYs.
 
 config MICROCHIP_PHY
        tristate "Microchip PHYs"

diff --git a/drivers/net/phy/microchip_t1s.c b/drivers/net/phy/microchip_t1s.c
index f4081886ac1ea91007c92b352b74704ba71794e9..d305c2b1fcd0b07760f95ed9fa02bd07bdbdfaaf 100644 (file)
--- a/drivers/net/phy/microchip_t1s.c
+++ b/drivers/net/phy/microchip_t1s.c
@@ -3,7 +3,7 @@
  * Driver for Microchip 10BASE-T1S PHYs
  *
  * Support: Microchip Phys:
- *  lan8670/1/2 Rev.B1/C1
+ *  lan8670/1/2 Rev.B1/C1/C2
  *  lan8650/1 Rev.B0/B1 Internal PHYs
  */
 
@@ -13,6 +13,7 @@
 
 #define PHY_ID_LAN867X_REVB1 0x0007C162
 #define PHY_ID_LAN867X_REVC1 0x0007C164
+#define PHY_ID_LAN867X_REVC2 0x0007C165
 /* Both Rev.B0 and B1 clause 22 PHYID's are same due to B1 chip limitation */
 #define PHY_ID_LAN865X_REVB 0x0007C1B3
 
@@ -292,7 +293,7 @@ static int lan867x_check_reset_complete(struct phy_device *phydev)
        return 0;
 }
 
-static int lan867x_revc1_config_init(struct phy_device *phydev)
+static int lan867x_revc_config_init(struct phy_device *phydev)
 {
        s8 offsets[2];
        int ret;
@@ -305,10 +306,10 @@ static int lan867x_revc1_config_init(struct phy_device *phydev)
        if (ret)
                return ret;
 
-       /* LAN867x Rev.C1 configuration settings are equal to the first 9
+       /* LAN867x Rev.C1/C2 configuration settings are equal to the first 9
         * configuration settings and all the sqi fixup settings from LAN865x
         * Rev.B0/B1. So the same fixup registers and values from LAN865x
-        * Rev.B0/B1 are used for LAN867x Rev.C1 to avoid duplication.
+        * Rev.B0/B1 are used for LAN867x Rev.C1/C2 to avoid duplication.
         * Refer the below links for the comparison.
         * https://www.microchip.com/en-us/application-notes/an1760
         * Revision F (DS60001760G - June 2024)
@@ -428,7 +429,17 @@ static struct phy_driver microchip_t1s_driver[] = {
                PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVC1),
                .name               = "LAN867X Rev.C1",
                .features           = PHY_BASIC_T1S_P2MP_FEATURES,
-               .config_init        = lan867x_revc1_config_init,
+               .config_init        = lan867x_revc_config_init,
+               .read_status        = lan86xx_read_status,
+               .get_plca_cfg       = genphy_c45_plca_get_cfg,
+               .set_plca_cfg       = genphy_c45_plca_set_cfg,
+               .get_plca_status    = genphy_c45_plca_get_status,
+       },
+       {
+               PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVC2),
+               .name               = "LAN867X Rev.C2",
+               .features           = PHY_BASIC_T1S_P2MP_FEATURES,
+               .config_init        = lan867x_revc_config_init,
                .read_status        = lan86xx_read_status,
                .get_plca_cfg       = genphy_c45_plca_get_cfg,
                .set_plca_cfg       = genphy_c45_plca_set_cfg,
@@ -453,6 +464,7 @@ module_phy_driver(microchip_t1s_driver);
 static struct mdio_device_id __maybe_unused tbl[] = {
        { PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVB1) },
        { PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVC1) },
+       { PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVC2) },
        { PHY_ID_MATCH_EXACT(PHY_ID_LAN865X_REVB) },
        { }
 };