summaryrefslogtreecommitdiff
path: root/src/drivers/i2c
AgeCommit message (Collapse)Author
2017-02-17driver/i2c/max98927: add i2c driver for Maxim 98927 codecRizwan Qureshi
Maxim 98927 kernel driver requires entries in the ACPI SSDT table, add a SSDT generator as part of this driver. BUG=chrome-os-partner:62051 BRANCH=None TEST=After boot, dump and verify that the generated SSDT ACPI table has the required entries. Change-Id: Ic2d4d8449288bc00d085852220b2e1e7a208e9ef Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com> Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Signed-off-by: M Naveen <naveen.m@intel.com> Signed-off-by: Dylan Reid <dgreid@chromium.org> Reviewed-on: https://review.coreboot.org/18211 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-01-29i2c/generic: Allow GPIOs to be put in _CRS and PowerResource in ACPIFurquan Shaikh
Linux kernel expects that power management with ACPI should always be handled using PowerResource. However, some kernel drivers (e.g. ELAN touchscreen) check to see if reset gpio is passed in by the BIOS to decide whether the device loses power in suspend. Thus, until the kernel has a better way for drivers to query if device lost power in suspend, we need to allow passing in of GPIOs via _CRS as well as exporting PowerResource to control power to the device. Update mainboards to export reset GPIO as well as PowerResource for ELAN touchscreen device. BUG=chrome-os-partner:62311,chrome-os-partner:60194 BRANCH=reef TEST=Verified that touchscreen works on power-on as well as after suspend-resume. Change-Id: I3409689cf56bfddd321402ad5dda3fc8762e6bc6 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/18238 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2017-01-03i2c/tpm: Ignore 0xFF bytes for status and burstCountJulius Werner
We've found that the SLB9645 TPM sometimes seems to randomly start returning 0xFF bytes for all requests. The exact cause is yet unknown, but we should try to write our TIS code such that it avoids bad interactions with this kind of response (e.g. any wait_for_status() immediately succeeds because all "status bits" are set in the response). At least for status and burstCount readings we can say for sure that the value is nonsensical and we're already reading those in a loop until we get valid results anyway, so let's add code to explicitly discount 0xFF bytes. BRANCH=oak BUG=chrome-os-partner:55764 TEST=None Change-Id: I934d42c36d6847a22a185795cea49d282fa113d9 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/420470 Reviewed-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-on: https://review.coreboot.org/18006 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-12-16drivers/i2c/generic: Allow mainboards to export reset and enable GPIOsFurquan Shaikh
Add power management type config option that allows mainboards to either: 1. Define a power resource that uses the reset and enable gpios to power on and off the device using _ON and _OFF methods, or 2. Export reset and enable GPIOs in _CRS and _DSD so that the OS can directly toggle the GPIOs as required. GPIO type needs to be updated in drivers_i2c_generic_config to use acpi_gpio type so that it can be used for both the above cases. BUG=chrome-os-partner:60194 BRANCH=None TEST=Verified that elan touchscreen works fine on reef using exported GPIOs. Change-Id: I4d76f193f615cfc4520869dedc55505c109042f6 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17797 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-12-16drivers/i2c/hid: Add generic I2C HID driverDuncan Laurie
Add a generic I2C-HID driver for these types of devices that do not need extra functionality. This allows a new device to be added without having to write a new driver. The i2c-hid PNP0C50 is automatically added as the _CID for the device in the ACPI Device. BUG=chrome-os-partner:58666 TEST=used on eve to describe a new i2c-hid touch controller Change-Id: I94e9531a72f9bf1d6b3ade362b88883b21b83d0a Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/17856 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-12-15drivers/i2c: Pass in i2c_generic_config into i2c_generic_fill_ssdtFurquan Shaikh
Remove any assumptions required for the drivers using i2c_generic to have drivers_i2c_generic_config structure at the start of the driver config. Instead pass in a pointer to drivers_i2c_generic_config from the calling driver. Change-Id: I51dc4cad1c1f246b51891abf7115a7120e87b098 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17857 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-12-15pcf8523: Fix wrong initialization of several registersWerner Zeh
In the case where the RTC is initialized after the battery is completely drained the bits for power_mode and cof_selection are set up with wrongly applied masks. In the case where the RTC is re-initialized again with no power-loss after the last initialization the bits for cap_sel, power_mode and cof_selection are not shifted to the right position. Both errors lead to a wrong initialization of the RTC and in turn to a way larger current consumption (instead of 120 nA the RTC current rises to over 2 µA). This patch fixes both errors and the current consumption is in the right range again. TEST=booted mc_bdx1 and verified current consumption of RTC Change-Id: I8594f6ac121a175844393952db2169dbc5cbd2b2 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/17829 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-11-16drivers/i2c/alps: Add support for ALPS Touchpad driverBarnali Sarkar
Add support for I2C ALPS Touchpad Device Driver. BUG=none BRANCH=none TEST=Build and booted successfully on KBL RVP and Touchpad is working Change-Id: I78b77bd7c4694ccf61260724f593bd59545c70e6 Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com> Reviewed-on: https://review.coreboot.org/17390 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-11-10drivers/i2c/wacom: Make the driver more genericFurquan Shaikh
Wacom I2C driver can be used by devices other than touchscreen. e.g. digitizer. So there is no need to name the driver with touchscreen specific attributes. Only a separate descriptor name is required that needs to be set by mainboard correctly. BUG=chrome-os-partner:56246 BRANCH=None TEST=Compiles successfully. Change-Id: I0d32a4adae477373b3f4c5f3abbe188860701194 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17341 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-11-09google/pyro: Update WACOM touchscreen ACPI _HIDJanice Li
