EDU_DONE
[EDU_DONE] = 0x1c,
edu_writel(ctrl, EDU_DONE, 0);
edu_writel(ctrl, EDU_DONE, 0);
edu_writel(ctrl, EDU_DONE, 0);
edu_writel(ctrl, EDU_DONE, 0);
edu_readl(ctrl, EDU_DONE);
while (!(edu_readl(ctrl, EDU_DONE) & EDU_DONE_MASK))
edu_writel(ctrl, EDU_DONE, 0);
edu_readl(ctrl, EDU_DONE);