SPEAr: Add interface information in initialization

Few Designware peripheral registers need to be modified based on the
ethernet interface selected by the board. This patch supports interface
information in ethernet driver

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Stefan Roese <sr@denx.de>

board/spear/spear300/spear300.c

@@ -22,6 +22,7 @@
  */
 
 #include <common.h>
+#include <miiphy.h>
 #include <netdev.h>
 #include <nand.h>
 #include <asm/io.h>
@@ -64,9 +65,13 @@ void board_nand_init()
 
 int board_eth_init(bd_t *bis)
 {
+	int ret = 0;
+
 #if defined(CONFIG_DESIGNWARE_ETH)
-	return designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY);
-#else
-	return -1;
+	u32 interface = PHY_INTERFACE_MODE_MII;
+	if (designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY,
+				interface) >= 0)
+		ret++;
 #endif
+	return ret;
 }

board/spear/spear310/spear310.c

@@ -23,6 +23,7 @@
  */
 
 #include <common.h>
+#include <miiphy.h>
 #include <netdev.h>
 #include <nand.h>
 #include <asm/io.h>
@@ -68,25 +69,27 @@ int board_eth_init(bd_t *bis)
 	int ret = 0;
 
 #if defined(CONFIG_DESIGNWARE_ETH)
-	if (designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY) < 0)
-		ret += -1;
+	u32 interface = PHY_INTERFACE_MODE_MII;
+	if (designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY,
+				interface) >= 0)
+		ret++;
 #endif
 #if defined(CONFIG_MACB)
 	if (macb_eth_initialize(0, (void *)CONFIG_SYS_MACB0_BASE,
-				CONFIG_MACB0_PHY) < 0)
-		ret += -1;
+				CONFIG_MACB0_PHY) >= 0)
+		ret++;
 
 	if (macb_eth_initialize(1, (void *)CONFIG_SYS_MACB1_BASE,
-				CONFIG_MACB1_PHY) < 0)
-		ret += -1;
+				CONFIG_MACB1_PHY) >= 0)
+		ret++;
 
 	if (macb_eth_initialize(2, (void *)CONFIG_SYS_MACB2_BASE,
-				CONFIG_MACB2_PHY) < 0)
-		ret += -1;
+				CONFIG_MACB2_PHY) >= 0)
+		ret++;
 
 	if (macb_eth_initialize(3, (void *)CONFIG_SYS_MACB3_BASE,
-				CONFIG_MACB3_PHY) < 0)
-		ret += -1;
+				CONFIG_MACB3_PHY) >= 0)
+		ret++;
 #endif
 	return ret;
 }

board/spear/spear320/spear320.c

@@ -23,6 +23,7 @@
  */
 
 #include <common.h>
+#include <miiphy.h>
 #include <netdev.h>
 #include <nand.h>
 #include <asm/io.h>
@@ -31,10 +32,20 @@
 #include <asm/arch/spr_defs.h>
 #include <asm/arch/spr_misc.h>
 
+#define PLGPIO_SEL_36	0xb3000028
+#define PLGPIO_IO_36	0xb3000038
+
 static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
 
+static void spear_phy_reset(void)
+{
+	writel(0x10, PLGPIO_IO_36);
+	writel(0x10, PLGPIO_SEL_36);
+}
+
 int board_init(void)
 {
+	spear_phy_reset();
 	return spear_board_init(MACH_TYPE_SPEAR320);
 }
 
@@ -67,14 +78,17 @@ void board_nand_init()
 int board_eth_init(bd_t *bis)
 {
 	int ret = 0;
+
 #if defined(CONFIG_DESIGNWARE_ETH)
-	if (designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY) < 0)
-		ret += -1;
+	u32 interface = PHY_INTERFACE_MODE_MII;
+	if (designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY,
+				interface) >= 0)
+		ret++;
 #endif
 #if defined(CONFIG_MACB)
 	if (macb_eth_initialize(0, (void *)CONFIG_SYS_MACB0_BASE,
-				CONFIG_MACB0_PHY) < 0)
-		ret += -1;
+				CONFIG_MACB0_PHY) >= 0)
+		ret++;
 #endif
 	return ret;
 }

board/spear/spear600/spear600.c

@@ -22,6 +22,7 @@
  */
 
 #include <common.h>
+#include <miiphy.h>
 #include <netdev.h>
 #include <nand.h>
 #include <asm/io.h>
@@ -59,9 +60,16 @@ void board_nand_init()
 
 int board_eth_init(bd_t *bis)
 {
+	int ret = 0;
+
 #if defined(CONFIG_DESIGNWARE_ETH)
-	return designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY);
-#else
-	return -1;
+	u32 interface = PHY_INTERFACE_MODE_MII;
+#if defined(CONFIG_DW_AUTONEG)
+	interface = PHY_INTERFACE_MODE_GMII;
+#endif
+	if (designware_initialize(0, CONFIG_SPEAR_ETHBASE, CONFIG_DW0_PHY,
+				interface) >= 0)
+		ret++;
 #endif
+	return ret;
 }

drivers/net/designware.c

@@ -171,6 +171,13 @@ static int dw_eth_init(struct eth_device *dev, bd_t *bis)
 	if (priv->speed != SPEED_1000M)
 		conf |= MII_PORTSELECT;
 
+	if ((priv->interface != PHY_INTERFACE_MODE_MII) &&
+		(priv->interface != PHY_INTERFACE_MODE_GMII)) {
+
+		if (priv->speed == SPEED_100M)
+			conf |= FES_100;
+	}
+
 	if (priv->duplex == FULL_DUPLEX)
 		conf |= FULLDPLXMODE;
 
@@ -531,7 +538,7 @@ static int dw_mii_write(const char *devname, u8 addr, u8 reg, u16 val)
 }
 #endif
 
-int designware_initialize(u32 id, ulong base_addr, u32 phy_addr)
+int designware_initialize(u32 id, ulong base_addr, u32 phy_addr, u32 interface)
 {
 	struct eth_device *dev;
 	struct dw_eth_dev *priv;
@@ -565,6 +572,7 @@ int designware_initialize(u32 id, ulong base_addr, u32 phy_addr)
 			DW_DMA_BASE_OFFSET);
 	priv->address = phy_addr;
 	priv->phy_configured = 0;
+	priv->interface = interface;
 
 	if (mac_reset(dev) < 0)
 		return -1;

drivers/net/designware.h

@@ -234,6 +234,7 @@ struct dmamacdescr {
 
 struct dw_eth_dev {
 	u32 address;
+	u32 interface;
 	u32 speed;
 	u32 duplex;
 	u32 tx_currdescnum;

include/netdev.h

@@ -52,7 +52,7 @@ int calxedaxgmac_initialize(u32 id, ulong base_addr);
 int cs8900_initialize(u8 dev_num, int base_addr);
 int davinci_emac_initialize(void);
 int dc21x4x_initialize(bd_t *bis);
-int designware_initialize(u32 id, ulong base_addr, u32 phy_addr);
+int designware_initialize(u32 id, ulong base_addr, u32 phy_addr, u32 interface);
 int dm9000_initialize(bd_t *bis);
 int dnet_eth_initialize(int id, void *regs, unsigned int phy_addr);
 int e1000_initialize(bd_t *bis);