WACOM request to add a new identifier `WCOMNTN2`, and use that for the board Pyro with all LCD combinations. BRANCH=master BUG=chrome-os-partner:58093 TEST=emerge-pyro vboot_reference coreboot chromeos-bootimage Signed-off-by: Janice Li <janice.li@quantatw.com> Change-Id: I95cf357efba958d7e864d2736d324e0aad70e307 Reviewed-on: https://review.coreboot.org/17257 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-11-07drivers/i2c/tpm/cr50: Increase IRQ timeoutDuncan Laurie
Increase the IRQ timeout to prevent issues if there is a delay in the TPM responding to a command. Split the no-IRQ case out so it doesn't suffer unnecessarily. BUG=chrome-os-partner:59191 TEST=suspend/resume testing on eve board Change-Id: I1ea7859bc7a056a450b2b0ee32153ae43ee8699f Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/17204 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-10-26drivers/i2c/wacom_ts: Add support for WCOM touchscreen device driverFurquan Shaikh
BUG=chrome-os-partner:57846 Change-Id: Id6bd91b3fd6420994ad5811d362618b1a38a8afa Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17092 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-10-25drivers/i2c/generic: Re-factor SSDT generation codeFurquan Shaikh
1. Export i2c_generic_fill_ssdt to allow other device-specific i2c drivers to share and re-use the same code for generating AML code for SSDT. In order to achieve this, following changes are required: a. Add macro I2C_GENERIC_CONFIG that defines a structure with all generic i2c device-tree properties. This macro should be placed by the using driver at the start of its config structure. b. Accept a callback function to add any device specific information to SSDT. If generic driver is used directly by a device, callback would be NULL. Other devices using a separate i2c driver can provide a callback to add any properties to SSDT. 2. Allow device to provide _CID. BUG=chrome-os-partner:57846 Change-Id: I3a0054e22b81f9d6d407bef417eae5e9edc04ee4 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17089 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-10-25drivers/i2c/generic: Enable support for adding PowerResource for deviceFurquan Shaikh
Add support to allow a device to define PowerResource in its SSDT AML code. PowerResouce ACPI generation expects SoC to define the callbacks for generating AML code for GPIO manipulation. Device requiring PowerResource needs to define following parameters: 1. Reset GPIO - Optional, GPIO to put device into reset or take it out of reset. 2. Reset delay - Delay after reset GPIO is de-asserted (default 0). 3. Enable GPIO - Optional, GPIO to enabled device. 4. Enable delay - Delay after enable GPIO is asserted (default 0). BUG=chrome-os-partner:55988 Change-Id: Ieb2dd95fc1f555f5de66f3dda425172ac5b75dad Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17081 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins)
2016-10-24drivers/i2c/generic: Return correct name for acpi_nameFurquan Shaikh
Return config->name if it is not NULL. BUG=chrome-os-partner:55988 Change-Id: I9ae229949b73de6f991383daae8d962d6cf457a7 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17077 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-10-07src/drivers: Remove whitespace after memcpy & memsetElyes HAOUAS
Change-Id: If79eb706b6d44f7c34dfe31a1545f5850870b334 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16866 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-10-07Gale: Fix the orange color to match the UX docSuresh Rajashekara
UX Doc = go/gale-hw-ui This color wasn't changed earlier as the change wasn't done in the OS also. However, since we cannot change this later in FW (but OS can change anytime), I am making this change after discussing with the UX team. BUG=b:31501528, b:31633562 TEST=Change the device state to 'recovery mode' to observe the new color. BRANCH=none Change-Id: Ia91f14eb77492095cb41a9de0bb9790e72aa4851 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 36a3d8c6eabbc0b23d0a15d5bddc5ed3bdeebe70 Original-Change-Id: I88768b94cf91804a6005e44b1a168e059698ec4b Original-Signed-off-by: Suresh Rajashekara <sureshraj@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/388206 Original-Commit-Ready: Suresh Rajashekara <sureshraj@chromium.org> Original-Tested-by: Suresh Rajashekara <sureshraj@chromium.org> Original-Reviewed-by: Christopher Book <cbook@chromium.org> Original-Reviewed-by: Kan Yan <kyan@google.com> Reviewed-on: https://review.coreboot.org/16767 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-10-06i2c/ww_ring: LED changes as per UX team feedback.Suresh Rajashekara
Colors and patterns as defined by the UX team BUG=b:31501528 TEST=Move the device to different states in FW using rec and dev button and verify the colors BRANCH=None Change-Id: I66d41a54590cd3ce4e5202c7cfa890f462fe195e Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 703559d5dddaeeb7d435d6cadbb2009a1b7a76c8 Original-Change-Id: I95ab1fa59b483396ff1498a28f1ee98ac08d02d7 Original-Signed-off-by: Suresh Rajashekara <sureshraj@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/387258 Original-Commit-Ready: Suresh Rajashekara <sureshraj@chromium.org> Original-Tested-by: Suresh Rajashekara <sureshraj@chromium.org> Original-Reviewed-by: Christopher Book <cbook@chromium.org> Original-Reviewed-by: Kan Yan <kyan@google.com> Reviewed-on: https://review.coreboot.org/16718 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-10-06i2c/ww_ring: Change LED configuration for Gale EVT3Suresh Rajashekara
Gale EVT3 has only one LED controller (earlier we had 2). Remove the support for the second controller and also the corresponding microcode. The color values used are the same as onHub (Arkham to be specific). BUG=b:30890905 TEST=Move the device to different states manually by appropriate actions (like dev mode, rec mode etc) and observe the different colors. BRANCH=None Change-Id: I853035610ea7ea7c8d29c30d2de13c9e2e786b2b Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 593905d2d69daa7482318aa5f5c5cd7cf984043e Original-Change-Id: If8f22abd605faac6f6215ef600041740ce15ea0c Original-Signed-off-by: Suresh Rajashekara <sureshraj@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/370821 Original-Commit-Ready: Suresh Rajashekara <sureshraj@chromium.org> Original-Tested-by: Suresh Rajashekara <sureshraj@chromium.org> Original-Reviewed-by: Kan Yan <kyan@google.com> Reviewed-on: https://review.coreboot.org/16697 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-10-05drivers/i2c/tpm/cr50: Initialize IRQ status handler before probeDuncan Laurie
