Commit Graph

1123 Commits

Author SHA1 Message Date
Randall Spangler 144c2283a4 vboot: Include vb2_api.h, instead of lower-level vboot2 header files
This will allow vboot2 to continue refactoring without breaking
coreboot, since there's now only a single file which needs to stay in
sync.

BUG=chromium:423882
BRANCH=none
TEST=emerge-veyron_pinky coreboot
CQ-DEPEND=CL:233050

Original-Change-Id: I74cae5f0badfb2d795eb5420354b9e6d0b4710f7
Original-Signed-off-by: Randall Spangler <rspangler@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/233051
Original-Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>

(cherry picked from commit df55e0365de8da85844f7e7b057ca5d2a9694a8b)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I999af95ccf8c326f2fd2de0f7da50515e02ad904
Reviewed-on: http://review.coreboot.org/9446
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
2015-04-10 16:49:15 +02:00
Furquan Shaikh efb546dfeb ramoops: Add support for passing ramoops region through cb tables.
CQ-DEPEND=CL:228856
BUG=chrome-os-partner:33676
BRANCH=None
TEST=ramoops buffer verified on ryu.

Original-Change-Id: I29584f89ded0c22c4f255a40951a179b54761053
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/228744
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>

(cherry picked from commit e8b2c8b75c51160df177edc14c90e5bd3836e931)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I5fdeb59056945a602584584edce9c782151ca8ea
Reviewed-on: http://review.coreboot.org/9442
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-10 16:48:30 +02:00
David Hendricks 627b3bd2b0 cbtables: Add RAM config information
This adds the RAM config code to the coreboot tables. The purpose is
to expose this information to software running at higher levels, e.g.
to print the RAM config coreboot is using as part of factory tests.

The prototype for ram_code() is in boardid.h since they are closely
related and will likely have common code.

BUG=chrome-os-partner:31728
BRANCH=none
TEST=tested w/ follow-up CLs on pinky

Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Change-Id: Idd38ec5b6af16e87dfff2e3750c18fdaea604400
Original-Reviewed-on: https://chromium-review.googlesource.com/227248
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>

(cherry picked from commit 77dd5fb9347b53bb8a64ad22341257fb3be0c106)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: Ibe7044cafe0a61214ac2d7fea5f7255b2c11829b
Reviewed-on: http://review.coreboot.org/9438
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
2015-04-10 16:47:44 +02:00
David Hendricks 21db62eb0e gpio: add a function to read GPIO array as base-2 value
This adds gpio_base2_value() which reads an array of 2-state
GPIOs and returns a base-2 value, where gpio[0] represents the
least significant bit.

BUG=none
BRANCH=none
TEST=tested with follow-up patches for pinky

Change-Id: I0d6bfac369da0d68079a38de0988c7b59d269a97
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 27873b7a9ea237d13f0cbafd10033a8d0f821cbe
Original-Change-Id: Ia7ffc16eb60e93413c0812573b9cf0999b92828e
Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/228323
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/9412
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2015-04-10 11:59:30 +02:00
David Hendricks 3fc6368e1c gpio: cosmetic changes to tristate_gpios.c
This patch makes a few cosmetic changes:
- Rename tristate_gpios.c to gpio.c since it will soon be used for
  binary GPIOs as well.
- Rename gpio_get_tristates() to gpio_base3_value() - The binary
  version will be called gpio_base2_value().
- Updates call sites.
- Change the variable name "id" to something more generic.

BUG=none
BRANCH=none
TEST=compiled for veyron_pinky and storm

Change-Id: Iab7e32f4e9d70853f782695cfe6842accff1df64
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c47d0f33ea1a6e9515211b834009cf47a171953f
Original-Change-Id: I36d88c67cb118efd1730278691dc3e4ecb6055ee
Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/228324
Reviewed-on: http://review.coreboot.org/9411
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-10 11:59:25 +02:00
Julius Werner 886d29bcd8 gpio: Remove non-ternary tristate mode, make ternaries easier
The function to read board IDs from tristate GPIOs currently supports
two output modes: a normal base-3 integer, or a custom format where
every two bits represent one tristate pin. Each board decides which
representation to use on its own, which is inconsistent and provides
another possible gotcha to trip over when reading unfamiliar code.

The two-bits-per-pin format creates the additional problem that a
complete list of IDs (such as some boards use to build board-ID tables)
necessarily has "holes" in them (since 0b11 does not correspond to a
possible pin state), which makes them extremely tricky to write, read
and expand. It's also very unintuitive in my opinion, although it was
intended to make it easier to read individual pin states from a hex
representation.

This patch switches all boards over to base-3 and removes the other
format to improve consistency. The tristate reading function will just
print the pin states as they are read to make it easier to debug them,
and we add a new BASE3() macro that can generate ternary numbers from
pin states. Also change the order of all static initializers of board ID
pin lists to write the most significant bit first, hoping that this can
help clear up confusion about the endianness of the pins.

CQ-DEPEND=CL:219902
BUG=None
TEST=Booted on a Nyan_Blaze (with board ID 1, unfortunately the only one
I have). Compiled on Daisy, Peach_Pit, Nyan, Nyan_Big, Nyan_Blaze, Rush,
Rush_Ryu, Storm, Veryon_Pinky and Falco for good measure.

Change-Id: I3ce5a0829f260db7d7df77e6788c2c6d13901b8f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 2fa9545ac431c9af111ee4444d593ee4cf49554d
Original-Change-Id: I6133cdaf01ed6590ae07e88d9e85a33dc013211a
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219901
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9401
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-10 11:57:44 +02:00
Julius Werner eaa9c4596b gpio: Extend common GPIO header, simplify function names
We've had gpiolib.h which defines a few common GPIO access functions for
a while, but it wasn't really complete. This patch adds the missing
gpio_output() function, and also renames the unwieldy
gpio_get_in_value() and gpio_set_out_value() to the much easier to
handle gpio_get() and gpio_set(). The header is renamed to the simpler
gpio.h while we're at it (there was never really anything "lib" about
it, and it was presumably just chosen due to the IPQ806x include/
conflict problem that is now resolved).

It also moves the definition of gpio_t into SoC-specific code, so that
different implementations are free to encode their platform-specific
GPIO parameters in those 4 bytes in the most convenient way (such as the
rk3288 with a bitfield struct). Every SoC intending to use this common
API should supply a <soc/gpio.h> that typedefs gpio_t to a type at most
4 bytes in length. Files accessing the API only need to include <gpio.h>
which may pull in additional things (like a gpio_t creation macro) from
<soc/gpio.h> on its own.

For now the API is still only used on non-x86 SoCs. Whether it makes
sense to expand it to x86 as well should be separately evaluated at a
later point (by someone who understands those systems better). Also,
Exynos retains its old, incompatible GPIO API even though it would be a
prime candidate, because it's currently just not worth the effort.

BUG=None
TEST=Compiled on Daisy, Peach_Pit, Nyan_Blaze, Rush_Ryu, Storm and
Veyron_Pinky.

Change-Id: Ieee77373c2bd13d07ece26fa7f8b08be324842fe
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 9e04902ada56b929e3829f2c3b4aeb618682096e
Original-Change-Id: I6c1e7d1e154d9b02288aabedb397e21e1aadfa15
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/220975
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9400
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-10 11:57:33 +02:00
Vadim Bendebury dd94b5f023 chromeos: move VPD MAC address retrieval function
Retrieval of the MAC address from the VPD is a Chrome OS specific
feature, required just on one platform so far. There is no need to
look for the MAC address in the VPD on all other Chrome OS boards.

BRANCH=storm
BUG=chromium:417117
TEST=with the upcoming patch applied verified that MAC addresses still
     show up in the device tree on storm

Change-Id: If5fd4895bffc758563df7d21f38995f0c8594330
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: fb4906ac559634321a01b4814f338611b9e98b2b
Original-Change-Id: I8e6f8dc38294d3ab11965931be575360fd12b2fc
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/223796
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/9398
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-10 11:57:24 +02:00
Aaron Durbin e5e36306a9 timer: Add generic udelay() implementation
Add GENERIC_UDELAY Kconfig option so that a generic
udelay() implementation is provided utilizing the
monotonic timer. That way each board/chipset doesn't
need to duplicate the same udelay(). Additionally,
assume that GENERIC_UDELAY implies init_timer()
is not required.

