Commit Graph

801 Commits

Author SHA1 Message Date
Wonjoon Lee
0a166c0467 Adding waiting function when battery boot-up
Some battery uses clock stretching feature, and this could disturb
PMU communication before battery going stable.
AP does not know and will attempt PMU setting, and could get fail
For various battery indicates usually 1s for stable
(even if it is much less in real world 200ms~700ms)
Let's checking 'battery is ready' when first pump-up power.

BRANCH=ToT
BUG=chrome-os-partner:28289
TEST=Going battery shipmode and plug-in AC, See booting and EC log
Disconnect battery, and plug-in and see booting and EC log

Change-Id: Idd8ae2ab4ec164b11fe67413bbf647cad18bc481
Signed-off-by: Wonjoon Lee <woojoo.lee@samsung.com>
Reviewed-on: https://chromium-review.googlesource.com/197990
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
2014-05-07 21:43:04 +00:00
Wenkai Du
372317af34 CHROMIUM: ec: Add Port 80 history access from ectools
While debugging reboot issue, it was difficult to get POST code from failing
boards. Currently POST code is only accessible from EC console. Not all boards
are fitted with servo board.

This patch adds Port 80 history access from ectool. Reuse command code 0x48,
EC_CMD_PORT80_LAST_BOOT with version 1.

Signed-off-by: Wenkai Du <wenkai.du@intel.com>

BUG=chrome-os-partner:28514
BRANCH=rambi
TEST=manually test on rambi to confirm port 80 history match EC console

Change-Id: If204d8fb457d8d8d18055f8282a406a35c03305e
Reviewed-on: https://chromium-review.googlesource.com/198012
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Wenkai Du <wenkai.du@intel.com>
Commit-Queue: Wenkai Du <wenkai.du@intel.com>
Tested-by: Wenkai Du <wenkai.du@intel.com>
2014-05-07 03:41:27 +00:00
Vincent Palatin
b0d1d11655 zinger: implement fault protection
Detect over-current and over-voltage and trigger a fault.

The over-current threshold is 10% over 3A (3.3A).

Only currently implement the slow protection,
the fast interrupt-based one will be done later.

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

BRANCH=none
BUG=chrome-os-partner:28331
TEST=with Zinger connected to an electronic load, adjust the current to
3.35A and see the output voltage cut.

Change-Id: I0e848192392fd73f0839d4bcb806528b2a6b9122
Reviewed-on: https://chromium-review.googlesource.com/197947
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
2014-05-05 18:35:37 +00:00
Vincent Palatin
d2c5e22944 pd: more robust reception
Ensure that we finish reception if and only if we started it
whatever other events happened.

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

BRANCH=none
BUG=chrome-os-partner:28332
TEST=Connect Zinger to Firefly, request higher voltage and ensure that
Firefly was still getting the Pings after several hours.

Change-Id: Ie99984aeb4c565be39d349457dbd2813203b3f5b
Reviewed-on: https://chromium-review.googlesource.com/197946
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2014-05-02 22:01:57 +00:00
Randall Spangler
dd702e8447 baytrail: Workaround for stuck boot process
In some cases, the system will boot to S0 from the point of view of
the EC, but PLTRST# will never deassert.  Work around this by waiting
50 ms for PLTRST# to deassert.  If it doesn't, force the chipset all
the way down by deasserting RSMRST#, then pulse the power button to
turn it back on.

Also add a powerfail debug command to simulate this failure event, so
that the recovery process can be tested.

Add API to the LPC module to get the state of PLTRST#, and to the
power button state machine to force it released when we shut down the
chipset and and force another power button pulse as we reset the
chipset.

BUG=chrome-os-partner:28422
BRANCH=baytrail
TEST=1. Boot system.  Should boot normally.  Shut system down.
     2. powerfail
     3. Boot system.  On the EC console, should see the system come up,
        go back down through G3S5, then come back up.  From the user's
	point of view, it just boots.
     1. Boot system.  Should boot normally.  (That is, powerfail is not sticky)

Change-Id: Ia57f196606f79b9f2fce7d9cd109ab932c3571aa
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/197523
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2014-04-30 10:00:02 +00:00
Vincent Palatin
bc72ea3e17 pd: handle plug polarity
Use the plug polarity detected by the ADCs to do the PD communication on
the right CCx line.

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

BRANCH=none
BUG=chrome-os-partner:28339
TEST=make buildall
on Firefly, plug Zinger connector in both direction and see it can
control it either way.
on Fruitpie, use CC1 or CC2 and see it can communicate on both.

Change-Id: I81cb00f164cb8194fba73b383014e81c37d975e2
Reviewed-on: https://chromium-review.googlesource.com/197520
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-04-30 09:42:52 +00:00
Vincent Palatin
439bfbdded pd: update policy, timeout and board callbacks
Slightly modify interfaces for better sink-only devices implementation
(eg Firefly)

update the host mode management and the voltage selection
and add a hook for board checks.

Simplify the reception timeout and fix other timeout detections.

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

BRANCH=none
BUG=none
TEST=make buildall
and use with the follow-up firefly board configuration CL.

