[flashrom] [PATCH] Avoid SPI RES if REMS is available
audiohacked at gmail.com
Fri Feb 12 19:49:47 CET 2010
On 2/12/10 7:39 AM, Carl-Daniel Hailfinger wrote:
> SPI RES is the most unreliable way to identify chips because it only
> returns a 1-byte ID for most chips. For every given ID out there,
> probably a dozen incompatible flash chips match it.
> We already refuse to identify a chip with RES if that chip responds to
> RDID (3 bytes, good match), and with this patch we additionally refuse
> RES if the chip responds to REMS (2 bytes, still a good match). This
> increases matching accuracy a lot.
> Besides that, the RDID/REMS response checking has been cleaned up for
> better readability.
> Signed-off-by: Carl-Daniel Hailfinger<c-d.hailfinger.devel.2006 at gmx.net>
Acked-by: Sean Nelson <audiohacked at gmail.com>
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