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

Simon Goldschmidt simon.k.r.goldschmidt at gmail.com
Tue Sep 24 07:02:42 UTC 2019

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).

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.


> 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

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