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path: root/src/soc/intel/skylake/gpio.c
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2020-04-06soc/intel/skylake: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I7354edb15ca9cbe181739bc2a148f16bb85ab118 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40218 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <felixsinger@posteo.net>
2020-03-18soc: Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I4c110f60b764c97fab2a29f6f04680196f156da5 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39610 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2019-04-29soc/intel: Add GPI interrupt config register offset infoKarthikeyan Ramasubramanian
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>
2019-04-23src: include <assert.h> when appropriateElyes HAOUAS
Change-Id: Ib843eb7144b7dc2932931b9e8f3f1d816bcc1e1a Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/26796 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: David Guckian
2019-03-08coreboot: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)Julius Werner
This patch is a raw application of find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g' Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-02-15soc/intel/skylake: Avoid TOL_1V8 being set for GPP_F4 ~ GPP_F11Kane Chen
According to doc 609208, bit 25 TOL_1V8 in GPP_F4 ~ GPP_F11 DW1 should be clear to prevent unexpected I2C behaviors. BUG=b:124269499 TEST=boot on nami and check bit 25 TOL_1V8 is clear Change-Id: I419ef3e89104ad3611e96bbe23a582504b45be0c Signed-off-by: Kane Chen <kane.chen@intel.com> Reviewed-on: https://review.coreboot.org/c/31368 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-02-16soc/intel/common/block/gpio: Change group offset calculationBora Guvendik
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>
2017-10-02soc/intel/skylake: Use common/block/gpioHannah Williams
Other than switch to use common gpio implementation for skylake based platform, also apply the needed changes for purism board. Change-Id: I06e06dbcb6d0d6fe277dfad57b82aca51f94b099 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/19201 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Youness Alaoui <snifikino@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-10soc/intel/skylake: Use common PCR moduleSubrata Banik
This patch use common PCR library to perform CRRd and CRWr operation using Port Ids, define inside soc/pcr_ids.h Change-Id: Id9336883514298e7f93fbc95aef8228202aa6fb9 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/18674 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-03-09soc/intel/skylake: Add SKL SOC PCH H GPIO supportLi Cheng Sooi
Add SKL/KBL PCH-H GPIO settings referring from SKL PCH-H specifications to support sklrvp11. Split the gpio_defs.h into headers gpio_pch_h_defs.h and gpio_soc_defs.h for PCH-H specific and SOC specific GPIO defs respectively. Change-Id: I5eaf8d809a1244a56038cbfc29502910eb90f9f2 Signed-off-by: Li Cheng Sooi <li.cheng.sooi@intel.com> Signed-off-by: Rahul Kumar Gupta <rahul.kumarxx.gupta@intel.com> Reviewed-on: https://review.coreboot.org/18027 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-30soc/intel/skylake: Remove pad configuration size hardcodingSubrata Banik
Existing GPIO driver inside coreboot use some hardcoded magic number to calculate gpio pad offset. Avoid this kind of hardcoding. Change-Id: I6110435574b141c57f366ccb1fbe9bf49d4dd70a Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/17571 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-07-02soc/intel/skylake: Add function for gpio_t to ACPI pin translationDuncan Laurie
Add the function defined in gpio.h to translate a gpio_t into a value for use in an ACPI GPIO pin table. For skylake this just returns the gpio_t value as the pins are translated directly and they are all in the same ACPI device. Change-Id: I00fad1cafec2f2d63dce9f7779063be0532649c7 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/15520 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-06-09skylake: gpio: Add support for setting 1.8V tolerantDuncan Laurie
Add the voltage tolerance GPIO attribute for configuring I2C/I2S buses that are at 1.8V. This is currently done by passing in a value to FSP but it is needed earlier than FSP if the I2C bus is used in verstage. This does not remove the need for the FSP input parameter, that is still required so FSP doesn't disable what has been set in coreboot. The mainboards that are affected are updated in this commit. This was tested by exercising I2C transactions to the 1.8V codec while in verstage on the google/chell mainboard. Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I93d22c2e3bc0617c87f03c37a8746e22a112cc9c Reviewed-on: https://review.coreboot.org/15103 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-05-21skylake: Add handler for finding ACPI path for GPIODuncan Laurie
