Commit graph

12 commits

Author SHA1 Message Date
Furquan Shaikh
bd205419f1 intel/skylake: Run spi_init as early as possible in ramstage
spi_init should be run early enough in ramstage so that any init
calls (e.g. mainboard_ec_init) that write on flash have right
permissions set.

Change-Id: I9cd3dc723387757951acd40449d4a41986836d2a
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15235
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-06-21 19:54:23 +02:00
Duncan Laurie
205ed2d2b5 skylake: Add function to set PRR for protecting flash
Add a function similar to broadwell to set the PRR for a region of
flash and protect it from writes.  This is used to secure the MRC
cache region if the SPI is write protected.

BUG=chrome-os-partner:54003
BRANCH=glados
TEST=boot on chell, verify PRR register is set and that the
MRC cache region cannot be written if the SPI is write protected.

Change-Id: I925ec9ce186f7adac327bca9c96255325b7f54ec
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Commit-Id: abb6f645f5ceef3f52bb7afd2632212ea916ff8d
Original-Change-Id: I2f90556a217b35b7c93645e41a1fcfe8070c53da
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/349274
Original-Reviewed-by: Shawn N <shawnn@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-on: https://review.coreboot.org/15102
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-06-09 17:06:58 +02:00
Naresh G Solanki
a69d2f4268 intel/skylake: Fix klockwork violation
File: src/soc/intel/skylake/flash_controller.c
 Line: 192
	Variable 'ret' might be used uninitialized in this function.
	Hence initializing it with initial value of zero.

BRANCH=None
BUG=chrome-os-partner:48542
TEST=Built & booted Kunimitsu board.

Change-Id: I4e63612890057a2180f38b2e74419d98b02b70c1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b93ca876912d2336dae25b9b84e56ffb171b215b
Original-Change-Id: Ied8c909f5294d56daddb2806111d477246f98957
Original-Reviewed-on: https://chromium-review.googlesource.com/322082
Original-Commit-Ready: Naresh Solanki <naresh.solanki@intel.com>
Original-Tested-by: Naresh Solanki <naresh.solanki@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13072
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-22 13:02:02 +01:00
Naresh G Solanki
a1b3547f0f intel/skylake: Fix issues found by klockwork
src/soc/intel/skylake/acpi.c
  Function cbmem_find may return NULL, check before using its result.

src/soc/intel/skylake/flash_controller.c
  Remove dead code: spi_claim_bus is a no-op, always returning 0.

src/soc/intel/skylake/gpio.c
  Check for NULL before using pointers.

src/soc/intel/skylake/igd.c
  Don't copy 0-termination of signature string.

src/soc/intel/skylake/lpc.c
  Don't check unsigned >= 0.

src/soc/intel/skylake/systemagent.c
  Explicitly cast result to 64bit.

BRANCH=None
BUG=chrome-os-partner:48542
TEST=Built & booted Kunimitsu board.

Change-Id: I6cbf4f78382383d3c8c3b15f66c5898ab5bf183a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: d98a8cdd3d095a6943c0e104cd4938639a62bd14
Original-Change-Id: Id2a31402618f4c9f6f53525ebcf6b71fd67428db
Original-Signed-off-by: Naresh G Solanki <Naresh.Solanki@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/317522
Original-Commit-Ready: Naresh Solanki <naresh.solanki@intel.com>
Original-Tested-by: Naresh Solanki <naresh.solanki@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12991
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins)
2016-01-19 17:23:42 +01:00
Stefan Reinauer
5ff2502151 intel/skylake: Fix flash_controller.c compilation
Since this code is not currently being built by coreboot, it
failed compilation.

Change-Id: Ib8a0e1ebc76b7dca3dd785b09398b73abad46366
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12466
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-11-20 20:22:34 +01:00
Patrick Georgi
a73b93157f tree: drop last paragraph of GPL copyright header
It encourages users from writing to the FSF without giving an address.
Linux also prefers to drop that and their checkpatch.pl (that we
imported) looks out for that.

