linux-kernel - Re: [PATCH V2 2/3] mtd: spi-nor: add support for macronix mx25u3235f

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Message-ID: <44b8e7db-e928-d982-3fb7-5dd39ee9844c@marcant.net>
Date:   Wed, 21 Dec 2016 09:11:31 +0100
From:   André Valentin <avalentin@...cant.net>
To:     Marek Vasut <marek.vasut@...il.com>,
        John Crispin <john@...ozen.org>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 2/3] mtd: spi-nor: add support for macronix mx25u3235f

Hi!

I took these values from the manufacturer SDK (Qualcomm). I could not detect any problems with the setting.

Kind regards,

André

Am 21.12.2016 um 08:33 schrieb Marek Vasut:
> On 12/21/2016 08:23 AM, John Crispin wrote:
>> From: André Valentin <avalentin@...cant.net>
>>
>> This patch adds support for a new macronix spi flash chip. We have had this
>> patch inside our tree for a while and people are actively using routers
>> with this chip.
>>
>> Signed-off-by: John Crispin <john@...ozen.org>
>> Signed-off-by: André Valentin <avalentin@...cant.net>
>> ---
>> Changes in V2
>> * add description
>> * add SECT_4K
>> * fix indenting
> 
> Are you SURE this chip can do sect_4k ? The datasheet seems to imply
> that, but I wonder why it wasn't in V1 of this patch then ? Esp. if
> people are actively using this chip ...
> 
>>  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 171adb3..bfff159 100644
>> --- a/drivers/mtd/spi-nor/spi-nor.c
>> +++ b/drivers/mtd/spi-nor/spi-nor.c
>> @@ -868,6 +868,7 @@ static int spi_nor_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>>  	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64, SECT_4K) },
>>  	{ "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64, SECT_4K) },
>>  	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128, SECT_4K) },
>> +	{ "mx25u3235f",	 INFO(0xc22536, 0, 64 * 1024,  64, SECT_4K) },
>>  	{ "mx25u6435f",  INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },
>>  	{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
>>  	{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
>>
> 
> 


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