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broadcom: Add AC131 phy support 

This patch adds support for the AC131 fast ethernet transceiver.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2009-08-25 10:10:58 +00:00 committed by David S. Miller
parent 4f4598fd0a
commit d7a2ed9248
1 changed files with 158 additions and 0 deletions
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158
drivers/net/phy/broadcom.c
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@ -142,6 +142,35 @@
#define PHY_BCM_FLAGS_MODE_1000BX 0x00000002
#define PHY_BCM_FLAGS_MODE_COPPER 0x00000001
/*****************************************************************************/
/* 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");
@ -436,6 +465,114 @@ static int bcm5481_config_aneg(struct phy_device *phydev)
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;
/* 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 = 0x00206070,
.phy_id_mask = 0xfffffff0,
@ -571,6 +708,21 @@ static struct phy_driver bcm57780_driver = {
.driver = { .owner = THIS_MODULE },
};
static struct phy_driver bcmac131_driver = {
.phy_id = 0x0143bc70,
.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 int __init broadcom_init(void)
{
int ret;
@ -602,8 +754,13 @@ static int __init broadcom_init(void)
ret = phy_driver_register(&bcm57780_driver);
if (ret)
goto out_57780;
ret = phy_driver_register(&bcmac131_driver);
if (ret)
goto out_ac131;
return ret;
out_ac131:
phy_driver_unregister(&bcm57780_driver);
out_57780:
phy_driver_unregister(&bcm50610m_driver);
out_50610m:
@ -626,6 +783,7 @@ out_5411:
static void __exit broadcom_exit(void)
{
phy_driver_unregister(&bcmac131_driver);
phy_driver_unregister(&bcm57780_driver);
phy_driver_unregister(&bcm50610m_driver);
phy_driver_unregister(&bcm50610_driver);