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path: root/src/soc/intel/skylake/flash_controller.c
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2017-05-02soc/intel/skylake: Clean up code by using common FAST_SPI moduleBarnali Sarkar
This patch currently contains the following - 1. Use SOC_INTEL_COMMON_BLOCK_FAST_SPI kconfig for common FAST_SPI code. 2. Perform FAST_SPI programming by calling APIs from common FAST_SPI library. 3. Use common FAST_SPI header file. Change-Id: I4fc90504d322db70ed4ea644b1593cc0605b5fe8 Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com> Reviewed-on: https://review.coreboot.org/19055 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-03-17soc/intel/skylake: Add int to unsignedLee Leahy
Fix the following warning detected by checkpatch.pl: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' TEST=Build for glados Change-Id: Idc2ad265e8ed8cd7fd6d228cfbe4cbbcb9d3ebfc Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18866 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-12-23soc/intel/skylake: Use the new SPI driver interfaceFurquan Shaikh
1. Define controller for fast SPI. 2. Separate out functions that are specific to SPI and flash controller in different files. BUG=chrome-os-partner:59832 BRANCh=None TEST=Compiles successfully for chell and eve. Change-Id: I2fe0ef937297297339d4ea19dc37d3061caaa80c Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17933 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-12-07soc/intel/skylake: Remove unwanted spi_release callFurquan Shaikh
Skylake uses a special SPI Flash controller and does not require spi_claim_bus and spi_release_bus functionality. This was a leftover call from earlier cleanup, so remove it. Change-Id: Iea260813cf72b94b7e7c661dbe494a74351dc357 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17729 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-12-06spi_flash: Make a deep copy of spi_slave structureFurquan Shaikh
Commit 36b81af (spi: Pass pointer to spi_slave structure in spi_setup_slave) changes the way spi_setup_slave handles the spi_slave structure. Instead of expecting spi controller drivers to maintain spi_slave structure in CAR_GLOBAL/data section, caller is expected to manage the spi_slave structure. This requires that spi_flash drivers maintain spi_slave structure and flash probe function needs to make a copy of the passed in spi_slave structure. This change fixes the regression on Lenovo X230 and other mainboards. Change-Id: I0ad971eecaf3bfe301e9f95badc043193cc27cab Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17728 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Iru Cai <mytbk920423@gmail.com>
2016-12-05spi: Define and use spi_ctrlr structureFurquan Shaikh
1. Define a new structure spi_ctrlr that allows platforms to define callbacks for spi operations (claim bus, release bus, transfer). 2. Add a new member (pointer to spi_ctrlr structure) in spi_slave structure which will be initialized by call to spi_setup_slave. 3. Define spi_claim_bus, spi_release_bus and spi_xfer in spi-generic.c which will make appropriate calls to ctrlr functions. BUG=chrome-os-partner:59832 BRANCH=None TEST=Compiles successfully Change-Id: Icb2326e3aab1e8f4bef53f553f82b3836358c55e Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17684 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-12-05spi: Pass pointer to spi_slave structure in spi_setup_slaveFurquan Shaikh
For spi_setup_slave, instead of making the platform driver return a pointer to spi_slave structure, pass in a structure pointer that can be filled in by the driver as required. This removes the need for platform drivers to maintain a slave structure in data/CAR section. BUG=chrome-os-partner:59832 BRANCH=None TEST=Compiles successfully Change-Id: Ia15a4f88ef4dcfdf616bb1c22261e7cb642a7573 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17683 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-12-05spi: Fix parameter types for spi functionsFurquan Shaikh
1. Use size_t instead of unsigned int for bytes_out and bytes_in. 2. Use const attribute for spi_slave structure passed into xfer, claim bus and release bus functions. BUG=chrome-os-partner:59832 BRANCH=None TEST=Compiles successfully Change-Id: Ie70b3520b51c42d750f907892545510c6058f85a Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17682 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-22soc/intel: Use correct terminology for SPI flash operationsFurquan Shaikh
