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path: root/src/soc/intel/alderlake/gpio.c
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2022-05-16soc/inte/*/gpio; Add GPE_EN and GPE_STS register definitionMaulik V Vaghela
coreboot needs to set GPE_EN bit for the GPIOs which are wake capable from s0ix/sleep. Due to GPIO locking mechanism, coreboot/OS will not be able to write GPE_EN register post GPIO has been locked. This patch adds support in SoC code to provide correct offset for GPE_EN and GPE_STS registers to the common code. Plan is to use this offsets to set GPE_EN bits before GPIO locking in coreboot which will be part of subsequent CL. BUG=b:222375516 BRANCH=firmware-brya-14505.B TEST=Check if code compiles for Brya and correct offset values are printed. Change-Id: I6b813b30b8b360f8eccbf539b57387310e380560 Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64088 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-02-04soc/intel/alderlake: Remove `soc_gpio_lock_config()` override functionSubrata Banik
This patch removes `gpios_to_lock` lists and `soc_gpio_lock_config` override function from Alder Lake SoC as the required config (SOC_INTEL_COMMON_BLOCK_SMM_LOCK_GPIO_PADS) to perform GPIO PAD lock configuration using SMM is not enabled. Note: The current assumption is that the responsibility of locking the sensitive GPIOs (from getting reprogrammed by OS or other SW) remains with the mainboard. BUG=b:208827718 TEST=Able to build and boot brya. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I2e22e8453b0ec7d34c0f7cb4c17e3336286581c8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61588 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com> Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
2022-02-01soc/intel/alderlake: Add GPP_I GPIO group for Alder Lake N SOCKrishna Prasad Bhat
Add definitions for GPP_I GPIO group pins on Alder Lake N SOC and GPIO IRQ routing information. GPP_I GPIO group belongs to GPIO community 1. Hence GPIO community 1 in Alder Lake N contains GPP_S, GPP_I, GPP_H, GPP_D GPIO groups. GPIO groups 1-6 in Doc# 645550 Chapter 36 corresponds to GPIO communities 5-0 respectively. BUG=b:213535859 Change-Id: Ia71a399c03cb7d098a381bd9439d448e8a620761 Signed-off-by: Krishna Prasad Bhat <krishna.p.bhat.d@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/61106 Reviewed-by: Kangheui Won <khwon@chromium.org> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-01-06soc/intel/alderlake: Fix GPIO reset mapping as per GPIO BWGSubrata Banik
This patch fixes the documentation discrepancy of GPIO reset type between PCH EDS and GPIO BWG. As per GPIO BWG, there are four GPIO reset types in Alder Lake as below: - Power Good - (Value 00) - Deep - (Value 01) - Host Reset/PLTRST - (Value 10) - RSMRST for GPD/Reserved for GPP - (Value 11) Hence, created two different reset types for `GPP` and `GPD`. Also, replaced PAD_CFG0_LOGICAL_RESET_x macros with PAD_RESET(). BUG=b:213293047 Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I4b8742c7a0cc1dc420e3e22e34a16355294ed61b Reviewed-on: https://review.coreboot.org/c/coreboot/+/60789 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-12-07soc/intel/alderlake: enable gpio lockingNick Vaccaro
This change supplies a list of ADL gpios that are connected to non-host (x86) controllers and should be locked after initial configuration. Set SOC_INTEL_COMMON_BLOCK_SMM_LOCK_GPIO_PADS to enable GPIO locking. BUG=b:210430600 TEST='emerge-brya coreboot chromeos-bootimage', flash and verify that brya0 boots successfully to kernel. Change-Id: I457bab39f945ab31a89542c6498a73af70cbf9ee Signed-off-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58352 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
2021-10-26soc/intel/alderlake: set lock offset for gpio pad communitiesNick Vaccaro
Initialize the pad_cfg_lock_offset field for the various gpio pad_community structures in the adl_communities. BUG=b:201430600 TEST='emerge-brya coreboot' and verify it compiles successfully. Change-Id: I2cd3e43a84b0140bb2aeae5de1e299db714d419b Signed-off-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58350 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-07-15soc/intel/alderlake: Add virtual GPIOs for community 1Maulik V Vaghela
Alder Lake SoC has virtual GPIOs for community 1 which was being programmed by FSP and hence was skipped by coreboot. As part of moving most of the GPIO programming to coreboot, we're skipping this programming in FSP now. TEST=Check register offset to see if programming is correct. Change-Id: I4d48553d14465df50e5aaaf27ab26c6a1b70d4cf Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55270 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-14soc/intel/alderlake: Add known GPIO virtual wire informationDeepti Deshatty
GPIO communities 0, 1, and 4 have virtual wire indexes & bits for at least some of their groups; add the known information into the community definitions. This patch is ported form tigerlake. Change-Id: I2f1e2413d06e8afe4233d7111763cb45b78f845b Signed-off-by: Deepti Deshatty <deepti.deshatty@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/54088 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-05-14soc/intel/alderlake: Add known CPU Port IDs for GPIO communitiesDeepti Deshatty
Change-Id: Id5fa5b10edeb3445a2d2453d9122376041577598 Signed-off-by: Deepti Deshatty <deepti.deshatty@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/54087 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-05-05soc/intel/alderlake: Add GPIO definition for CPU PCIe vGPIOMaulik V Vaghela
Adding GPIO definition for community 3 which is CPU reserved GPIO used by CPU side PCIe root ports. We did not have this definition since FSP used to program this GPIOs. Now, instead of FSP, coreboot programs CPU PCIe GPIOs for CLKSRC and lanes to put GPIOs in native mode. Thus adding definition of this virtual GPIOs in this CL. BUG=None BRANCH=None TEST=Check if correct registers are being programmed Change-Id: I481ea7e3ba948bf6d37b97d08c675a18ee68125d Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52783 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-03-27soc/intel/alderlake: Correct GPE DWx assignment as per EDSSubrata Banik
List of changes: 1. Update GPIO Group to GPE DWx assignment encoding as per MISCCFG register per GPIO Community. 2. PMC_GPP_* macros are also updated as per GPIO_CFG register in PMC space. BUG=b:183464235 TEST=Able to fix the TPM IRQ issue on SM. Change-Id: Id9f57b0b5726315f5ebba013f11d52ed3ee34484 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51789 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-09-27soc/intel/alderlake: Add GPIOs for Alder Lake SOCSubrata Banik
Add definitions for the GPIO pins on Alder Lake LP, as well as GPIO IRQ routing information and supporting ACPI ASL. For now, add the following 5 GPIO communities and 13 GPIO groups: Comm. 0: GPP_B, GPP_T, GPP_A Comm. 1: GPP_S, GPP_H, GPP_D Comm. 2: GPD Comm. 4: GPP_C, GPP_F, GPP_E, GPP_HVMOS Comm. 5: GPP_R, GPP_SPI0 Change-Id: I77b9dcc46aceaf530e2054c9cacd7b026ebbb96b Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45571 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
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