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yaml
---
r: 171134
b: refs/heads/master
c: 32e5a8d
h: refs/heads/master
v: v3
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Matt Carlson authored and David S. Miller committed Nov 3, 2009
1 parent 1fd8af9 commit 39f6448
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Showing 4 changed files with 47 additions and 3 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: cdd4e09d692bd4f3457b3789279005e112b7696d
refs/heads/master: 32e5a8d651c0dbb02bf82ca954206282e44c4b11
43 changes: 43 additions & 0 deletions trunk/drivers/net/phy/broadcom.c
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,9 @@
#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 */
Expand Down Expand Up @@ -95,11 +98,16 @@
#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 BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
/* LED3 / ~LINKSPD[2] selector */
#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
Expand All @@ -112,6 +120,7 @@
#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)
*/
Expand Down Expand Up @@ -309,6 +318,37 @@ static int bcm54xx_phydsp_config(struct phy_device *phydev)
return err ? err : err2;
}

static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
{
u32 val, orig;

/* Abort if we are using an untested phy. */
if (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 (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
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 */
val |= BCM54XX_SHD_SCR3_DEF_CLK125;
} else {
/* Here, bit 0 _enables_ CLK125 when set */
val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
}
}

if (orig != val)
bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val);
}

static int bcm54xx_config_init(struct phy_device *phydev)
{
int reg, err;
Expand Down Expand Up @@ -336,6 +376,9 @@ static int bcm54xx_config_init(struct phy_device *phydev)
(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)
bcm54xx_adjust_rxrefclk(phydev);

bcm54xx_phydsp_config(phydev);

return 0;
Expand Down
3 changes: 2 additions & 1 deletion trunk/drivers/net/tg3.c
Original file line number Diff line number Diff line change
Expand Up @@ -1100,7 +1100,8 @@ 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;
phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
PHY_BRCM_RX_REFCLK_UNUSED;
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)
Expand Down
2 changes: 1 addition & 1 deletion trunk/include/linux/brcmphy.h
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
#define PHY_BCM_FLAGS_INTF_XAUI 0x00000020
#define PHY_BRCM_WIRESPEED_ENABLE 0x00000100
#define PHY_BRCM_AUTO_PWRDWN_ENABLE 0x00000200
#define PHY_BRCM_APD_CLK125_ENABLE 0x00000400
#define PHY_BRCM_RX_REFCLK_UNUSED 0x00000400
#define PHY_BRCM_STD_IBND_DISABLE 0x00000800
#define PHY_BRCM_EXT_IBND_RX_ENABLE 0x00001000
#define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000
Expand Down

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