949 строки
26 KiB
C
949 строки
26 KiB
C
/*
|
|
* drivers/net/phy/broadcom.c
|
|
*
|
|
* Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet
|
|
* transceivers.
|
|
*
|
|
* Copyright (c) 2006 Maciej W. Rozycki
|
|
*
|
|
* Inspired by code written by Amy Fong.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/phy.h>
|
|
#include <linux/brcmphy.h>
|
|
|
|
|
|
#define BRCM_PHY_MODEL(phydev) \
|
|
((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
|
|
|
|
#define BRCM_PHY_REV(phydev) \
|
|
((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
|
|
|
|
|
|
#define MII_BCM54XX_ECR 0x10 /* BCM54xx extended control register */
|
|
#define MII_BCM54XX_ECR_IM 0x1000 /* Interrupt mask */
|
|
#define MII_BCM54XX_ECR_IF 0x0800 /* Interrupt force */
|
|
|
|
#define MII_BCM54XX_ESR 0x11 /* BCM54xx extended status register */
|
|
#define MII_BCM54XX_ESR_IS 0x1000 /* Interrupt status */
|
|
|
|
#define MII_BCM54XX_EXP_DATA 0x15 /* Expansion register data */
|
|
#define MII_BCM54XX_EXP_SEL 0x17 /* Expansion register select */
|
|
#define MII_BCM54XX_EXP_SEL_SSD 0x0e00 /* Secondary SerDes select */
|
|
#define MII_BCM54XX_EXP_SEL_ER 0x0f00 /* Expansion register select */
|
|
|
|
#define MII_BCM54XX_AUX_CTL 0x18 /* Auxiliary control register */
|
|
#define MII_BCM54XX_ISR 0x1a /* BCM54xx interrupt status register */
|
|
#define MII_BCM54XX_IMR 0x1b /* BCM54xx interrupt mask register */
|
|
#define MII_BCM54XX_INT_CRCERR 0x0001 /* CRC error */
|
|
#define MII_BCM54XX_INT_LINK 0x0002 /* Link status changed */
|
|
#define MII_BCM54XX_INT_SPEED 0x0004 /* Link speed change */
|
|
#define MII_BCM54XX_INT_DUPLEX 0x0008 /* Duplex mode changed */
|
|
#define MII_BCM54XX_INT_LRS 0x0010 /* Local receiver status changed */
|
|
#define MII_BCM54XX_INT_RRS 0x0020 /* Remote receiver status changed */
|
|
#define MII_BCM54XX_INT_SSERR 0x0040 /* Scrambler synchronization error */
|
|
#define MII_BCM54XX_INT_UHCD 0x0080 /* Unsupported HCD negotiated */
|
|
#define MII_BCM54XX_INT_NHCD 0x0100 /* No HCD */
|
|
#define MII_BCM54XX_INT_NHCDL 0x0200 /* No HCD link */
|
|
#define MII_BCM54XX_INT_ANPR 0x0400 /* Auto-negotiation page received */
|
|
#define MII_BCM54XX_INT_LC 0x0800 /* All counters below 128 */
|
|
#define MII_BCM54XX_INT_HC 0x1000 /* Counter above 32768 */
|
|
#define MII_BCM54XX_INT_MDIX 0x2000 /* MDIX status change */
|
|
#define MII_BCM54XX_INT_PSERR 0x4000 /* Pair swap error */
|
|
|
|
#define MII_BCM54XX_SHD 0x1c /* 0x1c shadow registers */
|
|
#define MII_BCM54XX_SHD_WRITE 0x8000
|
|
#define MII_BCM54XX_SHD_VAL(x) ((x & 0x1f) << 10)
|
|
#define MII_BCM54XX_SHD_DATA(x) ((x & 0x3ff) << 0)
|
|
|
|
/*
|
|
* AUXILIARY CONTROL SHADOW ACCESS REGISTERS. (PHY REG 0x18)
|
|
*/
|
|
#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
|
|
#define MII_BCM54XX_AUXCTL_ACTL_TX_6DB 0x0400
|
|
#define MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA 0x0800
|
|
|
|
#define MII_BCM54XX_AUXCTL_MISC_WREN 0x8000
|
|
#define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX 0x0200
|
|
#define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC 0x7000
|
|
#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC 0x0007
|
|
|
|
#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
|
|
|
|
|
|
/*
|
|
* Broadcom LED source encodings. These are used in BCM5461, BCM5481,
|
|
* BCM5482, and possibly some others.
