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path: root/src/drivers/spi
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2014-12-17spi_flash: Differentiate between atomic/manual sequencingDavid Hendricks
This adds a wrapper function and a Kconfig variable to differentiate between SPI controllers which use atomic cycle sequencing versus those where the transaction sequence is controlled manually. Currently this boils down to x86 vs. non-x86. Yes, it's hideous. The current API only worked because, for better or worse, x86 platforms have been homogeneous in this regard since they started using SPI as an alternative to FWH for boot flash. Now that we have non-x86 platforms which use general purpose SPI controllers, we should overhaul the entire SPI infrastructure to be more adaptable. BUG=none BRANCH=none TEST=tested on nyan and link Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: If8ccc9400a9d04772a195941a42bc82d5ecc1958 Original-Reviewed-on: https://chromium-review.googlesource.com/195283 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Commit-Queue: David Hendricks <dhendrix@chromium.org> Original-Tested-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 4170c59d06206667755402712083452da9fcd941) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I54e2d3d9f9a0153a56f7a51b80f6ee6d997ad358 Reviewed-on: http://review.coreboot.org/7828 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-12-16spi: Add support for Winbond W25Q32DWDavid Hendricks
Similar to the W25Q64DW, the W25Q32DW has basically the same attributes as the earlier W25Q32 parts but with a different value in the MSB of the ID. BUG=none BRANCH=none TEST=tested on nyan, now SPI flash commands actually work. Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: I697768a443c98515d893f9cf8f8b4258ae0f159d Original-Reviewed-on: https://chromium-review.googlesource.com/191205 Original-Tested-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: Gabe Black <gabeblack@chromium.org> Original-Commit-Queue: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 35f03f4f4f21c470d172ce7cce257517b959346d) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I73606737835e4f8ea00d2c331ca37957e4abd953 Reviewed-on: http://review.coreboot.org/7755 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2014-12-16spi: Make idcode debug print more usefulDavid Hendricks
The old print simply said "Got idcode". This makes it actually display what it got. BUG=none BRANCH=none TEST=tested on nyan Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: I8f1c8fde6e4ac00b12e74f925b7bcff83d1f69f3 Original-Reviewed-on: https://chromium-review.googlesource.com/191204 Original-Tested-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: Gabe Black <gabeblack@chromium.org> Original-Commit-Queue: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 5f13789be77d038d3c1602037afe29a0351f72ee) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I65d0d51c17b3bda62351532aac1756b630433ea3 Reviewed-on: http://review.coreboot.org/7754 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-12-09vboot: allow for non-memory-mapped VBOOT regionsAaron Durbin
Depending on the platform the underlying regions vboot requires may not be accessible through a memory-mapped interface. Allow for non-memory-mapped regions by providing a region request abstraction. There is then only a few touch points in the code to provide compile-time decision making no how to obtain a region. For the vblocks a temporary area is allocated from cbmem. They are then read from the SPI into the temporarily buffer. BUG=chrome-os-partner:27094 BRANCH=None TEST=Built and booted a rambi with vboot verification. Original-Change-Id: I828a7c36387a8eb573c5a0dd020fe9abad03d902 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/190924 Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org> (cherry picked from commit aee0280bbfe110eae88aa297b433c1038c6fe8a3) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Ia020d1eebad753da950342656cd11b84e9a85376 Reviewed-on: http://review.coreboot.org/7709 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2014-12-09spi/macronix: Add support for MX25L3239EDave Frodin
Also update comment for the MX25L3236D part. Change-Id: Ifaeeb71e7672a8db55bbb66e6ce7316e2893478d Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/7631 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-12-03SPI: Add vendor AtmelKyösti Mälkki
Change-Id: I60e578003b857f5dcabb2e9bc75aa46acddb62b8 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/7433 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Tested-by: build bot (Jenkins)
2014-12-03SPI: Add Macronix part MX25U12835FKyösti Mälkki
Change-Id: I82482419afdf536a19b99c79131fa5844aaaec07 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/7432 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins)
