Re: [PATCH v9 06/19] mtd: spi-nor: sfdp: default to addr_width of 3 for configurable widths

[Tudor.Ambarus]

On Monday, May 25, 2020 12:15:31 PM EEST Pratyush Yadav wrote:
> JESD216D.01 says that when the address width can be 3 or 4, it defaults
> to 3 and enters 4-byte mode when given the appropriate command. So, when
> we see a configurable width, default to 3 and let flash that default to
> 4 change it in a post-bfpt fixup.
> 
> This fixes SMPT parsing for flashes with configurable address width. If
> the SMPT descriptor advertises variable address width, we use
> nor->addr_width as the address width. But since it was not set to any
> value from the SFDP table, the read command uses an address width of 0,
> resulting in an incorrect read being issued.
> 
> Signed-off-by: Pratyush Yadav <p.yadav@xxxxxx>
> ---
>  drivers/mtd/spi-nor/sfdp.c | 1 +
>  1 file changed, 1 insertion(+)

Applied, thanks.