[PATCH 6/8] spi: fsl-qspi: support the SpacemiT K1 SoC

[Alex Elder <elder@riscstar.com>]

Allow the SPI_FSL_QUADSPI Kconfig option to be selected if
ARCH_SPACEMIT enabled.

Add support for the SpacemiT K1 SoC in the Freescale QSPI driver
by defining the device type data for its QSPI implementation.

Signed-off-by: Alex Elder <elder@riscstar.com>
---
 drivers/spi/Kconfig        |  3 ++-
 drivers/spi/spi-fsl-qspi.c | 10 ++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 4d8f00c850c14..2e3d8bd06ceb2 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -435,7 +435,8 @@ config SPI_FSL_LPSPI
 
 config SPI_FSL_QUADSPI
 	tristate "Freescale QSPI controller"
-	depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
+	depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || \
+			ARCH_SPACEMIT || COMPILE_TEST
 	depends on HAS_IOMEM
 	help
 	  This enables support for the Quad SPI controller in master mode.
diff --git a/drivers/spi/spi-fsl-qspi.c b/drivers/spi/spi-fsl-qspi.c
index 9ecb756b33dba..f4f9cf127d3fe 100644
--- a/drivers/spi/spi-fsl-qspi.c
+++ b/drivers/spi/spi-fsl-qspi.c
@@ -267,6 +267,15 @@ static const struct fsl_qspi_devtype_data ls2080a_data = {
 	.little_endian = true,
 };
 
+static const struct fsl_qspi_devtype_data spacemit_k1_data = {
+	.rxfifo = SZ_128,
+	.txfifo = SZ_256,
+	.ahb_buf_size = SZ_512,
+	.invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID,
+	.quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_NO_CLK_DISABLE,
+	.little_endian = true,
+};
+
 struct fsl_qspi {
 	void __iomem *iobase;
 	void __iomem *ahb_addr;
@@ -998,6 +1007,7 @@ static const struct of_device_id fsl_qspi_dt_ids[] = {
 	{ .compatible = "fsl,imx6ul-qspi", .data = &imx6ul_data, },
 	{ .compatible = "fsl,ls1021a-qspi", .data = &ls1021a_data, },
 	{ .compatible = "fsl,ls2080a-qspi", .data = &ls2080a_data, },
+	{ .compatible = "spacemit,k1-qspi", .data = &spacemit_k1_data, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, fsl_qspi_dt_ids);
-- 
2.48.1