2014-10-27drivers/spi: add Macronix MX25U6435F and MX25L6495F supportIdwer Vollering
Contributed by MXIC: http://www.coreboot.org/pipermail/coreboot/2014-October/078835.html Change-Id: I07f872a5cbb2b0ea63794edb8fbca40d7856ce10 Author: Alex Lu <alexlu6@mxic.com.tw> Signed-off-by: Idwer Vollering <vidwer@gmail.com> Reviewed-on: http://review.coreboot.org/7194 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Tested-by: build bot (Jenkins)
2014-10-17drivers/spi: Add support for Micron N25Q128Scott Radcliffe
Support added for Micron N25Q128 SPI flash, which has the same manufacturer id as ST Micro. Jedec ID = 0x20 0xBB 0x18. Since existing stmicro.c only compares the last device id byte, this flash is mistakenly identified as M25P128, which has ID = 0x20 0x20 0x18. To handle this situation and avoid breaking code for existing devices, a two byte .id member is added. New devices should be added to the beginning of the flash table array with .idcode = STM_ID_USE_ALT_ID and .id = the two byte jedec device id. A 4KB subsector erase capability is added and used for this new device. It requires using a different SPI op-code supported by adding .op_erase member. Previous devices defined in stmicro.c are assigned their original op-code for 64KB sector erase. N25Q128 is now working on a custom designed Bayley Bay based board. Tested by verifying the MRC fastboot cache is successfully (re)written. Note that previous devices were not retested. Change-Id: Ic63d86958bf8d301898a157b435f549a0dd9893c Signed-off-by: Scott Radcliffe <sradcliffe@microind.com> Reviewed-on: http://review.coreboot.org/7077 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins)
2014-09-29spi: Add support for Winbond W25Q128FWMohan D'Costa
The W25Q128FW spi part is programatically equivalent to the other W25Q128 parts except it operates at 1.8V. Just add a new entry with the appropriate ID. Tested on a modified MinnowMax Board. Change-Id: Id6a426418a7f785a9d959b02a9e3d2ffc421804f Signed-off-by: Mohan D'Costa <mohan@ndr.co.jp> Reviewed-on: http://review.coreboot.org/6971 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <gaumless@gmail.com> Tested-by: build bot (Jenkins)
2014-09-17spi: add Kconfig variable for dual-output read enableDavid Hendricks
Add a Kconfig variable so that driver code knows whether or not to use dual-output reads. Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: I31d23bfedd91521d719378ec573e33b381ebd2c5 Reviewed-on: https://chromium-review.googlesource.com/177834 Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit de6869a3350041c6823427787971efc9fcf469b8) tegra124: implement x2 mode for SPI transfers on CBFS media This implements x2 mode when reading CBFS media over SPI. In theory this effectively doubles our throughput, though the initial results were almost negligibly better. Using a logic analyzer we see a pattern of 12 clocks, ~70ns delay, 4 clocks, ~310ns delay. So if we want to see further gains here then we'll probably need to tune AHB arbitration and utilization to eliminate bubbles/stalls when copying from APB DMA. Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: I33d6ae30923fc42b4dc7103d029085985472cf3e Reviewed-on: https://chromium-review.googlesource.com/177835 Reviewed-by: Tom Warren <twarren@nvidia.com> Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 29289223362b12e84da5cbb130f285c6b9d314cc) nyan: turn on dual-output reads for SPI flash Nyan's SPI chip is capable of dual-output reads, so let's use it. Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: I51a97c05aa25442d8ddcc4e3e35a2507d91a64df Reviewed-on: https://chromium-review.googlesource.com/177836 Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 62de0889a9cfc5686800645d05e21e272e4beb5c) Squashed three commits to enable dual output spi reads for nyan. Also fixed the spi_xfer interface that has been updated to use bytes instead of bits. Change-Id: I750a177576175b297f61e1b10eac6db15e75aa6e Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6909 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2014-07-17drivers/spi: Sanitize headers from preprocessor abuseEdward O'Callaghan
Continuing on from the rational given in: a173a62 Remove guarding #includes by CONFIG_FOO combinations Change-Id: I35c636ee7c0b106323b3e4b90629f7262750f8bd Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/6114 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-07-14SPI: Split writes using spi_crop_chunk()Kyösti Mälkki
SPI controllers in Intel and AMD bridges have a slightly different restriction on how long transactions they can handle. Change-Id: I3d149d4b7e7e9633482a153d5e380a86c553d871 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6163 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-07-14SPI flash: Fix alignment checks in Page Program commandsKyösti Mälkki
