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net: phy: marvell: Unify 88E151x series phy_driver

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The PHY models of the Marvell 88E151x series are not reliably
distinguishable by their uid / PHY identifiers.
The 88E1510, 88E1512, 88E1514 and 88E1518 all have the same OUI and
model number and bits 3:0 in the PHY Identifier 2 (Page 0, Reg 3) are
described as HW revision number, but both 88E1510 and 88E1518 PHYs were
observed with the same HW rev number (1).

Before commit 83cfbeb0df ("net: phy: Fix mask so that we can identify
Marvell 88E1518"), the 88E151x were detected because the HW revision
bits were masked from the uid. After that change, 88E1510/12/18 were all
detected as 88E1518 and the 88E1510 specific code was no longer run.

I modified the mask to again ignore all four HW revision bits, removed
the 88E1510 specific code (board-specific LED/INTn setup), which was not
called since late 2016 anyway and renamed the config function and
phy_driver struct to the better fitting 88e151x.

The uid and mask bits 3:0 are now again the same as in the Linux kernel.

Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
This commit is contained in:
Clemens Gruber 2020-02-24 20:52:20 +01:00 committed by Joe Hershberger
parent 2bcc43b39b
commit 1c1f4f0a4b
1 changed files with 10 additions and 55 deletions
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65
drivers/net/phy/marvell.c
View file

@ -303,9 +303,9 @@ static int m88e1111s_config(struct phy_device *phydev)
}
/**
* m88e1518_phy_writebits - write bits to a register
* m88e151x_phy_writebits - write bits to a register
*/
void m88e1518_phy_writebits(struct phy_device *phydev,
void m88e151x_phy_writebits(struct phy_device *phydev,
u8 reg_num, u16 offset, u16 len, u16 data)
{
u16 reg, mask;
@ -323,7 +323,7 @@ void m88e1518_phy_writebits(struct phy_device *phydev,
phy_write(phydev, MDIO_DEVAD_NONE, reg_num, reg);
}
static int m88e1518_config(struct phy_device *phydev)
static int m88e151x_config(struct phy_device *phydev)
{
u16 reg;
@ -350,11 +350,11 @@ static int m88e1518_config(struct phy_device *phydev)
phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE, 18);
/* In reg 20, write MODE[2:0] = 0x1 (SGMII to Copper) */
m88e1518_phy_writebits(phydev, MIIM_88E151x_GENERAL_CTRL,
m88e151x_phy_writebits(phydev, MIIM_88E151x_GENERAL_CTRL,
0, 3, MIIM_88E151x_MODE_SGMII);
/* PHY reset is necessary after changing MODE[2:0] */
m88e1518_phy_writebits(phydev, MIIM_88E151x_GENERAL_CTRL,
m88e151x_phy_writebits(phydev, MIIM_88E151x_GENERAL_CTRL,
MIIM_88E151x_RESET_OFFS, 1, 1);
/* Reset page selection */
@ -401,33 +401,6 @@ static int m88e1518_config(struct phy_device *phydev)
return 0;
}
/* Marvell 88E1510 */
static int m88e1510_config(struct phy_device *phydev)
{
/* Select page 3 */
phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE,
MIIM_88E1118_PHY_LED_PAGE);
/* Enable INTn output on LED[2] */
m88e1518_phy_writebits(phydev, MIIM_88E151x_LED_TIMER_CTRL,
MIIM_88E151x_INT_EN_OFFS, 1, 1);
/* Configure LEDs */
/* LED[0]:0011 (ACT) */
m88e1518_phy_writebits(phydev, MIIM_88E151x_LED_FUNC_CTRL,
MIIM_88E151x_LED0_OFFS, MIIM_88E151x_LED_FLD_SZ,
MIIM_88E151x_LED0_ACT);
/* LED[1]:0110 (LINK 100/1000 Mbps) */
m88e1518_phy_writebits(phydev, MIIM_88E151x_LED_FUNC_CTRL,
MIIM_88E151x_LED1_OFFS, MIIM_88E151x_LED_FLD_SZ,
MIIM_88E151x_LED1_100_1000_LINK);
/* Reset page selection */
phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E1118_PHY_PAGE, 0);
return m88e1518_config(phydev);
}
/* Marvell 88E1118 */
static int m88e1118_config(struct phy_device *phydev)
{
@ -685,29 +658,12 @@ static struct phy_driver M88E1149S_driver = {
.shutdown = &genphy_shutdown,
};
static struct phy_driver M88E1510_driver = {
.name = "Marvell 88E1510",
static struct phy_driver M88E151x_driver = {
.name = "Marvell 88E151x",
.uid = 0x1410dd0,
.mask = 0xfffffff,
.mask = 0xffffff0,
.features = PHY_GBIT_FEATURES,
.config = &m88e1510_config,
.startup = &m88e1011s_startup,
.shutdown = &genphy_shutdown,
.readext = &m88e1xxx_phy_extread,
.writeext = &m88e1xxx_phy_extwrite,
};
/*
* This supports:
* 88E1518, uid 0x1410dd1
* 88E1512, uid 0x1410dd4
*/
static struct phy_driver M88E1518_driver = {
.name = "Marvell 88E1518",
.uid = 0x1410dd0,
.mask = 0xffffffa,
.features = PHY_GBIT_FEATURES,
.config = &m88e1518_config,
.config = &m88e151x_config,
.startup = &m88e1011s_startup,
.shutdown = &genphy_shutdown,
.readext = &m88e1xxx_phy_extread,
@ -744,8 +700,7 @@ int phy_marvell_init(void)
phy_register(&M88E1118R_driver);
phy_register(&M88E1111S_driver);
phy_register(&M88E1011S_driver);
phy_register(&M88E1510_driver);
phy_register(&M88E1518_driver);
phy_register(&M88E151x_driver);
phy_register(&M88E1680_driver);
return 0;