|
|
*/
|
|
#define BCM_LED_SRC_LINKSPD1 0x0
|
|
#define BCM_LED_SRC_LINKSPD2 0x1
|
|
#define BCM_LED_SRC_XMITLED 0x2
|
|
#define BCM_LED_SRC_ACTIVITYLED 0x3
|
|
#define BCM_LED_SRC_FDXLED 0x4
|
|
#define BCM_LED_SRC_SLAVE 0x5
|
|
#define BCM_LED_SRC_INTR 0x6
|
|
#define BCM_LED_SRC_QUALITY 0x7
|
|
#define BCM_LED_SRC_RCVLED 0x8
|
|
#define BCM_LED_SRC_MULTICOLOR1 0xa
|
|
#define BCM_LED_SRC_OPENSHORT 0xb
|
|
#define BCM_LED_SRC_OFF 0xe /* Tied high */
|
|
#define BCM_LED_SRC_ON 0xf /* Tied low */
|
|
|
|
|
|
/*
|
|
* BCM5482: Shadow registers
|
|
* Shadow values go into bits [14:10] of register 0x1c to select a shadow
|
|
* register to access.
|
|
*/
|
|
/* 00101: Spare Control Register 3 */
|
|
#define BCM54XX_SHD_SCR3 0x05
|
|
#define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001
|
|
#define BCM54XX_SHD_SCR3_DLLAPD_DIS 0x0002
|
|
#define BCM54XX_SHD_SCR3_TRDDAPD 0x0004
|
|
|
|
/* 01010: Auto Power-Down */
|
|
#define BCM54XX_SHD_APD 0x0a
|
|
#define BCM54XX_SHD_APD_EN 0x0020
|
|
|
|
#define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
|
|
/* LED3 / ~LINKSPD[2] selector */
|
|
#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
|
|
/* LED1 / ~LINKSPD[1] selector */
|
|
#define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
|
|
#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */
|
|
#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
|
|
#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */
|
|
#define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */
|
|
#define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */
|
|
#define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */
|
|
|
|
|
|
/*
|
|
* EXPANSION SHADOW ACCESS REGISTERS. (PHY REG 0x15, 0x16, and 0x17)
|
|
*/
|
|
#define MII_BCM54XX_EXP_AADJ1CH0 0x001f
|
|
#define MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN 0x0200
|
|
#define MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF 0x0100
|
|
#define MII_BCM54XX_EXP_AADJ1CH3 0x601f
|
|
#define MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ 0x0002
|
|
#define MII_BCM54XX_EXP_EXP08 0x0F08
|
|
#define MII_BCM54XX_EXP_EXP08_RJCT_2MHZ 0x0001
|
|
#define MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE 0x0200
|
|
#define MII_BCM54XX_EXP_EXP75 0x0f75
|
|
#define MII_BCM54XX_EXP_EXP75_VDACCTRL 0x003c
|
|
#define MII_BCM54XX_EXP_EXP75_CM_OSC 0x0001
|
|
#define MII_BCM54XX_EXP_EXP96 0x0f96
|
|
#define MII_BCM54XX_EXP_EXP96_MYST 0x0010
|
|
#define MII_BCM54XX_EXP_EXP97 0x0f97
|
|
#define MII_BCM54XX_EXP_EXP97_MYST 0x0c0c
|
|
|
|
/*
|
|
* BCM5482: Secondary SerDes registers
|
|
*/
|
|
#define BCM5482_SSD_1000BX_CTL 0x00 /* 1000BASE-X Control */
|
|
#define BCM5482_SSD_1000BX_CTL_PWRDOWN 0x0800 /* Power-down SSD */
|
|
#define BCM5482_SSD_SGMII_SLAVE 0x15 /* SGMII Slave Register */
|
|
#define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
|
|
#define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Fast Ethernet Transceiver definitions. */
|
|
/*****************************************************************************/
|
|
|
|
#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */
|
|
#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */
|
|
#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */
|
|
#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */
|
|
#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */
|
|
#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */
|
|
|
|
#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */
|
|
#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */
|
|
|
|
|
|
/*** Shadow register definitions ***/
|
|
|
|
#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */
|
|
#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */
|
|
|
|
#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */
|
|
#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003
|
|
#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001
|
|
|
|
#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
|
|
#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
|
|
|
|
|
|
MODULE_DESCRIPTION("Broadcom PHY driver");
|
|
MODULE_AUTHOR("Maciej W. Rozycki");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* Indirect register access functions for the 1000BASE-T/100BASE-TX/10BASE-T
|
|
* 0x1c shadow registers.
