Source of spi-ti-qspi.c - linux-imx - PHYTEC BitBucket (Stash)

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    return 0;
}
​
static void ti_qspi_enable_memory_map(struct spi_device *spi)
{
    struct ti_qspi  *qspi = spi_master_get_devdata(spi->master);
​
    ti_qspi_write(qspi, MM_SWITCH, QSPI_SPI_SWITCH_REG);
    if (qspi->ctrl_base) {
        regmap_update_bits(qspi->ctrl_base, qspi->ctrl_reg,
                   MEM_CS_EN(spi->chip_select),
                   MEM_CS_MASK);
                   MEM_CS_MASK,
                   MEM_CS_EN(spi->chip_select));
    }
    qspi->mmap_enabled = true;
}
​
static void ti_qspi_disable_memory_map(struct spi_device *spi)
{
    struct ti_qspi  *qspi = spi_master_get_devdata(spi->master);
​
    ti_qspi_write(qspi, 0, QSPI_SPI_SWITCH_REG);
    if (qspi->ctrl_base)
        regmap_update_bits(qspi->ctrl_base, qspi->ctrl_reg,
                   0, MEM_CS_MASK);
                   MEM_CS_MASK, 0);
    qspi->mmap_enabled = false;
}
​
static void ti_qspi_setup_mmap_read(struct spi_device *spi, u8 opcode,
                    u8 data_nbits, u8 addr_width,
                    u8 dummy_bytes)
{
    struct ti_qspi  *qspi = spi_master_get_devdata(spi->master);
    u32 memval = opcode;
​