BUG=None
BRANCH=None
TEST=Built nyan, ryu, and rambi. May need help testing.

Change-Id: I7f511a2324b5aa5d1b2959f4519be85a6a7360e8
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1a85fbcad778933d13eaef545135abe7e4de46ed
Original-Change-Id: Idd26de19eefc91ee3b0ceddfb1bc2152e19fd8ab
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219719
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9334
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-08 18:35:01 +02:00
Julius Werner 108548a42a armv7: Add fine-grained page table support
This patch adds an mmu_config_range_kb() function, which can set memory
types at the 4KB level by chaining a fine-grained page table to an
existing superpage entry. It is only intended for special cases where
this level of precision is really necessary and therefore comes with a
few practical limitations (the area for each invocation must be confined
within a single superpage, and you are not allowed to remap the same
region with mmu_config_range() again later). Since the fine-grained page
tables need some space, boards intending to use this feature must define
a TTB_SUBTABLES() region in their memlayout.ld.

BUG=chrome-os-partner:32848
TEST=Booted both Veyron_Pinky (normal) and Nyan_Blaze (LPAE), ensured
that they still work. Checksummed the page tables with and without this
patch, confirmed that they end up equal. Hacked in some subtable test
entries, hexdumped all tables and manually confirmed that they look as
expected.

Change-Id: I8c3eb7c2eb9c82e2abc5f2c0dda91f5b2eee7023
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 2f13e60cf5509b9a63fb7b8d84846daf889dc1b7
Original-Change-Id: Iedf7ca435ae337ead85115200d6987fb0d4828d7
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/223781
Reviewed-on: http://review.coreboot.org/9341
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-08 08:48:06 +02:00
Furquan Shaikh 42e23a67ad timestamp: Add bootblock start and end to timestamp constants
BUG=chrome-os-partner:32973
BRANCH=None
TEST=cbmem -t to check proper timestamps on ryu

Change-Id: Ic31c5d9f3e397d90b08fe1c5e152148f4a278b95
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 92469e04c1c52bd60a8a37f017d865d0a838bff5
Original-Change-Id: I95419a6d240c168c8b6a489cac969390ecf6dea0
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/223345
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9340
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-08 08:48:04 +02:00
Julius Werner ec5e5e0db2 New mechanism to define SRAM/memory map with automatic bounds checking
This patch creates a new mechanism to define the static memory layout
(primarily in SRAM) for a given board, superseding the brittle mass of
Kconfigs that we were using before. The core part is a memlayout.ld file
in the mainboard directory (although boards are expected to just include
the SoC default in most cases), which is the primary linker script for
all stages (though not rmodules for now). It uses preprocessor macros
from <memlayout.h> to form a different valid linker script for all
stages while looking like a declarative, boilerplate-free map of memory
addresses to the programmer. Linker asserts will automatically guarantee
that the defined regions cannot overlap. Stages are defined with a
maximum size that will be enforced by the linker. The file serves to
both define and document the memory layout, so that the documentation
cannot go missing or out of date.

The mechanism is implemented for all boards in the ARM, ARM64 and MIPS
architectures, and should be extended onto all systems using SRAM in the
future. The CAR/XIP environment on x86 has very different requirements
and the layout is generally not as static, so it will stay like it is
and be unaffected by this patch (save for aligning some symbol names for
consistency and sharing the new common ramstage linker script include).

BUG=None
TEST=Booted normally and in recovery mode, checked suspend/resume and
the CBMEM console on Falco, Blaze (both normal and vboot2), Pinky and
Pit. Compiled Ryu, Storm and Urara, manually compared the disassemblies
with ToT and looked for red flags.

Change-Id: Ifd2276417f2036cbe9c056f17e42f051bcd20e81
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: f1e2028e7ebceeb2d71ff366150a37564595e614
Original-Change-Id: I005506add4e8fcdb74db6d5e6cb2d4cb1bd3cda5
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/213370
Reviewed-on: http://review.coreboot.org/9283
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Tauner <stefan.tauner@gmx.at>
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-04-06 22:05:01 +02:00
Julius Werner 015f0aea5d Add predefined __ROMSTAGE__ and __RAMSTAGE__ macros
This patch adds the macros __ROMSTAGE__ and __RAMSTAGE__ which get
predefined in their respective stages by make, so that we have one
specific macro for every stage. It also renames __BOOT_BLOCK__ and
__VER_STAGE__ to __BOOTBLOCK__ and __VERSTAGE__ for consistency.

This change is intended to provide finer control and clearer
communication of intent after we added a new (optional) stage that falls
under __PRE_RAM__, and will hopefully provide some robustness for the
future (we don't want to end up always checking for romstage with #if
defined(__PRE_RAM__) && !defined(__BOOT_BLOCK__) &&
!defined(__VER_STAGE__) && !defined(__YET_ANOTHER_PRERAM_STAGE__)). The
__PRE_RAM__ macro stays as it is since many features do in fact need to
differentiate on whether RAM is available. (Some also depend on whether
RAM is available at the end of a stage, in which case #if
!defined(__PRE_RAM__) || defined(__ROMSTAGE__) should now be
authoritative.)

It's unfeasable to change all existing occurences of __PRE_RAM__ that
would be better described with __ROMSTAGE__, so this patch only
demonstratively changes a few obvious ones in core code.

BUG=None
TEST=None (tested together with dependent patch).

Change-Id: I6a06d0f42c27a2feeb778a4acd35dd14bb53f744
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: a4ad042746c1d3a7a3bfda422d26e0d3b9f9ae42
Original-Change-Id: I6a1f25f7077328a8b5201a79b18fc4c2e22d0b06
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219172
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9304
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2015-04-06 19:15:37 +02:00
Patrick Georgi 56b830938a build system: rename __BOOT_BLOCK__ and __VER_STAGE__
Drop the inner underscore for consistency. Follows the
commit stated below.

Change-Id: I75cde6e2cd55d2c0fbb5a2d125c359d91e14cf6d
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Based-on-Change-Id: I6a1f25f7077328a8b5201a79b18fc4c2e22d0b06
Based-on-Signed-off-by: Julius Werner <jwerner@chromium.org>
Based-on-Reviewed-on: https://chromium-review.googlesource.com/219172
Reviewed-on: http://review.coreboot.org/9290
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
2015-04-04 20:07:18 +02:00
Aaron Durbin 46826c36bf stddef: Add KHz, MHz and GHz constants
This patch adds some simple constants to more easily write and do math
with frequencies, analogous to the existing KiB, MiB and GiB constants
for sizes.

BUG=None
TEST=Compiled Veyron_Pinky.

Original-Change-Id: I4a1927fd423eb96d3f76f7e44b451192038b02e0
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/221800
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>

(cherry picked from commit 41bb8026818b4381d4a6d43d2d433c207c3971bc)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I1e708b0aa53533c9ab999793ca2273c6dc68b5f6
Reviewed-on: http://review.coreboot.org/9253
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-04 15:01:51 +02:00
Lee Leahy 9f5a5c5323 Add table driven way to add platform specific reg_script routines
Extend lib/reg_script.c to use a platform table to declare
additional platform specific register access routine functions.
REG_SCRIPT_TYPE_PLATFORM_BASE is the starting value for platform
specific register types.  Additional register access types may be
defined above this value.  The type and access routines are placed
into reg_script_type_table.

The Baytrail type value for IOSF was left the enumeration since it
was already defined and is being used for Braswell.

BRANCH=none
BUG=None
TEST=Use the following steps to test:
1.  Build for a Baytrail platform
2.  Build for the Samus platform
3.  Add a platform_bus_table routine to a platform which returns the
    address of an array of reg_script_bus_entry structures and the
    number of entries in the array.