Move the setup of the IRQ status handler so it will be set up properly before the early probe happens. BUG=chrome-os-partner:53336 Change-Id: I4380af1233d2a252899459635a3cb69ca196088d Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16861 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2016-10-02Kconfig: Update default hex values to start with 0xMartin Roth
Kconfig hex values don't need to be in quotes, and should start with '0x'. If the default value isn't set this way, Kconfig will add the 0x to the start, and the entry can be added unnecessarily to the defconfig since it's "different" than what was set by the default. A check for this has been added to the Kconfig lint tool. Change-Id: I86f37340682771700011b6285e4b4af41b7e9968 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/16834 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2016-09-28drivers/i2c/generic: Add config for marking device as probedDuncan Laurie
Add a config option to the generic I2C device driver to indicate to the OS that this device should be probed before being added. This can be used to provide ACPI device instantiations to devices that may not actually exist on the board. For example, if multiple trackpad vendors are supported on the same board they can both be described in ACPI and the OS will probe the address and load the driver only if the device responds to the probe at that address. BUG=chrome-os-partner:57686 Change-Id: I22cffb4b15f25d97dfd37dc58bca315f57bafc59 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16742 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm/cr50: Support interrupts for statusDuncan Laurie
Support reading the ACPI GPE status (on x86) to determine when the cr50 is ready to return response data or is done processing written data. If the interrupt is not defined by Kconfig then it will continue to use the safe delay. This was tested with reef hardware and a modified cr50 image that generates interrupts at the intended points. BUG=chrome-os-partner:53336 Change-Id: Ic8f805159650c45382cacac8840450a1f8b4d7a1 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16672 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm/cr50: Improve data handling and function namesDuncan Laurie
Unify the function names to be consistent throughout the driver and improve the handling while waiting for data available and data expected flags from the TPM. BUG=chrome-os-partner:53336 Change-Id: Ie2dfb7ede1bcda0e77070df945c47c1428115907 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16668 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm/cr50: Clean up locality functionsDuncan Laurie
Clean up the mask and timeout handling in the locality functions that were copied from the original driver. BUG=chrome-os-partner:53336 Change-Id: Ifdcb3be0036b2c02bfbd1bcd326e9519d3726ee0 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16667 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm/cr50: Rename i2c read/write functionsDuncan Laurie
Rename the low-level functions from iic_tpm_read/write to cr50_i2c_read/write to better match the driver name, and pass in the tpm_chip structure to the low-level read/write functions as it will be needed in future changes. BUG=chrome-os-partner:53336 Change-Id: I826a7f024f8d137453af86ba920e0a3a734f7349 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16666 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm/cr50: Clean up timeoutsDuncan Laurie
Use two different timeouts in the driver. The 2ms timeout is needed to be safe for cr50 to cover the extended timeout that is seen with some commands. The other at 2 seconds which is a TPM spec timeout. BUG=chrome-os-partner:53336 Change-Id: Ia396fc48b8fe6e56e7071db9d74561de02b5b50e Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16665 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm/cr50: Reduce max buffer sizeDuncan Laurie
Reduce the static buffer size from the generic default 1260 down to 64 to match the max FIFO size for the cr50 hardware and reduce the footprint of the driver. BUG=chrome-os-partner:53336 Change-Id: I6f9f71d501b60299edad4b16cc553a85391a1866 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16664 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm: Split cr50 driver from main driverDuncan Laurie
Originally I thought it would be cleaner to keep this code in one place, but as things continue to diverge it ends up being easier to split this into its own driver. This way the different drivers in coreboot, depthcharge, and the kernel, can all be standalone and if one is changed it is easier to modify the others. This change splits out the cr50 driver and brings along the basic elements from the existing driver with no real change in functionality. The following commits will modify the code to make it consistent so it can all be shared with depthcharge and the linux kernel drivers. BUG=chrome-os-partner:53336 Change-Id: I3b62b680773d23cc5a7d2217b9754c6c28bccfa7 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16663 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-21drivers/i2c/tpm: Move common variables to headerDuncan Laurie
Move the common enums and variables to tpm.h so it can be used by multiple drivers. BUG=chrome-os-partner:53336 Change-Id: Ie749f13562be753293448fee2c2d643797bf8049 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16662 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-19Revert "drivers/i2c/tpm: Move common variables to header"Duncan Laurie
This reverts commit 64df72e8e2d1c086705325533767ca5e201e842a.
2016-09-19Revert "drivers/i2c/tpm: Split cr50 driver from main driver"Duncan Laurie
This reverts commit c565f9910707b91fcc7a27bab28806e558bb474d.
2016-09-19Revert "drivers/i2c/tpm/cr50: Reduce max buffer size"Duncan Laurie
This reverts commit 97a2a1ece152b6d40a524361721405b77c37959d.
2016-09-19Revert "drivers/i2c/tpm/cr50: Clean up timeouts"Duncan Laurie
This reverts commit 93c778688f0bf2f90334505a3082a2cd4ce1623a.
2016-09-19Revert "drivers/i2c/tpm/cr50: Rename i2c read/write functions"Duncan Laurie
This reverts commit 6f5ceb26b9b3e1455ebbd6192e1d2c832bddc77e.
2016-09-19Revert "drivers/i2c/tpm/cr50: Clean up locality functions"Duncan Laurie
This reverts commit 557e1a729a9ca89e814220b6203b7ac0dc446913.
2016-09-19Revert "drivers/i2c/tpm/cr50: Improve data handling and function names"Duncan Laurie
This reverts commit 1241e7db55aff313e56bf4546d969c11368b08a2.
2016-09-19Revert "drivers/i2c/tpm/cr50: Support interrupts for status"Duncan Laurie
This reverts commit a5e419c51187d24818f056327746a18676fe3a20.
