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2015-07-29arm, arm64, mips: Add rough static stack size checks with -Wstack-usageJulius Werner
We've seen an increasing need to reduce stack sizes more and more for space reasons, and it's always guesswork because no one has a good idea how little is too litte. We now have boards with 3K and 2K stacks, and old pieces of common code often allocate large temporary buffers that would lead to very dangerous and hard to detect bugs when someone eventually tries to use them on one of those. This patch tries improve this situation at least a bit by declaring 2K as the minimum stack size all of coreboot code should work with. It checks all function frames with -Wstack-usage=1536 to make sure we don't allocate more than 1.5K in a single buffer. This is of course not a perfect test, but it should catch the most common situation of declaring a single, large buffer in some close-to-leaf function (with the assumption that 0.5K is hopefully enough for all the "normal" functions above that). Change one example where we were a bit overzealous and put a 1K buffer into BSS back to stack allocation, since it actually conforms to this new assumption and frees up another kilobyte of that highly sought-after verstage space. Not touching x86 with any of this since it's lack of __PRE_RAM__ BSS often requires it to allocate way more on the stack than would usually be considered sane. BRANCH=veyron BUG=None TEST=Compiled Cosmos, Daisy, Falco, Blaze, Pit, Storm, Urara and Pinky, made sure they still build as well as before and don't show any stack usage warnings. Change-Id: Idc53d33bd8487bbef49d3ecd751914b0308006ec Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 8e5931066575e256dfc2295c3dab7f0e1b65417f Original-Change-Id: I30bd9c2c77e0e0623df89b9e5bb43ed29506be98 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/236978 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9729 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-02cbfs: new API and better program loadingAaron Durbin
A new CBFS API is introduced to allow making CBFS access easier for providing multiple CBFS sources. That is achieved by decoupling the cbfs source from a CBFS file. A CBFS source is described by a descriptor. It contains the necessary properties for walking a CBFS to locate a file. The CBFS file is then decoupled from the CBFS descriptor in that it's no longer needed to access the contents of the file. All of this is accomplished using the regions infrastructure by repsenting CBFS sources and files as region_devices. Because region_devices can be chained together forming subregions this allows one to decouple a CBFS source from a file. This also allows one to provide CBFS files that came from other sources for payload and/or stage loading. The program loading takes advantage of those very properties by allowing multiple sources for locating a program. Because of this we can reduce the overhead of loading programs because it's all done in the common code paths. Only locating the program is per source. Change-Id: I339b84fce95f03d1dbb63a0f54a26be5eb07f7c8 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9134 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-05-28Remove leftover tseg_relocateVladimir Serbinenko
Change-Id: I534f992ed479c7cdc049bd598259b1f1cf2953b9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/10354 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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>
2015-05-04drivers/spi/stmicro: Rename N25Q256A to N25Q256David Imhoff
The 'A' indicates the production process(64 nm). All other chips from the same family leave this out. TEST=Build and booted on Minnowboard Max Change-Id: I21e6c01de5d547bbc2252e679a001948e7ab752c Signed-off-by: David Imhoff <dimhoff_devel@xs4all.nl> Reviewed-on: http://review.coreboot.org/10078 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-05-04drivers/spi/stmicro: Add '.op_erase' for N25Q256David Imhoff
'.op_erase' was not specified for this chip. Set it to sub sector erase(CMD_M25PXX_SSE). Adjust page/sector size for sub sector erase to work. TEST=Untested, due to lack of hardware. Change-Id: Icc2748fbd3afeb56693e1c17d97eb490fba67064 Signed-off-by: David Imhoff <dimhoff_devel@xs4all.nl> Reviewed-on: http://review.coreboot.org/10077 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-05-04drivers/spi/stmicro: Add N25Q064 supportDavid Imhoff