Change-Id: Ic99d345c4b067c52b4e9c47e59ed4472a05bc1a5
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 2d9fecf4287dff6311a81d818603212248f1a248
Original-Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/215645
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Change-Id: I7cd37abc5a08cadb3166d4048f65b919b86ab5db
Original-Reviewed-on: https://chromium-review.googlesource.com/229612
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/9279
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-04 12:40:29 +02:00
Aaron Durbin 460703bbb4 rmodule: use struct prog while loading rmodules
The rmod_stage_load structure contained the same fields
as struct prog. In order to more closely integrate with the
rest of program loading use struct prog.

Change-Id: Ib7f45d0b3573e6d518864deacc4002802b11aa9c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9143
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-03 14:53:35 +02:00
Aaron Durbin ce9efe061a program loading: unify on struct prog
Instead of having different structures for loading
ramstage and payload align to using struct prog.
This also removes arch_payload_run() in favor of
the prog_run() interface.

Change-Id: I31483096094eacc713a7433811cd69cc5621c43e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8849
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-03 14:53:11 +02:00
Aaron Durbin b3847e6424 program loading: add prog_run() function
The prog_run() function abstracts away what is required
for running a given program. Within it, there are 2
calls: 1. platform_prog_run() and 2. arch_prog_run().
The platform_prog_run() allows for a chipset to intercept
a program that will be run. This allows for CPU switching
as currently needed in t124 and t132.

Change-Id: I22a5dd5bfb1018e7e46475e47ac993a0941e2a8c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8846
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-03 14:52:47 +02:00
Aaron Durbin 3948e5392b program loading: introduce struct prog
The struct prog serves as way to consolidate program
loading. This abstraction can be used to perform more
complicated execution paths such as running a program
on a separate CPU after it has been loaded. Currently
t124 and t132 need to do that in the boot path. Follow
on patches will allow the platform to decide how to
execute a particular program.

Note: the vboot path is largely untouched because it's
already broken in the coreboot.org tree. After getting
all the necessary patches pushed then vboot will be
fixed.

Change-Id: Ic6e6fe28c5660fb41edee5fd8661eaf58222f883
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8839
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-03 14:51:51 +02:00
Vadim Bendebury 274ef4186f vpd: retrieve mac addresses and pass them to bootloader
Chrome OS devices firmware usually includes an area called VPD (Vital
Product Data). VPD is a blob of a certain structure, in particular
containing freely defined variable size fields. A field is a tuple of
the field name and field contents.

MAC addresses of the interfaces are stored in VPD as well. Field names
are in the form of 'ethernet_macN', where N is the zero based
interface number.

This patch retrieves the MAC address(es) from the VPD and populates
them in the coreboot table so that they become available to the
bootloader.

BUG=chrome-os-partner:32152, chromium:417117
TEST=with this and other patches in place the storm device tree shows
     up with MAC addresses properly initialized.

Change-Id: I955207b3a644cde100cc4b48e51a2ab9a3cb1ba0
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 1972b9e97b57cc8503c5e4dc496706970ed2ffbe
Original-Change-Id: I12c0d15ca84f60e4824e1056c9be2e81a7ad8e73
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219443
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9207
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-02 17:27:37 +02:00
Vadim Bendebury 86b0c8b480 chromeos: Add WiFi calibration CBMEM entry pointer to coreboot table
This patch adds plumbing necessary to ensure that the CBMEM WiFi
calibration blobs entry, if present, is referenced if the coreboot
table.

BRANCH=storm
BUG=chrome-os-partner:32611
TEST=none - the entry is not yet in the CBMEM

Change-Id: I072f2368b628440b6fe84f310eebc1ab945f809e
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: d0330280369753a6520196425e6dfc7d7bd226a3
Original-Change-Id: I04d52934ad1c5466d0d124b32df5ab17c0f59686
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/225270
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9232
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-02 13:32:04 +02:00
Kane Chen 51bdc47816 smbios: add a family id in smbios type1 family
mosys will use this field to identify system

BRANCH=none
BUG=chromium:359155
TEST=build ok, use dmidecode to check whether data is
     written correctly

Change-Id: I461215c012b6ad712b3f813a3928e90a23bf54f1
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 7adbdab761cd7b4bda0a43e7b1c4070de26f150a
Original-Change-Id: Icfbd4c61fc49a9cb3d3ecd2b622339957963150c
Original-Signed-off-by: Kane Chen <kane.chen@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/217400
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: http://review.coreboot.org/9230
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-02 13:26:05 +02:00
Aaron Durbin a30f7e667c cbfs: correct types used for accessing files
In commit 72a8e5e751 the
Makefile's were updated to use named types for cbfs
file addition. However, the call sites were not checked to
ensure the types matched. Correct all call sites to use the
named types.

Change-Id: Ib9fa693ef517e3196a3f04e9c06db52a9116fee7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9195
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-01 22:51:10 +02:00
Timothy Pearson 620fa5f30f northbridge/amd/amdfam10: Collect DIMM information for ramstage use
1.) Allow MCT information structures to be copied to cbmem.
2.) Retrieve DIMM vendor, model, and serial information.
3.) Allow maximum installable memory to be set via devicetree.

Change-Id: I0aecd2fb69ebad0a784c01d40ce211f6975a3ece
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/9137
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-04-01 21:14:30 +02:00
Aaron Durbin f786652af1 cbfs: add cbfs_serialized.h header file
The serialized format of CBFS is separate from the APIs
used to traverse and read from CBFS. Separate those out
so they can be consumed as a standalone header.

Change-Id: I09f71d9c474ee9f23a62b0062ffa777963d1a4dd
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9125
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-03-31 23:01:39 +02:00
Aaron Durbin 6e76fff969 program loading: provide one cache maintenance callback
Instead of having 2 different functions to call when a program
is loaded provide a single callback with flags parameter. The
previous callbacks for cache management routines did this:

for_each_program_segment:
	arch_program_segment_loaded(start, size);
arch_program_loaded();

Now, use one callback instead:
for_each_program_segment:
	arch_segment_loaded(start, size, SEG_FINAL?);

Change-Id: I3811cba92e3355d172f605e4444f053321b07a2a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8838
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-31 19:42:08 +02:00
Aaron Durbin ebf2ed4621 payload loading: remove passing of struct payload
There's no need to keep track of struct payload within
the boot state machine. It is completely contained within
the payload loader module.

Change-Id: I16fcecf43d7fb41fc311955fdb82eabbd5c96b11
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8836
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-31 19:31:57 +02:00
Aaron Durbin fcfdff84f4 loading: move ramstage cache function declarations
The functions related to caching ramstage were in cbfs.h.
Now that the loading code is separate move those declarations
to the common program_loading.h.

Change-Id: Ib22ef8a9c66e1d2b53388bceb8386baa6302d28b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8835
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-31 19:30:07 +02:00
Aaron Durbin 5b9384c3fc cbfs: remove run_address()
The run_address() function is not used. Remove it.

Change-Id: I96de4cf0a529b08943ff8281cedead642eb415de
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9124
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
2015-03-31 06:58:22 +02:00
Timothy Pearson 4785f2a358 arch/x86/boot/smbios: Rename fill_dimm_manufacturer and make public
Change-Id: Ib85701965337bb6231d8df59d43789dfe8a036d3
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/9136
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-03-29 16:34:07 +02:00
Timothy Pearson 821217b60f arch/x86/boot/smbios: Add additional SMBIOS defines and enums
Change-Id: I337584d1f4ce32094c24478a99418e0775cf9ab5
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/9135
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-03-29 16:33:00 +02:00
Aaron Durbin 5add43574d arm64: add spin table support
There was a hacky and one-off spin table support in tegra132.
Make this support generic for all arm64 chips.

BUG=chrome-os-partner:32082
BRANCH=None
TEST=Ran with and without secure monitor booting smp into the kernel.

Change-Id: I3425ab0c30983d4c74d0aa465dda38bb2c91c83b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 024dc3f3e5262433a56ed14934db837b5feb1748
Original-Change-Id: If12083a9afc3b2be663d36cfeed10f9b74bae3c8
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/218654
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9084
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-28 07:05:13 +01:00
Furquan Shaikh abde3b56ce arm64: Add support for secure monitor
Secure monitor runs at EL3 and is responsible for jumping to the payload at
specified EL and also to manage features like PSCI.
Adding basic implementation of secure monitor as a rmodule. Currently, it just
jumps to the the payload at current EL. Support for switching el and PSCI will
be added as separate patches.

CQ-DEPEND=CL:218300
BUG=chrome-os-partner:30785
BRANCH=None
TEST=Compiles succesfully and secure monitor loads and runs payload on ryu

Change-Id: If0f22299a9bad4e93311154e5546f5bae3f3395c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 5e40a21115aeac1cc3c73922bdc3e42d4cdb7d34
Original-Change-Id: I86d5e93583afac141ff61475bd05c8c82d17d926
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/214371
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9080
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-28 07:05:09 +01:00
Aaron Durbin 27ce094ddf drivers: add GIC support
The GIC is ARM's "Generic Interrupt Controller". This
change essentially implements the rudimentary support
for a GICv2 implementation that routes all interrupts
to Group1. This should also work for GICv1 with security
extensions.

BUG=chrome-os-partner:31945
BRANCH=None
TEST=Built and booted kernel using the code.

Change-Id: I9c9202c1309ca9e711e00d742085a6728552c54b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: d1cd9b6b76035af107b7dc876f90777698162d34
Original-Change-Id: I4c5b84bfe888ac33fa01c8d64a3dffe1b5ddc823
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/217512
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9075
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
2015-03-28 07:05:03 +01:00
Ionela Voinescu 00903e5fc0 cbfs/rmodule: add architecture specific operations at stage load
Two weak functions were added so that architecture specific operations
on each segment of payload or stage can be performed.
Each architecture must define its own operations, otherwise the
behavior will default to do-nothing functions.

This patch has been updated by to fit more in line with
how program loading is currently being done. The API is the
same as the original, but all call sites to stages/payloads
have been updated. This is known to break any archs that use
rmodule loading that needs cache maintenance. That will be fixed
in a forthcoming patch. Also, the vboot paths are left as is
for easier upstreaming of the rest of the vboot patches.

Original-Change-Id: Ie29e7f9027dd430c8b4dde9848fa3413c5dbfbfa
Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/239881
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
(cherry picked from commit c82c21ce87a4c02bd9219548a4226a58e77beef0)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: Ifcee5cd9ac5dbca991556296eb5e170b47b77af7
Reviewed-on: http://review.coreboot.org/8837
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-27 19:35:58 +01:00
Kane Chen 33faac643d smbios: add funtion for smbios type17
Add smbios type 17 which can optionally be implemented
at the platform or mainboard level
In order to create SMBIOS type17, you will need to fill
memory_info data

BUG=None
BRANCH=None
TEST=Compile successfully on rambi and samus
     Boot to chromeOS on samus and rambi

Original-Change-Id: Ie4da89135c879d7a687305d423103fcfcbb96e3f
Original-Signed-off-by: Kane Chen <kane.chen@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/210005
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
(cherry picked from commit 634b899ba41242caa800d7b570f3a339c738db77)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I61d1e8b1d32d43f0011b0f93966d57646ea0eb63
Reviewed-on: http://review.coreboot.org/8955
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-27 09:55:21 +01:00
Aaron Durbin a7a3917d48 timer: remove rela_time type
Current usage doesn't require rela_time. Remove it.

BUG=None
BRANCH=None
TEST=Built and booted.

Change-Id: I25dcc1912f5db903a0523428ed1c0307db088eaa
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 26a13d4c615473407f401af4330199bbfe0dd2b1
Original-Change-Id: I487ea81ffb586110e9a1c3c2629d4af749482177
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219714
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/8896
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-26 08:53:53 +01:00
Daisuke Nojiri 573e21132f fix how to interpret board id read from gpios
nyan blaze fails to boot because tristates of the board id are interpreted in
the reverse order. this change fixes it.

BUG=none
TEST=Booted Blaze to Linux. Built firmware for Storm.
Branch=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

Change-Id: I4ff8a15cf62869cea22931b5255c3a408a778ed2
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 3f59b13d615a8985edf2029d89af05e95aefad33
Original-Change-Id: I6d81092becb60d12e1cd2a92fc2c261da42c60f5
Original-Reviewed-on: https://chromium-review.googlesource.com/211700
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: http://review.coreboot.org/8980
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-26 00:26:50 +01:00
Vadim Bendebury 3760272fb9 Restore name of the function reading tertiary GPIO states
The name was changed due to review comments misunderstanding, it
should be restored to properly convey what the function does.

BUG=chrome-os-partner:30489
TEST=verified that Storm still properly reports board ID

Change-Id: Iba33cf837e137424bfac970b0c9764d26786be9c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c0fff28c6ebf255cb9cf9dfe4c961d7a25bb13ff
Original-Change-Id: I4bd63f29afbfaf9f3e3e78602564eb52f63cc487
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/211413
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8979
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-26 00:26:49 +01:00
Aaron Durbin 12d45b2f8a cbfs: expose init_backing_media()
I broke cbfs loading with commit 358901. As multiple
functions are being reused one needs to ensure there is
always a cbfs media object allocated on the stack and
initialized. Ya for no common writable globals.

TEST=Ran qemu-armv7. CBFS loading works again.

Change-Id: Ibd047af7dcd8575e6203651471079fc2042da282
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8973
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
2015-03-24 22:48:51 +01:00
Daisuke Nojiri 97ea9c0516 vboot2: factory-initialize kernel space in tpm
this change makes coreboot initialize kernel space and backup space in the tpm
when no firmware space is found in the tpm.

BUG=chrome-os-partner:32410
TEST=Forced factory initialization and verified it went through without errors.
BRANCH=None
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

Original-Change-Id: I777e3cb7004870c769163827543c83665d3732b9
Original-Reviewed-on: https://chromium-review.googlesource.com/220412
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: Randall Spangler <rspangler@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit d8c0c407bf0fed60d76441ada7bedd36f6fc3a38)

Change-Id: Icc3779125262b4499e47781991ebbf584abf074a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8885
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-24 15:19:54 +01:00
Daisuke Nojiri 35890170b5 vboot2: load decompressed stage directly to load address
this change allows vboot_load_stage to load a decompressed stage directly to the
load address without using the cbfs cache.

BUG=None
TEST=Booted Nyan Blaze.
BRANCH=None
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

Original-Change-Id: I76530276ff9a87b44f98a33f2c34bd5b2de6888f
Original-Reviewed-on: https://chromium-review.googlesource.com/219028
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit 0ad6f7fee9df31e1b35d4df9a8c373516416a235)

Change-Id: I7abdbdda0cc549894dfb9d599a576bba0a4fadfc
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8883
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-24 15:19:21 +01:00
Daisuke Nojiri 5799097be5 vboot2: read secdata and nvdata
This code ports antirollback module and tpm library from platform/vboot_reference.
names are modified to conform to coreboot's style.

The rollback_index module is split in a bottom half and top half. The top half
contains generic code which hides the underlying storage implementation.
The bottom half implements the storage abstraction.
With this change, the bottom half is moved to coreboot, while the top half stays
in vboot_reference.

TEST=Built with USE=+/-vboot2 for Blaze. Built Samus, Link.
BUG=none
Branch=none
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Change-Id: I77e3ae1a029e09d3cdefe8fd297a3b432bbb9e9e
Original-Reviewed-on: https://chromium-review.googlesource.com/206065
Original-Reviewed-by: Randall Spangler <rspangler@chromium.org>
Original-Reviewed-by: Luigi Semenzato <semenzato@chromium.org>

(cherry picked from commit 6b66140ac979a991237bf1fe25e0a55244a406d0)

Change-Id: Ia3b8f27d6b1c2055e898ce716c4a93782792599c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/8615
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-03-23 19:51:47 +01:00
Vadim Bendebury b0c302fd79 Publish the board ID value in coreboot table, when configured
Board ID value is usually of interest to bootloaders. Instead of
duplicating the board ID discovery code in different bootloaders let's
determine it in coreboot and publish it through coreboot table, when
configured.

BUG=chrome-os-partner:30489
TEST=none yet

Change-Id: Ia1e36b907ac15b0aafce0711f827cb83622e27bb
Original-Change-Id: Iee247c44a1c91dbcedcc9058e8742c75ff951f43
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/210116
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit b2057a02db9391e2085b138eea843e6bb09d3ea2)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/8719
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-23 17:20:13 +01:00
Vadim Bendebury 9c9c336464 Generalize revision number calculation function
Some platforms use tertiary interpretation of GPIO input state to
increase number of distinct values represented by a limited number of
GPIOs. The three states are

- external pull down (interpreted as 0)
- external pull up (1)
- not connected (2)

This has been required by Nvidia devices so far, but Exynos and
Ipq8086 platforms need this too.

This patch moves the function reading the tertiary state into the
library and exposes the necessary GPIO API functions in a new include
file. The functions are still supposed to be provided by platform
specific modules.

The function interpreting the GPIO states has been modified to allow
to interpret the state either as a true tertiary number or as a set
two bit fields.

Since linker garbage collection is not happening when building x86
targets, a new configuration option is being added to include the new
module only when needed.

BUG=chrome-os-partner:30489
TEST=verified that nyan_big still reports proper revision ID.

Change-Id: Ib55122c359629b58288c1022da83e6c63dc2264d
Original-Change-Id: I243c9f43c82bd4a41de2154bbdbd07df0a241046
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/209673
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit c79ef1c545d073eaad69e6c8c629f9656b8c2f3e)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/8717
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-23 17:20:04 +01:00
Kenji Chen 31c6e632cf PCIe: Add L1 Sub-State support.
Enable L1 Sub-State when both root port and endpoint support it.

[pg: keyed the feature to MMCONF_SUPPORT, otherwise boards
without that capability fail to build.]

Change-Id: Id11fc7c73eb865411747eef63f5f901e00a17f84
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 6ac04ad7e2261846e40da297f7fa317ccebda092
Original-BUG=chrome-os-partner:31424
Original-TEST=Build a image and run on Samus proto boards to check if the
settings are applied correctly. I just only have proto boards and
need someone having EVT boards to confirm the settings.
Original-Signed-off-by: Kenji Chen <kenji.chen@intel.com>
Original-Change-Id: Id1b5a52ff0b896f4531c4a6e68e70a2cea8c736a
Original-Reviewed-on: https://chromium-review.googlesource.com/221436
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/8832
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-23 13:11:15 +01:00
Aaron Durbin f65153ef07 timer: add stopwatch construct
There's a lot of places where expiration and running time are
open coded. Allow for those places to be simplified by adding
a stopwatch construct. The stopwatch can have an expiration or
just be used to accumulate time.

BUG=None
TEST=Built and verified API works as expected by using implementation.

Change-Id: Ibd636542b16d8554f1ff4512319a53dce81c97e5
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: bc623a1b36eb08c5877591c4509cd61131c62617
Original-Change-Id: I53604900fea7d46beeccc17f1dc7900d5f28518b
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219492
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/8815
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-21 17:00:17 +01:00
Aaron Durbin d1b0e87179 loaders: add run_romstage() function to bootblock
Provide a common run_romstage() function to be used by
bootblocks to load and run romstage. This is similar to
run_ramstage() in that it provides a single entry point
for doing the necessary work of loading and running romstage.

Change-Id: Ia9643cc091f97a836cf5caefdff8df4a3443df4c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8709
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-20 19:27:47 +01:00
Aaron Durbin 04654a2eff loaders: add program_loading.h header file
Instead of two headers for payload and ramstage loading
combine the 2 files into one. This also allows for easier
refactoring by keeping header files consistent.

Change-Id: I4a6dffb78ad84c78e6e96c886d361413f9b4a17d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8708
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-20 19:25:29 +01:00
Andrew Bresticker 19fd0b09ee stdlib: Add IS_ALIGNED macro
Add a macro to check if a value is aligned.

BUG=chrome-os-partner:36258
BRANCH=none
TEST=Build and boot on Pistachio.

Change-Id: I0680954eb1b1964a631527f96aa0570a32944fa1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 4f1717648e0a4b54217d71f8d0a15d496737d156
Original-Change-Id: Ie0bc1374918a7ffaaec5fea62c1193a42edd416c
Original-Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/246692
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/8757
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-03-20 10:01:22 +01:00
Aaron Durbin 9ef9d85976 bootstate: use structure pointers for scheduling callbacks
The GCC 4.9.2 update showed that the boot_state_init_entry
structures were being padded and assumed to be aligned in to an
increased size. The bootstate scheduler for static entries,
boot_state_schedule_static_entries(), was then calculating the
wrong values within the array. To fix this just use a pointer to
the boot_state_init_entry structure that needs to be scheduled.

In addition to the previous issue noted above, the .bs_init
section was sitting in the read only portion of the image while
the fields within it need to be writable. Also, the
boot_state_schedule_static_entries() was using symbol comparison
to terminate a loop which in C can lead the compiler to always
evaluate the loop at least once since the language spec indicates
no 2 symbols can be the same value.

Change-Id: I6dc5331c2979d508dde3cd5c3332903d40d8048b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8699
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-18 16:41:43 +01:00
Vadim Bendebury f9fb0d9bf3 Use a common boardid.h instead of per board copies
There is no point in duplicating boardid.h per board - they are all
the same. Let's keep a single instance in the common include directory
and let the linker report a problem if one tries using this function
on a board where it is not supported.

BUG=chrome-os-partner:30489
TEST=verified that coreboot builds fine for nyan_big and nyan_blaze.

Original-Change-Id: Ifbe9c2287a1d828d4db74c637d1d02047ac4da25
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/209699
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 589e6415faf18ca6aaf44da343dd33eadc8a53d3)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I8eef89cb822611a0050e5a50fc4b970eebd8d962
Reviewed-on: http://review.coreboot.org/8666
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-13 23:01:54 +01:00
Kyösti Mälkki 48b3dbc748 x86 SMM: Replace weak prototypes with weak function stub
Change-Id: I682617cd2f4310d3e2e2ab6ffec51def28a4779c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7961
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-11 18:15:22 +01:00
Bruce Griffith 006364eedd AMD Bald Eagle: Add northbridge files for new AMD processor
Also fix a typo in a config option for SteppeEagle.

Change-Id: Iad51cc917217aa0eac751dc805c304652d20e066
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/7247
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-03-10 16:43:23 +01:00
Julius Werner dbe0df1992 Add and consistently use wrapper macro for romstage static variables
x86 systems run their romstage as execute-in-place from flash, which
prevents them from having writable data segments. In several code pieces
that get linked into both romstage and ramstage, this has been worked
around by using a local variable and having the 'static' storage class
guarded by #ifndef __PRE_RAM__.

However, x86 is the only architecture using execute-in-place (for now),
so it does not make sense to impose the restriction globally. Rather
than fixing the #ifdef at every occurrence, this should really be
wrapped in a way that makes it easier to modify in a single place. The
chromeos/cros_vpd.c file already had a nice approach for a wrapper
macro, but unfortunately restricted it to one file... this patch moves
it to stddef.h and employs it consistently throughout coreboot.

BRANCH=nyan
BUG=None
TEST=Measured boot time on Nyan_Big before and after, confirmed that it
gained 6ms from caching the FMAP in vboot_loader.c.

Original-Change-Id: Ia53b94ab9c6a303b979db7ff20b79e14bc51f9f8
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/203033
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit c8127e4ac9811517f6147cf019ba6a948cdaa4a5)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I44dacc10214351992b775aca52d6b776a74ee922
Reviewed-on: http://review.coreboot.org/8055
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2015-03-09 22:42:28 +01:00
Stefan Reinauer 408ebe6ad0 console: Fix broken early_print.h include guards
Make compilation fail if this is included in non-romcc compiles.
I am a bit surprised that this ever compiled.

Change-Id: I8dfc1229681819d2381821a0195a89b44dd76b6a
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8420
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-03-09 22:21:31 +01:00
Alexander Couzens 510d1bd3b0 build.h: remove variable for the builduser, -hostname and -domain
They don't contain any useful information and
also block us from having reproducible builds.

