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path: root/src/drivers/spi
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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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