STATUS_TXFIFOFULL
while (readl_relaxed(qspi->regs + REG_STATUS) & STATUS_TXFIFOFULL)
while (readl_relaxed(qspi->regs + REG_STATUS) & STATUS_TXFIFOFULL)
while (readl_relaxed(qspi->regs + REG_STATUS) & STATUS_TXFIFOFULL)
while (readl_relaxed(qspi->regs + REG_STATUS) & STATUS_TXFIFOFULL)