N25Q064 is similar to N25Q128. TEST=Build and booted twice on Minnowboard Max Change-Id: Iec105f8b81f619846cf40b40042cc59150b81149 Signed-off-by: David Imhoff <dimhoff_devel@xs4all.nl> Reviewed-on: http://review.coreboot.org/10076 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-05-04spi: Remove out of date comment and reorder flash tableDavid Imhoff
What is described by the comment has already been fixed in f0d038f4 (flash: use two bytes of device ID to identify stmicro chips). This also means that STM_ID_N25Q128 doesn't have to be at the top of stmicro_spi_flash_table anymore. TEST=Untested, due to lack of hardware Change-Id: I7a9e9a0cdfdb1cf34e914e186fc6957c1d9b5ca6 Signed-off-by: David Imhoff <dimhoff_devel@xs4all.nl> Reviewed-on: http://review.coreboot.org/10068 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-05-04spi: Change 'page' to 'sector' in log messageDavid Imhoff
The log message says 'page size' while actually the sector size is printed. This is confusing since for stmicro page size != sector size. Also add '0x' prefix to numbers to make it clear they are in hex. TEST=Build and booted on Minnowboard Max Change-Id: I795a4b7c1bc8de2538a87fd4ba56f5a78d9ca2ac Signed-off-by: David Imhoff <dimhoff_devel@xs4all.nl> Reviewed-on: http://review.coreboot.org/10067 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-04-17flash: use two bytes of device ID to identify stmicro chipsDaisuke Nojiri
stmicro flash chips use 2 bytes as a device id: upper byte for memory type and lower byte for capacity. with this change, we will use all 2 bytes to identify a chip. BUG=none BRANCH=broadcom-firmware TEST=booted purin and verified n25q256a was identified. Change-Id: I8f382eddc4fa70d3deceb4f9d2e82026a7025629 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 12f70a1d4b7e1142afec9ce097c4a21b6225f66e Original-Change-Id: Id3378a77318fabb74ddb30f1a9549010636872ba Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Reviewed-on: https://chrome-internal-review.googlesource.com/199387 Original-Reviewed-by: Corneliu Doban <cdoban@broadcom.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Daisuke Nojiri <dnojiri@google.com> Original-Tested-by: Daisuke Nojiri <dnojiri@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/251305 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/9774 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
2015-04-17spi: allow inclusion of Micronix and STM drivers in bootblockVadim Bendebury
Bootblock does not allow using malloc, use statically allocated chip structures instead. BRANCH=storm BUG=chrome-os-partner:33489 TEST=both drivers compile when configured in, also booted whirlwind with an STM compatible SPI NOR flash. Change-Id: I154c33ce5fc278d594205d8b8e62a56edb4e177e Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: eedbb959a595e0898e7a1dd551fc7c517a02f370 Original-Change-Id: I29b37107ac1d58a293f531f59ee76b3d8c4b3e7c Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/248992 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9772 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-17spi: Add function to read flash status registerDuncan Laurie
Add a function that allows reading of the status register from the SPI chip. This can be used to determine whether write protection is enabled on the chip. BUG=chrome-os-partner:35209 BRANCH=haswell TEST=build and boot on peppy Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/240702 Reviewed-by: Shawn N <shawnn@chromium.org> (cherry picked from commit c58f17689162b291a7cdb57649a237de21b73545) Change-Id: Ib7fead2cc4ea4339ece322dd18403362c9c79c7d Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 9fbdf0d72892eef4a742a418a347ecf650c01ea5 Original-Change-Id: I2541b22c51e43f7b7542ee0f48618cf411976a98 Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/241128 Original-Reviewed-by: Shawn N <shawnn@chromium.org> Reviewed-on: http://review.coreboot.org/9730 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-17drivers/spi: Pass flash parameters from coreboot to payloadDan Ehrenberg