|
|
*/
|
|
static int bcm54xx_shadow_read(struct phy_device *phydev, u16 shadow)
|
|
{
|
|
phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow));
|
|
return MII_BCM54XX_SHD_DATA(phy_read(phydev, MII_BCM54XX_SHD));
|
|
}
|
|
|
|
static int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow, u16 val)
|
|
{
|
|
return phy_write(phydev, MII_BCM54XX_SHD,
|
|
MII_BCM54XX_SHD_WRITE |
|
|
MII_BCM54XX_SHD_VAL(shadow) |
|
|
MII_BCM54XX_SHD_DATA(val));
|
|
}
|
|
|
|
/* Indirect register access functions for the Expansion Registers */
|
|
static int bcm54xx_exp_read(struct phy_device *phydev, u16 regnum)
|
|
{
|
|
int val;
|
|
|
|
val = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
val = phy_read(phydev, MII_BCM54XX_EXP_DATA);
|
|
|
|
/* Restore default value. It's O.K. if this write fails. */
|
|
phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
|
|
|
|
return val;
|
|
}
|
|
|
|
static int bcm54xx_exp_write(struct phy_device *phydev, u16 regnum, u16 val)
|
|
{
|
|
int ret;
|
|
|
|
ret = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = phy_write(phydev, MII_BCM54XX_EXP_DATA, val);
|
|
|
|
/* Restore default value. It's O.K. if this write fails. */
|
|
phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
|
|
{
|
|
return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
|
|
}
|
|
|
|
/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
|
|
static int bcm50610_a0_workaround(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH0,
|
|
MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
|
|
MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH3,
|
|
MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75,
|
|
MII_BCM54XX_EXP_EXP75_VDACCTRL);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP96,
|
|
MII_BCM54XX_EXP_EXP96_MYST);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP97,
|
|
MII_BCM54XX_EXP_EXP97_MYST);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int bcm54xx_phydsp_config(struct phy_device *phydev)
|
|
{
|
|
int err, err2;
|
|
|
|
/* Enable the SMDSP clock */
|
|
err = bcm54xx_auxctl_write(phydev,
|
|
MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
|
|
MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
|
|
MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
|
|
BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
|
|
/* Clear bit 9 to fix a phy interop issue. */
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
|
|
MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
if (phydev->drv->phy_id == PHY_ID_BCM50610) {
|
|
err = bcm50610_a0_workaround(phydev);
|
|
if (err < 0)
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
|
|
int val;
|
|
|
|
val = bcm54xx_exp_read(phydev, MII_BCM54XX_EXP_EXP75);
|
|
if (val < 0)
|
|
goto error;
|
|
|
|
val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
|
|
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75, val);
|
|
}
|
|
|
|
error:
|
|
/* Disable the SMDSP clock */
|
|
err2 = bcm54xx_auxctl_write(phydev,
|
|
MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
|
|
MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
|
|
|
|
/* Return the first error reported. */
|
|
return err ? err : err2;
|
|
}
|
|
|
|
static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
|
|
{
|
|
u32 orig;
|
|
int val;
|
|
bool clk125en = true;
|
|
|
|
/* Abort if we are using an untested phy. */
|
|
if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 &&
|
|
BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
|
|
BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M)
|
|
return;
|
|
|
|
val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_SCR3);
|
|
if (val < 0)
|
|
return;
|
|
|
|
orig = val;
|
|
|
|
if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
|
|
BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
|
|
BRCM_PHY_REV(phydev) >= 0x3) {
|
|
/*
|
|
* Here, bit 0 _disables_ CLK125 when set.