Change-Id: Ib03887f6a548230de9f75fb308c73a800e180c48
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: http://review.coreboot.org/8616
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <gaumless@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-09 17:53:16 +01:00
Kane Chen 18cb1340f1 device/pciexp: Add support for PCIe CLK power management
Set PCIe "Enable Clock Power Management", if endpoint supports it.

BUG=chrome-os-partner:31424
BRANCH=none
TEST=build and boot on rambi, check Enable Clock Power Management
     in link control register is set properly

Change-Id: Ie54110d1ef42184cfcf47c9fe4d735960aebe47f
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/220742
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
[Edit commit message.]
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/8447
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-03-09 03:33:13 +01:00
Stefan Reinauer f69a27bcd3 device: drop i915 specific headers from resource allocator includes
src/include/device/ is the place for include files of the resource
allocator. Hence, drop the i915 include file copies and use the ones
supplied with the i915 driver instead. The only remaining user of this
was the Intel Whitetip Mountain 2 reference board, all other occurences
have been previously fixed already.

Change-Id: Ib9f72df4e8f847597508971e9dbf671f49019767
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8140
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-08 16:16:29 +01:00
Kyösti Mälkki 0127c6c808 AMD: Uniformly define MSRs for TOP_MEM and TOP_MEM2
Make the build tolerate re-definitions.

Change-Id: Ia7505837c70b1f749262508b26576e95c7865576
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8609
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-07 21:22:20 +01:00
Furquan Shaikh 196ee2b029 coreboot memrange: Two changes for zero size or empty memrange
1) Add check for zero size in memrange.
2) Add public memrange_init_empty function to allow initializing only the
memrange structure without filling in device resources

BUG=None
BRANCH=None
TEST=Compiles and runs succesfully for rush MMU memranges.

Original-Change-Id: I8e4d864cbc9a770cd208f8a9f83f509dc7ace894
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/208957
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 5c42301c2a51a1a2a29ef58012f210d03bd37f94)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I8d63abb15efda74270ef6fa3c0df55c05659595d
Reviewed-on: http://review.coreboot.org/8597
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-03-04 19:55:19 +01:00
Kyösti Mälkki 85756c14e9 devicetree: Drop dummy root_dev ops
This is just dead code.

Should we decide that we want some of these calls made, they would
be implemented in the mainboard context.

Change-Id: I1f097c8da722f3afab9aa1c80b96590c7ca457d5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8532
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-01 21:53:58 +01:00
Kyösti Mälkki 26c664759b AMD K8 fam10: Refactor offset_unitid configuration
Change-Id: I198f2ad321e1a8b6d932f5624b129e312e36a309
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8349
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-02-20 07:04:00 +01:00
Timothy Pearson 033bb4bc8d acpi: Generate valid ACPI processor objects
The existing code generated invalid ACPI processor objects
if the core number was greater than 9.  The first invalid
object instance was autocorrected by Linux, but subsequent
instances conflicted with each other, leading to a failure
to boot if more than 10 CPU cores were installed.

The modified code will function with up to 99 cores.

Change-Id: I62dc0eb61ae2e2b7f7dcf30e9c7de09cd901a81c
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/8422
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-02-16 21:02:30 +01:00
Kevin Paul Herbert bde6d309df x86: Change MMIO addr in readN(addr)/writeN(addr, val) to pointer
On x86, change the type of the address parameter in
read8()/read16/read32()/write8()/write16()/write32() to be a
pointer, instead of unsigned long.

Change-Id: Ic26dd8a72d82828b69be3c04944710681b7bd330
Signed-off-by: Kevin Paul Herbert <kph@meraki.net>
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/7784
Tested-by: build bot (Jenkins)
2015-02-15 08:50:22 +01:00
Kyösti Mälkki 754fac4346 PCI subsystem: Remove AGP bridge type
There is no auto-detection for AGP type and we have no hardware that
selects this. Furthermore, we treat AGP bridges just like PCI bridges,
there is no optimisation for higher bandwidth.

Change-Id: I4fe87c83411643cb9b8d3216f2af07bf098174d3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8367
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-02-10 09:38:32 +01:00
Alexandru Gagniuc b5669ba579 drivers/pc80/mc146818rtc: Reduce superfluous preprocessor use
cmos_init() had layers of preprocessor directives, which resulted in
a complete mess. Refactor it to make use of the IS_ENABLED() macro.
This improves readability significantly.

One of the changes is to remove in inline stub declaration of
(get|set)_option. Although that provided the ability for the compiler
to optimize out code when USE_OPTION_TABLE is not selected, there is
no evidence that such savings are measureable.

Change-Id: I07f00084d809adbb55031b2079f71136ade3028e
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/8306
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-02-06 23:56:04 +01:00
Alexandru Gagniuc a4d784eeab include/types.h: Provide BIT() macro
This macro is controversial for arches where the bits are numbered
MSb first, though we don't support such an arch. We've seen this macro
creep into our tree in different places, so provide it in one place.

Change-Id: I86cd8a16420f34ef31b615aec4e0f7bd3191ca35
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/8280
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2015-02-06 19:25:57 +01:00
Martin Roth 582b2aee0f FSP & CBMEM: Fix broken cbmem CAR transition.
1) Save the pointer to the FSP HOB list to low memory at address 0x614.

This is the same location as CBMEM_RESUME_BACKUP - the two aren't used
in the same platform, so overlapping should be OK.  I didn't see any
documentation that actually said that this location was free to use, and
didn't need to be restored after use in S3 resume, but it looks like
the DOS boot vector gets loaded juat above this location, so it SHOULD
be ok.  The alternative is to copy the memory out and store it in cbmem
until we're ready to restore it.

2) When a request for the pointer to a CAR variable comes in, pass back
the location inside the FSP hob structure.

3) Skip the memcopy of the CAR Data.   The CAR variables do not
get transitioned back into cbmem, but used out of the HOB structure.

4) Remove the BROKEN_CAR_MIGRATE Kconfig option from the FSP platform.

Change-Id: Iaf566dce1b41a3bcb17e4134877f68262b5e113f
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/8196
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-02-06 00:53:13 +01:00
Timothy Pearson c522fc8f38 drivers/xgi/z9s: Port Linux framebuffer initialization to coreboot
Add native XGI Z9s framebuffer support to coreboot
XGI initialization code largely taken from Linux 3.18.5

TEST: Booted KFSN4-DRE with XGI Volari Z9s into SeaBIOS
with SeaVGABIOS enabled.  Text appeared correctly on screen
and interaction with graphical comboot menu was successful.
However, Linux cleared the framebuffer on boot, rendering the
screen useless until Linux loaded its native xgifb driver.

Change-Id: I606a3892849fc578b0c4d74536aec0a0adef3be3
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/8331
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-02-05 17:37:05 +01:00
Kyösti Mälkki 08e39c572f AMD K8: Remove some excessive preprocessor use
Tests on CPUID are valid regardless of revision.

Change-Id: I5a3a01baca2c0ecfb018ca7965994ba74889a2e2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8337
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-02-05 02:20:42 +01:00
Kyösti Mälkki 5fe1fb7a5f cpu/amd (non-AGESA): Load microcode updates from CBFS
Change-Id: Ic67856414ea2fea9a9eb95d72136cb05da9483fa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/4502
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
2015-02-03 04:51:52 +01:00
Alexandru Gagniuc 893b81f79f cpu/amd/model_10xxx: Remove UPDATE_CPU_MICROCODE option
This option is now deperecated by loading microcode updates from cbfs.
Remove this option in anticipation of implementing CBFS loading for
AMD cpus. Removing it beforehand results in less patch overhead.

Change-Id: Ibdef7843db686734e2b6b1568692720fb543b240
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/8322
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
2015-02-03 04:51:43 +01:00
Kyösti Mälkki 9664345586 devicetree: Search PnP device node from the tree by path
Copied from device_util.c with added ROMSTAGE_CONST.