A payload may want to run erase operations on SPI NOR flash without re-probing the device to get its properties. This patch passes up three properties of flash to achieve that: - The size of the flash device - The sector size, i.e., the granularity of erase - The command used for erase The patch sends the parameters through coreboot and then libpayload. The patch also includes a minor refactoring of the flash erase code. Parameters are sent up for just one flash device. If multiple SPI flash devices are probed, the second one will "win" and its parameters will be sent up to the payload. TEST=Observed parameters to be passed up to depthcharge through libpayload and be used to correctly initialize flash and do an erase. TEST=Winbond and Gigadevices spi flash drivers compile with the changes; others don't, for seemingly unrelated reasons. BRANCH=none BUG=chromium:446377 Change-Id: Ib8be86494b5a3d1cfe1d23d3492e3b5cba5f99c6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 988c8c68bbfcdfa69d497ea5f806567bc80f8126 Original-Change-Id: Ie2b3a7f5b6e016d212f4f9bac3fabd80daf2ce72 Original-Signed-off-by: Dan Ehrenberg <dehrenberg@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/239570 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/9726 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-13spi: support controllers with limited transfer size capabilitiesVadim Bendebury
Some SPI controllers (like Imgtec Pistachio), have a hard limit on SPI read and write transactions. Limiting transfer size in the wrapper allows to provide the API user with unlimited transfer size transactions. The tranfer size limitation is added to the spi_slave structure, which is set up by the controller driver. The value of zero in this field means 'unlimited transfer size'. It will work with existion drivers, as they all either keep structures in the bss segment, or initialize them to all zeros. This patch addresses the problem for reads only, as coreboot is not expected to require to write long chunks into SPI devices. BRANCH=none BUG=chrome-os-partner:32441, chrome-os-partner:31438 TEST=set transfer size limit to artificially low value (4K) and observed proper operation on both Pistachio and ipq8086: both Storm and Urara booted through romstage and ramstage. Change-Id: Ibb96aa499c3eec458c94bf1193fbbbf5f54e1477 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 4f064fdca5b6c214e7a7f2751dc24e33cac2ea45 Original-Change-Id: I9df24f302edc872bed991ea450c0af33a1c0ff7b Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/232239 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/9571 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-20verstage should include the CBFS SPI wrapper, when configuredVadim Bendebury
Vboot2 targets so far did not have COMMON_CBFS_SPI_WRAPPER configuration option enabled, so the verstage is missing the relevant files in some Makefiles. This patch fixes the problem. BRANCH=none BUG=none TEST=with the rest of the patches applied cosmos target builds fine with COMMON_CBFS_SPI_WRAPPER enabled Change-Id: I3ce78c8afc5f7d8ce822bbf8dd789c0c2ba4b99c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: b72693c96f7d8ce94ce6fe12b316d5b88fded579 Original-Change-Id: Iab813b9f5b0156c45b007fe175500ef0de50e65c Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/223751 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8772 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2015-03-20spi: Add GigaDevice GD25LQ64C/GD25LB64C SPI ROM supportMarc Jones
GD25LQ64C and GD25LB64C have the same ID and settings. BUG=chrome-os-partner:25907 BRANCH=baytrail TEST=Boot with GD25LQ64 and check MRC data save/restore works. Change-Id: I8a4aa7cabd9a7657c2f0bae255a87341db3f1061 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 20b5896adbbbdedcb1b7de435466dcc6bfa703cb Original-Change-Id: I86d1e69552b6000faa9e0523356e27d7e2a6a6db Original-Signed-off-by: Marc Jones <marc.jones@se-eng.com> Original-Reviewed-on: https://chromium-review.googlesource.com/193238 Original-Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/8770 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2015-03-20spi: do not use malloc in Gigadevice driverDavid Hendricks
This allows us to use the driver before ramstage. BRANCH=none BUG=none TEST=built and booted on Pinky Change-Id: I0700388b0e4e0562e3c0a52863c8357097bfd8d6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: cd57587dab74de509d5c50cfc1ad337d765af6c8 Original-Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: I0ce901331e401274254b8889484ffb41359119fa Original-Reviewed-on: https://chromium-review.googlesource.com/235864 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/8774 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-03-20spi: do not use malloc in Winbond driverVadim Bendebury
