linux-kernel - Re: [PATCH] mtd: spi-nor: Add support for sst25wf020a.

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Date:	Fri, 14 Aug 2015 22:45:14 +0200
From:	Marek Vasut <marex@...x.de>
To:	Alexis Ballier <aballier@...too.org>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Rafał Miłecki <zajec5@...il.com>,
	Huang Shijie <shijie.huang@...el.com>,
	Gabor Juhos <juhosg@...nwrt.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	"Bean Huo 霍斌斌 (beanhuo)" 
	<beanhuo@...ron.com>,
	"open list:MEMORY TECHNOLOGY DEVICES (MTD)" 
	<linux-mtd@...ts.infradead.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: spi-nor: Add support for sst25wf020a.

On Friday, August 14, 2015 at 07:35:39 PM, Alexis Ballier wrote:
> It is a 256KiB flash with 4 KiB erase sectors
> and 64KiB overlay blocks.
> 
> This is the one available on Hardkernel's Odroid U3 shield.
> 
> Signed-off-by: Alexis Ballier <aballier@...too.org>
> ---
>  drivers/mtd/spi-nor/spi-nor.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index d78831b..e521b35 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -636,6 +636,7 @@ static const struct spi_device_id spi_nor_ids[] = {
>  	{ "sst25wf512",  INFO(0xbf2501, 0, 64 * 1024,  1, SECT_4K | SST_WRITE) 
},
>  	{ "sst25wf010",  INFO(0xbf2502, 0, 64 * 1024,  2, SECT_4K | SST_WRITE) 
},
>  	{ "sst25wf020",  INFO(0xbf2503, 0, 64 * 1024,  4, SECT_4K | SST_WRITE) 
},
> +	{ "sst25wf020a", INFO(0x621612, 0, 64 * 1024,  4, SECT_4K) },

Is the SST_WRITE not needed on this device ?

Otherwise, looks pretty obvious :)

>  	{ "sst25wf040",  INFO(0xbf2504, 0, 64 * 1024,  8, SECT_4K | SST_WRITE) 
},
>  	{ "sst25wf080",  INFO(0xbf2505, 0, 64 * 1024, 16, SECT_4K | SST_WRITE) 
},

Best regards,
Marek Vasut
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