Commit Graph

1842 Commits

Author SHA1 Message Date
Shawn Nematbakhsh
3c4c83b8c3 version: Store image size data in version struct
Store our image size (known at build time) in our version struct (now
renamed to image_data). This will allow us to more efficiently determine
the size of an image in a follow-up CL.

Note that compatibility is broken for old ROs that do not include this
CL.

BUG=chromium:577915
TEST=Verify on kevin + lars + lars_pd that stored image size matches
output of system_get_image_used() for both RO and RW images.
BRANCH=None

Change-Id: I7b8dc3ac8cf2df3184d0701a0e0ec8032de8d81b
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/450858
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-03-16 00:11:41 -07:00
Duncan Laurie
35387474a1 led: Add options for left and right led
Add LED types for left and right so they can be addressed
properly with ectool.

BUG=b:36150361
BRANCH=none
TEST=manual testing of 'ectool led <left|right> <color>' behavior

Change-Id: Iea25cc69db2d35416e787dcb5a324d2e2cf5d3a6
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/453126
Reviewed-by: Scott Collyer <scollyer@chromium.org>
2017-03-13 19:58:51 -07:00
Vincent Palatin
03b5e1bbb9 common: add feature bit for fingerprint support
Add a new 'feature' bit to allow the host to auto-detect a FP MCU.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=b:35648259
TEST=manual, on Eve, look at the features bit on the kernel interface.

Change-Id: If21320bb29d58f0a6dfadba03d8892e4183e5430
Reviewed-on: https://chromium-review.googlesource.com/452341
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2017-03-13 17:53:58 -07:00
Vincent Palatin
23ea0c9fa3 spi: extend spi master API on STM32
Extend the SPI master API to be able to do fancier transactions:
- allow to read the incoming bits while transmitting.
If SPI_READBACK_ALL is set in 'rxlen' when calling spi_transaction(),
then the received data during transmission is recorded in rxdata buffer
and the function assumes that the real 'rxlen' is equal to 'txlen'.
- add spi_transaction_wait() which is similar to spi_transaction_flush()
but without de-asserting the chip select, so we can chain several
transfers in a single transaction.

Implement them for STM32.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=b:35648259
TEST=on Eve, use the FP sensor with the passthru.

Change-Id: Iebff617acd3230277d36a4f565766b7748721a1d
Reviewed-on: https://chromium-review.googlesource.com/452898
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
2017-03-13 17:53:58 -07:00
Jeff Andersen
0fd0dfe0e7 Include "config.h" in include/watchdog.h.
Without this include, the `watchdog_reload()` function will be compiled
as a noop unless "config.h" is included before "watchdog.h" in whatever
compilation unit requires watchdog functionality.

BUG=none
BRANCH=none
TEST=make buildall -j

Change-Id: I311019753f6d61890be1e475664bd528e5250729
Reviewed-on: https://chromium-review.googlesource.com/449694
Commit-Ready: Jeff Andersen <jeffandersen@google.com>
Tested-by: Jeff Andersen <jeffandersen@google.com>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-03-10 19:52:31 -08:00
Duncan Laurie
fa1a7c49f7 battery: Allow BATTERY_LEVEL_NEAR_FULL to be defined by board
Allow the board to override the hardcoded 97% value for reporting to
the host (and controlling LED behavior) when the battery is "near full".

When enabling "discharge on ac" with a full battery the battery stops
taking a charge until it reaches ~94% SOC (the actual value is not set
but rather comes from a smart battery status bit) but the user will see
the device as discharging between 97% and 94%.

The host side view can be worked around with a powerd preference.
The LED behavior is all inside the EC, so you end up with the LED showing
discharging when it should not.

If we allow the board to override this to 94% then the LED and host
behavior is consistent.

BUG=b:36024657
BRANCH=none
TEST=make -j buildall

Change-Id: Ie5ab8e41b87101e201073276bf441e25be7daca4
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/450949
Reviewed-by: Scott Collyer <scollyer@chromium.org>
2017-03-09 01:09:35 -08:00
Nicolas Boichat
3898267abb chip/stm32/usb: Add support for USB SET_FEATURE control requests
This is required so that the kernel can enable/disable remote wake-up
capabilities, and in particular for the kernel to enable autosuspend.

Also, properly implement GET_STATUS.

BRANCH=none
BUG=b:35579996
TEST=echo auto > /sys/bus/usb/drivers/usb/X-Y/power/control, device
     autosuspends after 2 seconds, and wakes on keypress.
     Note that this introduces other bugs, where keys are missing,
     repeated, see b/35775048.

Change-Id: I7ddd257ac3877d27fb2da813f20583a614a0169b
Reviewed-on: https://chromium-review.googlesource.com/450826
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-03-08 03:13:19 -08:00
Daisuke Nojiri
ad089de4b0 pdcontrol: Suspend port individually
pdcontrol suspend command will be used to prevent tcpm from putting
the chip into sleep while firmware update is taking place. Currently
the command suspends or resumes port 0. This patch makes the command
apply to ports individually.

pd enable console command now takes a port number:
pd <port> enable/disable.

