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path: root/src/southbridge/intel/common/gpio.c
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2018-07-28sb/intel/gpio: Cache gpiobase in ramstage and romstagePatrick Rudolph
Implement caching like it's done with pmbase. Change-Id: I26d56a9ff1a8d6e64c164f36e23b846b8b459380 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/27664 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-07-25sb/intel/common/gpio: Only set one bit at timePatrick Rudolph
Make sure to set only one bit instead of arbitrary bits set in argument. Change-Id: I39426193d15d8581f79bc2a45c0edb53b19a2cd3 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/20707 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-01-03sb/intel/common/gpio: Support ICH9M and priorPatrick Rudolph
Write gpio level twice to make sure the level is set after pins have been configred as GPIO and to minimize glitches on newer hardware. Required to set correct GPIO layout on T500. Tested on T500. Change-Id: I691e672c7cb52ca51a80fd29657ada7488db0d41 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/18012 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins)
2016-02-16southbridge/intel/common: Add common gpio.cPatrick Rudolph
Add a common southbridge gpio code to reduce existing duplicated code. By adding it to ram-stage, GPIOs can be changed any time, without the need of direct register access. The files are based on bd82x6x and lynxpoint gpio.c. Change-Id: Iaf0c2f941f2625a5547f9cba79da1b173da6f295 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/12893 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>