phylib: Add generic 10G driver

Very incomplete, but will allow for binding an ethernet controller
to it.

Signed-off-by: Andy Fleming <afleming@gmail.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 1cde2b2..18714fe 100644 (file)
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -30,6 +30,7 @@
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/phy.h>
+#include <linux/mdio.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
 
@@ -52,6 +53,7 @@ static void phy_device_release(struct device *dev)
 
 enum genphy_driver {
        GENPHY_DRV_1G,
+       GENPHY_DRV_10G,
        GENPHY_DRV_MAX
 };
 
@@ -769,6 +771,12 @@ static int genphy_config_advert(struct phy_device *phydev)
        return changed;
 }
 
+int gen10g_config_advert(struct phy_device *dev)
+{
+       return 0;
+}
+EXPORT_SYMBOL(gen10g_config_advert);
+
 /**
  * genphy_setup_forced - configures/forces speed/duplex from @phydev
  * @phydev: target phy_device struct
@@ -816,6 +824,12 @@ int genphy_restart_aneg(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_restart_aneg);
 
+int gen10g_restart_aneg(struct phy_device *phydev)
+{
+       return 0;
+}
+EXPORT_SYMBOL(gen10g_restart_aneg);
+
 /**
  * genphy_config_aneg - restart auto-negotiation or write BMCR
  * @phydev: target phy_device struct
@@ -857,6 +871,12 @@ int genphy_config_aneg(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_config_aneg);
 
+int gen10g_config_aneg(struct phy_device *phydev)
+{
+       return 0;
+}
+EXPORT_SYMBOL(gen10g_config_aneg);
+
 /**
  * genphy_update_link - update link status in @phydev
  * @phydev: target phy_device struct
@@ -988,6 +1008,34 @@ int genphy_read_status(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_read_status);
 
+int gen10g_read_status(struct phy_device *phydev)
+{
+       int devad, reg;
+       u32 mmd_mask = phydev->c45_ids.devices_in_package;
+
+       phydev->link = 1;
+
+       /* For now just lie and say it's 10G all the time */
+       phydev->speed = SPEED_10000;
+       phydev->duplex = DUPLEX_FULL;
+
+       for (devad = 0; mmd_mask; devad++, mmd_mask = mmd_mask >> 1) {
+               if (!(mmd_mask & 1))
+                       continue;
+
+               /* Read twice because link state is latched and a
+                * read moves the current state into the register
+                */
+               phy_read_mmd(phydev, devad, MDIO_STAT1);
+               reg = phy_read_mmd(phydev, devad, MDIO_STAT1);
+               if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS))
+                       phydev->link = 0;
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL(gen10g_read_status);
+
 static int genphy_config_init(struct phy_device *phydev)
 {
        int val;
@@ -1033,6 +1081,16 @@ static int genphy_config_init(struct phy_device *phydev)
 
        return 0;
 }
+
+static int gen10g_config_init(struct phy_device *phydev)
+{
+       /* Temporarily just say we support everything */
+       phydev->supported = SUPPORTED_10000baseT_Full;
+       phydev->advertising = SUPPORTED_10000baseT_Full;
+
+       return 0;
+}
+
 int genphy_suspend(struct phy_device *phydev)
 {
        int value;
@@ -1048,6 +1106,12 @@ int genphy_suspend(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_suspend);
 
+int gen10g_suspend(struct phy_device *phydev)
+{
+       return 0;
+}
+EXPORT_SYMBOL(gen10g_suspend);
+
 int genphy_resume(struct phy_device *phydev)
 {
        int value;
@@ -1063,6 +1127,12 @@ int genphy_resume(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_resume);
 
+int gen10g_resume(struct phy_device *phydev)
+{
+       return 0;
+}
+EXPORT_SYMBOL(gen10g_resume);
+
 /**
  * phy_probe - probe and init a PHY device
  * @dev: device to probe and init
@@ -1195,6 +1265,17 @@ static struct phy_driver genphy_driver[] = {
        .suspend        = genphy_suspend,
        .resume         = genphy_resume,
        .driver         = { .owner = THIS_MODULE, },
+}, {
+       .phy_id         = 0xffffffff,
+       .phy_id_mask    = 0xffffffff,
+       .name           = "Generic 10G PHY",
+       .config_init    = gen10g_config_init,
+       .features       = 0,
+       .config_aneg    = gen10g_config_aneg,
+       .read_status    = gen10g_read_status,
+       .suspend        = gen10g_suspend,
+       .resume         = gen10g_resume,
+       .driver         = {.owner = THIS_MODULE, },
 } };
 
 static int __init phy_init(void)