ROCKCHIP_SPI_ICR
writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR);
writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR);
writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR);
writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR);