netdev - [PATCH net-next] net: phy: amd: Support the Altima AMI101L

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Message-Id: <20230924-ac101l-phy-v1-1-5e6349e28aa4@linaro.org>
Date: Sun, 24 Sep 2023 10:19:02 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH net-next] net: phy: amd: Support the Altima AMI101L

The Altima AC101L is obviously compatible with the AMD PHY,
as seen by reading the datasheet.

Datasheet: https://docs.broadcom.com/doc/AC101L-DS05-405-RDS.pdf

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 drivers/net/phy/Kconfig |  4 ++--
 drivers/net/phy/amd.c   | 33 +++++++++++++++++++++++----------
 2 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 107880d13d21..421d2b62918f 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -69,9 +69,9 @@ config SFP
 comment "MII PHY device drivers"
 
 config AMD_PHY
-	tristate "AMD PHYs"
+	tristate "AMD and Altima PHYs"
 	help
-	  Currently supports the am79c874
+	  Currently supports the AMD am79c874 and Altima AC101L.
 
 config MESON_GXL_PHY
 	tristate "Amlogic Meson GXL Internal PHY"
diff --git a/drivers/net/phy/amd.c b/drivers/net/phy/amd.c
index 001bb6d8bfce..930b15fa6ce9 100644
--- a/drivers/net/phy/amd.c
+++ b/drivers/net/phy/amd.c
@@ -13,6 +13,7 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 
+#define PHY_ID_AC101L		0x00225520
 #define PHY_ID_AM79C874		0x0022561b
 
 #define MII_AM79C_IR		17	/* Interrupt Status/Control Register */
@@ -87,19 +88,31 @@ static irqreturn_t am79c_handle_interrupt(struct phy_device *phydev)
 	return IRQ_HANDLED;
 }
 
-static struct phy_driver am79c_driver[] = { {
-	.phy_id		= PHY_ID_AM79C874,
-	.name		= "AM79C874",
-	.phy_id_mask	= 0xfffffff0,
-	/* PHY_BASIC_FEATURES */
-	.config_init	= am79c_config_init,
-	.config_intr	= am79c_config_intr,
-	.handle_interrupt = am79c_handle_interrupt,
-} };
+static struct phy_driver am79c_drivers[] = {
+	{
+		.phy_id		= PHY_ID_AM79C874,
+		.name		= "AM79C874",
+		.phy_id_mask	= 0xfffffff0,
+		/* PHY_BASIC_FEATURES */
+		.config_init	= am79c_config_init,
+		.config_intr	= am79c_config_intr,
+		.handle_interrupt = am79c_handle_interrupt,
+	},
+	{
+		.phy_id		= PHY_ID_AC101L,
+		.name		= "AC101L",
+		.phy_id_mask	= 0xfffffff0,
+		/* PHY_BASIC_FEATURES */
+		.config_init	= am79c_config_init,
+		.config_intr	= am79c_config_intr,
+		.handle_interrupt = am79c_handle_interrupt,
+	},
+};
 
-module_phy_driver(am79c_driver);
+module_phy_driver(am79c_drivers);
 
 static struct mdio_device_id __maybe_unused amd_tbl[] = {
+	{ PHY_ID_AC101L, 0xfffffff0 },
 	{ PHY_ID_AM79C874, 0xfffffff0 },
 	{ }
 };

---
base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
change-id: 20230924-ac101l-phy-704e9a0152e5

Best regards,
-- 
Linus Walleij <linus.walleij@...aro.org>