Add a handler for the Intel Skylake SOC to return the ACPI path for GPIOs. Since all GPIOs are handled by the same controller they all have the same ACPI path and this is a simple handler that just returns a pointer to the GPIO device that is defined in the DSDT. Change-Id: I24ff3a6f2479d9e7eeace65d49e2f6c2e070f3e9 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/14843 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-01-19intel/skylake: Fix issues found by klockworkNaresh G Solanki
src/soc/intel/skylake/acpi.c Function cbmem_find may return NULL, check before using its result. src/soc/intel/skylake/flash_controller.c Remove dead code: spi_claim_bus is a no-op, always returning 0. src/soc/intel/skylake/gpio.c Check for NULL before using pointers. src/soc/intel/skylake/igd.c Don't copy 0-termination of signature string. src/soc/intel/skylake/lpc.c Don't check unsigned >= 0. src/soc/intel/skylake/systemagent.c Explicitly cast result to 64bit. BRANCH=None BUG=chrome-os-partner:48542 TEST=Built & booted Kunimitsu board. Change-Id: I6cbf4f78382383d3c8c3b15f66c5898ab5bf183a Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: d98a8cdd3d095a6943c0e104cd4938639a62bd14 Original-Change-Id: Id2a31402618f4c9f6f53525ebcf6b71fd67428db Original-Signed-off-by: Naresh G Solanki <Naresh.Solanki@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/317522 Original-Commit-Ready: Naresh Solanki <naresh.solanki@intel.com> Original-Tested-by: Naresh Solanki <naresh.solanki@intel.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/12991 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins)
2015-09-10Skylake: Print GPIO MMIO base and pad config using gpio_debug tokenSubrata Banik
This will help development activity. Default GPIO print settings is disable, need to set gpio_debug = 1 to get GPIO MMIO dump. BUG=None BRANCH=None TEST=build coreboot and boot on Kunimitsu. Change-Id: I70c0a7bee1593cbc8e9fe1599f45bb50e3fc0f42 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 19102612ea40184307ecb0ce8b165b5b989f6911 Original-Change-Id: I4ea6349866c108382de9787bb9ed09fc78d9c770 Original-Signed-off-by: Subrata Banik <subrata.banik@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/296280 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11552 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-08-29intel/skylake: mask off txstate before setting new gpio valueAaron Durbin
The previously driven TX state of the buffer was not being cleared before or'ing in the new value. Fix this oversight. BUG=chrome-os-partner:43522 BRANCH=None TEST=Built and booted glados. Also dumped assembly and saw the masking happen. Change-Id: I74ea469564d37d6b29e9481b0ea704f04f54ac30 Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: d399e8b32b30b8b2275bb6ff8dd24f7d5cfeadda Original-Change-Id: I341b396af5de20ffeeb2e42066b224dd54251793 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/294541 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/11416 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-08-14skylake: fix SMI GPI status handlingAaron Durbin
The current construction for processing SMI GPI events didn't allow for the mainboard to query the state of a particular GPI for the snapshotted SMI event. The skylake part can route GPIs from any (there are design limitations) GPIO group. Those status and enable registers are within the GPIO community so one needs to gather all the possibilities in order to query the state. The call chain did this: southbridge_smi_gpi( clear_alt_smi_status() -> reset_alt_smi_status() -> print_all_smi_status() -> return 0) As a replacement the following functions and types are introduced: struct gpi_status - represent gpi status. gpi_status_get() - per gpi query on struct gpi_status gpi_clear_get_smi_status() - clear and retrieve SMI GPI status mainboard_smi_gpi_handler() - mainboard handler using gpi_status Also remove gpio_enable_all_smi() as that construct was never used, but it also is quite heavy handed in that it would enable SMI generation for all GPIs. BUG=chrome-os-partner:43778 BRANCH=None TEST=Built. Original-Change-Id: Ief977e60de65d9964b8ee58f2433cae5c93872ca Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/291933 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: Ida009393c6af88ffe910195dc79a4c0d2a4c029e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11208 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-14skylake: enable SMI routed GPIsAaron Durbin