This patch also replaces CONFIG_USB_PD_COMM_ENABLED with _DISABLED.
When it's defined, PD communication is disabled at startup.

Plankton undefines CONFIG_USB_PD_COMM_ENABLED enable, intending to
disable PD communication at startup. Therefore, this patch defines
CONFIG_USB_PD_COMM_DISABLED in its board.h.

BUG=b:35586859
BRANCH=none
TEST=From AP console:
localhost # /tmp/ectool pdcontrol suspend 1
[600.188013 TCPC p1 suspended!]
> pd 1 state
Port C1 CC1, Dis - Role: SNK-UFP State: SUSPENDED, Flags: 0x0020
localhost # /tmp/ectool pdcontrol resume 1
[678.516613 TCPC p1 resumed!]
> pd 1 state
Port C1 CC1, Ena - Role: SNK-UFP State: DRP_AUTO_TOGGLE, Flags: 0x0020
From ec console:
> pd 1 disable
Port C1 disable
> pd 1 state
Port C1 CC1, Dis - Role: SNK-UFP State: DRP_AUTO_TOGGLE, Flags: 0x0020
> pd 1 enable
Port C1 enabled
> pd 1 state
Port C1 CC1, Ena - Role: SNK-UFP State: DRP_AUTO_TOGGLE, Flags: 0x0020

Change-Id: Ia0cc4904ac52adc4b89de20918968c8df78b9c80
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/447968
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-03-07 14:15:56 -08:00
Vincent Palatin
a1c8d50e9b Add option to adjust compiler optimization on RSA
Using -O3 optimization level rather than -Os results in a large speed-up
for a minor code size increase for the RSA code with our current GCC
toolchain.
Add the CONFIG_RSA_OPTIMIZED option to do it on platforms which are not
too size-constrained.

On cortex-M4 based STM32L432, I'm measuring a 37 to 40% speed increase
(depending on CPU frequency) for a 200 bytes code size delta.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=none
TEST=manual: benchmark RSA2048 with F4 exponent on STM32L432:
         -Os           -O3
@16Mhz 185163 us --> 111942 us
@80Mhz  39286 us -->  24582 us

Change-Id: I8c2e4b757f037f4f645fb73ba0faaaa471b24896
Reviewed-on: https://chromium-review.googlesource.com/445218
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
2017-03-06 04:44:13 -08:00
Daisuke Nojiri
7757a8e872 charger: Add state for discharge + full
When battery is fully charged, Reef starts discharging to protect
battery and starts charging again when charge level goes down
around 95%. To prevent the battery LED from showing blue with the
charger plugged in, this patch adds a new state for discharge +
nearly full. Reef shows a color indicating battery is full if
an external charger is present.

BUG=b:35775017
BRANCH=none
TEST=Fully charge Electro. Plug in OEM charger. LED lights blue.

Change-Id: I4c7c62f2c51c1d39188d1b271331984e89d5d7a3
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/448961
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-03-03 17:11:30 -08:00
Jeff Andersen
9e7fdc239c Include <stdint.h> in include/watchdog.h.
Previously, the int types used in the watchdog_trace() function
signature were not being included properly.

BUG=none
BRANCH=none
TEST=make buildall -j

Change-Id: Ib4666285c314cbdb101e3ba602e4f27540a1346c
Reviewed-on: https://chromium-review.googlesource.com/448345
Commit-Ready: Jeff Andersen <jeffandersen@google.com>
Tested-by: Jeff Andersen <jeffandersen@google.com>
Reviewed-by: Carl Hamilton <carlh@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-03-02 22:02:23 -08:00
Shawn Nematbakhsh
899fba9649 switch: Initialize switch state earlier during HOOK_INIT
The host may ask for our switch state at any time, so do initialization
immediately after lid + power button are initialized.

BUG=chrome-os-partner:63073
BRANCH=gru
TEST=On kevin, verify system boots when EC reset is triggered with lid
open. Verify lid close and power button press still succeed to
power-down from dev screen.

Change-Id: I8e37c02ef4f4d2d7c06beb383cdbda8eea67bc5c
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/444322
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
(cherry picked from commit 106d33cd3a8e4f3356950a3b2b92ea587977b4e7)
Reviewed-on: https://chromium-review.googlesource.com/445276
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
2017-03-02 11:29:07 -08:00
Duncan Laurie
6e157818c1 gpio: Add function to clear pending interrupt
Currently if an interrupt is pending before it is enabled the interrupt
will fire immediately.  In most cases this is fine, but if we want to
use the interrupt to trigger something like waking the AP it should be
sure that it won't immediately fire once enabled.

For example: on the Eve board we have the trackpad interrupt run to the
AP and the EC in order to support wake from Deep S3 (magic AP state that
only the EC can wake it from).  This interrupt is used in S0 by the AP
while ignored by the EC, and then enabled on the transition to S3 in
order to be able to wake.  Since it has been active the interrupt may
be pending in the EC (depending on the chip), which can result in the
interrupt firing immediately and waking the AP.

