ramips: add mdio_cfg configuration for the ethernet driver

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22211 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 86 insertions, 0 deletions

diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/ramips_eth_platform.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/ramips_eth_platform.h
index ec1e7d4fa..25e91fec6 100644
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/ramips_eth_platform.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/ramips_eth_platform.h
@@ -25,6 +25,11 @@ struct ramips_eth_platform_data
 	void (*reset_fe)(void);
 	int min_pkt_len;
 	unsigned long sys_freq;
+
+	int speed;
+	int duplex;
+	int tx_fc;
+	int rx_fc;
 };
 
 #endif /* _RAMIPS_ETH_PLATFORM_H */
diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index 4274c923b..a979fe04c 100644
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/skbuff.h>
 #include <linux/etherdevice.h>
+#include <linux/ethtool.h>
 #include <linux/platform_device.h>
 
 #include <ramips_eth_platform.h>
@@ -77,6 +78,47 @@ ramips_hw_set_macaddr(unsigned char *mac)
 		     RAMIPS_GDMA1_MAC_ADRL);
 }
 
+#ifdef CONFIG_RALINK_RT288X
+static void
+ramips_setup_mdio_cfg(struct raeth_priv *re)
+{
+	unsigned int mdio_cfg;
+
+	mdio_cfg = RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
+		   RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
+		   RAMIPS_MDIO_CFG_GP1_FRC_EN;
+
+	if (re->duplex == DUPLEX_FULL)
+		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_DUPLEX;
+
+	if (re->tx_fc)
+		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_TX;
+
+	if (re->rx_fc)
+		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_RX;
+
+	switch (re->speed) {
+	case SPEED_10:
+		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_10;
+		break;
+	case SPEED_100:
+		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_100;
+		break;
+	case SPEED_1000:
+		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_1000;
+		break;
+	default:
+		BUG();
+	}
+
+	ramips_fe_wr(mdio_cfg, RAMIPS_MDIO_CFG);
+}
+#else
+static inline void ramips_setup_mdio_cfg(struct raeth_priv *re)
+{
+}
+#endif /* CONFIG_RALINK_RT288X */
+
 static void
 ramips_cleanup_dma(struct raeth_priv *re)
 {
@@ -334,6 +376,8 @@ ramips_eth_open(struct net_device *dev)
 		     (unsigned long)dev);
 	tasklet_init(&priv->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev);
 
+	ramips_setup_mdio_cfg(priv);
+
 	ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG);
 	ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE);
 	ramips_fe_wr(ramips_fe_rr(RAMIPS_GDMA1_FWD_CFG) &
@@ -442,6 +486,11 @@ ramips_eth_plat_probe(struct platform_device *plat)
 	ramips_dev->netdev_ops = &ramips_eth_netdev_ops;
 
 	priv = netdev_priv(ramips_dev);
+
+	priv->speed = data->speed;
+	priv->duplex = data->duplex;
+	priv->rx_fc = data->rx_fc;
+	priv->tx_fc = data->tx_fc;
 	priv->plat = data;
 
 	err = register_netdev(ramips_dev);
diff --git a/target/linux/ramips/files/drivers/net/ramips_eth.h b/target/linux/ramips/files/drivers/net/ramips_eth.h
index 593dd1d87..ef644c11b 100644
--- a/target/linux/ramips/files/drivers/net/ramips_eth.h
+++ b/target/linux/ramips/files/drivers/net/ramips_eth.h
@@ -122,6 +122,33 @@
 #define RAMIPS_RX_CALC_IDX1		(RAMIPS_PDMA_OFFSET + 0x68)
 #define RAMIPS_RX_DRX_IDX1		(RAMIPS_PDMA_OFFSET + 0x6C)
 
+/* MDIO_CFG register bits */
+#define RAMIPS_MDIO_CFG_AUTO_POLL_EN	BIT(29)
+#define RAMIPS_MDIO_CFG_GP1_BP_EN	BIT(16)
+#define RAMIPS_MDIO_CFG_GP1_FRC_EN	BIT(15)
+#define RAMIPS_MDIO_CFG_GP1_SPEED_10	(0 << 13)
+#define RAMIPS_MDIO_CFG_GP1_SPEED_100	(1 << 13)
+#define RAMIPS_MDIO_CFG_GP1_SPEED_1000	(2 << 13)
+#define RAMIPS_MDIO_CFG_GP1_DUPLEX	BIT(12)
+#define RAMIPS_MDIO_CFG_GP1_FC_TX	BIT(11)
+#define RAMIPS_MDIO_CFG_GP1_FC_RX	BIT(10)
+#define RAMIPS_MDIO_CFG_GP1_LNK_DWN	BIT(9)
+#define RAMIPS_MDIO_CFG_GP1_AN_FAIL	BIT(8)
+#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_1	(0 << 6)
+#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_2	(1 << 6)
+#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_4	(2 << 6)
+#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_8	(3 << 6)
+#define RAMIPS_MDIO_CFG_TURBO_MII_FREQ	BIT(5)
+#define RAMIPS_MDIO_CFG_TURBO_MII_MODE	BIT(4)
+#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_0	(0 << 2)
+#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_200	(1 << 2)
+#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_400	(2 << 2)
+#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_INV	(3 << 2)
+#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_0	0
+#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_200	1
+#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_400	2
+#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_INV	3
+
 /* uni-cast port */
 #define RAMIPS_GDM1_ICS_EN		BIT(22)
 #define RAMIPS_GDM1_TCS_EN		BIT(21)
@@ -201,6 +228,11 @@ struct raeth_priv
 
 	spinlock_t		page_lock;
 	struct ramips_eth_platform_data *plat;
+
+	int			speed;
+	int			duplex;
+	int			tx_fc;
+	int			rx_fc;
 };
 
 #endif /* RAMIPS_ETH_H */