|
|
* This bit is set by default.
|
|
*/
|
|
clk125en = false;
|
|
} else {
|
|
if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
|
|
/* Here, bit 0 _enables_ CLK125 when set */
|
|
val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
|
|
clk125en = false;
|
|
}
|
|
}
|
|
|
|
if (clk125en == false ||
|
|
(phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
|
|
val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS;
|
|
else
|
|
val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;
|
|
|
|
if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY)
|
|
val |= BCM54XX_SHD_SCR3_TRDDAPD;
|
|
|
|
if (orig != val)
|
|
bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val);
|
|
|
|
val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_APD);
|
|
if (val < 0)
|
|
return;
|
|
|
|
orig = val;
|
|
|
|
if (clk125en == false ||
|
|
(phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
|
|
val |= BCM54XX_SHD_APD_EN;
|
|
else
|
|
val &= ~BCM54XX_SHD_APD_EN;
|
|
|
|
if (orig != val)
|
|
bcm54xx_shadow_write(phydev, BCM54XX_SHD_APD, val);
|
|
}
|
|
|
|
static int bcm54xx_config_init(struct phy_device *phydev)
|
|
{
|
|
int reg, err;
|
|
|
|
reg = phy_read(phydev, MII_BCM54XX_ECR);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
/* Mask interrupts globally. */
|
|
reg |= MII_BCM54XX_ECR_IM;
|
|
err = phy_write(phydev, MII_BCM54XX_ECR, reg);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Unmask events we are interested in. */
|
|
reg = ~(MII_BCM54XX_INT_DUPLEX |
|
|
MII_BCM54XX_INT_SPEED |
|
|
MII_BCM54XX_INT_LINK);
|
|
err = phy_write(phydev, MII_BCM54XX_IMR, reg);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
|
|
BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
|
|
(phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
|
|
bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0);
|
|
|
|
if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) ||
|
|
(phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) ||
|
|
(phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
|
|
bcm54xx_adjust_rxrefclk(phydev);
|
|
|
|
bcm54xx_phydsp_config(phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm5482_config_init(struct phy_device *phydev)
|
|
{
|
|
int err, reg;
|
|
|
|
err = bcm54xx_config_init(phydev);
|
|
|
|
if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
|
|
/*
|
|
* Enable secondary SerDes and its use as an LED source
|
|
*/
|
|
reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_SSD);
|
|
bcm54xx_shadow_write(phydev, BCM5482_SHD_SSD,
|
|
reg |
|
|
BCM5482_SHD_SSD_LEDM |
|
|
BCM5482_SHD_SSD_EN);
|
|
|
|
/*
|
|
* Enable SGMII slave mode and auto-detection
|
|
*/
|
|
reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
|
|
err = bcm54xx_exp_read(phydev, reg);
|
|
if (err < 0)
|
|
return err;
|
|
err = bcm54xx_exp_write(phydev, reg, err |
|
|
BCM5482_SSD_SGMII_SLAVE_EN |
|
|
BCM5482_SSD_SGMII_SLAVE_AD);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/*
|
|
* Disable secondary SerDes powerdown
|
|
*/
|
|
reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
|
|
err = bcm54xx_exp_read(phydev, reg);
|
|
if (err < 0)
|
|
return err;
|
|
err = bcm54xx_exp_write(phydev, reg,
|
|
err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/*
|
|
* Select 1000BASE-X register set (primary SerDes)
|
|
*/
|
|
reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_MODE);
|
|
bcm54xx_shadow_write(phydev, BCM5482_SHD_MODE,
|
|
reg | BCM5482_SHD_MODE_1000BX);
|
|
|
|
/*
|
|
* LED1=ACTIVITYLED, LED3=LINKSPD[2]
|
|
* (Use LED1 as secondary SerDes ACTIVITY LED)
|
|
*/
|
|
bcm54xx_shadow_write(phydev, BCM5482_SHD_LEDS1,
|
|
BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
|
|
BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
|
|
|
|
/*
|
|
* Auto-negotiation doesn't seem to work quite right
|
|
* in this mode, so we disable it and force it to the
|
|
* right speed/duplex setting. Only 'link status'
|
|
* is important.