BUG=chrome-os-partner:62224
BRANCH=none
TEST=This has been functionally tested on npcx only as that is what I
have a use case and system for, the others compile and look right but
have not been directly tested.

Change-Id: I9e0877d99e7f09f4c30bf9861fbad81c12c059ad
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/446962
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-03-01 16:36:24 -08:00
Nicolas Boichat
bc81942462 stm32/usb: Add support for remote wake-up
USB uses a special mode the trigger remote wake-up during host
suspend, by setting the K-state on the data differential pair,
and setting a bit in the USB config descriptor attributes field.

Let's enable that so that hammer can wake up host from S3.

BRANCH=none
BUG=chrome-os-partner:62325
TEST=Connect hammer to chell, put chell in S3. Press a key (or use
     ("kb 3 3 1; kb 3 3 0" in console), or touch trackpad =>
     host wakes.

Change-Id: Ib7b1e9047e01869f07ddd771c9c9bc640eef10d6
Reviewed-on: https://chromium-review.googlesource.com/446240
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-03-01 09:31:27 -08:00
Nicolas Boichat
b8c255484c stm32/usb: Add support for USB suspend
This follows the basics of what is decribed in
RM0091 Reference Manual 30.5.5 Suspend/Resume events .

We call enable/disable_sleep at suspend/resume, to make
sure the EC stays awake when USB is connected and active.

We also call clock_enable/disable_module, which is stubbed on
stm32f0, but can be used on other devices in the family.

This also fixes interrupt handling in usb_interrupt, by only
clearing interrupt bits that were handled instead of resetting
them all, which is racy, and can potentially lead to issues
if reset comes soon after a resume event.

BRANCH=none
BUG=chrome-os-partner:62325
TEST=build and flash hammer, connect to chell, suspend/resume,
     and see that hammer prints USB suspend and USB resume lines.

Change-Id: Ie9d02fd4a114add3ebc98dc9393680bc9a64a522
Reviewed-on: https://chromium-review.googlesource.com/446239
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-03-01 07:25:03 -08:00
Aseda Aboagye
2a7683af41 cr50: Store console lock state in NvMem vars.
This commit enables the use of the nvmem vars module.  The console lock
state is migrated from using the long life scratch register, to nvmem
vars instead which will persist across power on reboots.

BUG=b:35586145
BRANCH=None
TEST=Flash a dev image. Lock the console. Remove all power from the
system.  Power on system and verify that console is still locked.
Unlock the console, remove power from the system, power on the system,
verify that the console is now unlocked.
TEST=Repeat the above test, but using the nvtestvar console command
instead.

Change-Id: I03a2098bb0017cfca59889457a332eafb0e95db6
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/445804
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-02-27 18:50:12 -08:00
Rong Chang
ec98dbfb35 stm32f09x: fix flash protection offset
STM32F091VC has 32 flash protection sectors (31 x 4KB + 1 x 132KB),
which doesn't fit the layout requirement in config_std_internal_flash.h.
This CL hardcodes the layout and flash bank mapping.

BUG=chrome-os-partner:62372
BUG=chromium:694972
TEST=load on elm and manually enable write protect using flashrom
       # flashrom -p ec:dev=0 --wp-enable
     check ec console write protect option bytes, bank 31 is writable
       > rw 0x1ffff808
         read 0x1ffff808 = 0xff00ff00
       > rw 0x1ffff80c
         read 0x1ffff80c = 0x7f80ff00
BRANCH=oak

Change-Id: I23dcf87bfbcd2f37e97a87e94847dce1ea1d343c
Signed-off-by: Rong Chang <rongchang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/446176
2017-02-27 16:56:24 -08:00
Shawn Nematbakhsh
6ba124a81b hostcmd: Remove EC_CMD_VBNV_CONTEXT handler for most boards
Most boards do not keep VBNV storage on the EC, so leave out the host
command handler by default.

BUG=chromium:693210
BRANCH=None
TEST=`make buildall -j`

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: Ia202ec7d73d1804d8430fe7516cc783afd86e89a
Reviewed-on: https://chromium-review.googlesource.com/446716
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2017-02-25 16:34:15 -08:00
Shawn Nematbakhsh
23bc38414a pd: Store PD active state in battery-backed memory
Our previous idea to cut Rd for many reset cases cannot work if cr50
consistently resets the EC by asserting the reset pin shortly after
power-on. Therefore, make a decision based upon whether battery-backed
memory indicates we previously negotiated a PD power contract as a sink.
If we previously did not negotiate a contract, or if power was removed
from the device (causing battery-backed memory to wipe) then we can
assume that we don't have an active power contract.

BUG=chrome-os-partner:62952
BRANCH=reef
TEST=On reef, run "cutoff" on the console, reattach AC, and verify
device successfully wakes. Also verify Rp is dropped on console 'reboot'
and F3 + power from RW.

