From: Gabor Juhos <juhosg@openwrt.org>
Date: Sun, 13 Nov 2011 11:26:59 +0000 (+0000)
Subject: ar71xx: set MII interface speed from the set_speed callbacks
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=538a9493b96682d55cb024eeec237b6cd25be3af;p=openwrt%2Fstaging%2Fldir.git

ar71xx: set MII interface speed from the set_speed callbacks

SVN-Revision: 29013
---

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c b/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c
index b131818454..be1e603d80 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c
@@ -206,6 +206,36 @@ static void __init ar71xx_mii_ctrl_set_if(unsigned int reg,
 	iounmap(base);
 }
 
+static void ar71xx_mii_ctrl_set_speed(unsigned int reg, unsigned int speed)
+{
+	void __iomem *base;
+	unsigned int mii_speed;
+	u32 t;
+
+	switch (speed) {
+	case SPEED_10:
+		mii_speed =  MII_CTRL_SPEED_10;
+		break;
+	case SPEED_100:
+		mii_speed =  MII_CTRL_SPEED_100;
+		break;
+	case SPEED_1000:
+		mii_speed =  MII_CTRL_SPEED_1000;
+		break;
+	default:
+		BUG();
+	}
+
+	base = ioremap(AR71XX_MII_BASE, AR71XX_MII_SIZE);
+
+	t = __raw_readl(base + reg);
+	t &= ~(MII_CTRL_SPEED_MASK << MII_CTRL_SPEED_SHIFT);
+	t |= mii_speed  << MII_CTRL_SPEED_SHIFT;
+	__raw_writel(t, base + reg);
+
+	iounmap(base);
+}
+
 void __init ar71xx_add_device_mdio(unsigned int id, u32 phy_mask)
 {
 	struct platform_device *mdio_dev;
@@ -321,6 +351,7 @@ static void ar71xx_set_speed_ge0(int speed)
 
 	ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH0_INT_CLOCK,
 			val, AR71XX_ETH0_PLL_SHIFT);
+	ar71xx_mii_ctrl_set_speed(MII_REG_MII0_CTRL, speed);
 }
 
 static void ar71xx_set_speed_ge1(int speed)
@@ -329,6 +360,7 @@ static void ar71xx_set_speed_ge1(int speed)
 
 	ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH1_INT_CLOCK,
 			 val, AR71XX_ETH1_PLL_SHIFT);
+	ar71xx_mii_ctrl_set_speed(MII_REG_MII1_CTRL, speed);
 }
 
 static void ar724x_set_speed_ge0(int speed)
@@ -357,6 +389,7 @@ static void ar91xx_set_speed_ge0(int speed)
 
 	ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH0_INT_CLOCK,
 			 val, AR91XX_ETH0_PLL_SHIFT);
+	ar71xx_mii_ctrl_set_speed(MII_REG_MII0_CTRL, speed);
 }
 
 static void ar91xx_set_speed_ge1(int speed)
@@ -365,6 +398,7 @@ static void ar91xx_set_speed_ge1(int speed)
 
 	ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH1_INT_CLOCK,
 			 val, AR91XX_ETH1_PLL_SHIFT);
+	ar71xx_mii_ctrl_set_speed(MII_REG_MII1_CTRL, speed);
 }
 
 static void ar933x_set_speed_ge0(int speed)
diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
index c447e3e8f2..db5bac7a01 100644
--- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
+++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
@@ -817,6 +817,11 @@ void ar71xx_flash_release(void);
 #define MII_REG_MII1_CTRL	0x04
 
 #define MII_CTRL_IF_MASK	3
+#define MII_CTRL_SPEED_SHIFT	4
+#define MII_CTRL_SPEED_MASK	3
+#define MII_CTRL_SPEED_10	0
+#define MII_CTRL_SPEED_100	1
+#define MII_CTRL_SPEED_1000	2
 
 #define MII0_CTRL_IF_GMII	0
 #define MII0_CTRL_IF_MII	1
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index 9684b623b3..5740549c2b 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -533,7 +533,6 @@ void ag71xx_link_adjust(struct ag71xx *ag)
 	u32 cfg2;
 	u32 ifctl;
 	u32 fifo5;
-	u32 mii_speed;
 
 	if (!ag->link) {
 		ag71xx_hw_stop(ag);
@@ -558,17 +557,14 @@ void ag71xx_link_adjust(struct ag71xx *ag)
 
 	switch (ag->speed) {
 	case SPEED_1000:
-		mii_speed =  MII_CTRL_SPEED_1000;
 		cfg2 |= MAC_CFG2_IF_1000;
 		fifo5 |= FIFO_CFG5_BM;
 		break;
 	case SPEED_100:
-		mii_speed = MII_CTRL_SPEED_100;
 		cfg2 |= MAC_CFG2_IF_10_100;
 		ifctl |= MAC_IFCTL_SPEED;
 		break;
 	case SPEED_10:
-		mii_speed = MII_CTRL_SPEED_10;
 		cfg2 |= MAC_CFG2_IF_10_100;
 		break;
 	default:
@@ -586,8 +582,6 @@ void ag71xx_link_adjust(struct ag71xx *ag)
 	if (pdata->set_speed)
 		pdata->set_speed(ag->speed);
 
-	ag71xx_mii_ctrl_set_speed(ag, mii_speed);
-
 	ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
 	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
 	ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);