[U-Boot] [PATCH v2 1/2] SPI Flash: add support of sst26wf* flash series

[Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>]

On Wed, 2018-04-04 at 19:58 +0530, Jagan Teki wrote:
> On Mon, Mar 26, 2018 at 4:38 PM, Eugeniy Paltsev
> <Eugeniy.Paltsev@synopsys.com> wrote:
> > sst26wf flash series block protection implementation differs
> > from other SST series, so add implementation for sst26wf
> > lock/unlock/is_locked functions.
[snip]
> > 
> > +/* sst26wf series block protection implementation differs from other series */
> > +#if defined(CONFIG_SPI_FLASH_SST)
> > +       if (JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_SST &&
> > +           (JEDEC_ID(info) >> 8) == 0x26) {
> 
> You can directly use JEDEC_ID that may cover id[0], id[1]? or does
> this only for id[0]?

It is only for "JEDEC Device Type Byte" (byte 1) == 0x26;
"Device ID Byte" (byte 2) can be any.

But I can write it like
  (info->id[1] == 0x26)
instead of
  ((JEDEC_ID(info) >> 8) == 0x26)

-- 
 Eugeniy Paltsev