2016-09-19drivers/i2c/tpm/cr50: Support interrupts for statusDuncan Laurie
Support reading the ACPI GPE status (on x86) to determine when the cr50 is ready to return response data or is done processing written data. If the interrupt is not defined by Kconfig then it will continue to use the safe delay. This was tested with reef hardware and a modified cr50 image that generates interrupts at the intended points. BUG=chrome-os-partner:53336 Change-Id: I9f78f520fd089cb4471d8826a8cfecff67398bf8 Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm/cr50: Improve data handling and function namesDuncan Laurie
Unify the function names to be consistent throughout the driver and improve the handling while waiting for data available and data expected flags from the TPM. BUG=chrome-os-partner:53336 Change-Id: I7e3912fb8d8c6ad17d1af2d2a7189bf7c0c52c8e Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm/cr50: Clean up locality functionsDuncan Laurie
Clean up the mask and timeout handling in the locality functions that were copied from the original driver. BUG=chrome-os-partner:53336 Change-Id: Ifa1445224b475aec38c2ac56e15cb7ba7fcd21ea Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm/cr50: Rename i2c read/write functionsDuncan Laurie
Rename the low-level functions from iic_tpm_read/write to cr50_i2c_read/write to better match the driver name, and pass in the tpm_chip structure to the low-level read/write functions as it will be needed in future changes. BUG=chrome-os-partner:53336 Change-Id: Ib4a68ce1b3a83ea7c4bcefb9c6f002f6dd4aac1f Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm/cr50: Clean up timeoutsDuncan Laurie
Use two different timeouts in the driver. The 2ms timeout is needed to be safe for cr50 to cover the extended timeout that is seen with some commands. The other at 2 seconds which is a TPM spec timeout. BUG=chrome-os-partner:53336 Change-Id: I77fdd7ea646b8b2fef449f07e3a08bcce174fe8b Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm/cr50: Reduce max buffer sizeDuncan Laurie
Reduce the static buffer size from the generic default 1260 down to 64 to match the max FIFO size for the cr50 hardware and reduce the footprint of the driver. BUG=chrome-os-partner:53336 Change-Id: Ia88facca607f3fd5072d0d986323fde075f15855 Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm: Split cr50 driver from main driverDuncan Laurie
Originally I thought it would be cleaner to keep this code in one place, but as things continue to diverge it ends up being easier to split this into its own driver. This way the different drivers in coreboot, depthcharge, and the kernel, can all be standalone and if one is changed it is easier to modify the others. This change splits out the cr50 driver and brings along the basic elements from the existing driver with no real change in functionality. The following commits will modify the code to make it consistent so it can all be shared with depthcharge and the linux kernel drivers. BUG=chrome-os-partner:53336 Change-Id: Ia9a65e72519b95f5739e3b7a16b9c2431d64ebe2 Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-19drivers/i2c/tpm: Move common variables to headerDuncan Laurie
Move the common enums and variables to tpm.h so it can be used by multiple drivers. BUG=chrome-os-partner:53336 Change-Id: I0febe98620d0ddd4ec6b46cd3073e48c12926266 Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-14drivers/i2c/tpm: Clean up handling of command readyDuncan Laurie
The TPM driver was largely ignoring the meaning of the command ready bit in the status register, instead just arbitrarily sending it at the end of every receive transaction. Instead of doing this have the command ready bit be set at the start of a transaction, and only clear it at the end of a transaction if it is still set, in case of failure. Also the cr50 function to wait for status and burst count was not waiting the full 2s that the existing driver does so that value is increased. Also, during the probe routine a delay is inserted after each status register read to ensure the TPM has time to actually start up. Change-Id: I1c66ea9849e6be537c7be06d57258f27c563c1c2 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16591 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-09-08drivers/i2c/tpm: Fix early TPM probeDuncan Laurie
The early TPM probe was done directly in tis.c ignoring the lower layer that provides appropriate access to the chip. Move this into a tpm_vendor_probe() function so it can use iic_tpm_read() with all of the built-in delays and semantics instead of calling i2c_readb() directly from the wrong layer. This fixes early init failures that were seen with the cr50 i2c tpm on the reef mainboard. Change-Id: I9bb3b820d10f6e2ea24c57b90cf0edc813cdc7e0 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16527 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-06drivers/i2c/tpm: Fix error handling for tis structure not initializedDuncan Laurie
If the TPM completely fails to respond then the vendor structure may not have assigned handlers yet, so catch that case and return error so the boot can continue to recovery mode instead of asserting over and over. Change-Id: If3a11567df89bc73b4d4878bf89d877974044f34 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16416 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-06drivers/i2c/tpm: Add support for generating ACPI tableDuncan Laurie
Add code to generate an ACPI descriptor for an I2C TPM based on the device as described in devicetree.cb. This currently requires the devicetree to provide the HID, since we don't currently talk to the TPM in ramstage and I didn't want to add yet another init path for it here. This was tested on a reef board to ensure that the device is described properly in the SSDT. Change-Id: I43d7f6192f48e99a4074baa4e52f0a9ee554a250 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16397 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-09-06drivers/i2c/tpm: Add support for cr50 TPMDuncan Laurie
Add support for the cr50 TPM used in apollolake chromebooks. This requires custom handling due to chip limitations, which may be revisited but are needed to get things working today. - timeouts need to be longer - must use the older style write+wait+read read protocol - all 4 bytes of status register must be read at once - same limitation applies when reading burst count from status reg - burst count max is 63 bytes, and burst count behaves slightly differently than other I2C TPMs - TPM expects the host to drain the full burst count (63 bytes) from the FIFO on a read Luckily the existing driver provides most abstraction needed to make this work seamlessly. To maximize code re-use the support for cr50 is added directly instead of as a separate driver and the style is kept similar to the rest of the driver code. This was tested with the cr50 TPM on a reef board with vboot use of TPM for secdata storage and factory initialization. Change-Id: I9b0bc282e41e779da8bf9184be0a11649735a101 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16396 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-09-06drivers/i2c/tpm: Allow sleep durations to be set by the chipDuncan Laurie
Allow the sleep durations used by the driver to be set by the specific chip so they can be tuned appropriately. Since we need to read the chip id to know the values use very conservative defaults for the first command and then set it to the current values by default. Change-Id: Ic64159328b18a1471eb06fa8b52b589eec1e1ca2 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16395 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-06drivers/i2c/tpm: Make driver safe for use in x86 pre-ramDuncan Laurie
Use CAR accessors where needed for accessing static data. In some cases this required some minor restructuring to pass in a variable instead of use a global one. For the tpm_vendor_init the structure no longer has useful defaults, which nobody was depending on anyway. This now requires the caller to provide a non-zero address. Tested by enabling I2C TPM on reef and compiling successfully. Change-Id: I8e02fbcebf5fe10c4122632eda1c48b247478289 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16394 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-02i2c/w83795: Fix chip type messagePatrick Georgi