Change-Id: I0240295764c8605793dc80a2fc21357af1740744
Reviewed-on: https://chromium-review.googlesource.com/195585
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-04-30 09:42:48 +00:00
Mohammed Habibulla
2457b509cc Added v1 version of ectool gpioget supporting more functions
ectool gpioget             - returns all GPIOs (with flag info)
ectool gpioget <GPIO_NAME> - get value of <GPIO_NAME>
ectool gpioget count       - returns number of GPIOs
ectool gpioget all         - returns all GPIOs (with flag info)

BUG=chromium:344969
TEST="ectool gpioget [<subcmd> <GPIO_NAME>]" returns correct information
on squawks
BRANCH=none

Change-Id: Ib6f0d8135a76501f08b084bfd7eb1f2689d5d6e0
Signed-off-by: Mohammed Habibulla <moch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/196680
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-04-29 03:11:16 +00:00
Alec Berg
b57137dcac stm32: pd: add config option to use SPI master for USB PD trasmit
Added config option CONFIG_USB_PD_TX_USES_SPI_MASTER which switches
to use SPI master for PD transmit. The advantage of SPI master mode
is at the end of the tranmission, we don't have to send any dummy 0
bits. When the option is set, the CPU_CLOCK must be set to 38.4MHz,
so that the SPI master can generate the correct clock frequency.

BUG=chrome-os-partner:28309
BRANCH=none
TEST=Tested by connecting two fruitpies together across CC1. One
fruitpie has been modified such that the MISO and MOSI lines are
swapped and is running PD TX in SPI master mode with 38.4MHz clock,
while the other is running PD TX in SPI slave mode. On EC console
ran pd charger on one board and pd dev on other board. Verified
that communication works with no errors. Ran for 10 minutes in each
configuration.

Change-Id: Ib24030d34d95d59f4ac6c2dae98bf7adda1ada01
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/197215
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2014-04-29 03:11:12 +00:00
Dave Parker
6f21e3f5c1 Rename battery_vendor_params() to battery_override_params()
Charger V1 only. This is a clearer name for the intent of
the function to override the charging parameters requested
by the battery. This also disabmiguates this function with
a new host command to get and set arbitrary vendor
parameters in the battery.

BUG=chrome-os-partner:25145
BRANCH=ToT
TEST=`make buildall -j`.

Change-Id: I1e8762d359c0e91c5b2a539553d22c12c9850c03
Signed-off-by: Dave Parker <dparker@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/195823
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/197164
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2014-04-29 03:11:05 +00:00
Dave Parker
4e1472e303 Add host command to set battery vendor parameters
Also adds 'battparam' console command.

BUG=chrome-os-partner:25145
BRANCH=ToT
TEST=Run 'ectool batteryparam set 0 0x1234'
         'ectool batteryparam get 0'
and on the console:
         'battparam 0'
         'battparam 0 0x1234'
on a board that implements parameter 0.

Change-Id: I9cc54d001631f53dd39ae64cfdeececaa1747181
Original-Change-Id: Ib2812f57f2484309d613b23dab12ad43e0417bd2
Signed-off-by: Dave Parker <dparker@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/195824
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/197162
2014-04-29 03:11:01 +00:00
Louis Yung-Chieh Lo
3ac560d41b battery: don't talk to battery after cut-off
Add a shortcut in smart battery driver and i2c passthru. Once
the battery cut-off order is submitted (in the factory line),
the EC will no longer talk to battery.

BUG=chrome-os-partner:28248
BRANCH=tot,nyan
TEST=See below
> remove AC, cutoff: expect system is off.
> cutoff, then remove AC: expect system is off.
> cutoff, wait for 1 min, then remove AC: expect system is off.

Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>

Change-Id: Ied963c19d17d581ce99e4543469cf2fa165f0439
Reviewed-on: https://chromium-review.googlesource.com/196657
Tested-by: Yung-chieh Lo <yjlou@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Queue: Yung-chieh Lo <yjlou@chromium.org>
2014-04-25 03:41:58 +00:00
Louis Yung-Chieh Lo
2e7ea4efdb battery: move cut-off commands to common/battery.c
So that host and EC commands will be defined in common/battery.c.
The board-specific battery.c can focus on the proprietary method.

BUG=chrome-os-partner:28248
BRANCH=tot,nyan
TEST=make buildall runtest
Tested "cutoff" in EC console on big.

Change-Id: I213c0d601d0241c8dea309d6ac60c72452d2d100
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/196621
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2014-04-23 22:59:51 +00:00
Louis Yung-Chieh Lo
58878e79e0 Fixed the stack overflow bug in 'battery' console command.
On the Nyan EC, we almost run out of the stack of console task.
Instead of making that struct static or global, we print the cached data.
Read the issue tracker for more detailed discussion.

BUG=chrome-os-partner:28027
BRANCH=tot
TEST=verified on nyan with/without battery.
The "battery" console command doesn't crash the system.

