tree bc2932802bae29104495956ca3c9a4d3c4d64246
parent e57d4e49fd2556f0fe267833d35cc57b7e252c06
author Werner Zeh <werner.zeh@siemens.com> 1643090569 +0100
committer Nico Huber <nico.h@gmx.de> 1672935322 +0000

ich_descriptors.c Invert the meaning of 'dual_output' bit

In the Flash Component description register (FLCOMP) bit 30 reports the
capability of using dual output for fast read operation on the flash
component. According to various SPI Programming Guides (checked for
Panther Point, Lewisburg C620, Apollo Lake and Elkhart Lake) the dual
output is enabled when this bit is set and disabled if not. Currently the
logic displays it the other way around when parsing the descriptor.

This patch changes this so now if bit 30 in FLCOMP is not set, dual read
support for fast read operation is shown as disabled.

Change-Id: If6282ac8326ab0b92e9c70c09dba0299bf0deb6f
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/61362
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71444
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>