MIIC_PRCMD
writel(0x00A5, miic->base + MIIC_PRCMD);
writel(0x0001, miic->base + MIIC_PRCMD);
writel(0xFFFE, miic->base + MIIC_PRCMD);
writel(0x0001, miic->base + MIIC_PRCMD);
writel(0x0000, miic->base + MIIC_PRCMD);