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phy: adin: add readext and writeext support for mdio cmd

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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>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
This commit is contained in:
Nate Drude
2023-07-27 14:32:12 -04:00
committed by Tom Rini
parent 3ca4955760
commit e8b4a8d7f0
1 changed files with 14 additions and 0 deletions
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drivers/net/phy/adin.c
+14
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@@ -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,
};