AT91RM9200 Ethernet: Support additional PHYs

Add support for a number of new PHY's in the AT91RM9200 Ethernet driver.
- Teridian 78Q21x3
- SMSC LAN83C185
  (Patch from Luca Gamma)
- National Semiconductor DP83848
  (Patches from Ivan Kuten & Thomas Foldesi)
Signed-off-by: NAndrew Victor <andrew@sanpeople.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/arm/at91_ether.c

@@ -225,6 +225,16 @@ static irqreturn_t at91ether_phy_interrupt(int irq, void *dev_id)
 		if (!(phy & ((1 << 2) | 1)))
 			goto done;
 	}
+	else if (lp->phy_type == MII_T78Q21x3_ID) {			/* ack interrupt in Teridian PHY */
+		read_phy(lp->phy_address, MII_T78Q21INT_REG, &phy);
+		if (!(phy & ((1 << 2) | 1)))
+			goto done;
+	}
+	else if (lp->phy_type == MII_DP83848_ID) {
+		read_phy(lp->phy_address, MII_DPPHYSTS_REG, &phy);	/* ack interrupt in DP83848 PHY */
+		if (!(phy & (1 << 7)))
+			goto done;
+	}
 
 	update_linkspeed(dev, 0);
 
@@ -280,6 +290,19 @@ static void enable_phyirq(struct net_device *dev)
 		dsintr = (1 << 10) | ( 1 << 8);
 		write_phy(lp->phy_address, MII_TPISTATUS, dsintr);
 	}
+	else if (lp->phy_type == MII_T78Q21x3_ID) {	/* for Teridian PHY */
+		read_phy(lp->phy_address, MII_T78Q21INT_REG, &dsintr);
+		dsintr = dsintr | 0x500;		/* set bits 8, 10 */
+		write_phy(lp->phy_address, MII_T78Q21INT_REG, dsintr);
+	}
+	else if (lp->phy_type == MII_DP83848_ID) {	/* National Semiconductor DP83848 PHY */
+		read_phy(lp->phy_address, MII_DPMISR_REG, &dsintr);
+		dsintr = dsintr | 0x3c;			/* set bits 2..5 */
+		write_phy(lp->phy_address, MII_DPMISR_REG, dsintr);
+		read_phy(lp->phy_address, MII_DPMICR_REG, &dsintr);
+		dsintr = dsintr | 0x3;			/* set bits 0,1 */
+		write_phy(lp->phy_address, MII_DPMICR_REG, dsintr);
+	}
 
 	disable_mdi();
 	spin_unlock_irq(&lp->lock);
@@ -323,6 +346,19 @@ static void disable_phyirq(struct net_device *dev)
 		dsintr = ~((1 << 10) | (1 << 8));
 		write_phy(lp->phy_address, MII_TPISTATUS, dsintr);
 	}
+	else if (lp->phy_type == MII_T78Q21x3_ID) {	/* for Teridian PHY */
+		read_phy(lp->phy_address, MII_T78Q21INT_REG, &dsintr);
+		dsintr = dsintr & ~0x500;			/* clear bits 8, 10 */
+		write_phy(lp->phy_address, MII_T78Q21INT_REG, dsintr);
+	}
+	else if (lp->phy_type == MII_DP83848_ID) {	/* National Semiconductor DP83848 PHY */
+		read_phy(lp->phy_address, MII_DPMICR_REG, &dsintr);
+		dsintr = dsintr & ~0x3;				/* clear bits 0, 1 */
+		write_phy(lp->phy_address, MII_DPMICR_REG, dsintr);
+		read_phy(lp->phy_address, MII_DPMISR_REG, &dsintr);
+		dsintr = dsintr & ~0x3c;			/* clear bits 2..5 */
+		write_phy(lp->phy_address, MII_DPMISR_REG, dsintr);
+	}
 
