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Provide option in chip.h to set dynamic local clock gating
setting.
BUG=b:130764684
TEST=Able to build and boot CML.
Change-Id: Iec60076398b745e11d5025e4d7a5c35374d918a4
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32790
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Add the offset information for GPI interrupt status and enable register
in the pad_community structure. Populate the concerned information for
individual SoCs. This offset information is required to clear the
interrupt configuration during the bootup.
BUG=b:130593883
BRANCH=None
TEST=Ensure that the interrupt configuration are cleared during bootup.
Ensured that the system boots to ChromeOS.
Change-Id: I8af877a734e8d49b700d720b736da8764985a8f8
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32446
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Denote appropriate reserved groups as virtual GPIOs in Cannonlake LP/H SoC.
Change-Id: I4da161b91f83749b0ae29b387b5c99c1c3f706d8
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/c/31552
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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The GPIO drivers in Windows and Linux for the Cannonlake CPU
have a sparse GPIO map and do not allocate pins contiguously.
Each GPIO group is allocated as 32 pads regardless of whether
the hardware actually has that many in the group.
It appears this originated with a bug in Windows/UEFI and was
carried over to Linux in order to work with existing firmware:
https://lore.kernel.org/patchwork/patch/855244/
In order to support using ACPI GPIOs it is necessary for coreboot
to be compatible with this implementation. The GPIO groups that
are usable by the OS are declared with a pad base which is then
used to compute the number for ACPI GPIOs.
BUG=b:120686247
TEST=tested with write protect GPIO on sarien board. Before this
change the ACPI pin number was 220 which did not correspond to the
pin number in Linux. After this change the ACPI number is 303,
which maps to the correct GPIO in Linux. Now the GPIO value reported
by the kernel changes when the WP pin is toggled in hardware.
Change-Id: I4f1a9e118d7e48f2445ccbb62a12a22e9a832c51
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/30133
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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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