linux-kernel - Re: [PATCH v2 1/3] mtd: spinand: Add #define-s for page-read ops with three-byte addresses

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Message-ID: <e5dfd043-e5a4-4c6c-5af7-51c52873c9d6@kontron.de>
Date:   Wed, 15 May 2019 06:51:38 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     Jeff Kletsky <lede@...ycomm.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>
CC:     "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] mtd: spinand: Add #define-s for page-read ops with
 three-byte addresses

On 14.05.19 23:53, Jeff Kletsky wrote:
> From: Jeff Kletsky <git-commits@...ycomm.com>
> 
> The GigaDevice GD5F1GQ4UFxxG SPI NAND utilizes three-byte addresses
> for its page-read ops.
> 
> http://www.gigadevice.com/datasheet/gd5f1gq4xfxxg/
> 
> Signed-off-by: Jeff Kletsky <git-commits@...ycomm.com>

Reviewed-by: Frieder Schrempf <frieder.schrempf@...tron.de>

> ---
>   include/linux/mtd/spinand.h | 30 ++++++++++++++++++++++++++++++
>   1 file changed, 30 insertions(+)
> 
> diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
> index b92e2aa955b6..05fe98eebe27 100644
> --- a/include/linux/mtd/spinand.h
> +++ b/include/linux/mtd/spinand.h
> @@ -68,30 +68,60 @@
>   		   SPI_MEM_OP_DUMMY(ndummy, 1),				\
>   		   SPI_MEM_OP_DATA_IN(len, buf, 1))
>   
> +#define SPINAND_PAGE_READ_FROM_CACHE_OP_3A(fast, addr, ndummy, buf, len) \
> +	SPI_MEM_OP(SPI_MEM_OP_CMD(fast ? 0x0b : 0x03, 1),		\
> +		   SPI_MEM_OP_ADDR(3, addr, 1),				\
> +		   SPI_MEM_OP_DUMMY(ndummy, 1),				\
> +		   SPI_MEM_OP_DATA_IN(len, buf, 1))
> +
>   #define SPINAND_PAGE_READ_FROM_CACHE_X2_OP(addr, ndummy, buf, len)	\
>   	SPI_MEM_OP(SPI_MEM_OP_CMD(0x3b, 1),				\
>   		   SPI_MEM_OP_ADDR(2, addr, 1),				\
>   		   SPI_MEM_OP_DUMMY(ndummy, 1),				\
>   		   SPI_MEM_OP_DATA_IN(len, buf, 2))
>   
> +#define SPINAND_PAGE_READ_FROM_CACHE_X2_OP_3A(addr, ndummy, buf, len)	\
> +	SPI_MEM_OP(SPI_MEM_OP_CMD(0x3b, 1),				\
> +		   SPI_MEM_OP_ADDR(3, addr, 1),				\
> +		   SPI_MEM_OP_DUMMY(ndummy, 1),				\
> +		   SPI_MEM_OP_DATA_IN(len, buf, 2))
> +
>   #define SPINAND_PAGE_READ_FROM_CACHE_X4_OP(addr, ndummy, buf, len)	\
>   	SPI_MEM_OP(SPI_MEM_OP_CMD(0x6b, 1),				\
>   		   SPI_MEM_OP_ADDR(2, addr, 1),				\
>   		   SPI_MEM_OP_DUMMY(ndummy, 1),				\
>   		   SPI_MEM_OP_DATA_IN(len, buf, 4))
>   
> +#define SPINAND_PAGE_READ_FROM_CACHE_X4_OP_3A(addr, ndummy, buf, len)	\
> +	SPI_MEM_OP(SPI_MEM_OP_CMD(0x6b, 1),				\
> +		   SPI_MEM_OP_ADDR(3, addr, 1),				\
> +		   SPI_MEM_OP_DUMMY(ndummy, 1),				\
> +		   SPI_MEM_OP_DATA_IN(len, buf, 4))
> +
>   #define SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(addr, ndummy, buf, len)	\
>   	SPI_MEM_OP(SPI_MEM_OP_CMD(0xbb, 1),				\
>   		   SPI_MEM_OP_ADDR(2, addr, 2),				\
>   		   SPI_MEM_OP_DUMMY(ndummy, 2),				\
>   		   SPI_MEM_OP_DATA_IN(len, buf, 2))
>   
> +#define SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP_3A(addr, ndummy, buf, len) \
> +	SPI_MEM_OP(SPI_MEM_OP_CMD(0xbb, 1),				\
> +		   SPI_MEM_OP_ADDR(3, addr, 2),				\
> +		   SPI_MEM_OP_DUMMY(ndummy, 2),				\
> +		   SPI_MEM_OP_DATA_IN(len, buf, 2))
> +
>   #define SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(addr, ndummy, buf, len)	\
>   	SPI_MEM_OP(SPI_MEM_OP_CMD(0xeb, 1),				\
>   		   SPI_MEM_OP_ADDR(2, addr, 4),				\
>   		   SPI_MEM_OP_DUMMY(ndummy, 4),				\
>   		   SPI_MEM_OP_DATA_IN(len, buf, 4))
>   
> +#define SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP_3A(addr, ndummy, buf, len) \
> +	SPI_MEM_OP(SPI_MEM_OP_CMD(0xeb, 1),				\
> +		   SPI_MEM_OP_ADDR(3, addr, 4),				\
> +		   SPI_MEM_OP_DUMMY(ndummy, 4),				\
> +		   SPI_MEM_OP_DATA_IN(len, buf, 4))
> +
>   #define SPINAND_PROG_EXEC_OP(addr)					\
>   	SPI_MEM_OP(SPI_MEM_OP_CMD(0x10, 1),				\
>   		   SPI_MEM_OP_ADDR(3, addr, 1),				\
>