linux-kernel - [PATCH] mtd: spi-nor: fsl-quadspi: add support for ls1021a

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Message-ID: <1447838103-6034-1-git-send-email-yao.yuan@freescale.com>
Date:	Wed, 18 Nov 2015 17:15:03 +0800
From:	Yuan Yao <yao.yuan@...escale.com>
To:	<dwmw2@...radead.org>, <computersforpeace@...il.com>,
	<han.xu@...escale.com>
CC:	<linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>
Subject: [PATCH] mtd: spi-nor: fsl-quadspi: add support for ls1021a

LS1021a also support Freescale Quad SPI controller.
Add fsl-quadspi support for ls1021a chip and make SPI_FSL_QUADSPI
selectable for LS1021A SOC hardwares.

Signed-off-by: Yuan Yao <yao.yuan@...escale.com>
---
 drivers/mtd/spi-nor/Kconfig       |  2 +-
 drivers/mtd/spi-nor/fsl-quadspi.c | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
index 2fe2a7e..1368221 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -23,7 +23,7 @@ config MTD_SPI_NOR_USE_4K_SECTORS
 
 config SPI_FSL_QUADSPI
 	tristate "Freescale Quad SPI controller"
-	depends on ARCH_MXC || COMPILE_TEST
+	depends on ARCH_MXC || SOC_LS1021A || COMPILE_TEST
 	depends on HAS_IOMEM
 	help
 	  This enables support for the Quad SPI controller in master mode.
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c
index 0ce7768..03a589d 100644
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -213,6 +213,7 @@ enum fsl_qspi_devtype {
 	FSL_QUADSPI_IMX6SX,
 	FSL_QUADSPI_IMX7D,
 	FSL_QUADSPI_IMX6UL,
+	FSL_QUADSPI_LS1021A,
 };
 
 struct fsl_qspi_devtype_data {
@@ -258,6 +259,14 @@ static struct fsl_qspi_devtype_data imx6ul_data = {
 		       | QUADSPI_QUIRK_4X_INT_CLK,
 };
 
+static struct fsl_qspi_devtype_data ls1021a_data = {
+	.devtype = FSL_QUADSPI_LS1021A,
+	.rxfifo = 128,
+	.txfifo = 64,
+	.ahb_buf_size = 1024,
+	.driver_data = 0,
+};
+
 #define FSL_QSPI_MAX_CHIP	4
 struct fsl_qspi {
 	struct spi_nor nor[FSL_QSPI_MAX_CHIP];
@@ -812,6 +821,7 @@ static const struct of_device_id fsl_qspi_dt_ids[] = {
 	{ .compatible = "fsl,imx6sx-qspi", .data = (void *)&imx6sx_data, },
 	{ .compatible = "fsl,imx7d-qspi", .data = (void *)&imx7d_data, },
 	{ .compatible = "fsl,imx6ul-qspi", .data = (void *)&imx6ul_data, },
+	{ .compatible = "fsl,ls1021a-qspi", .data = (void *)&ls1021a_data, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, fsl_qspi_dt_ids);
-- 
2.1.0.27.g96db324

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