aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/apm/xgene
diff options
context:
space:
mode:
authorIyappan Subramanian <isubramanian@apm.com>2016-07-25 17:12:43 -0700
committerDavid S. Miller <davem@davemloft.net>2016-07-25 21:51:43 -0700
commit8c1519632fa6cb34a5ff4dddffd4a182c4fae1b6 (patch)
treea8cee4282ee26d042124ad192e62cb0682b824a2 /drivers/net/ethernet/apm/xgene
parentdrivers: net: xgene: Enable MDIO driver (diff)
downloadlinux-dev-8c1519632fa6cb34a5ff4dddffd4a182c4fae1b6.tar.xz
linux-dev-8c1519632fa6cb34a5ff4dddffd4a182c4fae1b6.zip
drivers: net: xgene: Use exported functions
This patch reuses the mdio read/write and phy_register functions and removed the local definitions. Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Tested-by: Fushen Chen <fchen@apm.com> Tested-by: Toan Le <toanle@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--drivers/net/ethernet/apm/xgene/xgene_enet_hw.c97
1 files changed, 9 insertions, 88 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index 27a7a1c960e0..8a2a221a9838 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -381,59 +381,6 @@ static void xgene_enet_rd_mcx_mac(struct xgene_enet_pdata *pdata,
rd_addr);
}
-static int xgene_mii_phy_write(struct xgene_enet_pdata *pdata, int phy_id,
- u32 reg, u16 data)
-{
- u32 addr = 0, wr_data = 0;
- u32 done;
- u8 wait = 10;
-
- PHY_ADDR_SET(&addr, phy_id);
- REG_ADDR_SET(&addr, reg);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
-
- PHY_CONTROL_SET(&wr_data, data);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONTROL_ADDR, wr_data);
- do {
- usleep_range(5, 10);
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
- } while ((done & BUSY_MASK) && wait--);
-
- if (done & BUSY_MASK) {
- netdev_err(pdata->ndev, "MII_MGMT write failed\n");
- return -EBUSY;
- }
-
- return 0;
-}
-
-static int xgene_mii_phy_read(struct xgene_enet_pdata *pdata,
- u8 phy_id, u32 reg)
-{
- u32 addr = 0;
- u32 data, done;
- u8 wait = 10;
-
- PHY_ADDR_SET(&addr, phy_id);
- REG_ADDR_SET(&addr, reg);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, READ_CYCLE_MASK);
- do {
- usleep_range(5, 10);
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
- } while ((done & BUSY_MASK) && wait--);
-
- if (done & BUSY_MASK) {
- netdev_err(pdata->ndev, "MII_MGMT read failed\n");
- return -EBUSY;
- }
-
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_STATUS_ADDR, &data);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, 0);
-
- return data;
-}
-
static void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
{
u32 addr0, addr1;
@@ -762,28 +709,6 @@ static void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
}
}
-static int xgene_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
-{
- struct xgene_enet_pdata *pdata = bus->priv;
- u32 val;
-
- val = xgene_mii_phy_read(pdata, mii_id, regnum);
- netdev_dbg(pdata->ndev, "mdio_rd: bus=%d reg=%d val=%x\n",
- mii_id, regnum, val);
-
- return val;
-}
-
-static int xgene_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
- u16 val)
-{
- struct xgene_enet_pdata *pdata = bus->priv;
-
- netdev_dbg(pdata->ndev, "mdio_wr: bus=%d reg=%d val=%x\n",
- mii_id, regnum, val);
- return xgene_mii_phy_write(pdata, mii_id, regnum, val);
-}
-
static void xgene_enet_adjust_link(struct net_device *ndev)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
@@ -888,8 +813,8 @@ static int xgene_mdiobus_register(struct xgene_enet_pdata *pdata,
struct phy_device *phy;
struct device_node *child_np;
struct device_node *mdio_np = NULL;
+ u32 phy_addr;
int ret;
- u32 phy_id;
if (dev->of_node) {
for_each_child_of_node(dev->of_node, child_np) {
@@ -916,21 +841,17 @@ static int xgene_mdiobus_register(struct xgene_enet_pdata *pdata,
if (ret)
return ret;
- ret = device_property_read_u32(dev, "phy-channel", &phy_id);
+ ret = device_property_read_u32(dev, "phy-channel", &phy_addr);
if (ret)
- ret = device_property_read_u32(dev, "phy-addr", &phy_id);
+ ret = device_property_read_u32(dev, "phy-addr", &phy_addr);
if (ret)
return -EINVAL;
- phy = get_phy_device(mdio, phy_id, false);
- if (IS_ERR(phy))
+ phy = xgene_enet_phy_register(mdio, phy_addr);
+ if (!phy)
return -EIO;
- ret = phy_device_register(phy);
- if (ret)
- phy_device_free(phy);
- else
- pdata->phy_dev = phy;
+ pdata->phy_dev = phy;
return ret;
}
@@ -946,12 +867,12 @@ int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata)
return -ENOMEM;
mdio_bus->name = "APM X-Gene MDIO bus";
- mdio_bus->read = xgene_enet_mdio_read;
- mdio_bus->write = xgene_enet_mdio_write;
+ mdio_bus->read = xgene_mdio_rgmii_read;
+ mdio_bus->write = xgene_mdio_rgmii_write;
snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%s", "xgene-mii",
ndev->name);
- mdio_bus->priv = pdata;
+ mdio_bus->priv = (void __force *)pdata->mcx_mac_addr;
mdio_bus->parent = &pdata->pdev->dev;
ret = xgene_mdiobus_register(pdata, mdio_bus);