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drivers: usb: lan78xx: add support to control LED mode register #11

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drivers: usb: lan78xx: add support to control LED mode register #11

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22 changes: 22 additions & 0 deletions drivers/net/usb/lan78xx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2410,7 +2410,11 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)

if (phydev->mdio.dev.of_node) {
u32 reg;
u32 led_modes[4];
u16 regval = 0;
int len;
int shifter = 0;
int i;

len = of_property_count_elems_of_size(phydev->mdio.dev.of_node,
"microchip,led-modes",
Expand All @@ -2427,6 +2431,24 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
(len > 2) * HW_CFG_LED2_EN_ |
(len > 3) * HW_CFG_LED3_EN_;
lan78xx_write_reg(dev, HW_CFG, reg);

/* Sanity check */
len = len > 4 ? 4 : len;

ret = of_property_read_u32_array(phydev->mdio.dev.of_node,
"microchip,led-modes",
led_modes,
len);
if (!ret) {
for(i = 0; i < len; i++) {
regval |= (led_modes[i] << shifter);
shifter += 4;
}
lan78xx_mdiobus_write(dev->mdiobus,
MII_ACC_PHY_ADDR,
MII_IDX_LED_MODE_REG,
regval);
}
}
}

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3 changes: 3 additions & 0 deletions drivers/net/usb/lan78xx.h
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Original file line number Diff line number Diff line change
Expand Up @@ -604,6 +604,9 @@
#define MII_DATA (0x124)
#define MII_DATA_MASK_ (0x0000FFFF)

#define MII_ACC_PHY_ADDR (1)
#define MII_IDX_LED_MODE_REG (29)

#define MAC_RGMII_ID (0x128)
#define MAC_RGMII_ID_TXC_DELAY_EN_ (0x00000002)
#define MAC_RGMII_ID_RXC_DELAY_EN_ (0x00000001)
Expand Down