/**
* read_phy_reg - MII interface to read @reg_addr register of phy at @phy_addr
* return positive and zero value if success, or negative value if fail
* may be used by other standard ethernet phy
*/
unsigned short read_phy_reg_ksz8041(ec_priv_t * ecp, unsigned short reg_addr)
{
u32 op_reg;
do {
op_reg = getl(MAC_CSR10);
} while (op_reg & MII_MNG_SB);
putl(MII_MNG_SB | MII_MNG_OPCODE(MII_OP_READ) | MII_MNG_REGADD(reg_addr) |
MII_MNG_PHYADD(ASOC_ETHERNET_PHY_ADDR), MAC_CSR10);
do {
op_reg = getl(MAC_CSR10);
} while (op_reg & MII_MNG_SB);
return (u16)MII_MNG_DATA(op_reg);
}
static uint16_t owl_mdio_read(struct eth_device *dev, uint8_t phyreg)
{
struct owl_mac_info *owl_info = dev->priv;
int phyaddr = owl_info->phy_addr;
u32 op_reg;
do{
op_reg = readl(MAC_CSR10);
}while(op_reg & MII_MNG_SB);
writel(MII_MNG_SB | MII_MNG_OPCODE(MII_OP_READ) | MII_MNG_REGADD(phyreg) | MII_MNG_PHYADD(phyaddr), MAC_CSR10);
do{
op_reg = readl(MAC_CSR10);
}while(op_reg & MII_MNG_SB);
return (uint16_t)MII_MNG_DATA(op_reg);
}
/**
* read_phy_reg - MII interface to read @reg_addr register of phy at @phy_addr
* return positive and zero value if success, or negative value if fail
* may be used by other standard ethernet phy
*/
unsigned short read_phy_reg_sr8201g(ec_priv_t * ecp, unsigned short reg_addr)
{
u32 op_reg;
u32 phy_addr;
if((ecp->phy_addr)!=0xFF)
phy_addr=ecp->phy_addr;
else
phy_addr=ASOC_ETHERNET_PHY_ADDR;
do {
op_reg = getl(MAC_CSR10);
} while (op_reg & MII_MNG_SB);
putl(MII_MNG_SB | MII_MNG_OPCODE(MII_OP_READ) | MII_MNG_REGADD(reg_addr) |
MII_MNG_PHYADD(phy_addr), MAC_CSR10);
do {
op_reg = getl(MAC_CSR10);
} while (op_reg & MII_MNG_SB);
return (u16)MII_MNG_DATA(op_reg);
}