Change-Id: If872631ed96a79b9a0b15e09382d6f81098c8db3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8297
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-01-30 16:58:27 +01:00
Kyösti Mälkki ae98e83eb2 CBMEM: Always use DYNAMIC_CBMEM
Drop the implementation of statically allocated high memory
region for CBMEM. There is no longer the need to explicitly
select DYNAMIC_CBMEM, it is the only remaining choice.

Change-Id: Iadf6f27a134e05daa1038646d0b4e0b8f9f0587a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7851
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-01-27 22:54:32 +01:00
Kyösti Mälkki 2fb6b40ed0 CBMEM: Support DYNAMIC_CBMEM with LATE_CBMEM_INIT
We can now create CBMEM with dynamic allocation even if CBMEM
location is resolved late in ramstage.

Change-Id: I8529ccbcd4a0e567ebe0a46232ac5d16476e81a8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7861
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
2015-01-27 22:50:14 +01:00
Kyösti Mälkki f1e3c763b3 CBMEM: Do not use get_top_of_ram() with DYNAMIC_CBMEM
The name was always obscure and confusing. Instead define cbmem_top()
directly in the chipset code for x86 like on ARMs.

TODO: Check TSEG alignment, it used for MTRR programming.

Change-Id: Ibbe5f05ab9c7d87d09caa673766cd17d192cd045
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7888
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-01-27 22:48:06 +01:00
Kyösti Mälkki 8659e4072e CBMEM console: Fix and enhance pre-RAM support
Use the value of CONSOLE_PRERAM_BUFFER_SIZE to determine if we can
do CBMEM console in bootblock and romstage. Kconfig forces it to zero
if _BASE is unset or we cannot do CAR migration on x86.

Add CBMEM console to bootblock, except for x86. Only one of bootblock
and romstage clears the pre-RAM buffer.

To start with empty console log on S3 wakeup, ramstage now clears
previous contents of CBMEM buffer if there was no pre-RAM buffer.

Unify Kconfig variable naming.

TODO: ARM configurations do not define PRERAM_BUFFER_BASE values.

Change-Id: I70d82da629529dbfd7bc9491223abd703cbc0115
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7862
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-01-27 22:44:17 +01:00
Kyösti Mälkki 823edda98e CBMEM: Implement cbmem_run_init_hooks() stub
Until we completely can unify early_variables, use these to
handle CBMEM update hooks for both romstage and ramstage.

For x86, CAR_MIGRATE serves the purpose of romstage hooks.

Change-Id: I100ebc0e35e1b7091b4f287ca37f539fd7c9fa7a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7876
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
2015-01-27 22:41:23 +01:00
Daisuke Nojiri efb5cde87f vboot2: copy tlcl from vboot_reference as a preparation for vboot2 integration
vboot2 abtracts tpm storage as some 'secure' space. Thus, it's firmware's
responsibility to handle vboot specific operations with tpm. This CL just copies
related files from vboot_reference so that we can see how code was modified in
the next CL. Note rollback_index.c/h were renamed to antirollback.c/h.

TEST=none
BUG=none
Branch=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

Original-Change-Id: I1792a622058f70a8fcd3c4037547539ad2870420
Original-Reviewed-on: https://chromium-review.googlesource.com/206462
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-by: Randall Spangler <rspangler@chromium.org>
(cherry picked from commit 2ae188b29242bf09c5e79e31f98b330a30bf7b93)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I5fa5a636003e8472127194e961fea4309489b1d9
Reviewed-on: http://review.coreboot.org/8164
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2015-01-27 01:43:57 +01:00
Daisuke Nojiri bcc1d422a2 vboot2: implement select_firmware for pre-romstage verification
This patch has a basic structure of vboot2 integration. It supports only Nyans,
which have bootblock architecture and romstage architecture are
compatible from linker's perspective.

TEST=Built with VBOOT2_VERIFY_FIRMWARE on/off. Booted Nyan Blaze.
BUG=None
BRANCH=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>

Original-Change-Id: I4bbd4d0452604943b376bef20ea8a258820810aa
Original-Reviewed-on: https://chromium-review.googlesource.com/204522
Original-Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit a6bce0cbed34def60386f3d9aece59e739740c58)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I63ddfbf463c8a83120828ec8ab994f8146f90001
Reviewed-on: http://review.coreboot.org/8160
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2015-01-27 01:43:01 +01:00
Stefan Reinauer 4417deb76f Move container_of() macro to stddef.h
It's not a SPI related macro, hence move it to stddef.h where
other similar macros live.

Change-Id: I1008894af7a272f1bc36d3ae6cee3881132b6ba9
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8109
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-01-14 21:23:29 +01:00
Aaron Durbin b3e0202fd4 cbfs: add cbfs_read()
Allow for reading from cbfs media without having a handle
to a non-CBFS_DEFAULT_MEDIA cbfs_media. In conjunction with
cbfs_locate_file() one can locate and cbfs_read() a file
without bringing the entire file through a potentially
temporary buffer (non-memory-mappable cbfs media platforms).

BUG=chrome-os-partner:29922
BRANCH=None
TEST=Built.

Original-Change-Id: Ib5d965334bce1267650fc23c9e9f496675cf8450
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/205991
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 85200f28863e5ea8888322f5787dc6de9a2999f0)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I25e3221beefd0155305ad63da6be9f47e756f7d0
Reviewed-on: http://review.coreboot.org/8181
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
2015-01-13 21:30:14 +01:00
Aaron Durbin b312b7f466 cbfs: add cbfs_locate_file()
cbfs_locate_file() can be used to locate the data within the
cbfs file. Based on the offset and length of the file it can
then be read into any address without bringing the contents
into another buffer (platforms without memory-mapped access
to entire contents of cbfs at once).

BUG=chrome-os-partner:29922
BRANCH=None
TEST=Built and booted rush into romstage (stage load still works).

Original-Change-Id: I2932f66478c74511ec1c876b09794d9a22a526b3
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/206000
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 56c958facd379ca0eeebe1b689e3b80d5e692699)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I0c4964132af615a069258c0eb37153bd84fbbfae
Reviewed-on: http://review.coreboot.org/8180
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2015-01-13 21:29:53 +01:00
David Hendricks 560c643e32 Primitive memory test
This adds a generic primitive memory test. We should look into
using tests in src/lib/ramtest.c, but they seem to rely too heavily
on x86 asm and this test has been useful on multiple ARM platforms.

BUG=none
BRANCH=none
TEST=builds and runs on nyan
Signed-off-by: David Hendricks <dhendrix@chromium.org>

Original-Change-Id: Ia0fb4e12bc59bf708be13faf63c346b531eb3aed
Original-Reviewed-on: https://chromium-review.googlesource.com/186309
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Queue: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit e7625c15415eaf6053ce32b67d9d6ab18d776f5f)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Conflicts:
	src/lib/Makefile.inc

Change-Id: I34e7aedfd167199fd5db4cd4a766b2b80ddda79b
Reviewed-on: http://review.coreboot.org/8150
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2015-01-09 16:50:55 +01:00
Stefan Reinauer d6865222c8 misc: Drop print_ implementation from non-romcc boards
Because we had no stack on romcc boards, we had a separate, not as
powerful clone of printk: print_*.

Back in the day, like more than half a decade ago, we migrated a lot
of boards to printk, but we never cleaned up the existing code to be
consistent. Instead, we worked around the problem with a very messy
console.h (nowadays the mess is hidden in romstage_console.c and
early_print.h)

This patch cleans up the generic code pieces to use printk() on all
non-ROMCC boards.

Our two remaining ROMCC boards are fixed up in this commit:
bifferos/bifferboard and dmp/vortex86ex.

Change-Id: I16676eeabe5c892c8e3c9f3c0cd3bae2e8fd74b6
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8115
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Andrew Wu <arw@dmp.com.tw>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-01-09 06:12:22 +01:00
Martin Roth 2507820bd9 src/include: Doxygen fixes
- Join doxygen file command with the file description
- Give extended file location so doxygen knows which early_sbmus.h
the file is.  (I don't get this either, but it fixes the warning)

Change-Id: Ia91fb1ac1e9687e1a5a5cb5234696b3c24d4cd24
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/8174
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-01-09 06:04:55 +01:00
Stefan Reinauer 199b581f5c Drop duplicate API from spi_flash.h
This convenience API was never used.

