da850: Add RMII support for EMAC

[people/ms/u-boot.git] / drivers / net / davinci_emac.c

diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index e06896fea710fa8141a03f74adb8d03bbd89ef06..43a3d79dc569dcf634a87f86f577cd895932070f 100644 (file)
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -243,8 +243,35 @@ static int gen_get_link_speed(int phy_addr)
 {
        u_int16_t       tmp;
 
-       if (davinci_eth_phy_read(phy_addr, MII_STATUS_REG, &tmp) && (tmp & 0x04))
+       if (davinci_eth_phy_read(phy_addr, MII_STATUS_REG, &tmp) &&
+                       (tmp & 0x04)) {
+#if defined(CONFIG_DRIVER_TI_EMAC_USE_RMII) && \
+               defined(CONFIG_MACH_DAVINCI_DA850_EVM)
+               davinci_eth_phy_read(phy_addr, PHY_ANLPAR, &tmp);
+
+               /* Speed doesn't matter, there is no setting for it in EMAC. */
+               if (tmp & (PHY_ANLPAR_TXFD | PHY_ANLPAR_10FD)) {
+                       /* set EMAC for Full Duplex  */
+                       writel(EMAC_MACCONTROL_MIIEN_ENABLE |
+                                       EMAC_MACCONTROL_FULLDUPLEX_ENABLE,
+                                       &adap_emac->MACCONTROL);
+               } else {
+                       /*set EMAC for Half Duplex  */
+                       writel(EMAC_MACCONTROL_MIIEN_ENABLE,
+                                       &adap_emac->MACCONTROL);
+               }
+
+               if (tmp & (PHY_ANLPAR_TXFD | PHY_ANLPAR_TX))
+                       writel(readl(&adap_emac->MACCONTROL) |
+                                       EMAC_MACCONTROL_RMIISPEED_100,
+                                        &adap_emac->MACCONTROL);
+               else
+                       writel(readl(&adap_emac->MACCONTROL) &
+                                       ~EMAC_MACCONTROL_RMIISPEED_100,
+                                        &adap_emac->MACCONTROL);
+#endif
                return(1);
+       }
 
        return(0);
 }
@@ -326,6 +353,12 @@ static int davinci_eth_open(struct eth_device *dev, bd_t *bis)
        }
 #endif
 
+#if defined(CONFIG_DRIVER_TI_EMAC_USE_RMII) && \
+       defined(CONFIG_MACH_DAVINCI_DA850_EVM)
+       adap_ewrap->c0rxen = adap_ewrap->c1rxen = adap_ewrap->c2rxen = 0;
+       adap_ewrap->c0txen = adap_ewrap->c1txen = adap_ewrap->c2txen = 0;
+       adap_ewrap->c0miscen = adap_ewrap->c1miscen = adap_ewrap->c2miscen = 0;
+#endif
        rx_desc = emac_rx_desc;
 
        writel(1, &adap_emac->TXCONTROL);
@@ -480,6 +513,12 @@ static void davinci_eth_close(struct eth_device *dev)
        writel(0, &adap_ewrap->EWCTL);
 #endif
 
+#if defined(CONFIG_DRIVER_TI_EMAC_USE_RMII) && \
+       defined(CONFIG_MACH_DAVINCI_DA850_EVM)
+       adap_ewrap->c0rxen = adap_ewrap->c1rxen = adap_ewrap->c2rxen = 0;
+       adap_ewrap->c0txen = adap_ewrap->c1txen = adap_ewrap->c2txen = 0;
+       adap_ewrap->c0miscen = adap_ewrap->c1miscen = adap_ewrap->c2miscen = 0;
+#endif
        debug_emac("- emac_close\n");
 }