SPICC_INTREG
writel_relaxed(0, spicc->base + SPICC_INTREG);
writel_relaxed(0, spicc->base + SPICC_INTREG);
writel(0, spicc->base + SPICC_INTREG);
writel_relaxed(SPICC_TE_EN, spicc->base + SPICC_INTREG);
writel_relaxed(SPICC_TC_EN, spicc->base + SPICC_INTREG);
writel(0, spicc->base + SPICC_INTREG);