There are two separate restrictions to take into account: Page Program command must not cross address boundaries defined by the flash part's page size. Total number of bytes for any command sent to flash part is restricted by the SPI controller capabilities. Consider CONTROLLER_PAGE_LIMIT=64, page_size=256, offset=62, len=4. This write would be split at offset 64 for no reason. Consider CONTROLLER_PAGE_LIMIT=40, page_size=256, offset=254, len=4. This write would not be split at page boundary as required. We do not really hit the second case. Nevertheless, CONTROLLER_PAGE_LIMIT is a misnomer for the maximum payload length supported by the SPI controller and is removed in a followup. Change-Id: I727f2e7de86a91b6a509460ff1f374acd006a0bc Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6162 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-07-05spi: Change spi_xfer to work in units of bytes instead of bits.Gabe Black
Whenever spi_xfer is called and whenver it's implemented, the natural unit for the amount of data being transfered is bytes. The API expected things to be expressed in bits, however, which led to a lot of multiplying and dividing by eight, and checkes to make sure things were multiples of eight. All of that can now be removed. BUG=None TEST=Built and booted on link, falco, peach_pit and nyan and looked for SPI errors in the firmware log. Built for rambi. BRANCH=None Change-Id: I02365bdb6960a35def7be7a0cd1aa0a2cc09392f Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/192049 Reviewed-by: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> [km: cherry-pick from chromium] Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6175 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-07-05spi: Remove unused parameters from spi_flash_probe and setup_spi_slave.Gabe Black
The spi_flash_probe and and spi_setup_slave functions each took a max_hz parameter and a spi_mode parameter which were never used. BUG=None TEST=Built for link, falco, rambi, nyan. BRANCH=None Change-Id: I3a2e0a9ab530bcc0f722f81f00e8c7bd1f6d2a22 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/192046 Reviewed-by: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> [km: cherry-pick from chromium] Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6174 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-07-05spi flash: Organise options listKyösti Mälkki
Change-Id: I21e4e2384d9b8bbd34f652e99af11dee993fb41c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6173 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-07-05drivers/spi: Reduce the per loop delay of spi_flash_cmd_poll_bit()Dave Frodin
At the end of some SPI operations the SPI device needs to be polled to determine if it is done with the operation. For SPI data writes the predicted time of that operation could be less than 10us. The current per loop delay of 500us is adding too much delay. This change replaces the delay(x) in the do-while loop with a timer so that the actual timeout value won't be lengthened by the delay of reading the SPI device. Change-Id: Ia8b00879135f926c402bbd9d08953c77a2dcc84e Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/5973 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-05-18drivers/spi/sst.c: Remove unused func to_sst_spi_flash()Edward O'Callaghan
Trips up clang builds with a warn treated as error. Change-Id: I9c0e2930ba8a60c7ad6063e9826b1b8638185505 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/5779 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-04-29SPI: Use common dependency in KconfigKyösti Mälkki
Change-Id: I11118a4fe1e05017349feae004f98a17bb02386b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5605 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Idwer Vollering <vidwer@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-03-12drivers/spi: Add support for adesto SPI flash partsChris Douglass
Adds support for the following Adesto Technologies SPI Flash parts. AT25DF081 AT25DF321 AT25DF641 It has been tested on an Orion VPX7654 board populated with an AT25DF321A part. The "08" and "64" densities have not been tested. These parts are the successors of the Atmel AT26DF line that was spun out or purchased by Adesto. In this patch, adesto.c is identical to winbond.c with part entries for the Adesto parts. The datasheet for the AT25DF parts includes a "100MHz" programming command in addition to the "85MHz" command that is currently used but this patch does not add support for that enhanced programming mode. Change-Id: If82d075fd9000030480c412c645dcae2c8bb7439 Signed-off-by: Christopher Douglass <cdouglass.orion@gmail.com> Reviewed-on: http://review.coreboot.org/5225 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-02-28drivers/spi: Sort SPI flash filesChris Douglass
