broadcom: Add support for BCM50610

This patch adds the BCM50610 to the list of phys supported by the
broadcom driver.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 118 insertions, 1 deletions

diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 7e935924793d..fd4fc66b6d6e 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -17,6 +17,8 @@
 #include <linux/module.h>
 #include <linux/phy.h>
 
+#define PHY_ID_BCM50610         0x0143bd60
+
 #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 */
@@ -54,6 +56,21 @@
 #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.
  */
@@ -88,6 +105,24 @@
 #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_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 */
@@ -145,7 +180,7 @@ static int bcm54xx_exp_read(struct phy_device *phydev, u8 regnum)
         return val;
 }
 
-static int bcm54xx_exp_write(struct phy_device *phydev, u8 regnum, u16 val)
+static int bcm54xx_exp_write(struct phy_device *phydev, u16 regnum, u16 val)
 {
         int ret;
 
@@ -161,6 +196,60 @@ static int bcm54xx_exp_write(struct phy_device *phydev, u8 regnum, u16 val)
         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);
+}
+
+static int bcm50610_a0_workaround(struct phy_device *phydev)
+{
+        int err;
+
+        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;
+
+        err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
+                                MII_BCM54XX_EXP_EXP08_RJCT_2MHZ |
+                                MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE);
+        if (err < 0)
+                goto error;
+
+        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)
+                goto error;
+
+        err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH3,
+                                        MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
+        if (err < 0)
+                goto error;
+
+        err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75,
+                                MII_BCM54XX_EXP_EXP75_VDACCTRL);
+        if (err < 0)
+                goto error;
+
+        err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP96,
+                                MII_BCM54XX_EXP_EXP96_MYST);
+        if (err < 0)
+                goto error;
+
+        err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP97,
+                                MII_BCM54XX_EXP_EXP97_MYST);
+
+error:
+        bcm54xx_auxctl_write(phydev,
+                             MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
+                             MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
+
+        return err;
+}
+
 static int bcm54xx_config_init(struct phy_device *phydev)
 {
         int reg, err;
@@ -182,6 +271,13 @@ static int bcm54xx_config_init(struct phy_device *phydev)
         err = phy_write(phydev, MII_BCM54XX_IMR, reg);
         if (err < 0)
                 return err;
+
+        if (phydev->drv->phy_id == PHY_ID_BCM50610) {
+                err = bcm50610_a0_workaround(phydev);
+                if (err < 0)
+                        return err;
+        }
+
         return 0;
 }
 
@@ -429,6 +525,21 @@ static struct phy_driver bcm5482_driver = {
         .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 int __init broadcom_init(void)
 {
         int ret;
@@ -451,8 +562,13 @@ static int __init broadcom_init(void)
         ret = phy_driver_register(&bcm5482_driver);
         if (ret)
                 goto out_5482;
+        ret = phy_driver_register(&bcm50610_driver);
+        if (ret)
+                goto out_50610;
         return ret;
 
+out_50610:
+        phy_driver_unregister(&bcm5482_driver);
 out_5482:
         phy_driver_unregister(&bcm5481_driver);
 out_5481:
@@ -469,6 +585,7 @@ out_5411:
 
 static void __exit broadcom_exit(void)
 {
+        phy_driver_unregister(&bcm50610_driver);
         phy_driver_unregister(&bcm5482_driver);
         phy_driver_unregister(&bcm5481_driver);
         phy_driver_unregister(&bcm5464_driver);