linux-kernel - [PATCH v3 3/4] spi: fspi: add support for imx8ulp

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Message-Id: <20240905094338.1986871-4-haibo.chen@nxp.com>
Date: Thu,  5 Sep 2024 17:43:37 +0800
From: haibo.chen@....com
To: han.xu@....com,
	yogeshgaur.83@...il.com,
	broonie@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
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Cc: kernel@...gutronix.de,
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	singh.kuldeep87k@...il.com,
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Subject: [PATCH v3 3/4] spi: fspi: add support for imx8ulp

From: Haibo Chen <haibo.chen@....com>

The flexspi on imx8ulp only has 16 LUTs, different with others which
have up to 32 LUTs.

Add a separate compatible string and nxp_fspi_devtype_data to support
flexspi on imx8ulp.

Fixes: ef89fd56bdfc ("arm64: dts: imx8ulp: add flexspi node")
Cc: stable@...nel.org
Signed-off-by: Haibo Chen <haibo.chen@....com>
---
 drivers/spi/spi-nxp-fspi.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
index f42c14d80289..69e427b1903b 100644
--- a/drivers/spi/spi-nxp-fspi.c
+++ b/drivers/spi/spi-nxp-fspi.c
@@ -371,6 +371,15 @@ static struct nxp_fspi_devtype_data imx8dxl_data = {
 	.little_endian = true,  /* little-endian    */
 };
 
+static struct nxp_fspi_devtype_data imx8ulp_data = {
+	.rxfifo = SZ_512,       /* (64  * 64 bits)  */
+	.txfifo = SZ_1K,        /* (128 * 64 bits)  */
+	.ahb_buf_size = SZ_2K,  /* (256 * 64 bits)  */
+	.quirks = 0,
+	.lut_num = 16,
+	.little_endian = true,  /* little-endian    */
+};
+
 struct nxp_fspi {
 	void __iomem *iobase;
 	void __iomem *ahb_addr;
@@ -1295,6 +1304,7 @@ static const struct of_device_id nxp_fspi_dt_ids[] = {
 	{ .compatible = "nxp,imx8mp-fspi", .data = (void *)&imx8mm_data, },
 	{ .compatible = "nxp,imx8qxp-fspi", .data = (void *)&imx8qxp_data, },
 	{ .compatible = "nxp,imx8dxl-fspi", .data = (void *)&imx8dxl_data, },
+	{ .compatible = "nxp,imx8ulp-fspi", .data = (void *)&imx8ulp_data, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, nxp_fspi_dt_ids);
-- 
2.34.1