int mcffec_miiphy_read(char *devname, unsigned char addr, unsigned char reg,
unsigned short *value)
{
short rdreg; /* register working value */
#ifdef MII_DEBUG
printf("miiphy_read(0x%x) @ 0x%x = ", reg, addr);
#endif
rdreg = mii_send(mk_mii_read(addr, reg));
*value = rdreg;
#ifdef MII_DEBUG
printf("0x%04x\n", *value);
#endif
return 0;
}
int mii_discover_phy(struct eth_device *dev)
{
#define MAX_PHY_PASSES 11
struct fec_info_s *info = dev->priv;
int phyaddr, pass;
uint phyno, phytype;
if (info->phyname_init)
return info->phy_addr;
phyaddr = -1; /* didn't find a PHY yet */
for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) {
if (pass > 1) {
/* PHY may need more time to recover from reset.
* The LXT970 needs 50ms typical, no maximum is
* specified, so wait 10ms before try again.
* With 11 passes this gives it 100ms to wake up.
*/
udelay(10000); /* wait 10ms */
}
for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) {
phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1));
#ifdef ET_DEBUG
printf("PHY type 0x%x pass %d type\n", phytype, pass);
#endif
if (phytype != 0xffff) {
phyaddr = phyno;
phytype <<= 16;
phytype |=
mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
switch (phytype & 0xffffffff) {
case PHY_ID_AMD79C874VC:
strcpy(info->phy_name,
STR_ID_AMD79C874VC);
info->phyname_init = 1;
break;
default:
strcpy(info->phy_name, "unknown");
info->phyname_init = 1;
break;
}
#ifdef ET_DEBUG
printf("PHY @ 0x%x pass %d type ", phyno, pass);
switch (phytype & 0xffffffff) {
case PHY_ID_AMD79C874VC:
printf(STR_ID_AMD79C874VC);
break;
default:
printf("0x%08x\n", phytype);
break;
}
#endif
}
}
}
if (phyaddr < 0)
printf("No PHY device found.\n");
return phyaddr;
}
int mii_discover_phy(struct eth_device *dev)
{
#define MAX_PHY_PASSES 11
FEC_INFO_T *info = dev->priv;
int phyaddr, pass;
uint phyno, phytype;
int i, found = 0;
if (info->phyname_init)
return info->phy_addr;
phyaddr = -1; /* didn't find a PHY yet */
for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) {
if (pass > 1) {
/* PHY may need more time to recover from reset.
* The LXT970 needs 50ms typical, no maximum is
* specified, so wait 10ms before try again.
* With 11 passes this gives it 100ms to wake up.
*/
udelay(10000); /* wait 10ms */
}
for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) {
phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1));
#ifdef ET_DEBUG
printf("PHY type 0x%x pass %d type\n", phytype, pass);
#endif
if (phytype != 0xffff && phytype != 0) {
phyaddr = phyno;
phytype <<= 16;
phytype |=
mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
#ifdef ET_DEBUG
printf("PHY @ 0x%x pass %d\n", phyno, pass);
#endif
for (i = 0; i < (sizeof(phyinfo) / sizeof(phy_info_t)); i++) {
if (phyinfo[i].phyid == phytype) {
#ifdef ET_DEBUG
printf("phyid %x - %s\n",
phyinfo[i].phyid,
phyinfo[i].strid);
#endif
strcpy(info->phy_name, phyinfo[i].strid);
info->phyname_init = 1;
found = 1;
break;
}
}
if (!found) {
#ifdef ET_DEBUG
printf("0x%08x\n", phytype);
#endif
strcpy(info->phy_name, "unknown");
info->phyname_init = 1;
break;
}
}
}
}
if (phyaddr < 0)
printf("No PHY device found.\n");
return phyaddr;
}
