ETH_POC
cache->eth_poc[i] = readb(pctrl->base + ETH_POC(regs->eth_poc, i));
writeb(cache->eth_poc[i], pctrl->base + ETH_POC(regs->eth_poc, i));
return ETH_POC(regs->eth_poc, 0);
return ETH_POC(regs->eth_poc, 1);