 	disable_mdi();
 	spin_unlock_irq(&lp->lock);
@@ -1062,10 +1098,16 @@ static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_add
 		printk(KERN_INFO "%s: Broadcom BCM5221 PHY\n", dev->name);
 	else if (phy_type == MII_DP83847_ID)
 		printk(KERN_INFO "%s: National Semiconductor DP83847 PHY\n", dev->name);
+	else if (phy_type == MII_DP83848_ID)
+		printk(KERN_INFO "%s: National Semiconductor DP83848 PHY\n", dev->name);
 	else if (phy_type == MII_AC101L_ID)
 		printk(KERN_INFO "%s: Altima AC101L PHY\n", dev->name);
 	else if (phy_type == MII_KS8721_ID)
 		printk(KERN_INFO "%s: Micrel KS8721 PHY\n", dev->name);
+	else if (phy_type == MII_T78Q21x3_ID)
+		printk(KERN_INFO "%s: Teridian 78Q21x3 PHY\n", dev->name);
+	else if (phy_type == MII_LAN83C185_ID)
+		printk(KERN_INFO "%s: SMSC LAN83C185 PHY\n", dev->name);
 
 	return 0;
 }
@@ -1103,8 +1145,11 @@ static int __init at91ether_probe(struct platform_device *pdev)
 			case MII_RTL8201_ID:		/* Realtek RTL8201: PHY_ID1 = 0, PHY_ID2 = 0x8201 */
 			case MII_BCM5221_ID:		/* Broadcom BCM5221: PHY_ID1 = 0x40, PHY_ID2 = 0x61e0 */
 			case MII_DP83847_ID:		/* National Semiconductor DP83847:  */
+			case MII_DP83848_ID:		/* National Semiconductor DP83848:  */
 			case MII_AC101L_ID:		/* Altima AC101L: PHY_ID1 = 0x22, PHY_ID2 = 0x5520 */
 			case MII_KS8721_ID:		/* Micrel KS8721: PHY_ID1 = 0x22, PHY_ID2 = 0x1610 */
+			case MII_T78Q21x3_ID:		/* Teridian 78Q21x3: PHY_ID1 = 0x0E, PHY_ID2 = 7237 */
+			case MII_LAN83C185_ID:		/* SMSC LAN83C185: PHY_ID1 = 0x0007, PHY_ID2 = 0xC0A1 */
 				detected = at91ether_setup(phy_id, phy_address, pdev, ether_clk);
 				break;
 		}

drivers/net/arm/at91_ether.h

@@ -19,16 +19,12 @@
 /* Davicom 9161 PHY */
 #define MII_DM9161_ID		0x0181b880
 #define MII_DM9161A_ID		0x0181b8a0
-
-/* Davicom specific registers */
 #define MII_DSCR_REG		16
 #define MII_DSCSR_REG		17
 #define MII_DSINTR_REG		21
 
 /* Intel LXT971A PHY */
 #define MII_LXT971A_ID		0x001378E0
-
-/* Intel specific registers */
 #define MII_ISINTE_REG		18
 #define MII_ISINTS_REG		19
 #define MII_LEDCTRL_REG		20
@@ -38,19 +34,30 @@
 
 /* Broadcom BCM5221 PHY */
 #define MII_BCM5221_ID		0x004061e0
-
-/* Broadcom specific registers */
 #define MII_BCMINTR_REG		26
 
 /* National Semiconductor DP83847 */
 #define MII_DP83847_ID		0x20005c30
 
+/* National Semiconductor DP83848 */
+#define MII_DP83848_ID		0x20005c90
+#define MII_DPPHYSTS_REG	16
+#define MII_DPMICR_REG		17
+#define MII_DPMISR_REG		18
+
 /* Altima AC101L PHY */
 #define MII_AC101L_ID		0x00225520
 
 /* Micrel KS8721 PHY */
 #define MII_KS8721_ID		0x00221610
 
+/* Teridian 78Q2123/78Q2133 */
+#define MII_T78Q21x3_ID		0x000e7230
+#define MII_T78Q21INT_REG	17
+
+/* SMSC LAN83C185 */
+#define MII_LAN83C185_ID	0x0007C0A0
+
 /* ........................................................................ */
 
 #define MAX_RBUFF_SZ	0x600		/* 1518 rounded up */