Change-Id: Id5246724760aed4cf1df827baf115007b2ffb48e
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/194875
Reviewed-by: Dave Parker <dparker@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2014-04-21 20:58:32 +00:00
Alec Berg
b610695b61 cortex-m: store FPU regs on context switch
Added storing of FPU regs on context switches when CONFIG_FPU is defined.
On context switches, EXC_RETURN[4] is checked in order to tell which tasks
have used floating point and which have not. The FPU regs are only stored on
task stacks for tasks that use the floating point. Tasks that use floating
point will therefore require roughly an additional 128 bytes of stack space,
and context switches will take about 32 clock cycles longer for each task
involved in the switch that uses FP.

For tasks that don't use floating point, the stack usage actually decreases
by 64 bytes because previously we were reserving stack space for FPU regs
S0-S15 on every context switch for every task, even though we weren't doing
anything with them.

If a task only uses the FPU for a brief window, it can call
task_clear_fp_used() in order to clear the FP used bit so that context
switches using that task will not backup FP regs anymore.

BUG=chrome-os-partner:27971
BRANCH=none
TEST=Tested on glimmer and peppy. Added the following code, which uses the
FPU in both the hooks task and the console task. Note, I tested this for
a handful of registers, notably registers in the group s0-s15 which are
backed up by lazy stacking, and registers in the group s16-s31 which are
backed up manually.

float dummy = 2.0f;
static void hook_fpu(void)
{
	union {
		float f;
		int i;
	} tmp;

	/* do a dummy FP calculation to set CONTROL.FPCA high. */
	dummy = 2.3f*7.8f;

	/* read and print FP reg. */
	asm volatile("vmov %0, s29" : "=r"(tmp.f));
	ccprintf("Hook float 0x%08x\n", tmp.i);

	/* write FP reg. */
	tmp.i = 0x1234;
	asm volatile("vmov s29, %0" : : "r"(tmp.f));
}
DECLARE_HOOK(HOOK_SECOND, hook_fpu, HOOK_PRIO_DEFAULT);

static int command_fpu_test(int argc, char **argv)
{
	union {
		float f;
		int i;
	} tmp;

	/* do a dummy FP calculation to set CONTROL.FPCA high. */
	dummy = 2.7f*7.8f;

	/* read and print FP reg. */
	asm volatile("vmov %0, s29" : "=r"(tmp.f));
	ccprintf("Console float 0x%08x\n", tmp.i);

	if (argc == 2) {
		char *e;

		tmp.i = strtoi(argv[1], &e, 0);
		if (*e)
			return EC_ERROR_PARAM1;

		/* write FP reg. */
		asm volatile("vmov s29, %0" : : "r"(tmp.f));
	} else {
		task_clear_fp_used();
	}

	return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(fputest, command_fpu_test, "", "", NULL);

When you call fputest 5 from EC console before this CL, then on the next
HOOK_SECOND, the value of register s29 is 5, instead of 0x1234 because
register s29 is not saved on context switches:

Hook float 0x00001234
> fputest 5
Console float 0x00001234
Hook float 0x00000005

When this CL is in use, the register holds the correct value for each task:

Hook float 0x00001234
> fputest 5
Console float 0x00001234
Hook float 0x00001234
> fputest
Console float 0x00000005
Hook float 0x00001234

Change-Id: Ifb1b5cbf1c6fc9193f165f8d69c96443b35bf981
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/194949
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2014-04-18 18:58:36 +00:00
Vincent Palatin
6c6276fd45 FruitPie board configuration
Add all the pins configuration to use the real FruitPie board
and the USB Power Delivery configuration.

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

BRANCH=none
BUG=none
TEST=make BOARD=fruitpie

Change-Id: I8c20118400cb6a2e26b541a9ee2da5b706299fcf
Reviewed-on: https://chromium-review.googlesource.com/189862
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-04-12 01:45:47 +00:00
Vincent Palatin
d4c939e9ee USB Power Delivery core code
The protocol layer implementation for USB Power Delivery messaging.

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

BRANCH=none
BUG=none
TEST=none

Change-Id: I7db75b004cf9dbf13fa1df95336f206e93236fc9
Reviewed-on: https://chromium-review.googlesource.com/189866
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-04-12 01:45:37 +00:00
Alec Berg
3344c8e2e6 Refactored keyboard scan enable flag to allow for multiple disable reasons
Refactored keyboard scan enable/disable flag such that it is a mask of
potential disable sources. When all disable sources are off, scanning is
enabled, otherwise scanning is disabled. This fixes a recently introduced
bug in which enabling/disabling keyboard scanning due to lid angle in S3
was interfering with enabling/disabling keyboard scanning due to power
button. This also allows for easy expansion for future causes for disabling
keyboard scanning.

BUG=chrome-os-partner:27851
BRANCH=rambi
TEST=Manual tests with a glimmer. Used the ksstate console command to
check state of keyboard scanning under all permutations of power button
pressed/unpressed, lid switch open/closed, and lid angle in tablet position
vs. laptop positon.

Change-Id: Ied4c5ebb94510b1078cd81d71373c0f1bd0d6678
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/194287
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-04-11 20:02:30 +00:00
Bill Richardson
5019551e1d Move common charge_state time constants to a common header
We had duplicate values in both v1 and v2 headers. Let's consolidate them in
one place, and prefix the constants with "CHARGE_", so people don't use them
randomly.

