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

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Message-ID: <20151125191456.GB2959@chopperman.am.freescale.net>
Date:	Wed, 25 Nov 2015 13:14:56 -0600
From:	Han Xu <han.xu@...escale.com>
To:	Yuan Yao <yao.yuan@...escale.com>
CC:	<dwmw2@...radead.org>, <computersforpeace@...il.com>,
	<linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>
Subject: Re: [PATCH] mtd: spi-nor: fsl-quadspi: add support for ls1021a

On Wed, Nov 18, 2015 at 05:15:03PM +0800, Yuan Yao wrote:
> 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, },

Same comments, document this compatible.

>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, fsl_qspi_dt_ids);
> -- 
> 2.1.0.27.g96db324
> 

Acked-by: Han xu <han.xu@...escale.com>
-- 
Best Regards,

Han "Allen" Xu

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