NvRegTransmitPoll
writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
base + NvRegTransmitPoll);
temp3 = readl(base + NvRegTransmitPoll);
writel(temp3, base + NvRegTransmitPoll);
writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
txreg = readl(base + NvRegTransmitPoll);
writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
writel(readl(base + NvRegTransmitPoll) & ~NVREG_TRANSMITPOLL_MAC_ADDR_REV,
base + NvRegTransmitPoll);