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authorRalf Baechle <ralf@linux-mips.org>2005-10-20 15:01:28 +0400
committerJeff Garzik <jgarzik@pobox.com>2005-10-21 00:06:11 +0400
commit59b81827071a8ae7f399da533d268e1e33bfeeb7 (patch)
tree71b98092ae01162cc33c08617d24b7803f1f89de /drivers/net/sb1250-mac.c
parent902f90735b693550eb51a3989895f3148b8229d8 (diff)
downloadlinux-59b81827071a8ae7f399da533d268e1e33bfeeb7.tar.xz
[PATCH] sb1250-mac: PHY probing fixes.
Improve sb1250-mac driver to probe for PHYs at addresses other than 1, such as the PHYs on BigSur. Signed-Off-By: Andy Isaacson <adi@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net/sb1250-mac.c')
-rw-r--r--drivers/net/sb1250-mac.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index d4c8ecdfa4a7..aa4ca1821759 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -296,6 +296,7 @@ static void sbmac_set_rx_mode(struct net_device *dev);
static int sbmac_mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int sbmac_close(struct net_device *dev);
static int sbmac_mii_poll(struct sbmac_softc *s,int noisy);
+static int sbmac_mii_probe(struct net_device *dev);
static void sbmac_mii_sync(struct sbmac_softc *s);
static void sbmac_mii_senddata(struct sbmac_softc *s,unsigned int data, int bitcnt);
@@ -433,6 +434,9 @@ static uint64_t sbmac_orig_hwaddr[MAX_UNITS];
#define MII_BMCR 0x00 /* Basic mode control register (rw) */
#define MII_BMSR 0x01 /* Basic mode status register (ro) */
+#define MII_PHYIDR1 0x02
+#define MII_PHYIDR2 0x03
+
#define MII_K1STSR 0x0A /* 1K Status Register (ro) */
#define MII_ANLPAR 0x05 /* Autonegotiation lnk partner abilities (rw) */
@@ -2432,6 +2436,15 @@ static int sbmac_open(struct net_device *dev)
return -EBUSY;
/*
+ * Probe phy address
+ */
+
+ if(sbmac_mii_probe(dev) == -1) {
+ printk("%s: failed to probe PHY.\n", dev->name);
+ return -EINVAL;
+ }
+
+ /*
* Configure default speed
*/
@@ -2464,6 +2477,29 @@ static int sbmac_open(struct net_device *dev)
return 0;
}
+static int sbmac_mii_probe(struct net_device *dev)
+{
+ int i;
+ struct sbmac_softc *s = netdev_priv(dev);
+ u16 bmsr, id1, id2;
+ u32 vendor, device;
+
+ for (i=1; i<31; i++) {
+ bmsr = sbmac_mii_read(s, i, MII_BMSR);
+ if (bmsr != 0) {
+ s->sbm_phys[0] = i;
+ id1 = sbmac_mii_read(s, i, MII_PHYIDR1);
+ id2 = sbmac_mii_read(s, i, MII_PHYIDR2);
+ vendor = ((u32)id1 << 6) | ((id2 >> 10) & 0x3f);
+ device = (id2 >> 4) & 0x3f;
+
+ printk(KERN_INFO "%s: found phy %d, vendor %06x part %02x\n",
+ dev->name, i, vendor, device);
+ return i;
+ }
+ }
+ return -1;
+}
static int sbmac_mii_poll(struct sbmac_softc *s,int noisy)