(val & 4) == 1 is always false. Since val & 4 is either zero or non-zero, just drop the second test (for "== 1"). Validated against the data sheet that this is really the right register, bit and value. Change-Id: I627df9a9b4fddfff486689e405f52a3b54135eef Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Found-by: Coverity Scan #1241864 Reviewed-on: https://review.coreboot.org/16009 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-07-31src/drivers: Capitalize CPU, RAM and ACPIElyes HAOUAS
Change-Id: I720469ea1df75544f5b1e0cab718502d8a9cf197 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/15983 Tested-by: build bot (Jenkins) Reviewed-by: Omar Pakker Reviewed-by: Martin Roth <martinroth@google.com>
2016-07-28i2c/ww_ring: Add ww_ring files to ramstageFurquan Shaikh
These files are required by storm and gale boards for enabling elog support in ramstage. BUG=chrome-os-partner:55639 Change-Id: I2bbfee2acf2bfe2f896a8619b1276dcea1b87f16 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15893 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-07-14drivers/i2c: Add new driver for RTC type PCF8523Werner Zeh
This driver enables the usage of an external RTC chip PCF8523 which is connected to the I2C bus. The I2C address of this device is fixed. One can change parameters in device tree so that the used setup can be adapted in device tree to match the configuration of the device on the mainboard. Change-Id: I2d7e161c9e12b720ec4925f1acfd1dd8ee6ee5f5 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/15641 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2016-07-08drivers/i2c/da7219: Add driver for generating device in SSDTDuncan Laurie
Add a device driver to generate the device and required properties into the SSDT. This driver uses the ACPI Device Property interface to generate the required parameters into the _DSD table format expected by the kernel. This was tested on the reef mainboard to ensure that the SSDT contained the equivalent parameters that are provided by the current DSDT object. Change-Id: Ia809e953932a7e127352a7ef193974d95e511565 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/15538 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-07-08acpi: Change device properties to work as a treeDuncan Laurie
There is a second ACPI _DSD document from the UEFI Forum that details how _DSD style tables can be nested, creating a tree of similarly formatted tables. This document is linked from acpi_device.h. In order to support this the device property interface needs to be more flexible and build up a tree of properties to write all entries at once instead of writing each entry as it is generated. In the end this is a more flexible solution that can support drivers that need child tables like the DA7219 codec, while only requiring minor changes to the existing drivers that use the device property interface. This was tested on reef (apollolake) and chell (skylake) boards to ensure that there was no change in the generated SSDT AML. Change-Id: Ia22e3a5fd3982ffa7c324bee1a8d190d49f853dd Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/15537 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-06-23kconfig: allow various tpm type and interface permutationsVadim Bendebury
Until now it was assumed that all TPM devices were of the same type (TCG 1.2 spec compliant) and x86 based boards had LPC connected TPMs and all other boards had I2C connected TPMs. With the advent of TPM2 specification there is a need to be able to configure different combinations of TPM types (TPM or TPM2) and interfaces (LPC, I2C and SPI). This patch allows to do it. Picking Chrome OS still assumes that the board has a TPM device, but adding MAINBOARD_HAS_TPM2 to the board's Kconfig will trigger including of TPM2 instead. MAINBOARD_HAS_LPC_TPM forces the interface to be set to LPC, adding SPI_TPM to the board config switches interface choice to SPI, and if neither of the two is defined, the interface is assumed to be I2C. BRANCH=none BUG=chrome-os-partner:50645 TEST=verified that none of the generated board configurations change as a result of this patch. With the rest of the stack in place it is possible to configure different combinations of TPM types and interfaces for ARM and x86 boards. Change-Id: I24f2e3ee63636566bf2a867c51ed80a622672f07 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 5a25c1070560cd2734519f87dfbf401c135088d1 Original-Change-Id: I659e9301a4a4fe065ca6537ef1fa824a08d36321 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/349850 Original-Reviewed-by: Martin Roth <martinroth@chromium.org> Reviewed-on: https://review.coreboot.org/15294 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-06-22drivers/i2c/generic: Fix compile failureDuncan Laurie
This variable name was changed in chip.h but not the consumer and it was submitted before it was caught. Change-Id: I7c492b588b2fd854a9eeac36029a46da324a7b1b Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/15109 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-06-02i2c: Add a generic i2c driverDuncan Laurie
This adds a generic I2C driver that can be described in the devicetree and used to generate ACPI objects in the SSDT based on the information provided in the config registers. The I2C bus can be configured and the device can provide an interrupt and wake capability to the OS. A configuration option allows for a GPIO to be provided that will be checked to determine if the device is preset on the board before including it in the generated SSDT. The driver is generic enough to be used for basic I2C devices that do not have special configuration needs such as touchpads, touchscreens, sensors, some audio codec/amplifiers, etc. Sample usage for a touchpad device: device pci 15.1 on chip drivers/i2c/generic register "hid" = ""ELAN0000"" register "desc" = "ELAN Touchpad" register "irq" = "IRQ_EDGE_LOW(GPP_B3_IRQ)" register "wake" = "GPE0_DW0_05" device i2c 15.0 on end end end Will result in the following code in the SSDT: Scope (\_SB.PCI0.I2C1) { Device (D015) { Name (_HID, "ELAN0000") Name (_UID, 0) Name (_S0W, 4) Name (_PRW, Package () { 5, 3 }) Method (_STA) { Return (0x0f) } Name (_CRS, ResourceTemplate () { I2cSerialBus (0x15, ControllerInitiated, 400000, AddressingMode7Bit, "\\_S.PCI0.I2C1", 0, ResourceConsumer) Interrupt (ResourceConsumer, Edge, ActiveLow) { 51 } }) } } Change-Id: Ib32055720835b70e91ede5e4028ecd91894d70d5 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/15016 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-06-01nau8825: Add driver for I2C codecDuncan Laurie
The Nuvoton NAU8825 audio codec is an I2C device that has a number of tunable parameters that can be provided to the kernel device driver for basic configuration and optimal operation. The configuration options are exposed to devicetree as registers and then presented as Device Properties via ACPI to the operation system. This sample configuration in devicetree: device pci 19.2 on chip drivers/i2c/nau8825 register "irq" = "IRQ_LEVEL_LOW(GPP_F10_IRQ)" register "jkdet_enable" = "1" register "sar_threshold_num" = "2" register "sar_threshold[0]" = "0x0c" register "sar_threshold[1]" = "0x1c" device i2c 1a on end end end Will generate the following code in the SSDT, trimmed for this commit message as there are more properties that can be configured: Scope (\_SB.PCI0.I2C4) { Name (_HID, "10508825") Name (_UID, Zero) Name (_DDN, "Nuvoton NAU8825 Codec") Method (_STA) { Return (0xF) } Name (_CRS, ResourceTemplate () { I2cSerialBus (0x1A, ControllerInitiated, 0x61A80, AddressingMode7Bit, "\_SB.PCI0.I2C4", 0, ResourceConsumer) Interrupt (ResourceConsumer, Level, ActiveLow) { 0x3A } }) Name (_DSD, Package () { ToUUID ("daffd814-6eba-4d8c-8a91-bc9bff4aa301"), Package () { Package () { "nuvoton,jkdet-enable", 1 }, Package () { "nuvoton,sar-threshold-num", 2 }, Package () { "nuvoton,sar-threshold", Package () { 0x0c, 0x1c } } } }) } Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: I480d72daf5ac3dded9b1cbb5fbc737b9dfde3834 Reviewed-on: https://review.coreboot.org/15015 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-04-19drivers/i2c: Switch to src/drivers/[X]/[Y]/ schemeStefan Reinauer