Change-Id: Id7e65065556ca7225969ca0afdb21eda24aeb967 Signed-off-by: Christopher Douglass <cdouglass.orion@gmail.com> Reviewed-on: http://review.coreboot.org/5260 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-02-17src/drivers/spi: introduce AMIC supportIdwer Vollering
Add support for the AMIC A25L032 flash chip. Change-Id: Ie8d441a923c6fbd18c16440b4571321652d934d5 Signed-off-by: Idwer Vollering <vidwer@gmail.com> Reviewed-on: http://review.coreboot.org/5252 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-01-28spi: Add support for Winbod W25Q64DWAaron Durbin
The W25Q64DW spi part is programatically equivalent to the other W25Q64 parts except it operates at 1.8V. Just add a new entry with the appropriate ID. BUG=chrome-os-partner:22292 BRANCH=None TEST=SPI controller can program the part. Change-Id: I65b0261223a9fefcb07477a43b6a3edb8228dd03 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/170011 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/5077 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2014-01-23SPI: Add API for programmer-specific flashing.Vladimir Serbinenko
Change-Id: I7a2f5b9ae74458b5ed6271b1c27842c61546dcd2 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4712 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-01-12drivers/spi/eon: Add EN25Q64Vladimir Serbinenko
chip found in X230 if not using hardware sequencing. Change-Id: I6ded10d35bfdbbe3d54c4170dd7846c7833f5ff7 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4616 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-08-23SPI: Support STMicro partial page writeKyösti Mälkki
Ported from spi/winbond.c. Fixes this error: ICH SPI: Too much to write. Does your SPI chip driver use CONTROLLER_PAGE_LIMIT? Change-Id: I50db8fd1104d3b7d319b278b14f97e3ff9cb6404 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3877 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-03-01GPLv2 notice: Unify all files to just use one space in »MA 02110-1301«Paul Menzel
In the file `COPYING` in the coreboot repository and upstream [1] just one space is used. The following command was used to convert all files. $ git grep -l 'MA 02' | xargs sed -i 's/MA 02/MA 02/' [1] http://www.gnu.org/licenses/gpl-2.0.txt Change-Id: Ic956dab2820a9e2ccb7841cab66966ba168f305f Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2490 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-20Whitespace: Replace tab character in license text with two spacesPaul Menzel
For whatever reason tabs got inserted in the license header text. Remove one occurrence of that with the following command [1]. $ git grep -l 'MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.'$'\t' | xargs sed -i 's,MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.[ ]*,MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\ \ ,' [1] http://sed.sourceforge.net/grabbag/tutorials/sedfaq.txt Change-Id: Iaf4ed32c32600c3b23c08f8754815b959b304882 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2460 Tested-by: build bot (Jenkins) Reviewed-by: Jens Rottmann <JRottmann@LiPPERTembedded.de> Reviewed-by: Cristian Măgherușan-Stanciu <cristi.magherusan@gmail.com>
2013-02-11spi.h: Rename the spi.h to spi-generic.hZheng Bao
Since there are and will be other files in nb/sb folders, we change the general spi.h to a file name which is not easy to be duplicated. Change-Id: I6548a81206caa608369be044747bde31e2b08d1a Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/2309 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-12-12Claim the SPI bus before writes if the IMC ROM is presentMartin Roth
The SB800 and Hudson now support adding the IMC ROM which runs from the same chip as coreboot. When the IMC is running, write or erase commands sent to the spi bus will fail, and the IMC will die. To fix this, we send a request to the IMC to stop fetching from the SPI rom while we write to it. This process (in one form or another) is required for writes to the SPI bus while the IMC is running. Because the IMC can take up to 500ms to respond every time we claim the bus, this patch tries to keep the number of times we need to do that to a minimum. We only need to claim the bus on writes, and using a counter for the semaphore allows us to call in once to claim the bus at the beginning of a number of transactions and it will stay claimed until we release it at the end of the transactions. Claim() - takes up to 500ms hit claim() - no delay erase() release() claim() - no delay write() release() Release() Change-Id: I4e003c5122a2ed47abce57ab8b92dee6aa4713ed Signed-off-by: Martin Roth <martin@se-eng.com> Reviewed-on: http://review.coreboot.org/1976 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-12-08Limit SPI device debug prints with CONFIG_DEBUG_SPI_FLASHMarc Jones
