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The kernel GPIO driver only expects some GPIO communities to be exported
in the _CRS and it will not work correctly if the other communities are
exported.
CNL-LP: GPIO communities 0, 1, 4
CNL-H: GPIO communities 0, 1, 3, 4
Additionally one of the pin offset values was incorrect in GPIO
community 1 for CNL-LP. This doesn't have any specific failure mode but
it was found when auditing the GPIO code.
Details of the kernel expected map can be found in the linux kernel at
drivers/pinctrl/intel/pinctrl-cannonlake.c
BUG=b:120686247
TEST=check /sys/kernel/debug/pinctrl/INT34BB:00/pins to ensure that
pins >= 198 are not reading all zeros for the pin config registers.
Change-Id: Ie1a2f3b9f9f4b24a9fc57e468dee50e99753912f
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/30112
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Add group information for each gpio community and use it to
calculate offset of a pad within its group. Original implementation
assumed that the number of gpios in each group is same but that lead to
a bug for cnl since numbers differ for each group.
BUG=b:69616750
TEST=Need to test again on SKL,CNL,APL,GLK
Change-Id: I02ab1d878bc83d32222be074bd2db5e23adaf580
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Reviewed-on: https://review.coreboot.org/22571
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Fill the missing GPIO pin definitions, includeing community 3.
Change-Id: I73b7803c73446660f5c25b1263e47bb50a955c56
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22482
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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PMC and GPIO DWx definition is not identical, hence update that to
correct information. For cannonlake lp PCH, GPIO group C, group E and
group GPD is different for PMC GPIO_CFG and GPIO MISCCFG. Also add
function call to set up GPE routing in bootblock stage.
TEST=Boot up into OS, and manually check PMC GPE status
Change-Id: I1edb83edabc72e8a762b129cf51dcd936cd37ddf
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22908
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
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Add PMC pci driver on top of PMC common code, also include pmc init code
reference from skylake.
Change-Id: I95895a3e26cdebd98a4e54720bd4730542707d7e
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/21251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The following changes have been applied for GPIO:
1. Correct port id using by GPIO community 3 for CNL-LP.
2. Correct number of doubleword for each pad from 2 to 4.
Change-Id: I717d1ffba8e6722543f4cf8083fe6145fa85e184
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/20775
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Change-Id: I0bbdd641244f0c7baaa2146dcfde6431bde387c5
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/20074
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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