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net: phy: marvell: Add functions to read PHY's extended registers

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This commit allows extended Marvell registers to be read with:

foo > mdio rx FEC 3.10
Reading from bus FEC
PHY at address 0:
3.16 - 0x1063
foo > mdio wx FEC 3.10 0x1011

The above code changes the way ETH connector LEDs blink.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: York Sun <york.sun@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Lukasz Majewski 2017-10-30 22:57:53 +01:00 committed by Joe Hershberger
parent 765a159cf5
commit ce27eb9b40
1 changed files with 29 additions and 0 deletions
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29
drivers/net/phy/marvell.c
View File

@ -104,6 +104,31 @@
#define MIIM_88E151x_MODE_SGMII 1
#define MIIM_88E151x_RESET_OFFS 15
static int m88e1xxx_phy_extread(struct phy_device *phydev, int addr,
int devaddr, int regnum)
{
int oldpage = phy_read(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE);
int val;
phy_write(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE, devaddr);
val = phy_read(phydev, MDIO_DEVAD_NONE, regnum);
phy_write(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE, oldpage);
return val;
}
static int m88e1xxx_phy_extwrite(struct phy_device *phydev, int addr,
int devaddr, int regnum, u16 val)
{
int oldpage = phy_read(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE);
phy_write(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE, devaddr);
phy_write(phydev, MDIO_DEVAD_NONE, regnum, val);
phy_write(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE, oldpage);
return 0;
}
/* Marvell 88E1011S */
static int m88e1011s_config(struct phy_device *phydev)
{
@ -669,6 +694,8 @@ static struct phy_driver M88E1510_driver = {
.config = &m88e1510_config,
.startup = &m88e1011s_startup,
.shutdown = &genphy_shutdown,
.readext = &m88e1xxx_phy_extread,
.writeext = &m88e1xxx_phy_extwrite,
};
/*
@ -684,6 +711,8 @@ static struct phy_driver M88E1518_driver = {
.config = &m88e1518_config,
.startup = &m88e1011s_startup,
.shutdown = &genphy_shutdown,
.readext = &m88e1xxx_phy_extread,
.writeext = &m88e1xxx_phy_extwrite,
};
static struct phy_driver M88E1310_driver = {