SPRD_SPI_CTL4
val = readl_relaxed(ss->base + SPRD_SPI_CTL4);
writel_relaxed(val, ss->base + SPRD_SPI_CTL4);
val = readl_relaxed(ss->base + SPRD_SPI_CTL4);
writel_relaxed(val, ss->base + SPRD_SPI_CTL4);
val = readl_relaxed(ss->base + SPRD_SPI_CTL4);
writel_relaxed(val, ss->base + SPRD_SPI_CTL4);