The adin phy has extended registers that can be accessed using adin_ext_read and adin_ext_write. These registers can be read directly using the mdio command using readext and writext. For example:
=> mdio rx ethernet@428a0000 0xff23 Reading from bus ethernet@428a0000 PHY at address 0: 65315 - 0xe01
Signed-off-by: Nate Drude nate.d@variscite.com --- drivers/net/phy/adin.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index fb9f1e4c70d..d29210adffc 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -155,6 +155,18 @@ static int adin_ext_write(struct phy_device *phydev, const u32 regnum, const u16 return phy_write(phydev, MDIO_DEVAD_NONE, ADIN1300_EXT_REG_DATA, val); }
+static int adin_extread(struct phy_device *phydev, int addr, int devaddr, + int regnum) +{ + return adin_ext_read(phydev, regnum); +} + +static int adin_extwrite(struct phy_device *phydev, int addr, + int devaddr, int regnum, u16 val) +{ + return adin_ext_write(phydev, regnum, val); +} + static int adin_config_clk_out(struct phy_device *phydev) { ofnode node = phy_get_ofnode(phydev); @@ -260,4 +272,6 @@ U_BOOT_PHY_DRIVER(ADIN1300) = { .config = adin1300_config, .startup = genphy_startup, .shutdown = genphy_shutdown, + .readext = adin_extread, + .writeext = adin_extwrite, };