Re: [PATCH 2/2] mtd: spi-nor: Add support for mx25u3235f

[<Tudor.Ambarus@xxxxxxxxxxxxx>]

Hi, Hauke,

On 01/17/2019 12:38 AM, Hauke Mehrtens wrote:
> On 1/11/19 9:54 AM, Tudor.Ambarus@xxxxxxxxxxxxx wrote:
>> Hi, Hauke,
>>
>> On 12/09/2018 07:03 PM, Hauke Mehrtens wrote:
>>> From: André Valentin <avalentin@xxxxxxxxxxx>
>>>
>>> This flash chip was found on the ZyXEL NBG6817
>>>
>>> The datasheet can be found here:
>>> http://www.macronix.com/Lists/Datasheet/Attachments/7438/MX25U3235F,%201.8V,%2032Mb,%20v1.6.pdf
>>
>> Did you test the flash to see if it works correctly? You should specify this in
>> the commit message.
> 
> Sorry I do not have a device with this flash chip, this patch was
> shipped in OpenWrt for a long time and I wanted to reduce the number of
> patches we carry in OpenWrt.
> 
> André can you please confirm that this works for you on your device.
> 
>>>
>>> Signed-off-by: André Valentin <avalentin@xxxxxxxxxxx>
>>
>> You should add your Signed-off-by tag as you are sending a patch that is not
>> from you.
> 
> No Problem I can add this.
> 
>>> ---
>>>  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 a21b1a26130d..9925760339ba 100644
>>> --- a/drivers/mtd/spi-nor/spi-nor.c
>>> +++ b/drivers/mtd/spi-nor/spi-nor.c
>>> @@ -1375,6 +1375,7 @@ static const struct flash_info spi_nor_ids[] = {
>>>  	{ "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) },
>>>  	{ "mx25u2033e",  INFO(0xc22532, 0, 64 * 1024,   4, SECT_4K) },
>>
>> It's nicer to order this alphabetically, the entry should be added here.
> 
> Ok will change this.
> 
>>
>> The flash supports Fast Read 1-1-2 (3Bh) and Fast Read 1-1-4 (6Bh) hence both
>> SPI_NOR_DUAL_READ and SPI_NOR_QUAD_READ flags should be set too. Can you please
>> test with these flags and if all ok, submit a new patch?
> 
> I do not know if the controller in the ZyXEL NBG6817 and the board is
> capable of dual and quad reads.

You can add SPI_NOR_DUAL_READ and SPI_NOR_QUAD_READ flags and we'll wait for
Andre's or Ding's Tested-by tag.

Thanks,
ta
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