The first pass of the GPIO configuration patch didn't enable the SMI# generation for GPIs marked as SMI routed. Now when a pad is configured as SMI routed the bit for the SMI enablement is set accordingly. BUG=chrome-os-partner:43778 BRANCH=None TEST=Built and booted glados. Confirmed SMI_EN being set for SMI routed GPIOs. Original-Change-Id: I796b68accb7a49b03ef18539861e72fa9d169c26 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/292010 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I3be770234d3f605ae630ecd5cd4cfe4867243999 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11207 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-14skylake: remove ec_smi_gpio and alt_gp_smi_enAaron Durbin
The ec_smi_gpio and alt_gp_smi_en devicetree options are goign to be removed. The plan for skylake is to set the settings by the mainboard through either gpio pad configuration or through helper functions. Moreover, these values only allow *1* SMI GPIO configuration in that the following has to be true: alt_gp_smi_en = 1 << (ec_smi_gpio % 24) If not, then another gpio(s) from the same group has the SMI_EN bit set for it. Lastly, remove all the subsequent dependencies as they are no longer used: enable_alt_smi() and gpio_enable_group(). BUG=chrome-os-partner:43778 BRANCH=None TEST=None Original-Change-Id: I749a499c810d83de522a2ccce1dd9efb0ad2e20a Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/291931 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I2e1cd6879b76923157268a1449c617ef2aada9c4 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11204 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-14skylake: provide GPE0 routing devicetree configurationAaron Durbin
On skylake the GPE0 routing can be dynamically changed to a particular GPIO group. Provide the ability for the mainboard to set the route accordingly. If any of the values in the devicetree are the same the current setting in the PMC register is used. The GPIO communities need to have matching configuration for the plumbing to work properly. BUG=chrome-os-partner:43778 BRANCH=None TEST=Built and booted glados w/ and w/o devicetree changes. Fields are set accordingly. Original-Change-Id: I263d648c8ea8a70b21570f01b333d05a5fa2a4e3 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/291930 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I966d38bc197dbb52a2ba50927c06e243e169afbe Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11203 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-14skylake: provide native gpio functionalityAaron Durbin
It's important to be able to configure the gpio pads at various stages instead of a single place using FSP. Without this support there is a lot of duplicated open-coded pad configuration taking place both within the SoC code and mainboards. Current limitation is that all GPIOs are in ACPI mode. i.e. The HostSW ownership register sets the pad configuration to only update GPI_GPE_STS, GPI_NMI_STS and/or GPI_SMI_STS. The GPI_STS update is masked within the GPIO community registers. BUG=chrome-os-partner:42982 BRANCH=None TEST=Built and booted glados. Original-Change-Id: Id8a00e99c7a4c3912de2feaff9cea12b402f2c68 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/289789 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I4c86b47ac5ab004f2bfd7cb07dd23c458f7dbb7c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11174 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-07-29skylake: prefix the gpio functions with 'gpio_'Aaron Durbin
In order to provide more clarity on what some of the gpio functions are doing add a 'gpio_' prefix to the globally visible functions. BUG=chrome-os-partner:42982 BRANCH=None TEST=Built glados. Change-Id: I4cf48558c1eb9986ed52b160b6564ceaa3cb94b4 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Commit-Id: f79ef113797884063621fe6cd5cc374c53390ebd Original-Change-Id: I0d8003efff77b92802e0caf8125046203f315ae4 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/288192 Original-Reviewed-by: Robbie Zhang <robbie.zhang@intel.com> Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/11067 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-16soc/intel: Add Skylake SOC supportLee Leahy
Add the files to support the Skylake SOC. Matches chromium tree at 927026db BRANCH=none BUG=None TEST=Build and run on a Skylake platform Change-Id: I80248f7e47eaf13b52e3c7ff951eb1976edbaa15 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10341 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-16soc/intel/skylake: Use Broadwell as comparision base for Skylake SOCLee Leahy
Use the Broadwell implementation as the comparison base for Skylake. BRANCH=none BUG=None TEST=None Change-Id: I22eb55ea89eb0d6883f98e4c72a6d243e819e6d8 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10340 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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