REG_SM0D0_REG
ioread32(i2c->base + REG_SM0D0_REG),
iowrite32(addr, i2c->base + REG_SM0D0_REG);
iowrite32(data[0], i2c->base + REG_SM0D0_REG);
data[0] = ioread32(i2c->base + REG_SM0D0_REG);