From 59b81827071a8ae7f399da533d268e1e33bfeeb7 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 20 Oct 2005 12:01:28 +0100 Subject: [PATCH] [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 Signed-off-by: Ralf Baechle Signed-off-by: Jeff Garzik --- drivers/net/sb1250-mac.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) 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) */ @@ -2431,6 +2435,15 @@ static int sbmac_open(struct net_device *dev) if (request_irq(dev->irq, &sbmac_intr, SA_SHIRQ, dev->name, 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) -- 2.30.2