BUG=chrome-os-partner:20881
BRANCH=ToT
TEST=make buildall -j

No functionality changes, refactor/rename only.

Change-Id: I0ee599a2e3bf0835c2c0a7e57872ad9015701a4b
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193876
2014-04-11 15:37:38 +00:00
Alec Berg
eaa645e0cc accel: Add host cmd for setting lid angle threshold for disabling keyboard wake
Added a sub-command to the motionsense host command (0x2b) for getting/setting
the lid angle at which the keyboard is disabled as a wake source in S3. The
value can be anywhere from 0 to 360 degrees, default set to 180. Note, this
only takes affect for boards that have CONFIG_LID_ANGLE_KEY_SCAN defined.
Modified ectool motionsense command to use new host sub-command.

Also modified the lid angle measurement in the EC to be in the range [0, 360],
instead of [-180, 180], and changed casting of lid angle as an int to round
to nearest.

BUG=none
BRANCH=rambi
TEST=Tested on a glimmer:
Using default keyboard disable lid angle of 180, made sure that when lid
angle is past 180, key presses do not wake system, and when lid angle is
less than 180, key presses do wake up system.

Used ectool motionsense kb_wake to set the keyboard disable lid angle to 0.
Made sure that keyboard never wakes up the system. Set keyboard disable lid
angle to 360 and made sure that the keyboard always wakes up the system.

Change-Id: I437164c6e38c29169ef6e20e86c9cf2a1c78f86e
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193663
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/194172
2014-04-11 04:00:44 +00:00
Alec Berg
b12206307e accel: refined motion sense host command interface
Added enum for motion sensor ID's into ec_commands.h so that the host
can easily send host commands targeting the desired accelerometer.

Changed sensor present flag to just senosr flags, currently with only a
single mask defined for sensor present. This allows for easier future
expansion of various flags.

Also, added a motion sense module flags to the dump sub-command for flags
that represent all sensors, such as is the motion sense task active.

BUG=chrome-os-partner:27321
BRANCH=rambi
TEST=Manual test on a glimmer by testing ectool motionsense command

Change-Id: Iac052269a60db9ff4506f0490c3a0c6daad5b626
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193122
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193309
2014-04-05 03:27:13 +00:00
Alec Berg
529548208c accel: add host command to modify accel params and add ectool command
Created a host command to set/get various motion sensor parameters and
added an ectool command to use that host command.

The host command is created such that the first argument is a
sub-command. Sub-commands created include:
dump: dumps all current motion sensor data
info: returns general information about each motion sensor
ec_rate: set/get the EC sampling rate of sensors
sensor_range: set/get the sensor range (ie +/- 2G,4G,8G)
sensor_odr: set/get the sensor output data rate (ie 50Hz, 100Hz, ...)

For sensor_range and sensor_odr parameters, since the host doesn't know
what are valid values for the parameter, the host can specify to round
up or down to the nearest valid value. For example, the host can specify
to set the output data rate to at least 100Hz, and the EC will return
the closest valid output data rate that is at least 100Hz.

BUG=chrome-os-partner:27321
BRANCH=rambi
TEST=Test on a glimmer using ectool from vt-2 prompt:

> ectool motionsense help
Usage:
  motionsense                            - dump all motion data
  motionsense info NUM                   - print sensor info
  motionsense ec_rate [RATE_MS]          - set/get sample rate
  motionsense odr NUM [ODR [ROUNDUP]]    - set/get sensor ODR
  motionsense range NUM [RANGE [ROUNDUP]]- set/get sensor range
>
> ectool motionsense
Sensor 0: 0, 0, 1024
Sensor 1: 1024, 0, 0
Sensor 2: None
> ectool motionsense info 0
Type:     accel
Location: base
Chip:     kxcj9
> ectool motionsense ec_rate
10
> ectool motionsense ec_rate 1000
1000
> ectool motionsense odr 0
100000
> ectool motionsense odr 0 40000 1
50000
> ectool motionsense range 0 8
8

After running this I verified on the EC console that all the parameters
were set appropriately. I tested the EC sampling rate was 1000ms by
running lidangle on and making sure samples were displayed roughly every
second. I verified the sensor odr and range by defining
CONFIG_CMD_ACCELS and typing:

> accelrange 0
8
> accelrate 0
50000

Change-Id: I444e2f0eafabd607f1c7aa78b5c4e91f6cb06387
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/192064
Reviewed-on: https://chromium-review.googlesource.com/193307
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-04-05 03:25:47 +00:00
Bill Richardson
f06ad7e2ab Add host command to control charge state v2
This replaces the obsolete and temporary (ha!) EC_CMD_CHARGE_DUMP host
command with EC_CMD_CHARGE_STATE. This is used to monitor and adjust the new
charge state implementation, including any board-specific customizations.

This command is a single catch-all command with multiple subcommands
(similar to EC_CMD_LIGHTBAR_CMD) so that we don't have to keep adding new
top-level host commands just to support incremental changes.

