Commit 3d483a10 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Jakub Kicinski
Browse files

net: phy: realtek: add support for reading MDIO_MMD_VEND2 regs on RTL8125/RTL8126 



RTL8125/RTL8126 don't support MMD access to the internal PHY, but
provide a mechanism to access at least all MDIO_MMD_VEND2 registers.
By exposing this mechanism standard MMD access functions can be used
to access the MDIO_MMD_VEND2 registers.

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/e821b302-5fe6-49ab-aabd-05da500581c0@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent b56e4d66

drivers/net/phy/realtek.c

+10 −2
Original line number Diff line number Diff line
@@ -736,7 +736,11 @@ static int rtlgen_read_mmd(struct phy_device *phydev, int devnum, u16 regnum) 
{

	int ret;



	if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE) {

	if (devnum == MDIO_MMD_VEND2) {

		rtl821x_write_page(phydev, regnum >> 4);

		ret = __phy_read(phydev, 0x10 + ((regnum & 0xf) >> 1));

		rtl821x_write_page(phydev, 0);

	} else if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE) {

		rtl821x_write_page(phydev, 0xa5c);

		ret = __phy_read(phydev, 0x12);

		rtl821x_write_page(phydev, 0);
@@ -760,7 +764,11 @@ static int rtlgen_write_mmd(struct phy_device *phydev, int devnum, u16 regnum, 
{

	int ret;



	if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {

	if (devnum == MDIO_MMD_VEND2) {

		rtl821x_write_page(phydev, regnum >> 4);

		ret = __phy_write(phydev, 0x10 + ((regnum & 0xf) >> 1), val);

		rtl821x_write_page(phydev, 0);

	} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {

		rtl821x_write_page(phydev, 0xa5d);

		ret = __phy_write(phydev, 0x10, val);

		rtl821x_write_page(phydev, 0);