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

From: Linus Walleij
Date: Sun Sep 24 2023 - 04:19:19 EST


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@xxxxxxxxxx>
---
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@xxxxxxxxxx>