Change-Id: If2a99967e7f8c02e9029f7766aeef1e1a1f3dd16
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8108
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-01-09 05:32:36 +01:00
Stefan Reinauer 5491ca23fc cpu: Drop print_ implementation from non-romcc boards
Because we had no stack on romcc boards, we had a separate, not as
powerful clone of printk: print_*. Back in the day, like more than
half a decade ago, we migrated a lot of boards to printk, but we never
cleaned up the existing code to be consistent. instead, we worked around
the problem with a very messy console.h (nowadays the mess is hidden in
romstage_console.c and early_print.h)
This patch cleans up the cpu code to use printk() on all non-ROMCC
boards.

Change-Id: I233c53300f9a74bce4b828fc4074501a77f7b593
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8114
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
2015-01-06 20:16:20 +01:00
Kyösti Mälkki 9b29aad526 Revert "Re-factor 'to_flash_offset()' into 'spi_flash.h'"
This reverts commit 9270553fff.

Change-Id: I195f721ce7a18aac6c1aa6f4e0f9284455d531b0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8138
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2015-01-06 11:19:28 +01:00
Martin Roth 5f066b29ce doxygen fixes: change @var to @param var
These files were trying to document the parameters, but didn't have
the syntax quite right.  Change the comments from @varname to
@param varname as required by doxygen.

Change-Id: I63662094d3f1686e3e35b61925b580eb06e72e28
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/8100
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-01-06 06:33:25 +01:00
Edward O'Callaghan 9270553fff Re-factor 'to_flash_offset()' into 'spi_flash.h'
Re-factor to_flash_offset() into 'spi_flash.h' header. Motivated by
Clang complaining that the function 'to_flash_offset' is unused.

Change-Id: Ic75fd2fb4edc5e434c199ebd10c7384d197e0c63
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7519
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-01-06 04:56:14 +01:00
Stefan Reinauer 3a6550d989 timestamps: Switch from tsc_t to uint64_t
Cherry-pick from chromium and adjusted for added boards
and changed directory layout for arch/arm.

Timestamp implementation for ARMv7

Abstract the use of rdtsc() and make the timestamps
uint64_t in the generic code.

The ARM implementation uses the monotonic timer.

Original-Signed-off-by: Stefan Reinauer <reinauer@google.com>

BRANCH=none
BUG=chrome-os-partner:18637
TEST=See cbmem print timestamps

Original-Change-Id: Id377ba570094c44e6895ae75f8d6578c8865ea62
Original-Reviewed-on: https://gerrit.chromium.org/gerrit/63793
(cherry-picked from commit cc1a75e059020a39146e25b9198b0d58aa03924c)

Change-Id: Ic51fb78ddd05ba81906d9c3b35043fa14fbbed75
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8020
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-01-05 22:21:49 +01:00
Martin Roth 24e2e951b9 atomic.h: Fix doxygen errors
- @v & @i need to be @param v & @param i
- add the @file command

Change-Id: Ib4fb609629bc2dfcf1869bdf7a4d4cd9fea283cc
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/8075
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
2015-01-04 20:03:28 +01:00
Kyösti Mälkki bae775a4f4 arch/x86: Declare GDT symbols and move_gdt()
We relocate GDT to CBMEM, this can be done late in ramstage.
Note: We currently do this for BSP CPU only.

Change-Id: I626faaf22f846433f25ca2253d6a2a5230f50b6b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7858
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-31 09:51:50 +01:00
Sheng-Liang Song 1d6560fc60 chromeos: Unconditionally clear the EC recovery request
Add the empty weak function clear_recovery_mode_switch().

Problem:
If GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC is set,
the following will happen:

1. Boot device in recovery mode with Esc + F3 + Pwr.
2. Turn device off with Pwr button.
3. Turn device on with Pwr button.

Device still boots to recovery screen with
recovery_reason:0x02 recovery button pressed.

If GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC isn't set, turning the
device off and on again  with the Pwr button does a normal boot.

Solution:
Unconditionally clear the recovery flag.

BUG=chromium:279607
BRANCH=TOT
TEST=Compile OK.

Original-Change-Id: Ie1e3251a6db12e75e385220e9d3791078393b1bf
Original-Signed-off-by: Sheng-Liang Song <ssl@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/197780
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Randall Spangler <rspangler@chromium.org>
Original-Commit-Queue: Sheng-liang Song <ssl@google.com>
Original-Tested-by: Sheng-liang Song <ssl@google.com>
(cherry picked from commit 18908bb64cef34ca41812814817ef887961bed34)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I71ca9f3ea8d816c865375ec66a0603ca211f23ae
Reviewed-on: http://review.coreboot.org/7895
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
2014-12-30 23:30:52 +01:00
Duncan Laurie 4397aa1347 vboot: Add a new post code for TPM failure
If the kernel does not properly handle the TPM and send it a
TPM_SaveState command before suspend then it will not be in
the correct state on resume.  In order to easily detect this
case add a new post code for TPM failure and use it in the
vboot resume path.

BUG=chromium:371105
TEST=Build and boot on wtm2.

Original-Change-Id: I412520b521387a8e18ad1c6f5a64b39cdd5c88ec
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/199371
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit ff2f0dc56c1a783295710f81567af02729fe1da2)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I5baf894fd72922acd79d191e5485ae8ef7e0d559
Reviewed-on: http://review.coreboot.org/7936
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-12-30 22:13:30 +01:00
Gabe Black 03abaee219 drivers/pc80/mc146818rtc: Assume we always have ALTCENTURY
This patch has a rather twisted history. It was originally split off
from a chromium patch, which moved ALTCENTURY to Kconfig. However,
since we have no user without ALTCENTURY, we've agreed that the best
way to proceed is to eliminate the non-ALTCENTURY case entirely.

The old commit message and identifiers are kept below for reference:

The availability of "ALTCENTURY" is now set through a kconfig
variable so it can be available to the RTC driver without having to have a
specialized interface.

BUG=None
TEST=Built and booted on Link with the event log code modified to use the RTC
interface. Verified that the event times were accurate.
BRANCH=nyan

Original-Change-Id: Ifa807898e583254e57167fd44932ea86627a02ee
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/197795
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>

This is the second half the following patch.
(cherry picked from commit 9e0fd75142d29afe34f6c6b9ce0099f478ca5a93)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I8e871f31c3d4be7676abf9454ca90808d1ddca03
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/7987
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
2014-12-30 22:10:41 +01:00
Julius Werner 37d7ac8b5b i2c: Add software_i2c driver for I2C debugging and emulation
This patch adds I2C emulation in software through raw toggling of the
SDA/SCL lines. Platforms need to provide bindings to toggle their
respective I2C busses for this to work (e.g. by pinmuxing them as GPIOs,
currently only enabled for Tegra).

This is mostly useful as a debugging feature, to drive unusual states on
a bus and closely monitor the device output without the need of a bus
analyzer. It provides a few functions to "wedge" an I2C bus by aborting
a transaction at certain points, which can be used to test if a system
can correctly recover from an ill-timed reboot. However, it can also
dynamically replace the existing I2C transfer functions and drive
some/all I2C transfers on the system, which might be useful if a driver
for the actual I2C controller hardware is not (yet) available.

Based on original code by Doug Anderson <dianders@chromium.org> and
Hung-ying Tyan <tyanh@chromium.org> for the ChromeOS embedded
controller project.

BRANCH=None
BUG=chrome-os-partner:28323
TEST=Spread tegra_software_i2c_init()/tegra_software_i2c_disable()
through the code and see that everything still works.

Original-Change-Id: I9ee7ccbd1efb38206669a35d0c3318af16f8be63
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/198791
Original-Reviewed-by: Doug Anderson <dianders@chromium.org>
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit 8f71503dbbd74c5298e90e2163b67d4efe3e89db)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: Id6c5f75bb5baaabd62b6b1fc26c2c71d9f1ce682
Reviewed-on: http://review.coreboot.org/7947
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2014-12-30 22:07:42 +01:00