|
|
*/
|
|
phydev->autoneg = AUTONEG_DISABLE;
|
|
phydev->speed = SPEED_1000;
|
|
phydev->duplex = DUPLEX_FULL;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int bcm5482_read_status(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = genphy_read_status(phydev);
|
|
|
|
if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
|
|
/*
|
|
* Only link status matters for 1000Base-X mode, so force
|
|
* 1000 Mbit/s full-duplex status
|
|
*/
|
|
if (phydev->link) {
|
|
phydev->speed = SPEED_1000;
|
|
phydev->duplex = DUPLEX_FULL;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int bcm54xx_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int reg;
|
|
|
|
/* Clear pending interrupts. */
|
|
reg = phy_read(phydev, MII_BCM54XX_ISR);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm54xx_config_intr(struct phy_device *phydev)
|
|
{
|
|
int reg, err;
|
|
|
|
reg = phy_read(phydev, MII_BCM54XX_ECR);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
reg &= ~MII_BCM54XX_ECR_IM;
|
|
else
|
|
reg |= MII_BCM54XX_ECR_IM;
|
|
|
|
err = phy_write(phydev, MII_BCM54XX_ECR, reg);
|
|
return err;
|
|
}
|
|
|
|
static int bcm5481_config_aneg(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
/* Aneg firsly. */
|
|
ret = genphy_config_aneg(phydev);
|
|
|
|
/* Then we can set up the delay. */
|
|
if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
|
|
u16 reg;
|
|
|
|
/*
|
|
* There is no BCM5481 specification available, so down
|
|
* here is everything we know about "register 0x18". This
|
|
* at least helps BCM5481 to successfully receive packets
|
|
* on MPC8360E-RDK board. Peter Barada <peterb@logicpd.com>
|
|
* says: "This sets delay between the RXD and RXC signals
|
|
* instead of using trace lengths to achieve timing".
