linux-kernel - [PATCH v2 7/9] spi: fsl-qspi: support the SpacemiT K1 SoC

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Message-ID: <20251023175922.528868-8-elder@riscstar.com>
Date: Thu, 23 Oct 2025 12:59:19 -0500
From: Alex Elder <elder@...cstar.com>
To: broonie@...nel.org,
	han.xu@....com
Cc: dlan@...too.org,
	Frank.li@....com,
	guodong@...cstar.com,
	linux-spi@...r.kernel.org,
	imx@...ts.linux.dev,
	spacemit@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 7/9] spi: fsl-qspi: support the SpacemiT K1 SoC

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@...cstar.com>
---
v2: - A continued line the Kconfig file is now aligned

 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..592d46c9998bb 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 a474d1b341b6a..d4b007e8172b2 100644
--- a/drivers/spi/spi-fsl-qspi.c
+++ b/drivers/spi/spi-fsl-qspi.c
@@ -268,6 +268,15 @@ 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_SKIP_CLK_DISABLE,
+	.little_endian = true,
+};
+
 struct fsl_qspi {
 	void __iomem *iobase;
 	void __iomem *ahb_addr;
@@ -1003,6 +1012,7 @@ 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);
-- 
2.43.0