SPI_CFG1_REG
writel(0, mdata->base + SPI_CFG1_REG);
reg_val = readl(mdata->base + SPI_CFG1_REG);
writel(reg_val, mdata->base + SPI_CFG1_REG);
reg_val = readl(mdata->base + SPI_CFG1_REG);
writel(reg_val, mdata->base + SPI_CFG1_REG);
reg_val = readl(mdata->base + SPI_CFG1_REG);
writel(reg_val, mdata->base + SPI_CFG1_REG);
reg_val = readl(mdata->base + SPI_CFG1_REG);
writel(reg_val, mdata->base + SPI_CFG1_REG);