When the driver is included in bootblock, malloc() is not available. Come to think of it, it is perfectly fine to use a statically allocated structure for the SPI device descriptor - coreboot is unlikely to require concurrent support of multiple SPI devices of the same kind. BRANCH=none BUG=chrome-os-partner:31438 TEST=bootblock on the FPGA board recognizes the installed Winbond device: coreboot-4.0 bootblock Tue Nov 11 07:27:24 PST 2014 starting... SF: Detected W25Q16 with page size 1000, total 200000 Change-Id: Iea1936a219d38848580a10f75eb8bbcab17e6507 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 0b4082442aa526d387a80cb5872d78670e6b468b Original-Change-Id: Iaa69d610ef18e69b1ae5ade2d958f9fe1595a723 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/228959 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8771 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2015-03-20spi_flash: add support for S25FL116KDaisuke Nojiri
S25FL116K family uses the first 3 bytes in response to a legacy identification command (9f) while previously supported models use the last 4 bytes. This change defines identify functions to allow both types to be handled correctly. BUG=none BRANCH=tot TEST=verified romstage is loaded on cosmos development board. Change-Id: I1970a9af17e81299fada5029724d405de4022156 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 65ff436db2355cb68a766a3dedbcd7e2f765e6db Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Change-Id: Icdd2645e356652672c4482e7b805da1bc0f21e71 Original-Reviewed-on: https://chromium-review.googlesource.com/234431 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/8773 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-01-09spi: Add Spansion flash S25FL128PVadim Bendebury
Storm devices use more recent Spansion flash, add its description to the table of supported devices. BUG=chrome-os-partner:29871 TEST=the updated firmware boots all the way to depthcharge Original-Change-Id: I81661c01ae679d49918e40d940b8d348f3081f9a Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/205182 Original-Reviewed-by: Stefan Reinauer <reinauer@google.com> (cherry picked from commit ea7bb1cf65b7130164b869fef09c55138100206b) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I1e0136a5c575951b4e464aab0f380f19e886a84f Reviewed-on: http://review.coreboot.org/8146 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-12-30SPI: Add Eon EN25S64 support.Marc Jones
BUG=chrome-os-partner:25907 BRANCH=baytrail(rambi) TEST=Read and write MRC and ELOG on Glimmer with Eon device. Original-Change-Id: If883ff6eb14dd49a06f57a01ca61661854ded78d Original-Reviewed-on: https://chromium-review.googlesource.com/198324 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Commit-Queue: Marc Jones <marc.jones@se-eng.com> Original-Tested-by: Marc Jones <marc.jones@se-eng.com> (cherry picked from commit 536c34c2d92178f4e62b8ca7cfffceaf80a305f6) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I199451ed2b29c55bfb5e1487afa8cf3b9978e63e Reviewed-on: http://review.coreboot.org/7935 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins)
2014-12-30SPI: Fix Eon supportMarc Jones
The Eon SPI25 code had a number of issues: - fix page write calculation - fix erase segment - fix id check - fix sector size - make commands EN25 generic This makes the code similar to other SPI25 devices used in coreboot. BUG=chrome-os-partner:25907 BRANCH=baytrail(rambi) TEST=Read and write MRC and ELOG on Glimmer with Eon device. Original-Change-Id: I7667eab28b850790d92a591c869788d51c26a56c Original-Signed-off-by: Marc Jones <marc.jones@se-eng.com> Original-Reviewed-on: https://chromium-review.googlesource.com/198323 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Commit-Queue: Marc Jones <marc.jones@se-eng.com> Original-Tested-by: Marc Jones <marc.jones@se-eng.com> (cherry picked from commit 2ee0da695bf6a6c6aedc0dd2b3a3b7c9c3165bca) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I8917e778cd62f3745189336d23c0c6118887d893 Reviewed-on: http://review.coreboot.org/7934 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-30drivers/spi: Prepare Spansion driver for use in CBFS wrapperVadim Bendebury
