SM501_DRAM_CONTROL
sm501_reg = ioremap(SM107_REG_ADDR, SM501_DRAM_CONTROL);
writel(0x000307c2, sm501_reg + SM501_DRAM_CONTROL);
sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
dramctrl = smc501_readl(sm->regs + SM501_DRAM_CONTROL);
smc501_readl(regs + SM501_DRAM_CONTROL));