SMC_LAST_DWORD
void __iomem *ptr = (uint8_t *)base + SMC_LAST_DWORD * SMC_BASIC_UNIT;
readl((uint8_t *)base + SMC_LAST_DWORD * SMC_BASIC_UNIT);
writel((char *)sc->base + SMC_LAST_DWORD * SMC_BASIC_UNIT,