Fix debug printks which were not using CONFIG_DEBUG_SPI_FLASH, which would cause long delays durring boot when SPI devices were written. Change-Id: I99fc3d5f847fdf4bb98e2a0342ea418ab7d5fc54 Signed-off-by: Marc Jones <marc.jones@se-eng.com> Reviewed-on: http://review.coreboot.org/1965 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-06driver/spi: Add support of MX25L3235DZheng Bao
Tested on Thatcher. Change-Id: I648171ba0d03be1e984c182f6d0f082241e3f51c Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/1971 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-27SPI/SST: Add OpCode Enable-Write-Status-Register (EWSR)Zheng Bao
For SST chips, the Write-Status-Register instruction must be executed immediately after the execution of the Enable-Write-Status-Register instruction, instead of Write-Enable. Change-Id: I4b3473cd671829def3bd1641ececcf8d9dad4a56 Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/1919 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-11-12SPI: Fix and enable Fast Read supportDuncan Laurie
- Fix handling of 5-byte Fast Read command in the ICH SPI driver. This fix is ported from the U-boot driver. - Allow CONFIG_SPI_FLASH_NO_FAST_READ to be overridden by defining a name for the bool in Kconfig and removing the forced select in southbridge config - Fix use of CONFIG_SPI_FLASH_NO_FAST_READ in SPI drivers to use #if instead of #ifdef - Relocate flash functions in SMM so they are usable. This really only needs to happen for read function pointer since it uses a global function rather than a static one from the chip, but it is good to ensure the rest are set up correctly as well. Change-Id: Ic1bb0764cb111f96dd8a389d83b39fe8f5e72fbd Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/1775 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-09Add Gigadevice SPI rom supportMartin Roth
Add support for GigaDevice SPI ROMS. The GD25Q64B device has been tested, the other rom devices added to the file have not. Change-Id: If35676ca6b90329f15667ebb32efa0d1a159ae91 Signed-off-by: Martin Roth <martin@se-eng.com> Reviewed-on: http://review.coreboot.org/1747 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24SMM: Add option for SPI driver to be available in SMMDuncan Laurie
- add Kconfig option for CONFIG_SPI_FLASH_SMM - compile subsystem and chip drivers for smm if enabled - change mdelay(1) to udelay(500) since mdelay is not defined in SMM and a 1ms delay is worth avoiding - make flash chip structure non-const so the probe function pointers can be relocated for use in TSEG - Make SMM PCI access possible in southbridge SPI code Change-Id: Icfcbbe8e4e56658769d46af0b5bf6c79a6432641 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/1313 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24SPI flash layer: remove unused function spi_flash_free()Stefan Reinauer
We don't ever free memory in coreboot, hence drop spi_flash_free() and spi_free_slave() Change-Id: I0ca3f78574ceb4516e7d33c06ab1a58abfb3b0ec Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1273 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-05-29Fix compilation with CONFIG_DEBUG_SPI_FLASH enabledStefan Reinauer
Right now coreboot compilation fails when SPI flash debugging is enabled. Fix it by using the right set of memory functions. Change-Id: I5e372c4a5df53b4d46aaed9e251e5205ff68cb5b Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1044 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-05-26Reduce default verbosity of SPI flash driversStefan Reinauer
Only print PP: lines if CONFIG_DEBUG_SPI_FLASH is enabled. Change-Id: If25e916ecb585f37c90d42980e933a6cd1a3d956 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1045 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-05-26Fix printk types in SPI flash driversStefan Reinauer
- use %zu instead of %zd for size_t (%zd is for ssize_t) - use %x instead of %lx for u32 - break some long lines to avoid commit hook trouble Change-Id: Idfad716523dbcd2a595d26317240e972b5253e8b Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1041 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-05-14SPI driver: style fixPatrick Georgi
lint tests for labels to start at BOL, no spaces before them. Change-Id: Icf6ce533f26998a81b4be46d17e2d0b6b868904d Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/1029 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-05-10Add SPI flash driverStefan Reinauer
This driver is taken from u-boot and adapted to match coreboot. It still contains some hacks and is ICH specific at places. Change-Id: I97dd8096f7db3b62f8f4f4e4d08bdee10d88f689 Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/997 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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