summaryrefslogtreecommitdiffstats
path: root/openwrt/package/linux/kernel-patches/316-b44_mii_phy.patch
blob: ace58c9631e4511e879fbd980fc59669d7b24ba0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
--- linux-2.4.30.old/drivers/net/b44.c	2005-05-01 23:30:22.000000000 +0400
+++ linux-2.4.30/drivers/net/b44.c	2005-05-10 16:51:24.410654488 +0400
@@ -343,17 +343,14 @@
 	bw32(B44_IMASK, bp->imask);
 }
 
-static int b44_readphy(struct b44 *bp, int reg, u32 *val)
+static int __b44_readphy(struct b44 *bp, int phy_addr, int reg, u32 *val)
 {
 	int err;
 
-	if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
-		return 0;
-
 	bw32(B44_EMAC_ISTAT, EMAC_INT_MII);
 	bw32(B44_MDIO_DATA, (MDIO_DATA_SB_START |
 			     (MDIO_OP_READ << MDIO_DATA_OP_SHIFT) |
-			     (bp->phy_addr << MDIO_DATA_PMD_SHIFT) |
+			     (phy_addr << MDIO_DATA_PMD_SHIFT) |
 			     (reg << MDIO_DATA_RA_SHIFT) |
 			     (MDIO_TA_VALID << MDIO_DATA_TA_SHIFT)));
 	err = b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0);
@@ -362,21 +359,34 @@
 	return err;
 }
 
-static int b44_writephy(struct b44 *bp, int reg, u32 val)
+static int b44_readphy(struct b44 *bp, int reg, u32 *val)
 {
 	if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
 		return 0;
 
+	return __b44_readphy(bp, bp->phy_addr, reg, val);
+}
+
+static int __b44_writephy(struct b44 *bp, int phy_addr, int reg, u32 val)
+{
 	bw32(B44_EMAC_ISTAT, EMAC_INT_MII);
 	bw32(B44_MDIO_DATA, (MDIO_DATA_SB_START |
 			     (MDIO_OP_WRITE << MDIO_DATA_OP_SHIFT) |
-			     (bp->phy_addr << MDIO_DATA_PMD_SHIFT) |
+			     (phy_addr << MDIO_DATA_PMD_SHIFT) |
 			     (reg << MDIO_DATA_RA_SHIFT) |
 			     (MDIO_TA_VALID << MDIO_DATA_TA_SHIFT) |
 			     (val & MDIO_DATA_DATA)));
 	return b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0);
 }
 
+static int b44_writephy(struct b44 *bp, int reg, u32 val)
+{
+	if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
+		return 0;
+		
+	return __b44_writephy(bp, bp->phy_addr, reg, val);
+}
+
 static int b44_phy_reset(struct b44 *bp)
 {
 	u32 val;
@@ -1701,7 +1711,7 @@
 		u32 mii_regval;
 
 		spin_lock_irq(&bp->lock);
-		err = b44_readphy(bp, data->reg_num & 0x1f, &mii_regval);
+		err = __b44_readphy(bp, data->phy_id & 0x1f, data->reg_num & 0x1f, &mii_regval);
 		spin_unlock_irq(&bp->lock);
 
 		data->val_out = mii_regval;
@@ -1714,7 +1724,7 @@
 			return -EPERM;
 
 		spin_lock_irq(&bp->lock);
-		err = b44_writephy(bp, data->reg_num & 0x1f, data->val_in);
+		err = __b44_writephy(bp, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
 		spin_unlock_irq(&bp->lock);
 
 		return err;