BUG=chrome-os-partner:23776
BRANCH=ToT
TEST=manual

From the AP, try these commands:

  ectool chargestate show
  ectool chargestate param
  ectool chargestate param <NUM>
  ectool chargestate param <NUM> <VALUE>

Watch the EC console and use its "chg" command to verify the effects of
setting various params.

Note: the Samus-specific fast-charging profile override is param 0x10000.
You can check it with the EC console "fastcharge" command.

Change-Id: Iad2f773a085bc25c05073b3eed9866f122ae9d78
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193305
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-04-05 01:42:21 +00:00
Bill Richardson
34651bcb93 Add detailed comments about EC_MEMMAP area to ec_commands.h
This clarifies the use of the EC's memory-mapped interface to the AP. We
always end up reverse-engineering this, so I'm just documenting what bytes
are actually used.

BUG=none
BRANCH=ToT
TEST=make buildall

No code changes, only comments.

Change-Id: Icfaa794626d2f656ab5d8a8d067b3e2663cc8882
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193052
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-04-04 20:28:08 +00:00
Bill Richardson
9f40d3f90e Add charge_state_v2 algorithm for use by Samus
This is a complete rewrite of the charge_state task used by x86 platforms.
Rather than having a bunch of state-specific functions, each with their own
error handling and special cases, this is organized like so:

  Forever:
  1. Read everything we can from the battery and charger.
  2. Figure out what we'd like to do (including error handling).
  3. Allow for customization to override that.
  4. Do it.

Things I need to file bugs for are marked with "TODO(wfrichar)". I'll file
the bugs after this CL goes in, so that they'll have something relevant to
refer to.

BUG=chrome-os-partner:20881
BRANCH=ToT
TEST=manual

  make buildall -j

Try it on Samus, watch it charge from nearly empty to full, both with and
without fastcharge enabled.

Also undefine CONFIG_BATTERY_PRESENT_CUSTOM, plug and unplug the battery to
be sure the trickle charging logic is correct when it can't tell if the
battery is present.

Change-Id: I3935cd3b87f322eb52178f8a675a886c16b75d58
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191767
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-04-01 21:37:32 +00:00
Henry Hsu
dc6a36d371 Add pwm support while in low-power idle
BUG=None
BRANCH=None
TEST=Enable this with pwm led board, the pwm led works even EC
low-power idle.

Change-Id: Ic808104d8e38b1f9074682ced41412c6af050efe
Signed-off-by: Henry Hsu <Henry.Hsu@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/186951
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/192181
Commit-Queue: Dave Parker <dparker@chromium.org>
Tested-by: Dave Parker <dparker@chromium.org>
2014-03-29 02:20:36 +00:00
Vincent Palatin
352b07fcdd stm32: add support for stateful CRC-32
add support for CRC-32, it's using the USB variant for the constants and
bit ordering (same polynom as Ethernet).

This code is using an (evil) "stateful" design to be compatible with the
hardware CRC controller : you should NOT do concurrent accesses without
external locking (but it's good enough and ligthweight for current
usage)

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

BRANCH=none
BUG=none
TEST=run interoperability testing against other 3rd parties USB
implementations.

Change-Id: I1a07b2c4e2e71e15f9d257611652061bcfb0de9c
Reviewed-on: https://chromium-review.googlesource.com/189865
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-03-29 02:17:31 +00:00
Vincent Palatin
5945c6462f Add driver for TI BQ24773 charger
Add support TI BQ24773 1S/2S/3S NVDC battery charger.

This is not a "Smart Battery" compliant charger IC, it should and cannot
use the sbc_ helpers.

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

BRANCH=none
BUG=none
TEST=on FruitPie, run "charger" command on the EC console,
add the charger task and see the battery charging.

Change-Id: I6f470184f0ce424a05007e493d802dcdb2156477
Reviewed-on: https://chromium-review.googlesource.com/191212
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-03-29 02:17:27 +00:00
ChromeOS Developer
4681e6bc34 Initialize extpower module prior to modules with default priority
This ensures that modules with default priority (or later) get
an accurate response from extpower_is_present().

BUG=chrome-os-partner:27160
BRANCH=ToT
TEST=Add a default priority initializer. Verify it gets the correct
value for extpower_is_present() with and without external power
connected.

static void extpower_init_check(void)
{
	CPRINTF("[%T Extpower %s]\n", extpower_is_present() ? "on" : "off");
}
DECLARE_HOOK(HOOK_INIT, extpower_init_check, HOOK_PRIO_DEFAULT);

Change-Id: Ic47c79d3ab4e7b2fdb6ad2354e4f455697cac250
Original-Change-Id: I13edc32b2a4609fad12982fd710fa95f9e81c9c2
Signed-off-by: Dave Parker <dparker@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191296
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/192137
2014-03-29 02:14:26 +00:00
Bill Richardson
9151377708 Add charger_get_params() function to query charger state.
This returns all the parameters of the charger that must be monitored
frequently. While some of the fields are charger-specific, all of the
parameters are present in all supported chargers.