FPR is an attribute of the SPI flash component and not of the SPI bus itself. Rename functions, file names and Kconfig option to make sure this is conveyed correctly. BUG=None BRANCH=None TEST=Compiles successfully. Change-Id: I9f06f1a8ee28b8c56db64ddd6a19dd9179c54f50 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17560 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-22spi: Get rid of flash_programmer_probe in spi_slave structureFurquan Shaikh
flash_programmer_probe is a property of the spi flash driver and does not belong in the spi_slave structure. Thus, make spi_flash_programmer_probe a callback from the spi_flash_probe function. Logic still remains the same as before (order matters): 1. Try spi_flash_programmer_probe without force option 2. Try generic flash probing 3. Try spi_flash_programmer_probe with force option If none of the above steps work, fail probing. Flash controller is expected to honor force option to decide whether to perform specialized probing or to defer to generic probing. BUG=None BRANCH=None TEST=Compiles successfully Change-Id: I4163593eea034fa044ec2216e56d0ea3fbc86c7d Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17465 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-22spi: Clean up SPI flash driver interfaceFurquan Shaikh
RW flag was added to spi_slave structure to get around a requirement on some AMD flash controllers that need to group together all spi volatile operations (write/erase). This rw flag is not a property or attribute of the SPI slave or controller. Thus, instead of saving it in spi_slave structure, clean up the SPI flash driver interface. This allows chipsets/mainboards (that require volatile operations to be grouped) to indicate beginning and end of such grouped operations. New user APIs are added to allow users to perform probe, read, write, erase, volatile group begin and end operations. Callbacks defined in spi_flash structure are expected to be used only by the SPI flash driver. Any chipset that requires grouping of volatile operations can select the newly added Kconfig option SPI_FLASH_HAS_VOLATILE_GROUP and define callbacks for chipset_volatile_group_{begin,end}. spi_claim_bus/spi_release_bus calls have been removed from the SPI flash chip drivers which end up calling do_spi_flash_cmd since it already has required calls for claiming and releasing SPI bus before performing a read/write operation. BUG=None BRANCH=None TEST=Compiles successfully. Change-Id: Idfc052e82ec15b6c9fa874cee7a61bd06e923fbf Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17462 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-10-26soc/intel/skylake: Use intel common support to write-protect SPI flashFurquan Shaikh
BUG=chrome-os-partner:58896 Change-Id: I281c799a1798f3353d78edd8a6cd16bbe762bc2c Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17116 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-19soc/intel/skylake: make SPI support early stagesAaron Durbin
Using malloc() in SPI code is unnecessary as there's only one SPI device that the SoC support code handles: boot device. Therefore, use CAR to for the storage to work around the current limiations of the SPI API which expects one to return pointers to objects that are writable. Additionally, include the SPI support code as well as its dependencies in all the stages. BUG=chrome-os-partner:56151 Change-Id: I0192ab59f3555deaf6a6878cc31c059c5c2b7d3f Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16196 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Lee Leahy <leroy.p.leahy@intel.com>
2016-06-21intel/skylake: Run spi_init as early as possible in ramstageFurquan Shaikh
spi_init should be run early enough in ramstage so that any init calls (e.g. mainboard_ec_init) that write on flash have right permissions set. Change-Id: I9cd3dc723387757951acd40449d4a41986836d2a Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15235 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-06-09skylake: Add function to set PRR for protecting flashDuncan Laurie
Add a function similar to broadwell to set the PRR for a region of flash and protect it from writes. This is used to secure the MRC cache region if the SPI is write protected. BUG=chrome-os-partner:54003 BRANCH=glados TEST=boot on chell, verify PRR register is set and that the MRC cache region cannot be written if the SPI is write protected. Change-Id: I925ec9ce186f7adac327bca9c96255325b7f54ec Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Commit-Id: abb6f645f5ceef3f52bb7afd2632212ea916ff8d Original-Change-Id: I2f90556a217b35b7c93645e41a1fcfe8070c53da Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/349274 Original-Reviewed-by: Shawn N <shawnn@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Tested-by: Shawn N <shawnn@chromium.org> Reviewed-on: https://review.coreboot.org/15102 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-01-22intel/skylake: Fix klockwork violationNaresh G Solanki