Reorder drivers to fit src/drivers/[X]/[Y]/ scheme to make them pluggable. Change-Id: Ia210e6832c18270043c0cb21b4881d9c802f3b2b Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/14058 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-10-24drivers/i2c/w83795: Add option to use auxiliary SMBUS controllerTimothy Pearson
Change-Id: I5a9b5eba992853b84b0cb6c3a1764edf42ac49b2 Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/12080 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Peter Stuge <peter@stuge.se> Tested-by: build bot (Jenkins)
2015-10-24drivers/i2c/w83795: Add full support for core functionsTimothy Pearson
Add full support for fan control, fan monitoring, and voltage monitoring. Fan speeds and functions are configurable via each mainboard's devicetree.cb file. NOTE: This patch effectively rewrites large portions of the original driver. You may need to re-verify correct operation on your hardware if you were using the old driver code. Change-Id: I3e246af0e398d65ee43ea708060885c67fd7d202 Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/11936 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2015-09-07Drop "See file CREDITS..." commentStefan Reinauer
coreboot has no CREDITS file. Change-Id: Iaa4686979ba1385b00ad1dbb6ea91e58f5014384 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/11514 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-06-30drivers/i2c/tpm: move tpm driver around a bit more.Patrick Georgi
The many different places to put vboot support in can be confusing. Instead of using libverstage (which isn't enough since those functions are sometimes called outside that, too), mention all stages where it can resides explicitly. Change-Id: Idddb9f5e2ef7bcc273f429d9f432bd37b4573567 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10728 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-30drivers/i2c/tpm: push tpm driver from verstage to libverstagePatrick Georgi
That way it's available wherever the verstage code ends up, bootblock, verstage or romstage. Change-Id: I0665e297f199acd60cff93e1b39812f183115d33 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10707 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-11lenovo: Hide SMBIOS configVladimir Serbinenko
It's derived from EEPROM on Lenovo machines and not from user config which is ignored. Change-Id: I54fb76a3160e47cd36d33d2937c4bfaddcd36a69 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/7055 Tested-by: build bot (Jenkins) Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
2015-06-08Remove empty lines at end of fileElyes HAOUAS
Used command line to remove empty lines at end of file: find . -type f -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \; Change-Id: I816ac9666b6dbb7c7e47843672f0d5cc499766a3 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: http://review.coreboot.org/10446 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-06-04devicetree: Discriminate device ops scan_bus()Kyösti Mälkki
Use of scan_static_bus() and tree traversals is somewhat convoluted. Start cleaning this up by assigning each path type with separate static scan_bus() function. For ME, SMBus and LPC paths a bus cannot expose bridges, as those would add to the number of encountered PCI buses. Change-Id: I8bb11450516faad4fa33b8f69bce5b9978ec75e5 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8534 Tested-by: build bot (Jenkins) Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
2015-05-21Remove address from GPLv2 headersPatrick Georgi
As per discussion with lawyers[tm], it's not a good idea to shorten the license header too much - not for legal reasons but because there are tools that look for them, and giving them a standard pattern simplifies things. However, we got confirmation that we don't have to update every file ever added to coreboot whenever the FSF gets a new lease, but can drop the address instead. util/kconfig is excluded because that's imported code that we may want to synchronize every now and then. $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} + $ find * -type f -a \! -name \*.patch \ -a \! -name \*_shipped \ -a \! -name LICENSE_GPL \ -a \! -name LGPL.txt \ -a \! -name COPYING \ -a \! -name DISCLAIMER \ -exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} + Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/9233 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-05-21lenovo: Remerge smbios_mainboard_bios_version.Vladimir Serbinenko
Change-Id: I8df5b7f6707957b925f7bb4dc06a717252c70868 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/10275 Reviewed-by: Nicolas Reinecke <nr@das-labor.org> Tested-by: build bot (Jenkins)
2015-04-30vboot: split class in library and stagePatrick Georgi
The build system includes a bunch of files into verstage that also exist in romstage - generic drivers etc. These create link time conflicts when trying to link both the verstage copy and romstage copy together in a combined configuration, so separate "stage" parts (that allow things to run) from "library" parts (that contain the vboot specifics). Change-Id: Ieed910fcd642693e5e89e55f3e6801887d94462f Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10041 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-30i2c/tpm: add final newlinePatrick Georgi
Change-Id: I0024c4d56f93eb6c9a54103e79c9d8a8b7d8d6fb Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10043 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-22i2c/ww_ring: add a pattern for normal bootVadim Bendebury
It became necessary to indicate the beginning of the normal boot process. This patch adds a new pattern, a slow (over 2 seconds) fade in into the 0, 87, 155 color. BRANCH=storm BUG=chrome-os-partner:39044 TEST=tested by the next patch. Change-Id: Idd977688e5aa2cc55fc295072c0766526ae95016 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 577c8bd6f8c69073cfdd7acd4a87e7ae603d48e6 Original-Change-Id: I9aff3f4558e733ff2e47206075533556e400f183 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/265535 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9922 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: update color definitionsVadim Bendebury
After testing on a final assembly the PD team adjusted the wipeout request and recovery request modes' colors. BRANCH=storm BUG=none TEST=verified new colors while booting an SP5 device in recovery mode Change-Id: I9bd2dac63b99140573533c2cda8eaa9213478ab1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 41c34a619dc0317af67907f18ee844c71a73d623 Original-Change-Id: Iab84710ebdeed35ddd4a8a163bbb6b8ac9cdb799 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/262602 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9890 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: change colors for different display modesVadim Bendebury
Modify colors as suggested by product review folks. This is not final, to make it easier to identify RGB locations in the hex dumps, express their values in decimal as opposed to hex. BRANCH=storm BUG=chrome-os-partner:36059 TEST=verified new all three color schemes while pressing the recovery button at boot for 20 seconds. Change-Id: I7461acd7004e3d10cba6665a9bfe25ec8aa6f3ba Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 7a075824a1954eb5d1b65ce887304924724a6d21 Original-Change-Id: I7f5968e361333572fd1f84aa11b7150194ad902a Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/261690 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9880 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: use shorter blinking programVadim Bendebury