Nothing uses this yet.

BUG=chrome-os-partner:20881
BRANCH=ToT
TEST=make buildall -j

All targets build; all tests pass.

Change-Id: Id3e00532469b193aeab3acf93e94afe3ffb8c6b6
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191985
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-28 15:23:04 +00:00
Bill Richardson
91a5fa0194 Add more fields and error flags to struct batt_params
This adds two battery parameters that need to be monitored constantly:
remaining_capacity and full_capacity (that one only changes occasionally,
but we have to notify the AP when it does).

It also adds the is_present field to indicate whether the battery is
physically present or not (when we can tell), so we know whether to try to
wake up a deep-discharged battery.

Along with that, we clean up the error flags to provide indication of which
fields were unable to be read, and replace the manual logical-or of all
errors as they were set with a bitmask (BATT_FLAG_BAD_ANY).

No functionality is changed, only new & better information is provided for
use in the upcoming cleanup of the charge state machine.

BUG=chrome-os-partner:20881
BRANCH=ToT
TEST=make buildall -j

All targets build; all tests pass.

Change-Id: I4312c2fdd3cf2dd9570718e90571eff796b269db
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191917
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-28 15:23:01 +00:00
Vincent Palatin
b2d87dc18a compile charger driver independently of the charger task
The charger driver code has no dependency on the charger task,
we do not need to force the de-activation when the charger task is not
running.

This allow to debug new charger code without the task acting in
background and should not have any drawback.

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

BRANCH=none
BUG=none
TEST=make buildall
and run "charger" command on Fruitpie without the charger task.

Change-Id: I49a4885a2abf0e5d9e652e037941b1c4672beb7a
Reviewed-on: https://chromium-review.googlesource.com/191211
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-03-27 18:45:24 +00:00
Bill Richardson
f47b6e84e5 Make battery_is_present() tristate: YES, NO, NOT_SURE
In most cases we can't actually know whether a battery is present until
we've been able to talk to it. This adds that NOT_SURE case.

BUG=none
BRANCH=ToT
TEST=none

Nothing uses this case yet, and the only time that battery_is_present() is
called is when we have hardware to detect the battery (which always returns
YES or NO). This is just preparation for charge_state_v2, which will need
the NOT_SURE case for trickle charging.

Change-Id: Ic5793de080529d50c98860450a021a1abae168db
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191782
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-27 18:45:06 +00:00
Alec Berg
242f195771 rambi: glimmer: Disable key scanning in suspend when lid is open
Added ability to disable the keyboard to wake from suspend when the lid
is outside a certain angle range. This has been added to glimmer by
defining CONFIG_LID_ANGLE_KEY_SCAN in its board.h.

Also modified the lid angle calculation to include a reliability
flag which can be used to tell when the hinge aligns too closely
with gravity and the lid angle value is unreliable.

BUG=none
BRANCH=rambi
TEST=Tested on a glimmer:

In S3, verified that when the lid is open past ~180 deg, the keyboard
does not wake the machine. Also verified that if you align hinge with
gravity, the keyboard enabled/disabled status remains the same (since
we can't actually trust the lid angle value).

Change-Id: I45b2c7c3c4bbcae61d3a0f8b5baa461ab8dabfb0
Original-Change-Id: If1a1592d259902d38941936961854b81b3a75b95
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190061
Reviewed-on: https://chromium-review.googlesource.com/191612
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-27 18:44:14 +00:00
Alec Berg
eb14066447 accel: clapper: glimmer: Add support for accelerometer interrupt.
Adding in support for accelerometer interrupt for use currently
in clapper and glimmer. This is disabled by default and can
be enabled with CONFIG_ACCEL_INTERRUPTS.

BUG=none
BRANCH=rambi
TEST=Manual test on a glimmer using accelint console command.

On console enter:
accelint 0 32
When you tap the lid, it should fire the interrupt and print msg
to console.

accelint 1 32
Tap the base and it will fire another interrupt.

Change-Id: Iaab324945e34d527140399ec4f06efd812a62840
Original-Change-Id: I0329112fdcae3c8adc0ca07e74fef7a591d4b9a1
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190099
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191549
2014-03-26 19:31:25 +00:00
ChromeOS Developer
9d5432bc74 lm4: Use a special task event for ADC conversions
This prevents other task events from continuing the ADC
conversion prematurely; potentially leading to a panic
if the conversion interrupt occurs after the ADC has
been powered down.

BUG=chrome-os-partner:26919
BRANCH=rambi
TEST=Perform ADC conversions while running a deferred function
calling itself on a 10mSec delay. Verify no panics after ~6 hours.

Change-Id: Ic3894849c154b3f058e812b2da816e7cffb12cbf
Signed-off-by: Dave Parker <dparker@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191302
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-26 19:31:17 +00:00
ChromeOS Developer
d9bd95200f cortex-m: Add task_wait_event_mask() helper function
BUG=chrome-os-partner:27180
BRANCH=rambi
TEST=Tested indirectly via subsequent patches to use
this call in the adc and i2c handlers for the lm4.