|
|
*/
|
|
|
|
/* Set RDX clk delay. */
|
|
reg = 0x7 | (0x7 << 12);
|
|
phy_write(phydev, 0x18, reg);
|
|
|
|
reg = phy_read(phydev, 0x18);
|
|
/* Set RDX-RXC skew. */
|
|
reg |= (1 << 8);
|
|
/* Write bits 14:0. */
|
|
reg |= (1 << 15);
|
|
phy_write(phydev, 0x18, reg);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
|
|
{
|
|
int val;
|
|
|
|
val = phy_read(phydev, reg);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
return phy_write(phydev, reg, val | set);
|
|
}
|
|
|
|
static int brcm_fet_config_init(struct phy_device *phydev)
|
|
{
|
|
int reg, err, err2, brcmtest;
|
|
|
|
/* Reset the PHY to bring it to a known state. */
|
|
err = phy_write(phydev, MII_BMCR, BMCR_RESET);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
reg = phy_read(phydev, MII_BRCM_FET_INTREG);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
/* Unmask events we are interested in and mask interrupts globally. */
|
|
reg = MII_BRCM_FET_IR_DUPLEX_EN |
|
|
MII_BRCM_FET_IR_SPEED_EN |
|
|
MII_BRCM_FET_IR_LINK_EN |
|
|
MII_BRCM_FET_IR_ENABLE |
|
|
MII_BRCM_FET_IR_MASK;
|
|
|
|
err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Enable shadow register access */
|
|
brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
|
|
if (brcmtest < 0)
|
|
return brcmtest;
|
|
|
|
reg = brcmtest | MII_BRCM_FET_BT_SRE;
|
|
|
|
err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Set the LED mode */
|
|
reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
|
|
if (reg < 0) {
|
|
err = reg;
|
|
goto done;
|
|
}
|
|
|
|
reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
|
|
reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
|
|
|
|
err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
|
|
if (err < 0)
|
|
goto done;
|
|
|
|
/* Enable auto MDIX */
|
|
err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
|
|
MII_BRCM_FET_SHDW_MC_FAME);
|
|
if (err < 0)
|
|
goto done;
|
|
|
|
if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
|
|
/* Enable auto power down */
|
|
err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
|
|
MII_BRCM_FET_SHDW_AS2_APDE);
|
|
}
|
|
|
|
done:
|
|
/* Disable shadow register access */
|
|
err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
|
|
if (!err)
|
|
err = err2;
|
|
|
|
return err;
|
|
}
|
|
|
|
static int brcm_fet_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int reg;
|
|
|
|
/* Clear pending interrupts. */
|
|
reg = phy_read(phydev, MII_BRCM_FET_INTREG);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int brcm_fet_config_intr(struct phy_device *phydev)
|
|
{
|
|
int reg, err;
|
|
|
|
reg = phy_read(phydev, MII_BRCM_FET_INTREG);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
reg &= ~MII_BRCM_FET_IR_MASK;
|
|
else
|
|
reg |= MII_BRCM_FET_IR_MASK;
|
|
|
|
err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
|
|
return err;
|
|
}
|
|
|
|
static struct phy_driver bcm5411_driver = {
|
|
.phy_id = PHY_ID_BCM5411,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5411",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm5421_driver = {
|
|
.phy_id = PHY_ID_BCM5421,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5421",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm5461_driver = {
|
|
.phy_id = PHY_ID_BCM5461,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5461",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm5464_driver = {
|
|
.phy_id = PHY_ID_BCM5464,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5464",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm5481_driver = {
|
|
.phy_id = PHY_ID_BCM5481,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5481",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = bcm5481_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm5482_driver = {
|
|
.phy_id = PHY_ID_BCM5482,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5482",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm5482_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = bcm5482_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm50610_driver = {
|
|
.phy_id = PHY_ID_BCM50610,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM50610",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm50610m_driver = {