The originally loaded blinking program was written to allow gradual change in LED brightness, which required controlling each LED with its own engine. In fact there is no need in gradual brightness changes when the firmware is controlling the ring. This allows to control all LEDs by one engine, making the code simpler and more robust (no need to synchronize the three engines any more). BRANCH=storm BUG=chrome-os-partner:36059 TEST=verified that recovery boot WW ring patterns work as expected. Change-Id: I89d231fb61693f4e834d8d9323ae5a7ddd149525 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 19809cf8120df8865da9b5b9e7b8e932334bf4b5 Original-Change-Id: I41038fd976dc9600f223dc0e9c9602331baf68f9 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/261026 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9873 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: stop running programs before loading the new onesVadim Bendebury
The two controllers on the ring are programmed independently, and if the second controller is running the old pattern while the first one was loaded with a new pattern, there is a window of when the two unrelated patterns might interact. To avoid this shut down execution on both controllers before starting downloading the new pattern code. BRANCH=storm BUG=chrome-os-partner:36059 TEST=verified recovery/wipeout LED ring behavior did not change. Change-Id: I163f2983d414fe839208054ae3e9025663a46aeb Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 3502ca6b119c033855b45388e7b782d35cfdd82b Original-Change-Id: I0f71f94a7e82f6c0e7f98d3aad1f93ece207248f Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/261200 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9872 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: define display pattern programsVadim Bendebury
Add compiled lp55231 code snippets to allow display certain patterns when booting the device with the recovery button pressed. As soon as the press is detected, the low intensify solid white pattern is enabled. Holding recovery button long enough causes the device transition between the wipeout requested and recovery requested states, with the appropriate changes in the displayed pattern. The patch also includes the source code for the LED controller as well as instructions on how to compile and modify the code to result in different colors, intensities, blink periods and duty cycles. BRANCH=storm BUG=chrome-os-partner:36059 TEST=reboot an SP5 device with the LED ring attached, keep the recovery button pressed, observe the changes in the LED display pattern while the device progresses through the boot sequence. Change-Id: Ic7d45fc7c313b6d21119d4ae6adaeb4f46f7d181 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 0fd6a5c0067d705197816629f41640a931d2f7cd Original-Change-Id: Ib5cc5188c2eeedbba128101bf4092a0b9a74e155 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/260670 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9870 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: decouple LED display from vbootVadim Bendebury
The patterns displayed on the LED ring while under the coreboot control are not driven by the vboot, but by the board code instead, The four distinct states of the LED display are: - all off - recovery button push detected, waiting for it to be released - wipeout request pending - recovery button was pushed long enough to trigger this request - recovery request pending - recovery button was pushed long enough to trigger this request. BRANCH=storm BUG=chrome-os-partner:36059 TEST=no functional changes Change-Id: I38d9a3028013b902a7a67ccd4eb1c5d533bf071c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: bdfff0e646283da6a2faaacf33e0179d2fea221c Original-Change-Id: Ie279151b6060a2888268a2e9a0d4dc22ecaba460 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/260649 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9868 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c/ww_ring: various driver fixes and improvementsVadim Bendebury
When in development environment, some SP5 devices might not have the LED ring attached. They are still fully functional, but when booting up are generating massive amount of i2c error messages. This patch prevents accesses to non-existing lp55321 devices. When loading the program into the device the vendor recommends 1 ms delay when accessing the program control register. This patch separates these accesses into a function and add a delay after every access. Another fix - advance the program address when loading multipage programs. Set the global variable register 3c, not used by coreboot programs, to a fixed value. This will allow depthcharge to avoid re-initializing the controller when not necessary. BRANCH=storm BUG=chrome-os-partner:36059 TEST=booted firmware on an SP5 with no LED ring attached, no excessive error messages are generated, saw the default pattern displayed when the recovery button is pressed during reset. Change-Id: I6a2a27968684c40dae15317540a16405b1419e30 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 5e0b4c84aca27460db594da1faf627ddee56f399 Original-Change-Id: I10f1f53cefb866d11ecf76ea48f74131d8b0ce77 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/260648 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9867 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-22i2c: add support for ww_ringVadim Bendebury
This is a copy of the depthcharge ww ring driver implementation ported into coreboot. The main differences are: - direct use of the i2c driver instead of using the callback driver description - no dynamic memory allocation for the controller structures BRANCH=storm BUG=chrome-os-partner:36059 TEST=with the rest of the patches applied the LED ring gets initialized to the default pattern at coreboot start. Change-Id: I6902c8b76fc173ad2ec28b8cc94695e892df338a Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: eda24b78f8aff311dd6296d458bdfecf26c3d65a Original-Change-Id: I5660dc3f255aab8fbe3a87041c72916a645c193b Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/257730 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9858 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-21Unify byte order macros and clrsetbitsJulius Werner
This patch removes quite a bit of code duplication between cpu_to_le32() and clrsetbits_le32() style macros on the different architectures. This also syncs those macros back up to the new write32(a, v) style IO accessor macros that are now used on ARM and ARM64. CQ-DEPEND=CL:254862 BRANCH=none BUG=chromium:444723 TEST=Compiled Cosmos, Daisy, Blaze, Falco, Pinky, Pit, Rambi, Ryu, Storm and Urara. Booted on Jerry. Tried to compare binary images... unfortunately something about the new macro notation makes the compiler evaluate it more efficiently (not recalculating the address between the read and the write), so this was of limited value. Change-Id: If8ab62912c952d68a67a0f71e82b038732cd1317 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: fd43bf446581bfb84bec4f2ebb56b5de95971c3b Original-Change-Id: I7d301b5bb5ac0db7f5ff39e3adc2b28a1f402a72 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/254866 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9838 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-13tpm: wait for valid bit to be set in TPM access register before using tpmSourabh Banerjee
As per the TCG PC Client TPM Interface Specification v1.2, bit 7 of the access register (tmpRegValiSts bit) stays "0" until the TPM has complete through self test and initialization. This bit is set "1" to indicate that the other bits in the register are valid. BRANCH=chromeos-2013.04 BUG=chrome-os-partner:35328 TEST=Booted up storm p0.2 and whirwind sp3. Verified TPM chip is detected and reported in coreboot logs. Change-Id: I1049139fc155bfd2e1f29e3b8a7b9d2da6360857 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 006fc93c6308d6f3fa220f00708708aa62cc676c Original-Change-Id: I9df3388ee1ef6e4a9d200d99aea1838963747ecf Original-Signed-off-by: Sourabh Banerjee <sbanerje@codeaurora.org> Original-Reviewed-on: https://chromium-review.googlesource.com/242222 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Original-Commit-Queue: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/9567 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-10TPM: Reduce buffer size to fix stack overflowJulius Werner
