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Location is hard-coded right now, which isn't optimal.
It must be chip erase block aligned, which might fail on some flash chips
(it's 64k aligned which should work for most cases).
Change-Id: I6fe0607948c5fab04b9ed565a93e00b96bf44986
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/3497
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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The cbmem_post_handling() function was implemented by 2
chipsets in order to save memory configuration in flash. Convert
both of these chipsets to use the boot state machine callbacks
to perform the saving of the memory configuration.
Change-Id: I697e5c946281b85a71d8533437802d7913135af3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3137
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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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>
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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>
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The MRC cache code, as implemented, in some cases uses configuration
settings for MRC cache region, and in some cases - the values read
from FMAP. These do not necessarily match, the code should use FMAP
across the board.
This change also refactors mrccache.c to limit number of iterations
through the cache area and number of fmap area searches.
Change-Id: Idb9cb70ead4baa3601aa244afc326d5be0d06446
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/1788
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Until now, the MRC cache position and size was hard coded in Kconfig.
However, on ChromeOS devices, it should be determined by reading the
FMAP.
This patch provides a minimalistic FMAP parser (libflashmap was too
complex and OS centered) to allow reading the in-ROM flash map and
look for sections.
This will also be needed on some partner devices where coreboot will
have to find the VPD in order to set up the device's mac address
correctly.
The MRC cache implementation demonstrates how to use the FMAP parser.
Change-Id: I34964b72587443a6ca4f27407d778af8728565f8
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1701
Reviewed-by: Marc Jones <marcj303@gmail.com>
Tested-by: build bot (Jenkins)
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When no valid MRC cache area is found, the mrc_cache data structure
was used without prior initialization. This sometimes caused a long
delay when booting because compute_ip_checksum would checksum up to
4GB of memory.
Change-Id: I6a0ca1aa618838bbc3d042be425700fc34b427f2
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1277
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Originally, ChromeBooks would get the offset of the MRC cache
from an entry in the u-boot device tree. Not everyone wants to
use u-boot on Sandybridge systems, however.
Since the new code (based on Kconfig) is now fully working, we
can drop the u-boot device tree remnants.
Change-Id: I4e012ea981f16dce9a4d155254facd29874b28ef
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1051
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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The MRC region is described by Kconfig variables, no further math
or parsing is required at this point.
Change-Id: I290d8788b69ef007e9ea2317ce55aefa2d791883
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1046
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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- Separate Sandybridge from ChromeOS a bit
The Sandybridge code depends on chromeos features a whole lot.
As a first step, provide a code path to look up the MRC cache
without depending on u-boot.
- Move mrc cache handling to separate file
This enables us to handle the MRC cache from ramstage,
where we can write the flash safely (eg. to update the
cache).
Also teach it to lookup the current MRC cache from CBMEM,
as the original data block isn't available anymore.
After all the preparations, finally write to the SPI
as necessary. It's a simple round robin wear levelling
that erases the entire MRC cache region when it's full
and starts from the beginning.
Change-Id: I4751385574cf709b03d5c9d153b7481ffc90ce12
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/1001
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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