|
|
.phy_id = PHY_ID_BCM50610M,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM50610M",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm57780_driver = {
|
|
.phy_id = PHY_ID_BCM57780,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM57780",
|
|
.features = PHY_GBIT_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = bcm54xx_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = bcm54xx_ack_interrupt,
|
|
.config_intr = bcm54xx_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcmac131_driver = {
|
|
.phy_id = PHY_ID_BCMAC131,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCMAC131",
|
|
.features = PHY_BASIC_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = brcm_fet_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = brcm_fet_ack_interrupt,
|
|
.config_intr = brcm_fet_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static struct phy_driver bcm5241_driver = {
|
|
.phy_id = PHY_ID_BCM5241,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Broadcom BCM5241",
|
|
.features = PHY_BASIC_FEATURES |
|
|
SUPPORTED_Pause | SUPPORTED_Asym_Pause,
|
|
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
|
|
.config_init = brcm_fet_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = brcm_fet_ack_interrupt,
|
|
.config_intr = brcm_fet_config_intr,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
static int __init broadcom_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = phy_driver_register(&bcm5411_driver);
|
|
if (ret)
|
|
goto out_5411;
|
|
ret = phy_driver_register(&bcm5421_driver);
|
|
if (ret)
|
|
goto out_5421;
|
|
ret = phy_driver_register(&bcm5461_driver);
|
|
if (ret)
|
|
goto out_5461;
|
|
ret = phy_driver_register(&bcm5464_driver);
|
|
if (ret)
|
|
goto out_5464;
|
|
ret = phy_driver_register(&bcm5481_driver);
|
|
if (ret)
|
|
goto out_5481;
|
|
ret = phy_driver_register(&bcm5482_driver);
|
|
if (ret)
|
|
goto out_5482;
|
|
ret = phy_driver_register(&bcm50610_driver);
|
|
if (ret)
|
|
goto out_50610;
|
|
ret = phy_driver_register(&bcm50610m_driver);
|
|
if (ret)
|
|
goto out_50610m;
|
|
ret = phy_driver_register(&bcm57780_driver);
|
|
if (ret)
|
|
goto out_57780;
|
|
ret = phy_driver_register(&bcmac131_driver);
|
|
if (ret)
|
|
goto out_ac131;
|
|
ret = phy_driver_register(&bcm5241_driver);
|
|
if (ret)
|
|
goto out_5241;
|
|
return ret;
|
|
|
|
out_5241:
|
|
phy_driver_unregister(&bcmac131_driver);
|
|
out_ac131:
|
|
phy_driver_unregister(&bcm57780_driver);
|
|
out_57780:
|
|
phy_driver_unregister(&bcm50610m_driver);
|
|
out_50610m:
|
|
phy_driver_unregister(&bcm50610_driver);
|
|
out_50610:
|
|
phy_driver_unregister(&bcm5482_driver);
|
|
out_5482:
|
|
phy_driver_unregister(&bcm5481_driver);
|
|
out_5481:
|
|
phy_driver_unregister(&bcm5464_driver);
|
|
out_5464:
|
|
phy_driver_unregister(&bcm5461_driver);
|
|
out_5461:
|
|
phy_driver_unregister(&bcm5421_driver);
|
|
out_5421:
|
|
phy_driver_unregister(&bcm5411_driver);
|
|
out_5411:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit broadcom_exit(void)
|
|
{
|
|
phy_driver_unregister(&bcm5241_driver);
|
|
phy_driver_unregister(&bcmac131_driver);
|
|
phy_driver_unregister(&bcm57780_driver);
|
|
phy_driver_unregister(&bcm50610m_driver);
|
|
phy_driver_unregister(&bcm50610_driver);
|
|
phy_driver_unregister(&bcm5482_driver);
|
|
phy_driver_unregister(&bcm5481_driver);
|
|
phy_driver_unregister(&bcm5464_driver);
|
|
phy_driver_unregister(&bcm5461_driver);
|
|
phy_driver_unregister(&bcm5421_driver);
|
|
phy_driver_unregister(&bcm5411_driver);
|
|
}
|
|
|
|
module_init(broadcom_init);
|
|
module_exit(broadcom_exit);
|
|
|
|
static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
|
|
{ PHY_ID_BCM5411, 0xfffffff0 },
|
|
{ PHY_ID_BCM5421, 0xfffffff0 },
|
|
{ PHY_ID_BCM5461, 0xfffffff0 },
|
|
{ PHY_ID_BCM5464, 0xfffffff0 },
|
|
{ PHY_ID_BCM5482, 0xfffffff0 },
|
|
{ PHY_ID_BCM5482, 0xfffffff0 },
|
|
{ PHY_ID_BCM50610, 0xfffffff0 },
|
|
{ PHY_ID_BCM50610M, 0xfffffff0 },
|
|
{ PHY_ID_BCM57780, 0xfffffff0 },
|
|
{ PHY_ID_BCMAC131, 0xfffffff0 },
|
|
{ PHY_ID_BCM5241, 0xfffffff0 },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(mdio, broadcom_tbl);
|