Change-Id: Ie300b9589cac6be7a69b77678bea6b1b6b25578c
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/443356
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-02-25 14:23:20 -08:00
Nicolas Boichat
2dcfd2446c flash: Add ROLLBACK flash region, that can be protected separately
ROLLBACK region will be used to store rollback information, and
can be protected independently of RW (it can only be protected when
RO is protected, though).

This is only supported on stm32f0 currently.

BRANCH=none
BUG=chrome-os-partner:61671
TEST=on hammer (stm32f072)
     flashinfo => RO+RW not protected
     flashwp true; reboot => only RO protected
     flashwp all; reboot => RO+RW+RB protected
     flashwp noall; reboot => only RO protected
     flashwp rw; reboot => only RO+RW protected
     flashwp rb; reboot => RO+RW+RB protected
     flashwp norb; reboot => RO+RW protected
     flashwp all; reboot => RO+RW+RB protected
     flashwp norw; reboot => RO+RB protected
TEST=on reef, rb/norb commands not available

Change-Id: I45ffc66d91cf3699ecff025e5114c59a73dc8274
Reviewed-on: https://chromium-review.googlesource.com/430519
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-25 08:36:41 -08:00
Shawn Nematbakhsh
f0b564b4a0 system: Add generic bbram read / write routines
Add generic routines to read or write a byte to battery-backed RAM, and
implement vbnvcontext get/set using these routines.

BUG=chrome-os-partner:62952
BRANCH=reef
TEST=On reef, with subsequent commit, run "cutoff" on the console,
reattach AC, and verify device successfully wakes. Also verify Rp is
dropped on console 'reboot' and F3 + power from RW.

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I14691923f2e5198e901b6b5199e92c58c68cd18d
Reviewed-on: https://chromium-review.googlesource.com/444444
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-24 15:23:24 -08:00
Nicolas Boichat
83cf8d0a7a flash: Add EC_FLASH_PROTECT_RW_[AT_BOOT|NOW] flags
The idea of this flag is to be able to protect/unprotect only the
RW portion of the flash. In the (usual) case where ALL=RO+RW, with
no other region, this makes no difference compared to the existing
EC_FLASH_PROTECT_ALL_* flag, and this flag may not be supported.

This is necessary for futher work, where a ROLLBACK region is added,
so that RW/ROLLBACK can be protected/unprotected individually.

Only support for stm32f0 is added, as this is the target for hammer.

BRANCH=none
BUG=chrome-os-partner:61671
TEST=build and flash hammer (stm32f072)
     flashinfo => RO+RW not protected
     flashwp true; reboot => only RO protected
     flashwp all; reboot => RO+RW protected
     flashwp noall; reboot => only RO protected
     flashwp rw/norw not available
TEST=enable CONFIG_FLASH_PROTECT_RW
     build and flash hammer (stm32f072)
     flashinfo => RO+RW not protected
     flashwp true; reboot => only RO protected
     flashwp all; reboot => RO+RW protected
     flashwp noall; reboot => only RO protected
     flashwp rw; reboot => RO+RW protected
     flashwp norw; reboot => only RO protected
TEST=build and flash reef (npcx)
     flashinfo => RO+RW not protected
     flashwp true => RO protected
     flashwp all; flashinfo => all_now displayed
     reboot => RO protected
     flashwp rw/norw not available

Change-Id: Ica6f499cf2e8a9345b08ef52c915655a983ffe3c
Reviewed-on: https://chromium-review.googlesource.com/442265
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-23 19:06:16 -08:00
Vincent Palatin
0d858f1544 curve25519: strip-down, build and test
Keep only the most compact version of the curve25519 code
and remove the remaining unused code for easier compilation.
Do the minimal changes to make it compile in the EC code base,
there should be no real functional changes.

Re-use the wording from BoringSSL include/openssl/curve25519.h for the
header.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:62991
TEST=run x25519 on host (ie 'make run-x25519')
and the STM32L4 target:
make BOARD=eve_fp PROJECT=x25519 TEST_BUILD=y
./util/flash_ec --board=eve_fp --image=build/eve_fp/x25519.bin
execute 'runtest' in the console.

Change-Id: I13dbe453eff39b461effb1b3ffa549afc1749fef
Reviewed-on: https://chromium-review.googlesource.com/444187
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Adam Langley <agl@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-23 16:02:03 -08:00
Vincent Palatin
bff020fc6b util: add constant-time memcmp
Import from vboot_reference the constant-time memcmp implementation
for safer usage in cryptography code.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:62991
TEST=run curve25519 test

Change-Id: I9c4c61e15912c978e13b6cc002af879c8ae8f630
Reviewed-on: https://chromium-review.googlesource.com/446098
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-23 16:02:02 -08:00
Vincent Palatin
4cbf0cc358 stm32: add TRNG support
Add a driver for the STM32 True Random Number Generator.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:62991
TEST=adhoc on STM32L, craft console command and generate/dump
buffers of random numbers.