File: src/soc/intel/skylake/flash_controller.c Line: 192 Variable 'ret' might be used uninitialized in this function. Hence initializing it with initial value of zero. BRANCH=None BUG=chrome-os-partner:48542 TEST=Built & booted Kunimitsu board. Change-Id: I4e63612890057a2180f38b2e74419d98b02b70c1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: b93ca876912d2336dae25b9b84e56ffb171b215b Original-Change-Id: Ied8c909f5294d56daddb2806111d477246f98957 Original-Reviewed-on: https://chromium-review.googlesource.com/322082 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/13072 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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)
2015-11-20intel/skylake: Fix flash_controller.c compilationStefan Reinauer
Since this code is not currently being built by coreboot, it failed compilation. Change-Id: Ib8a0e1ebc76b7dca3dd785b09398b73abad46366 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/12466 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.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>
2015-09-08skylake: refactor flash_controller codeAaron Durbin
There's no need to add any typedefs nor guard code with ENV_ROMSTAGE. The linker will garbage collect unused functions. Additionally there were a few errors in the code including the operation mask wasn't wide enough to clear out old operations as well as component size decoding was incorrect. The big difference in the code flow is that the operation setup is now in one place. The stopwatch API is also used in order to not open code time calculations. BUG=chrome-os-partner:42115 BUG=chrome-os-partner:43522 BRANCH=None TEST=Built and booted. Suspended and resumed. event log is populated for all. Change-Id: I0ddd42f0744cf8f88da832d7d715663238209a71 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 9893fe309104c05edfb158afda6bb029801c0489 Original-Change-Id: I6468f5b9b4a73885b69ebd916861dd2e8e3746b6 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/295980 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/11543 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-09-08skylake: move flash_controller.h to the proper placeAaron Durbin
I missed this in code review. This should be under the soc directory. BUG=chrome-os-partner:43522 BRANCH=None TEST=Built glados. Change-Id: Ia018c20f97f267b8f7592b2459d10eafe5ec7159 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 9c081ed6de46605b7d0a72962ac2a041c470b12c Original-Change-Id: Ic3938fe5d71bd24a395304cfabe40eff48bc4a40 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/295239 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/11542 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-09-08skylake: fix eventlog on resume pathAaron Durbin
The spi_init() routine needs to be called in all boot paths to allow writes to the SPI part. The reason is that the write enable is done in spi_init(). Moreover, this is also required for a writing a firmware update after a resume. BUG=chrome-os-partner:42115 BRANCH=None TEST=Built and booted glados. Suspended and resumed. Eventlogs show up in resume path. Change-Id: I187baa940bb45ef90ab82e67c02f13d8855d364e Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 8813ab227395cfcba46ad4109730a1eb5897e538 Original-Change-Id: Ida726fc29e6d49cd9af02c4e57125e09f2599c36 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/295238 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/11541 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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>
2015-08-29intel/skylake: Implemented generic SPI driver for ROM/RAMSTAGE access.Subrata
Created generic library to implement SPI read, write, erase and read status functionality for both ROMSTAGE and RAMSTAGE access. BRANCH=NONE BUG=chrome-os-partner:42115 TEST=Built for sklrvp and kunimitsu and verify SPI read, write, erase success from ELOG. Change-Id: Idf4ffdb550e2a3b87059554e8825a1182b448a8a Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 74907352931db78802298fe7280a39913a37f0c2 Original-Change-Id: Ib08da1b8825e2e88641acbac3863b926ec48afd9 Original-Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/294444 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Tested-by: Subrata Banik <subrata.banik@intel.com> Original-Commit-Queue: Subrata Banik <subrata.banik@intel.com> Reviewed-on: http://review.coreboot.org/11422 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.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>
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