linux-kernel - [PATCH v2 10/11] net: phy: aquantia: Add some additional phy interfaces

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Date:   Tue, 19 Jul 2022 19:50:00 -0400
From:   Sean Anderson <sean.anderson@...o.com>
To:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>
Cc:     Alexandru Marginean <alexandru.marginean@....com>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org, Vladimir Oltean <olteanv@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Sean Anderson <sean.anderson@...o.com>
Subject: [PATCH v2 10/11] net: phy: aquantia: Add some additional phy interfaces

These are documented in the AQR115 register reference. I haven't tested
them, but perhaps they'll be useful to someone.

Signed-off-by: Sean Anderson <sean.anderson@...o.com>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
---

(no changes since v1)

 drivers/net/phy/aquantia_main.c | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/aquantia_main.c b/drivers/net/phy/aquantia_main.c
index 8b7a46db30e0..1e7036945a4e 100644
--- a/drivers/net/phy/aquantia_main.c
+++ b/drivers/net/phy/aquantia_main.c
@@ -27,9 +27,12 @@
 #define MDIO_PHYXS_VEND_IF_STATUS		0xe812
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK	GENMASK(7, 3)
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR	0
+#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_KX	1
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_XFI	2
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_USXGMII	3
+#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_XAUI	4
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_SGMII	6
+#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_RXAUI	7
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_OCSGMII	10
 
 #define MDIO_AN_VEND_PROV			0xc400
@@ -91,6 +94,19 @@
 #define VEND1_GLOBAL_FW_ID_MAJOR		GENMASK(15, 8)
 #define VEND1_GLOBAL_FW_ID_MINOR		GENMASK(7, 0)
 
+/* The following registers all have similar layouts; first the registers... */
+#define VEND1_GLOBAL_CFG_10M			0x0310
+#define VEND1_GLOBAL_CFG_100M			0x031b
+#define VEND1_GLOBAL_CFG_1G			0x031c
+#define VEND1_GLOBAL_CFG_2_5G			0x031d
+#define VEND1_GLOBAL_CFG_5G			0x031e
+#define VEND1_GLOBAL_CFG_10G			0x031f
+/* ...and now the fields */
+#define VEND1_GLOBAL_CFG_RATE_ADAPT		GENMASK(8, 7)
+#define VEND1_GLOBAL_CFG_RATE_ADAPT_NONE	0
+#define VEND1_GLOBAL_CFG_RATE_ADAPT_USX		1
+#define VEND1_GLOBAL_CFG_RATE_ADAPT_PAUSE	2
+
 #define VEND1_GLOBAL_RSVD_STAT1			0xc885
 #define VEND1_GLOBAL_RSVD_STAT1_FW_BUILD_ID	GENMASK(7, 4)
 #define VEND1_GLOBAL_RSVD_STAT1_PROV_ID		GENMASK(3, 0)
@@ -335,6 +351,7 @@ static int aqr_read_status(struct phy_device *phydev)
 
 static int aqr107_read_rate(struct phy_device *phydev)
 {
+	u32 config_reg;
 	int val;
 
 	val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_STATUS1);
@@ -392,15 +409,24 @@ static int aqr107_read_status(struct phy_device *phydev)
 	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR:
 		phydev->interface = PHY_INTERFACE_MODE_10GKR;
 		break;
+	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_KX:
+		phydev->interface = PHY_INTERFACE_MODE_1000BASEKX;
+		break;
 	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_XFI:
 		phydev->interface = PHY_INTERFACE_MODE_10GBASER;
 		break;
 	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_USXGMII:
 		phydev->interface = PHY_INTERFACE_MODE_USXGMII;
 		break;
+	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_XAUI:
+		phydev->interface = PHY_INTERFACE_MODE_XAUI;
+		break;
 	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_SGMII:
 		phydev->interface = PHY_INTERFACE_MODE_SGMII;
 		break;
+	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_RXAUI:
+		phydev->interface = PHY_INTERFACE_MODE_RXAUI;
+		break;
 	case MDIO_PHYXS_VEND_IF_STATUS_TYPE_OCSGMII:
 		phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
 		break;
@@ -513,11 +539,14 @@ static int aqr107_config_init(struct phy_device *phydev)
 
 	/* Check that the PHY interface type is compatible */
 	if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
+	    phydev->interface != PHY_INTERFACE_MODE_1000BASEKX &&
 	    phydev->interface != PHY_INTERFACE_MODE_2500BASEX &&
 	    phydev->interface != PHY_INTERFACE_MODE_XGMII &&
 	    phydev->interface != PHY_INTERFACE_MODE_USXGMII &&
 	    phydev->interface != PHY_INTERFACE_MODE_10GKR &&
-	    phydev->interface != PHY_INTERFACE_MODE_10GBASER)
+	    phydev->interface != PHY_INTERFACE_MODE_10GBASER &&
+	    phydev->interface != PHY_INTERFACE_MODE_XAUI &&
+	    phydev->interface != PHY_INTERFACE_MODE_RXAUI)
 		return -ENODEV;
 
 	WARN(phydev->interface == PHY_INTERFACE_MODE_XGMII,
-- 
2.35.1.1320.gc452695387.dirty