The TPM driver by default allocates a 4K transfer buffer on the stack, which leads to lots of fun on boards with 2K or 3K stack sizes. On RK3288 this ends up writing over random memory sections which dependent on the memlayout of the day might contain timestamp data (no big deal) or page tables (-> bad time). This patch fixes the problem by reducing the buffer size to slightly above 1K, which still seems to work as far as I can tell. There was already some really odd code that #undef'ed this value and redefined it with the lower number in one .c file (unfortunately not the one with the buffer declaration), with no explanation whatsoever... I'm removing that and just assume the smaller value will be fine for everything. BRANCH=veyron BUG=None TEST=Booted Pinky and Falco. Change-Id: I440a5662b41cbd8b7becab3113262e1140b7f763 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 3d3288041b6629b7623b9d58816e782e72836b81 Original-Change-Id: Idf80f44cbfb9617c56b64a5c88ebedf7fcb4ec71 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/236976 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/9481 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-10tpm: allow 0 as valid i2c bus numberDaisuke Nojiri
tpm driver uses bus=0 as indication of uninitialized tpm device. this change allows 0 as a valid i2c bus number. BUG=None BRANCH=ToT TEST=Built cosmos. Change-Id: Ie8d285abff11643cc3efc0fa30e4afcc3ca1c0d5 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 493077b68cf46b08f0d1ddfe57bf6064d714d537 Original-Change-Id: Iac55e88db4ef757a292270e7201d8fdd37a90b50 Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/226294 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9405 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-23vboot2: read secdata and nvdataDaisuke Nojiri
This code ports antirollback module and tpm library from platform/vboot_reference. names are modified to conform to coreboot's style. The rollback_index module is split in a bottom half and top half. The top half contains generic code which hides the underlying storage implementation. The bottom half implements the storage abstraction. With this change, the bottom half is moved to coreboot, while the top half stays in vboot_reference. TEST=Built with USE=+/-vboot2 for Blaze. Built Samus, Link. BUG=none Branch=none Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Change-Id: I77e3ae1a029e09d3cdefe8fd297a3b432bbb9e9e Original-Reviewed-on: https://chromium-review.googlesource.com/206065 Original-Reviewed-by: Randall Spangler <rspangler@chromium.org> Original-Reviewed-by: Luigi Semenzato <semenzato@chromium.org> (cherry picked from commit 6b66140ac979a991237bf1fe25e0a55244a406d0) Change-Id: Ia3b8f27d6b1c2055e898ce716c4a93782792599c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Marc Jones <marc.jones@se-eng.com> Reviewed-on: http://review.coreboot.org/8615 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-02-26drivers/i2c/w83793: Use devicetree.cb to set additional valuesTimothy Pearson
This allows devicetree.cb to set: Minimum PWM values Temperature sensor source Voltage sensor high/low limits Fan pin routing Default PWM values Manual PWM values per-fan Change-Id: I3a321406a26ae01a121289d24b41c9f988dd6f30 Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/8502 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-02-23drivers/i2c/w83793: Remove incorrect zeroing of PWM valuesTimothy Pearson
Fan 2 and Fan 3 were inexplicably set to zero after device setup. Change-Id: I37945745dbfaf33eb28808d85cdf75dca401e44b Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/8520 Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Tested-by: build bot (Jenkins)
2015-01-16coreboot tpm: Fix printk format specifiersFurquan Shaikh
BUG=None BRANCH=None TEST=Compiles successfully Original-Change-Id: I828776724dce287d9a7eb732f2c9ecccf8d68229 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/209336 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> (cherry picked from commit b50c9441ddaeabc5aa039f2141853ed7ba7a9d5b) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I6e81312609448c531345e592ee371ea53dc0916c Reviewed-on: http://review.coreboot.org/8221 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins)
2015-01-15drivers/i2c/w83795: Fix tautology from wrong return typeEdward O'Callaghan
The correct type-signature of 'do_smbus_write_byte' is: int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val) and so storing the return type in a 'u32' is inappropriate, leading to a tautological compare of 'ret < 0' and 'err < 0'. Change-Id: I65486df7156c70af84fa00c336142d9a45998620 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/8209 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-12-23TPM: Fix i2c driver dependencyKyösti Mälkki
Change-Id: I59545ef734dff41ba55dcddd541c54b17b0855bb Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/7914 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-16i2c: Replace the i2c API.Gabe Black
The new API is in use in depthcharge and is based around the "i2c_transfer" function instead of i2c_read and i2c_write. The new function takes an array of i2c_seg structures which represent each portion of the transfer after a start bit and before the stop bit. If there's more than one segment, they're seperated by repeated starts. Some wrapper functions have also been added which make certain common operations easy. These include reading or writing a byte from a register or reading or writing a blob of raw data. The i2c device drivers generally use these wrappers but can call the i2c_transfer function directly if the need something different. The tegra i2c driver was very similar to the one in depthcharge and was simple to convert. The Exynos 5250 and 5420 drivers were ported from depthcharge and replace the ones in coreboot. The Exynos 5420 driver was ported from the high speed portion of the one in coreboot and was straightforward to port back. The low speed portion and the Exynos 5250 drivers had been transplanted from U-Boot and were replaced with the depthcharge implementation. BUG=None TEST=Built and booted on nyan with and without EFS. Built and booted on, pit and daisy. BRANCH=None Original-Change-Id: I1e98c3fa2560be25444ab3d0394bb214b9d56e93 Original-Signed-off-by: Gabe Black <gabeblack@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/193561 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com> Original-Tested-by: Jimmy Zhang <jimmzhang@nvidia.com> Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org> Original-Commit-Queue: Gabe Black <gabeblack@chromium.org> Original-Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 00c423fb2c06c69d580ee3ec0a3892ebf164a5fe) This cherry-pick required additional changes to the following: src/cpu/allwinner/a10/twi.c src/drivers/xpowers/axp209/axp209.c Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I691959c66308eeeec219b1bec463b8b365a246d7 Reviewed-on: http://review.coreboot.org/7751 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2014-11-28drivers/i2c/at24rf08c/lenovo_serials.c: Use NULL over '0'Edward O'Callaghan
Change-Id: I7d8922d1812814ea2ebd72aaf5b5e28dc592bfb3 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/7590 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-11-28drivers/i2c/at24rf08c/lenovo_serials.c: Upper-case'ifyEdward O'Callaghan
Thereby making consistent with other i2c drivers Change-Id: I5ddc9d98fbbc1db68a933e3b9a6b92f309b72c41 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/7589 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2014-11-01drivers: Use DEVICE_NOOP macro over dummy symbolEdward O'Callaghan
Change-Id: I931bd9c89bce6ac8f8e9e482a7876e2004abfb38 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/7284 Tested-by: build bot (Jenkins) Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>