Change-Id: I53501fdf47d606ea6c7705facb66e945e25d9745
Signed-off-by: Dave Parker <dparker@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191300
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-26 19:28:54 +00:00
ChromeOS Developer
7895c27803 cortex-m: Add debug config option for disabling buffered writes
This can be helpful when debugging "Imprecise" data bus errors.

BUG=None
BRANCH=None
TEST=Write to a memory-mapped register such as LM4_ADC_ADCISC
for a hardware block that is powered down.
Check the exception trace for a "Precise" error.

Change-Id: Ia246c3661b482e212bb0ce37b9c2d383021de639
Signed-off-by: Dave Parker <dparker@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/191392
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-26 05:33:35 +00:00
Vincent Palatin
60e47a730f make the common runtime optional
In order to achieve really tiny firmwares, make our runtime (tasks,
hooks, muxed timers, GPIO abstraction ...) optional.
Add 2 new build options for it : CONFIG_COMMON_RUNTIME and
CONFIG_COMMON_GPIO which are enabled by default, and ensure all the
source files are built according to the right configuration variable.

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

BRANCH=none
BUG=none
TEST=make buildall
build a minimal board with no runtime.

Change-Id: Icb621cbe0a75b3a320cb53c3267d6e578cd3c32f
Reviewed-on: https://chromium-review.googlesource.com/189403
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2014-03-22 06:24:16 +00:00
Vincent Palatin
b9b5c89c30 stm32: implement ADC support for STM32F0xx
Replace the stubs by an actual implementation for ADC and Analog
watchdog support on STM32F0xx chips.

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

BRANCH=none
BUG=none
TEST=manually read ADC values on STM32F072B discovery.
TEST=read all ADC values at once.
TEST=Enable watchdog and check it fires when the voltage goes out of
range.
TEST=read ADC value(s) while watchdog is enabled.
TEST=Disable watchdog and check it's actually disabled.

Change-Id: Ie6fbd1aa95a3d76394fa47803e8cfc24bf5e4562
Reviewed-on: https://chromium-review.googlesource.com/190710
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-03-20 23:51:28 +00:00
Bill Richardson
defaf5cdb5 Create stub files for charge_state_v2.c
Remove copied code from V1 implementation, reduce to bare minimum needed to
satisfy external dependencies.

Don't actually enable it for any platforms, though.

BRANCH=ToT
BUG=chrome-os-partner:23776
TEST=make buildall -j

It's used by anything and doesn't do anything if it was, but test
compilation of the changed sources by defining CONFIG_CHARGER_V2.

Change-Id: Iea37d0b4fc48c8ebf7f7088cd1674d6e275d03d4
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190853
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-20 23:51:03 +00:00
Bill Richardson
a025f18673 Rename charge_state.[ch] to charge_state_v1.[ch]
Making room for a new charge_state implementation.

BRANCH=ToT
BUG=chrome-os-partner:23776
TEST=make buildall -j

No new functionality, just renaming some files.

Change-Id: I80ce861f09129a518e180cac20d32e867a93cd46
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190852
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-20 23:51:00 +00:00
Bill Richardson
0a35a979d4 Remove conditional declaration of charge_want_shutdown()
This is only used in power_button_x86.c, which always defines
CONFIG_CHARGER, so there's no need to make it conditional.

BRANCH=ToT
BUG=chrome-os-partner:23776
TEST=make buildall -j

Change-Id: I415572e691cc5bd6b189f9d3dd737b4209c33669
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190851
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-20 23:50:57 +00:00
Vincent Palatin
d63999a12b properly define __packed when using it
we don't want to get a __packed symbol,
so we need to define __package attribute before using it for
"struct version_struct".

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

BRANCH=none
BUG=none
TEST="make buildall" and verify that we no longer have a __packed
symbol in any of the build/<board/ec.{RO|RW}.map.

Change-Id: I4c229660f9b751a9149c08261fe71154067e6e62
Reviewed-on: https://chromium-review.googlesource.com/189223
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2014-03-11 05:53:49 +00:00
Vincent Palatin
7aab81edce force the compiler to use a valid register allocation for irq handlers
When we are calling the re-scheduling routine at the end of an irq
handling routine, we need to ensure that the high registers are not
currently saved on the system stack.
On Cortex-M3/M4, the compiler is normally doing tail-call optimization
there and behaving properly, but this fixes the fact that insanely large
interrupt handling routines where sometimes not compile and not running
properly (aka issue 24515).

This also prepares for one more core-specific DECLARE_IRQ routine on
Cortex-M0.

Note: now on, the IRQ handling routines should no longer be "static".

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

BRANCH=none
BUG=chrome-os-partner:24515
TEST=make -j buildall
revert the workaround for 24515, see the issue happening only without
this CL.

Change-Id: Ic419369231925568df05815fd079ed191a5446db
Reviewed-on: https://chromium-review.googlesource.com/189153
Reviewed-by: Vic Yang <victoryang@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2014-03-11 05:52:37 +00:00
Randall Spangler
c42bf99402 samus: Add host command to read raw tmp006 data
This is needed to calibrate the tmp006 remote sensor values.

