[U-Boot] [PATCH RFT 0/3] spi-nor: spi-nor-ids: Fix 4 Byte addressing for n25q256 and n25q512*

Vignesh Raghavendra vigneshr at ti.com
Tue Sep 24 08:00:24 UTC 2019


Hi Simon,

On 24/09/19 12:32 PM, Simon Goldschmidt wrote:
> Hi Vignesh,
> 
> On Tue, Sep 24, 2019 at 7:55 AM Vignesh Raghavendra <vigneshr at ti.com> wrote:
>>
>> This series removes SPI_NOR_4B_OPCODES flags from legacy variants of
>> n25q256* and n25q512* and adds entries for newer variants of those
>> flashes that support 4 Byte opcodes.
>>
>> I don't have the flash devices. So its only compile tested.
>>
>> Ashish, Simon,
>>
>> I would greatly appreciate if you could test these patches and make sure
>> 4 Byte opcodes are being used. (Probably by enabling/adding prints to
>> cmd->opcode in spi_mem_exec_op() in drivers/spi/spi-mem.c
> 
> As written in my last mail, I currently cannot get SFDP to work on my board:
> I keep getting 0xffdddfdf instead of 0x50444653 (SFDP_SIGNATURE).
> 

Did it ever work on your board ie did you test it when you were testing
my patches porting SPI NOR framework from kernel?

What's the controller driver? Cadence QSPI?

Regards
Vignesh

> Any idea for a reason of that? That device I have here seems to be equipped
> with an MT25QL256ABA, but that should not be an issue, I think.
> 
> Regards,
> Simon
> 
>>
>> Euginey,
>>
>> Could you test this series on top of latest u-boot master and confirm
>> that your test cases still work?
>>
>> Regards
>> Vignesh
>>
>> Vignesh Raghavendra (3):
>>   spi-nor: spi-nor-ids: Disable SPI_NOR_4B_OPCODES for n25q512* and
>>     n25q256*
>>   spi-nor: spi-nor-ids: Rename mt25qu512a entry
>>   spi-nor: spi-nor-ids: Add entries for newer variants of n25q256* and
>>     n25q512*
>>
>>  drivers/mtd/spi/spi-nor-ids.c | 13 ++++++++-----
>>  1 file changed, 8 insertions(+), 5 deletions(-)
>>
>> --
>> 2.23.0
>>

-- 
Regards
Vignesh


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