Change-Id: Ie7ce890cfc36a3b9a277715b17051e3e42fdfc96
Reviewed-on: https://chromium-review.googlesource.com/445777
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2017-02-23 11:36:21 -08:00
Aseda Aboagye
d7303404a5 cr50: Make sure TPM wipe only clears TPM data.
Previously, wiping the TPM would wipe all of NvMem, however, it really
should only clear the TPM's NvMem space.  This commit adds a function to
clear a given NvMem user's space and makes the TPM only clear its space.

BUG=chrome-os-partner:61597
BRANCH=None
TEST=Add code for using nvmem vars, create a test variable, add a user
to snappy, unlock the console, verify that the user is no longer present
on the system and the test nvmem var still exists.
TEST=make -j buildall

Change-Id: Ic98baa5166a1ef9ae76e910b1b9ab100300e947f
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/445803
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-02-23 01:19:07 -08:00
Sam Hurst
fe89f7f5c7 ec:Correct ACPI host commands
All host commands must be 4-digit uppercase hex digits.
The current ACPI host commands are defined as follows:
   #define EC_CMD_ACPI_READ 0x80
   #define EC_CMD_ACPI_WRITE 0x81
   #define EC_CMD_ACPI_BURST_ENABLE 0x82
   #define EC_CMD_ACPI_BURST_DISABLE 0x83
   #define EC_CMD_ACPI_QUERY_EVENT 0x84

BUG=chrome-os-partner:63190
TEST=make -j buildall
    100bd248 R __host_cmd_0x00000x0080
    100bd254 R __host_cmd_0x00000x0081
    100bd260 R __host_cmd_0x00000x0082
    100bd26c R __host_cmd_0x00000x0083
    100bd278 R __host_cmd_0x00000x0084
BRANCH=none

Change-Id: I48ad9c179454eb237018377023bae10a79c7799e
Reviewed-on: https://chromium-review.googlesource.com/445809
Commit-Ready: Sam Hurst <shurst@google.com>
Tested-by: Sam Hurst <shurst@google.com>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-22 18:25:14 -08:00
Nicolas Boichat
30cc21b932 rwsig: Put key/signature at the end of RO/RW sections
Current code puts key at the end of the first half of flash, which
may not match the actual RO section size (e.g., it might be PSTATE,
not RO). This makes sure the key to be at the end of RO section, and
signature at the end of RW section, no matter the actual layout
being used.

However, the (deprecated) usbpd1 image type assumes that flash is
equally split between RO and RW, so we do not change that.

BRANCH=none
BUG=chrome-os-partner:61671
TEST=make BOARD=hammer -j && deploy
TEST=make BOARD=hoho -j && \
         futility show --type usbpd1 build/hoho/ec.bin

Change-Id: Ia02e927f9128d6ec3d0b780c28312e0d18835d72
Reviewed-on: https://chromium-review.googlesource.com/426100
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-02-22 03:29:28 -08:00
Philip Chen
551e56ea06 mkbp: Support devices having buttons but no keyboard
If we turn on CONFIG_KEYBOARD_PROTOCOL_MKBP on devices
without keyscan task, we'll see a few compile errors
due to dependencies on keyscan.
This is the fix.

BUG=chrome-os-partner:62987
BRANCH=none
TEST=make buildall -j

Change-Id: Ib0dd1570f0e1a2de084cf1c5f75b8e3ad1cb301a
Reviewed-on: https://chromium-review.googlesource.com/443745
Reviewed-by: Shawn N <shawnn@chromium.org>
Commit-Queue: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/444946
Commit-Ready: Philip Chen <philipchen@chromium.org>
2017-02-21 16:07:40 -08:00
Scott
8cef7bab3b driver: Add polling mode support to Si114x ALS sensor
Eve P1 is missing the ALS_INT_L signal and so needs to poll the
Si114x. This CL adds a new config option CONFIG_ALS_SI114X_POLLING
that when defined uses a deferred callback to trigger the motion
sensor event that reads sensor registers. The deferred callback uses a
8 msec delay which is ~2x longer than the time required by the sensor
to complete the measurement.

BUG=chrome-os-partner:61470
BRANCH=none
TEST=On Eve verify that light sensor measurments are present with the
'accelinfo on 1000' command.

Change-Id: I212bebf2ceacbac87ccb0734cc4990dbc349b028
Signed-off-by: Scott <scollyer@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/440377
Commit-Ready: Scott Collyer <scollyer@chromium.org>
Tested-by: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
2017-02-20 14:28:02 -08:00
Aseda Aboagye
114f5cee5a g: extension: Add a whitelist for vendor commands.
The USB FW upgrade endpoint should really only accept vendor commands
required to perform the firmware update.  This commit adds a whitelist
that is checked whenever a vendor command is received over this
endpoint.

The allowed commands over USB are the following:

 - EXTENSION_POST_RESET
 - VENDOR_CC_IMMEDIATE_RESET (only for dev images)

There is also functionality to have a whitelist for vendor commands that
come over the TPM interface.

BUG=chrome-os-partner:62815
BRANCH=None
TEST=Flash Cr50 with image containing this change.  Verify that an
upgrade over USB to newer image works.
TEST=Try using usb_updater to send a vendor command that's not in the
whitelist.  Verify that the vendor command is dropped.

