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authorVladimir Ermakov <vooon341@gmail.com>2012-03-17 13:10:50 +0000
committerDavid S. Miller <davem@davemloft.net>2012-03-19 18:02:05 -0400
commitba568335b089e0a27829e3a6117a7e1bf957ad07 (patch)
tree460d6569c4ad623ec8f1aee8d0fcb571b3ac1b4d /drivers/net/ethernet/freescale/fs_enet
parentdc72d99dabb870ca5bd6d9fff674be853bb4a88d (diff)
fs_enet: Add MPC5125 FEC support and PHY interface selection
Add compatible string for MPC5125 FEC. The FEC on MPC5125 additionally supports RMII PHY interface. Configure controller/PHY interface type according to the optional phy-connection-type property in the ethernet node. This property should be either "rmii" or "mii". Signed-off-by: Vladimir Ermakov <vooon341@gmail.com> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/fs_enet')
-rw-r--r--drivers/net/ethernet/freescale/fs_enet/fec.h6
-rw-r--r--drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c20
-rw-r--r--drivers/net/ethernet/freescale/fs_enet/mac-fec.c9
3 files changed, 28 insertions, 7 deletions
diff --git a/drivers/net/ethernet/freescale/fs_enet/fec.h b/drivers/net/ethernet/freescale/fs_enet/fec.h
index e980527e2b99..b9fe5bde432a 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fec.h
+++ b/drivers/net/ethernet/freescale/fs_enet/fec.h
@@ -23,6 +23,10 @@
#define FEC_ECNTRL_ETHER_EN 0x00000002
#define FEC_ECNTRL_RESET 0x00000001
+/* RMII mode enabled only when MII_MODE bit is set too. */
+#define FEC_RCNTRL_RMII_MODE (0x00000100 | \
+ FEC_RCNTRL_MII_MODE | FEC_RCNTRL_FCE)
+#define FEC_RCNTRL_FCE 0x00000020
#define FEC_RCNTRL_BC_REJ 0x00000010
#define FEC_RCNTRL_PROM 0x00000008
#define FEC_RCNTRL_MII_MODE 0x00000004
@@ -33,8 +37,6 @@
#define FEC_TCNTRL_HBC 0x00000002
#define FEC_TCNTRL_GTS 0x00000001
-
-
/*
* Delay to wait for FEC reset command to complete (in us)
*/
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index 999638a7c851..e4e6cd2c5f82 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -790,16 +790,20 @@ static int fs_init_phy(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct phy_device *phydev;
+ phy_interface_t iface;
fep->oldlink = 0;
fep->oldspeed = 0;
fep->oldduplex = -1;
+ iface = fep->fpi->use_rmii ?
+ PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII;
+
phydev = of_phy_connect(dev, fep->fpi->phy_node, &fs_adjust_link, 0,
- PHY_INTERFACE_MODE_MII);
+ iface);
if (!phydev) {
phydev = of_phy_connect_fixed_link(dev, &fs_adjust_link,
- PHY_INTERFACE_MODE_MII);
+ iface);
}
if (!phydev) {
dev_err(&dev->dev, "Could not attach to PHY\n");
@@ -1007,6 +1011,7 @@ static int __devinit fs_enet_probe(struct platform_device *ofdev)
struct fs_platform_info *fpi;
const u32 *data;
const u8 *mac_addr;
+ const char *phy_connection_type;
int privsize, len, ret = -ENODEV;
match = of_match_device(fs_enet_match, &ofdev->dev);
@@ -1035,6 +1040,13 @@ static int __devinit fs_enet_probe(struct platform_device *ofdev)
NULL)))
goto out_free_fpi;
+ if (of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc5125-fec")) {
+ phy_connection_type = of_get_property(ofdev->dev.of_node,
+ "phy-connection-type", NULL);
+ if (phy_connection_type && !strcmp("rmii", phy_connection_type))
+ fpi->use_rmii = 1;
+ }
+
privsize = sizeof(*fep) +
sizeof(struct sk_buff **) *
(fpi->rx_ring + fpi->tx_ring);
@@ -1150,6 +1162,10 @@ static struct of_device_id fs_enet_match[] = {
.compatible = "fsl,mpc5121-fec",
.data = (void *)&fs_fec_ops,
},
+ {
+ .compatible = "fsl,mpc5125-fec",
+ .data = (void *)&fs_fec_ops,
+ },
#else
{
.compatible = "fsl,pq1-fec-enet",
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
index b9fbc83d64a7..9ae6cdbcac2e 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
@@ -322,10 +322,11 @@ static void restart(struct net_device *dev)
FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
#else
/*
- * Only set MII mode - do not touch maximum frame length
+ * Only set MII/RMII mode - do not touch maximum frame length
* configured before.
*/
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE);
+ FS(fecp, r_cntrl, fpi->use_rmii ?
+ FEC_RCNTRL_RMII_MODE : FEC_RCNTRL_MII_MODE);
#endif
/*
* adjust to duplex mode
@@ -381,7 +382,9 @@ static void stop(struct net_device *dev)
/* shut down FEC1? that's where the mii bus is */
if (fpi->has_phy) {
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
+ FS(fecp, r_cntrl, fpi->use_rmii ?
+ FEC_RCNTRL_RMII_MODE :
+ FEC_RCNTRL_MII_MODE); /* MII/RMII enable */
FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
FW(fecp, ievent, FEC_ENET_MII);
FW(fecp, mii_speed, feci->mii_speed);