linux-kernel - RE: [Patch v3] drivers: mtd: spi-nor: Add flash property for mt25qu512a and mt35xu02g

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Date:   Mon, 26 Aug 2019 09:15:15 +0000
From:   Ashish Kumar <ashish.kumar@....com>
To:     Ashish Kumar <ashish.kumar@....com>,
        "tudor.ambarus@...rochip.com" <tudor.ambarus@...rochip.com>,
        "marek.vasut@...il.com" <marek.vasut@...il.com>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>,
        "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "richard@....at" <richard@....at>,
        "vigneshr@...com" <vigneshr@...com>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Kuldeep Singh <kuldeep.singh@....com>
Subject: RE: [Patch v3] drivers: mtd: spi-nor: Add flash property for
 mt25qu512a and mt35xu02g



> -----Original Message-----
> From: Ashish Kumar <Ashish.Kumar@....com>
> Sent: Tuesday, August 13, 2019 4:08 PM
> To: tudor.ambarus@...rochip.com; marek.vasut@...il.com;
> dwmw2@...radead.org; computersforpeace@...il.com;
> miquel.raynal@...tlin.com; richard@....at; vigneshr@...com; linux-
> mtd@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org; Ashish Kumar <ashish.kumar@....com>;
> Kuldeep Singh <kuldeep.singh@....com>; Ashish Kumar
> <ashish.kumar@....com>
> Subject: [Patch v3] drivers: mtd: spi-nor: Add flash property for mt25qu512a
> and mt35xu02g
Hi Vignesh, Tudor Ambarus,
 
Could you please update, if there are any further comments on this patch.

Regards
Ashish 
> 
> mt25qu512a is rebranded after its spinoff from STM, so it is different only in
> term of operating frequency, initial JEDEC id is same as that of n25q512a. In
> order to avoid any confussion with respect to name new entry is added.
> This flash is tested for Single I/O and QUAD I/O mode on LS1046FRWY.
> 
> mt35xu02g is Octal flash supporting Single I/O and QCTAL I/O and it has been
> tested on LS1028ARDB
> 
> Signed-off-by: Kuldeep Singh <kuldeep.singh@....com>
> Signed-off-by: Ashish Kumar <ashish.kumar@....com>
> ---
> v3:
> -Reword commits msg
> -rebase to top of mtd-linux spi-nor/next
> v2:
> Incorporate review comments from Vignesh
> 
>  drivers/mtd/spi-nor/spi-nor.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index 03cc788..97d3de8 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -1988,6 +1988,12 @@ static const struct flash_info spi_nor_ids[] = {
>  	{ "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024,  256, SECT_4K |
> SPI_NOR_QUAD_READ) },
>  	{ "n25q256a",    INFO(0x20ba19, 0, 64 * 1024,  512, SECT_4K |
> SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>  	{ "n25q256ax1",  INFO(0x20bb19, 0, 64 * 1024,  512, SECT_4K |
> SPI_NOR_QUAD_READ) },
> +
> +	/* Micron */
> +	{ "mt25qu512a", INFO6(0x20bb20, 0x104400, 64 * 1024, 1024,
> SECT_4K |
> +				USE_FSR | SPI_NOR_DUAL_READ |
> +				SPI_NOR_QUAD_READ |
> SPI_NOR_4B_OPCODES) },
> +
>  	{ "n25q512a",    INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K |
> USE_FSR | SPI_NOR_QUAD_READ) },
>  	{ "n25q512ax3",  INFO(0x20ba20, 0, 64 * 1024, 1024, SECT_4K |
> USE_FSR | SPI_NOR_QUAD_READ) },
>  	{ "n25q00",      INFO(0x20ba21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR
> | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
> @@ -2003,6 +2009,9 @@ static const struct flash_info spi_nor_ids[] = {
>  			SECT_4K | USE_FSR | SPI_NOR_OCTAL_READ |
>  			SPI_NOR_4B_OPCODES)
>  	},
> +	{ "mt35xu02g",  INFO(0x2c5b1c, 0, 128 * 1024, 2048,
> +			SECT_4K | USE_FSR | SPI_NOR_OCTAL_READ |
> +			SPI_NOR_4B_OPCODES) },
> 
>  	/* PMC */
>  	{ "pm25lv512",   INFO(0,        0, 32 * 1024,    2, SECT_4K_PMC) },
> --
> 2.7.4