Change-Id: I71f8ba090a1cc6c9e7c30ce0dd3c25259e8f292f
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/443447
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-02-18 17:26:59 -08:00
Aseda Aboagye
4ed4044329 cr50: Decrement retry counter on manual reboots.
Currently, manually triggered reboots cause the retry counter to be
incremented.  However, if the system is responsive enough to process the
reboot commands from either the console or TPM vendor command, we can
assume that the image is "ok".  This commit changes the Cr50 behaviour
to decrement the retry counter when a reboot is issued on the console or
the TPM vendor command is received.

BUG=chrome-os-partner:62687
BRANCH=None
TEST=Flash cr50. Flash an older image in the other slot. Enter the
reboot command on the console over 10 times and verify that retry
counter never exceeds RW_BOOT_MAX_RETRY_COUNT and older image is never
executed.

CQ-DEPEND=CL:444264

Change-Id: Ic35bdc63c4141834584a00a7ecceab2abe8dfc21
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/443330
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-02-18 17:26:59 -08:00
Shawn Nematbakhsh
2062c99cd2 cleanup: Move chip/g-specific system() prototypes to system_chip.h
BUG=chromium:693148
BRANCH=None
TEST=`make buildall -j`

Change-Id: I7a758e6b5a04721d0422cfe8b767d85abddb1ad2
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/444264
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-18 17:26:59 -08:00
Nicolas Boichat
07eccbb414 rwsig: Add support for rwsig image types
usbpd1 futility image type is deprecated and should not be used for
new designs. This adds proper support for rwsig image type.

Key and signatures are added at linker stage step (futility cannot
directly create such signed images). Thanks to VB21 header, rwsig.c
can now tell how many bytes of the RW image need to be
cryptographically verified, and ensure that the rest is blank (0xff).

BRANCH=none
BUG=chromium:690773
TEST=make BOARD=hammer; flash, RW image is verified correctly.
TEST=make runtests -j
TEST=For the rest of the tests:
     Change config option to CONFIG_RWSIG_TYPE_RWSIG
TEST=make BOARD=hammer; flash, hammer still verifies correctly.
TEST=cp build/hammer/ec.RW.bin build/hammer/ec.RW.bin.orig;
     futility sign --type rwsig --prikey build/hammer/key.vbprik2 \
        build/hammer/ec.RW.bin
     diff build/hammer/ec.RW.bin build/hammer/ec.RW.bin.orig
     => Same file
TEST=Add CONFIG_CMD_FLASH, flashwrite 0x1e000, reboot, EC does
     not verify anymore.
TEST=dump_fmap build/hammer/ec.bin shows KEY_RO and SIG_RW at
     correct locations.

Change-Id: I50ec828284c2d1eca67fa8cbddaf6f3b06606c82
Reviewed-on: https://chromium-review.googlesource.com/441546
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-02-17 04:09:37 -08:00
Vincent Palatin
7a9b35ac70 Add eve_fp board
Eve FP MCU is using the STM32L442 microcontroller.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:62893
TEST=make BOARD=eve_fp
run it on Nucleo-L432KC (STM32L432KC is mostly the same MCU without AES)

Change-Id: I18dc57e9bf262c36283f8c835a2d4320bc5ee837
Reviewed-on: https://chromium-review.googlesource.com/442467
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
2017-02-17 01:47:29 -08:00
Gwendal Grignou
484ef12119 motion: Add opt3001 as a motion sensor
Use the motion sensor to manage ALS as well.
The current interface (via memmap) is preserved, but
we can also access the sensor via cros ec sensor stack and
send the ALS information to ARC++.

BUG=chrome-os-partner:59423
BRANCH=reef
CQ-DEPEND=CL:424217
TEST=Check the sensor is working via ACPI sensor and
cros ec sensor. Check ARC++ sees the sensors.

Change-Id: Iaf608370454ad582691b72b471ea87b511863a78
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/424323
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
2017-02-16 18:03:59 -08:00
Nadim Taha
69c3fc2378 builtin: Expands string.h / stdint.h
Declares UINT8_MAX, INT8_MAX and defines strnlen(), strncpy(), strncmp() &
memchr(). Needed by a module I'm integrating into cr51.

BRANCH=none
BUG=none
TEST=make buildall -j

Change-Id: I894b0297216df1b945b36fc77cd3bc5c4ef8aa2b
Signed-off-by: Nadim Taha <ntaha@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/436786
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-17 01:46:31 +00:00
Daisuke Nojiri
4d6eb1bc01 pdchipinfo: Add option to force renewal
This change adds an option to pdchipinfo command to force ec to get
the version from the chip instead of the cache (if it's available).

This option will be used after firmware update, which makes the cache
value stale.