BUG=chrome-os-partner:26581
BRANCH=none
TEST='ectool tmp006raw N' works for N=0,1,2,3
     And fails with invalid param for N=4.
     Data matches result of tmp006 ec console command.

Change-Id: I04ec093c7727b55caca7d02baaf373d1ff234731
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/189207
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2014-03-07 20:33:31 +00:00
Louis Yung-Chieh Lo
1484116cb0 stm32l: supports fake-hibernate
We don't have available GPIO pin for power button as the hibernate
(stand-by) wake-up source. Also, we don't want to do board change.

So, put the EC in a decent infinite loop to pretend the hibernate mode
and wait for particular wake-up event. This should be fine because
the AP is already down before EC hibernates.

BUG=chrome-os-partner:25435
BRANCH=Nyan
TEST=see comment #6 of issue for detailed test steps.

Change-Id: I2cae131789f9ca5808b60d5f2495222ca9016e7c
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/186061
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-06 23:14:07 +00:00
Vincent Palatin
6ab4ad5f95 Move CLZ emulation to common code
Move the CLZ instruction emulation C code to the common directory, so it
can be reused for all CPU cores missing a CLZ instruction (e.g. CortexM0).

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

BRANCH=none
BUG=none
TEST=run EC console on STM32F072B Discovery board with Cortex-M0 core,
and pass all available unit-tests on target.

Change-Id: Ief56cac7430fcb0fbced8a8925250c89cbd0bcfc
Reviewed-on: https://chromium-review.googlesource.com/188981
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2014-03-06 21:32:57 +00:00
Alec Berg
8a9817a5c7 cleanup: Combined i2c unwedge code into one common function
Refactored the i2c unwedge code to place it in the common directory
so that any EC chip can use it.

Added to the STM32F and LM4 boards, code to automatically detect and
unwedge the i2c bus at the start of an i2c transaction. Note that STM32L
already had this ability.

To enable unwedging of the i2c port though, the gpio pins for SDA and
SCL must be defined in the i2c_ports[] array in the board.c file. This
allows the i2c module to bit bang the unwedging for the given port. If
SDA and SCL are not defined for the port, then the unwedge code will
not run.

BUG=chrome-os-partner:26315, chrome-os-partner:23802
BRANCH=none
TEST=Manual testing on machines with different EC chips.

Testing made extensive use of https://chromium-review.googlesource.com/66389
in order to force wedging of the i2c bus so that we can attempt to unwedge
it. Note that you can easily test if the bus is wedged by running i2cscan.

On pit and spring:
On pit, after each of the following, I verified that the bus was automatically
unwedged.
On spring, the unwedge only runs at reboot, so, for the non-reboot wedge
commands, I manually ran console command unwedge, and verified that the bus
became unwedged.
(1) Bit bang a transaction but only read part of the response.
    Command to wedge: i2cwedge 0x90 0 2 2
(2) Bit bang a transaction to do a "write" and stop while the other side is
    acking. Command to wedge: i2cwedge 0x90 0 1
(3) Same as (1) but do a reboot instead of returning and see
    that the unwedge works at init time w/ no cancelled transactions.
    Command to wedge: i2cwedge 0x90 0 6 2
(4) Same as (2) but do a reboot instead of returning and see
    that the unwedge works at init time w/ no cancelled transactions.
    Command to wedge: i2cwedge 0x90 0 5

On glimmer:
Added code to call i2c_unwedge in accel_init(). Then tested unwedging the
accelerometer with the following. One extra difficulty testing this with
the accelerometer is that sometimes the bit you stop on is high, which
means it won't be wedged at all, the next start transaction will reset
the bus. So, sometimes running i2cwedge won't wedge the bus and sometimes
it will depending on the acceleration data.
(1) Big bang transaction to do a "read" of accelerometer and stop partway:
    i2cwedge 0x1c 0x0f 2 2
    i2cscan to make sure bus is actually wedged
    i2cunwedge
    i2cscan to make sure bus is now unwedged.
(2) Bit bang transaction to do a "read" and stop partway, then reboot:
    i2cwedge 0x1c 0x0f 6 2.
    i2cscan to verify that the bus is working after the reboot.

Change-Id: Ie3328e843ffb40f5001c96626fea131c0f9ad9b1
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/188422
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2014-03-06 02:42:49 +00:00
Randall Spangler
b805917e43 rambi: Remove ignored PCH signals
The EC had inputs with internal pullups on SUS_STAT#, SUSPWRDNACK, and
SLP_SX#.  But we never used those signals for anything.  The pullups
cost 1.5 mW power in S3.  So, remove those signals and their pullups.
They can be turned back on via CONFIG_CHIPSET_DEBUG.

BUG=chrome-os-partner:25568
BRANCH=rambi
TEST=build with and without CONFIG_CHIPSET_DEBUG.  Verify gpioget and
     powerindebug show the signals only when it's defined.

Change-Id: I0851243615c91a3aa8aa1b28df70809b578d2e74
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/188389
Reviewed-by: Dave Parker <dparker@chromium.org>
2014-03-01 21:57:41 +00:00