REG_DIRECT_ACCESS
val = readl(qspi->regs + REG_DIRECT_ACCESS);
writel(val, qspi->regs + REG_DIRECT_ACCESS);
val = readl(qspi->regs + REG_DIRECT_ACCESS);
writel(val, qspi->regs + REG_DIRECT_ACCESS);
val = readl_relaxed(qspi->regs + REG_DIRECT_ACCESS);
writel(val, qspi->regs + REG_DIRECT_ACCESS);