BUG=chrome-os-partner:62383
BRANCH=none
TEST=Run ectool as follows:
localhost ~ # /tmp/ectool pdchipinfo 0 on
vendor_id: 0xaaaa
product_id: 0x3429
device_id: 0xad
fw_version: 0x15
localhost ~ # /tmp/ectool pdchipinfo 1 on
EC result 2 (ERROR)

Change-Id: Icefe96d7fc1208b991a4caa13aaf4f04052edba7
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/441271
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-02-14 17:28:16 -08:00
Daisuke Nojiri
c9ea4bddbc pdchipinfo: Increase compatibility of fw_version
The firmware version formats may vary chip to chip. fw_version field is
changed to a union of a 8 byte string and an 64-bit integer.

BUG=chrome-os-partner:62383
BRANCH=none
TEST=ectool pdchipinfo 0/1 on Electro

Change-Id: Id51e66c44338a09ed897ee61f54cd6a394400e63
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/441270
2017-02-14 17:28:15 -08:00
Gwendal Grignou
d910997f6a lis2dh: code cleanup
Make FIFO a stack variable to save static memory,
Remove auto_inc argument, always set
Remove constant for rate 0.
Force board to declare sensor private data.
Avoid name collision in stm_mems_common
Include stm_mems_common.h in accel_lis2dh.h, caller only need to
include accel_lis2dh.h.

BUG=none
BRANCH=none
TEST=Compile with discovery_stmems board.

Change-Id: Id52b54dd4ec3cf217247c5511ad5a506067ad293
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/441144
Tested-by: mario tesi <mario.tesi@st.com>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: mario tesi <mario.tesi@st.com>
2017-02-13 21:15:16 -08:00
Shawn Nematbakhsh
1a736ed954 kevin / gru: Reduce SRAM footprint
Remove console commands and add CONFIG options to reduce RAM usage.

BUG=chrome-os-partner:54099
BRANCH=gru
TEST=Verify charge_ramp CONFIG + task builds for gru.

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I2d7bc77d1fc032c6cb75eb1ec8d13dacb676658d
Reviewed-on: https://chromium-review.googlesource.com/437662
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
2017-02-13 18:25:51 -08:00
Nicolas Boichat
8c12f0a53f flash: Pass more precise parameter to flash_[physical_]protect_at_boot
In preparation for adding the rollback protection block, pass
EC_FLASH_PROTECT_RO/ALL_AT_BOOT to flash_[physical_]protect_at_boot,
instead of an enumeration no protection/RO/ALL.

This will later allow us to protect/unprotect the rollback region only,
by adding a EC_FLASH_PROTECT_ROLLBACK_AT_BOOT flag.

BRANCH=none
BUG=chrome-os-partner:61671
TEST=Build hammer with CONFIG_CMD_FLASH command, so that write protection
     can be checked with flasherase/flashwrite.
TEST=On hammer (stm32f072):
     flashinfo => RO+RW not protected
     flashwp true; reboot => only RO protected
     flashwp rw; reboot => RO+RW protected
     flashwp norw; reboot => only RO protected
TEST=On reef (npcx):
     deassert WP, flashwp false; flashinfo => RO+RW not protected
     flashwp true => only RO protected
     reboot => only RO protected
     flashwp rw => RO+RW protected
     reboot => only RO protected

Change-Id: Iec96a7377baabc9100fc59de0a31505095a3499f
Reviewed-on: https://chromium-review.googlesource.com/430518
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-02-12 21:05:11 -08:00
Daisuke Nojiri
c51e0b2f75 PD: Remove CONFIG_USB_PD_TCPC_FW_VERSION
This removes CONFIG_USB_PD_TCPC_FW_VERSION.
board_print_tcpc_fw_version is removed since it's no longer called.
PD chip info is printed in usb_pd_protocol.c.

BUG=none
BRANCH=none
TEST=buildall. Boot Electro, verify chip info is printed.

Change-Id: I2ff860c2a1b17ceea124644ba8feb356b9cca2eb
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/434911
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-02-11 15:04:42 -08:00
Shawn Nematbakhsh
eb2e38ec56 console: Add non-verbose print config option
Shorten certain long prints and reduce the precision of timestamp prints
when CONFIG_CONSOLE_VERBOSE is undef'd.

BUG=chromium:688743
BRANCH=gru
TEST=On kevin, cold reset the EC, boot to OS, and verify cros_ec.log
contains all data since sysjump and is < 2K bytes (~1500 bytes).

Change-Id: Ia9390867788d0ab3087f827b0296107b4e9d4bca
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/438932
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2017-02-11 13:06:38 -08:00
Vijay Hiremath
f30a8cf686 charger_profile: support multiple battery voltage range thresholds
Current fast charge assumes only one battery voltage threshold range for
charger profile override. However we have multiple battery voltage
threshold ranges for few batteries hence added a code which can consider
multiple battery threshold ranges and choose respective charge profile.

BUG=chrome-os-partner:62653
BRANCH=none
TEST=Manually tested on Electro. Manipulate smp_cos4870 & sonycorp
     battery voltage & temperature ranges and observed correct charge
     profile is selected.

