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tg3 / broadcom: Add PHY_BRCM_CLEAR_RGMII_MODE flag

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Broadcom 50610M parts changed the default definitions of the RGMII mode
shadow register.  The 5785 needs the RGMII mode selection bits [4:3]
cleared.

The default value of the remaining bits in this register are zero.
Rather than unnecessarily burn an extra bit in the dev_flags member in
an attempt to enumerate all possible combinations, this patch take a
more course grained approach and labels the option as "clear all bits".

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2009-11-02 14:30:40 +00:00 committed by David S. Miller
parent 8649f13d2d
commit 63a14ce449
3 changed files with 8 additions and 0 deletions
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6
drivers/net/phy/broadcom.c
View File

@ -105,6 +105,7 @@
#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 */
@ -330,6 +331,11 @@ static int bcm54xx_config_init(struct phy_device *phydev)
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);
bcm54xx_phydsp_config(phydev);
return 0;

1
drivers/net/tg3.c
View File

@ -1100,6 +1100,7 @@ static int tg3_mdio_init(struct tg3 *tp)
break;
case TG3_PHY_ID_BCM50610:
case TG3_PHY_ID_BCM50610M:
phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE)
phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)

1
include/linux/brcmphy.h
View File

@ -8,4 +8,5 @@
#define PHY_BRCM_STD_IBND_DISABLE 0x00000800
#define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00001000
#define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000
#define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000
#define PHY_BCM_FLAGS_VALID 0x80000000