Since the same driver is going to be used at all coreboot stages, it can not use malloc() anymore. Replace it with static allocation of the driver container structure. The read interface is changed to spi_flash_cmd_read_slow(), because of the problems with spi_flash_cmd_read_fast() implementation. In fact there is no performance difference in the way the two interface functions are implemented. BUG=chrome-os-partner:27784 TEST=manual . with all patches applied coreboot proceeds to attempting to load the payload. Original-Change-Id: I1c7beedce7747bc89ab865fd844b568ad50d2dae Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/197931 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 57ee2fd875c689706c70338e073acefb806787e7) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I9d9e7e343148519580ed4986800dc6c6b9a5f5d2 Reviewed-on: http://review.coreboot.org/7933 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-30Provide a common CBFS wrapper for SPI storageVadim Bendebury
Coreboot has all necessary infrastructure to use the proper SPI flash interface in bootblock for CBFS. This patch creates a common CBFS wrapper which can be enabled on different platforms as required. COMMON_CBFS_SPI_WRAPPER, a new configuration option, enables the common CBFS interface and prevents default inclusion of all SPI chip drivers, only explicitly configured ones will be included when the new feature is enabled. Since the wrapper uses the same driver at all stages, enabling the new feature will also make it necessary to include the SPI chip drivers in bootblock and romstage images. init_default_cbfs_media() can now be common for different platforms, and as such is defined in the library. BUG=none TEST=manual . with this change and the rest of the patches coreboot on AP148 comes up all the way to attempting to boot the payload (reading earlier stages from the SPI flash along the way). Original-Change-Id: Ia887bb7f386a0e23a110e38001d86f9d43fadf2c Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/197800 Original-Tested-by: Vadim Bendebury <vbendeb@google.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 60eb16ebe624f9420c6191afa6ba239b8e83a6e6) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I7b0bf3dda915c227659ab62743e405312dedaf41 Reviewed-on: http://review.coreboot.org/7932 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-30drivers/spi: add support for another Spansion chipVadim Bendebury
Add the device ID definitions and properties for the SPI chip used on the AP148 board (Google Storm). BUG=chrome-os-partner:27784 TEST=manual . with the rest of the patches applied AP148 boots all the way to trying to read the payload. Original-Change-Id: I5a0e5c9d3cc9ea81bc5227c0fbc1d0a5fc7bec27 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/197895 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit a7c69981b18ac6b1158273596b94df0def65963d) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I14e2f4f8f691a7db6ed596a3440914e08680867b Reviewed-on: http://review.coreboot.org/7931 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-17spi_flash: Move (de-)assertion of /CS to single locationDavid Hendricks
This consolidates all calls to spi_claim_bus() and spi_release_bus() to a single location where spi_xfer() is called. This avoids confusing (and potentially redundant) calls that were being done throughout the generic spi_flash.c functions and chip-specific functions. I don't think the current approach could even work since many chip drivers assert /CS once and then issue multiple commands such as page program followed by reading the status register. I suspect the reason we didn't notice it on x86 is because the ICH/PCH handled each individual command correctly (spi_claim_bus() and spi_release_bus() are noops) in spite of the broken code. BUG=none BRANCH=none TEST=tested on nyan and link Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: I3257e2f6a2820834f4c9018069f90fcf2bab05f6 Original-Reviewed-on: https://chromium-review.googlesource.com/194510 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 d3394d34fb49e9e252f67371674d5b3aa220bc9e) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Ieb62309b18090d8f974f91a6e448af3d65dd3d1d Reviewed-on: http://review.coreboot.org/7829 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 10:39:48 +0000