Change-Id: Icddc047e608cc8f63cd0c19be716e0f7908ca715
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/438804
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-02-10 19:02:55 -08:00
Daisuke Nojiri
4ff544a573 Add host command to get PD chip information
This patch adds a host command to get PD chip info.

For PS8751, tcpci_get_chip_info will fail if the chip is in
low power mode. It can be woken up by reading a random register
first then wait for 10ms.

This code doesn't have the wake-up read to avoid 10ms delay.
Instead, we call this function immediately after the chip is
initialized because it'll gurantee the chip is awake.

Once it's called, the chip info will be stored in cache, which
can be accessed by tcpc_get_chip_info without worrying about
chip states.

localhost ~ # ectool pdchipinfo 0
vendor_id: 0xaaaa
product_id: 0x3429
device_id: 0xad
fw_version: 0x15

localhost ~ # ectool pdchipinfo 1
vendor_id: 0x1da0
product_id: 0x8751
device_id: 0x1
fw_version: 0x37

BUG=chrome-os-partner:62383
BRANCH=none
TEST=ectool pdchipinfo 0/1. make buildall

Change-Id: I3f1667d00ce1826936d90882ada1df6ed6b0ea37
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/433166
2017-02-09 22:50:50 -08:00
Furquan Shaikh
4ce529e25a chip/npcx/espi: Handle global reset events asserting eSPI_Reset#
In case there is a sudden power loss to PCH, then there are no eSPI VW
messages sent from the PCH to EC indicating power state transition into
S5. Instead, the eSPI compatibility spec defines such events as global
reset events. For global reset events, eSPI_Reset# signal is asserted
without SLP_SUS# being asserted. This acts as an indication to the EC
that there was a global reset event.

Add a callback chipset_handle_espi_reset_assert that takes any necessary
action whenever eSPI_Reset# pin is asserted. On skylake, it would check
if power button was being pressed and release the button.

BUG=chrome-os-partner:62014
BRANCH=None
TEST=Verified that apshutdown works as expected.

Change-Id: I409afa0d00faca55ae3aa577743cedac58d4d877
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/438935
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-02-09 20:48:47 -08:00
Mario Tesi
8db50ce410 driver: accel: Add acc driver basics and FIFO for LIS2DH/LIS2DH12
Add driver for acc sensor ST lis2dh/lis2dh12
    Support interrupt management for FIFO watermark
    Starting to share common code with other devices
    like lsm6dsm/lsm6dsl (acc/gyro) or new lis2mdl (mag)
    TODO: Add all embedded functions support (click,
    tap and so on)

    BUG=none
    BRANCH=master
    TEST=Tested on discovery BOARD with sensor connected on
    EC i2c master bus. Added motion sense task on discovery
    board task list, added gpio info in board configuration
    file and tested with motion sense console commands. Data
    for acc seems ok: can successfully change ODR and
    full scale range. Also FIFO and interrupt tested
    Device tested is lis2dh (lis2dh12 simply differs for low
    pin count but share the same registers)

Change-Id: I16abeac3f139a604094b38d8d8b857a62c93a242
Signed-off-by: Mario Tesi <mario.tesi@st.com>
Reviewed-on: https://chromium-review.googlesource.com/412700
Commit-Ready: mario tesi <mario.tesi@st.com>
Tested-by: mario tesi <mario.tesi@st.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
2017-02-09 03:10:22 -08:00
Nadim Taha
c0feba66a2 common/spi_nor: Differential erase support
If CONFIG_SPI_NOR_SMART_ERASE is defined will read the sector/block
to be erased first and only initiate the erase operation if not
already in an erased state. The read operation (performed in
CONFIG_SPI_NOR_MAX_READ_SIZE chunks) is aborted early if a
non "0xff" byte is encountered.

Reduced erase time of a mostly erased EEPROM from 44s to 20s (16MB
Winbond part) / 1m22s to 40s (32MB Macronix part) @24MHz.

BUG=None
BRANCH=None
TEST=Built all targets. Successfully flashed various EEPROM images.

Change-Id: I369b1fcf72140663b8dbce5a469ebad27f7571ec
Signed-off-by: Nadim Taha <ntaha@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/437988
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-02-09 05:04:56 +00:00
Vadim Bendebury
a3e8ea92ff cr50: consolidate chip shutdown and resume events
There is no point in keeping in one file multiple hooks task callbacks
to handle chipset shutdown and resume conditions.

Also, the policy of disabling deep sleep needs to be decided in the
board level hooks.

BRANCH=none
BUG=chrome-os-partner:59007
TEST=ran reef through 200 cycles of suspend/resume

Change-Id: I4d30cd04b986b243a5bea44c6978a5f82f8f62a7
Reviewed-on: https://chromium-review.googlesource.com/437729
Reviewed-by: Scott Collyer <scollyer@chromium.org>
Commit-Queue: Vadim Bendebury <vbendeb@chromium.org>
Tested-by: Vadim Bendebury <vbendeb@chromium.org>
Trybot-Ready: Vadim Bendebury <vbendeb@chromium.org>
2017-02-07 02:44:43 +00:00