EMC_STALL_THEN_EXE_AFTER_CLKCHANGE
emc_ccfifo_writel(emc, 1, EMC_STALL_THEN_EXE_AFTER_CLKCHANGE);
ccfifo_writel(emc, 1, EMC_STALL_THEN_EXE_AFTER_CLKCHANGE, 0);
writel_relaxed(0x1, emc->regs + EMC_STALL_THEN_EXE_AFTER_CLKCHANGE);