This is the result of util/scripts/no-fsf-addresses.sh with no further
editing.

Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11888
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-10-31 21:37:39 +01:00
Aaron Durbin
11f356c390 skylake: refactor flash_controller code
There's no need to add any typedefs nor guard code with
ENV_ROMSTAGE. The linker will garbage collect unused functions.
Additionally there were a few errors in the code including
the operation mask wasn't wide enough to clear out old operations
as well as component size decoding was incorrect.

The big difference in the code flow is that the operation
setup is now in one place. The stopwatch API is also used in
order to not open code time calculations.

BUG=chrome-os-partner:42115
BUG=chrome-os-partner:43522
BRANCH=None
TEST=Built and booted. Suspended and resumed. event log is populated
     for all.

Change-Id: I0ddd42f0744cf8f88da832d7d715663238209a71
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 9893fe309104c05edfb158afda6bb029801c0489
Original-Change-Id: I6468f5b9b4a73885b69ebd916861dd2e8e3746b6
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/295980
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11543
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-09-08 11:30:11 +00:00
Aaron Durbin
ce03aaf08c skylake: move flash_controller.h to the proper place
I missed this in code review. This should be under the soc
directory.

BUG=chrome-os-partner:43522
BRANCH=None
TEST=Built glados.

Change-Id: Ia018c20f97f267b8f7592b2459d10eafe5ec7159
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 9c081ed6de46605b7d0a72962ac2a041c470b12c
Original-Change-Id: Ic3938fe5d71bd24a395304cfabe40eff48bc4a40
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/295239
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11542
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-09-08 11:29:53 +00:00
Aaron Durbin
394d6993b9 skylake: fix eventlog on resume path
The spi_init() routine needs to be called in all boot paths to allow
writes to the SPI part. The reason is that the write enable is done
in spi_init(). Moreover, this is also required for a writing a firmware
update after a resume.

BUG=chrome-os-partner:42115
BRANCH=None
TEST=Built and booted glados. Suspended and resumed. Eventlogs show
     up in resume path.

Change-Id: I187baa940bb45ef90ab82e67c02f13d8855d364e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 8813ab227395cfcba46ad4109730a1eb5897e538
Original-Change-Id: Ida726fc29e6d49cd9af02c4e57125e09f2599c36
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/295238
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11541
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-09-08 11:22:36 +00:00
Stefan Reinauer
4460703f59 Drop "See file CREDITS..." comment
coreboot has no CREDITS file.

Change-Id: Iaa4686979ba1385b00ad1dbb6ea91e58f5014384
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/11514
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-07 15:54:50 +00:00
Subrata
d92f6127e1 intel/skylake: Implemented generic SPI driver for ROM/RAMSTAGE access.
Created generic library to implement SPI read, write, erase and
read status functionality for both ROMSTAGE and RAMSTAGE access.

BRANCH=NONE
BUG=chrome-os-partner:42115
TEST=Built for sklrvp and kunimitsu and verify SPI read, write,
erase success from ELOG.

Change-Id: Idf4ffdb550e2a3b87059554e8825a1182b448a8a
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Original-Commit-Id: 74907352931db78802298fe7280a39913a37f0c2
Original-Change-Id: Ib08da1b8825e2e88641acbac3863b926ec48afd9
Original-Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/294444
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Subrata Banik <subrata.banik@intel.com>
Original-Commit-Queue: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: http://review.coreboot.org/11422
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-08-29 07:23:57 +00:00
Lee Leahy
1d14b3e926 soc/intel: Add Skylake SOC support
Add the files to support the Skylake SOC.
Matches chromium tree at 927026db

BRANCH=none
BUG=None
TEST=Build and run on a Skylake platform

Change-Id: I80248f7e47eaf13b52e3c7ff951eb1976edbaa15
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10341
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-16 17:24:48 +02:00