BIGMAC_RXCFG_ENABLE
tmp &= ~(BIGMAC_RXCFG_ENABLE);
while ((sbus_readl(bregs + BMAC_RXCFG) & BIGMAC_RXCFG_ENABLE) != 0)
tmp |= BIGMAC_RXCFG_ENABLE;
sbus_writel(sbus_readl(bregs + BMAC_RXCFG) | BIGMAC_RXCFG_ENABLE,
hme_read32(hp, bregs + BMAC_RXCFG) | BIGMAC_RXCFG_ENABLE);