spi: spi-nxp-fspi: Add imx8dxl driver support

Add driver support for imx8dxl which support read through IP bus only
and disable AHB bus due to an IC errata. Use the pre-defined quirk
FSPI_QUIRK_USE_IP_ONLY directly in device-type data to disable AHB read.

Signed-off-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Link: https://lore.kernel.org/r/20210302124936.1972546-4-kuldeep.singh@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
index 829391e20e9202a221207e8b806e228a9526098e..80a9278d91edaef5c1ce3c497d76b36e1f45f116 100644 (file)
--- a/drivers/spi/spi-nxp-fspi.c
+++ b/drivers/spi/spi-nxp-fspi.c
@@ -346,6 +346,14 @@ static const struct nxp_fspi_devtype_data imx8qxp_data = {
        .little_endian = true,  /* little-endian    */
 };
 
+static const struct nxp_fspi_devtype_data imx8dxl_data = {
+       .rxfifo = SZ_512,       /* (64  * 64 bits)  */
+       .txfifo = SZ_1K,        /* (128 * 64 bits)  */
+       .ahb_buf_size = SZ_2K,  /* (256 * 64 bits)  */
+       .quirks = FSPI_QUIRK_USE_IP_ONLY,
+       .little_endian = true,  /* little-endian    */
+};
+
 struct nxp_fspi {
        void __iomem *iobase;
        void __iomem *ahb_addr;
@@ -1168,6 +1176,7 @@ static const struct of_device_id nxp_fspi_dt_ids[] = {
        { .compatible = "nxp,lx2160a-fspi", .data = (void *)&lx2160a_data, },
        { .compatible = "nxp,imx8mm-fspi", .data = (void *)&imx8mm_data, },
        { .compatible = "nxp,imx8qxp-fspi", .data = (void *)&imx8qxp_data, },
+       { .compatible = "nxp,imx8dxl-fspi", .data = (void *)&imx8dxl_data, },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, nxp_fspi_dt_ids);