Add code to print out command version and command mask.
BRANCH=none
BUG=none
TEST=manual
. see this in on the EC console when hcdebug is on
[1022.289347 HC V:0 VM:3 0x17:00000000]
[1022.289728 HC resp:70000000000000000000000000000020]
Change-Id: I443401966b81349f41246d3a118f5f145ed4b160
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59347
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The Toad cable is browning out from time to time. Let's limit its
current in aggressive mode.
Also fix a bug in hard current limit calculation.
BUG=None
TEST=Plug-in Toad cable and see PWM duty cycle starts higher.
BRANCH=Spring
Change-Id: I06d64418989aa32a99545986fe841914f054acde
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59161
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
I just noticed that we've not been using the falco battery on falco. Not
sure how this slipped by.
BUG=chrome-os-partner:18788,chrome-os-partner:20213
BRANCH=none
TEST=none
Change-Id: Ia1d0f322ce8e296db49f91a3bf8eab593db97638
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59085
This will be used often, so let's move it to test_util.c.
BUG=chrome-os-partner:19235
TEST=Pass flash test.
BRANCH=None
Change-Id: I2f685f657f8742c2b29e3b9c88ba01daacf982f8
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58793
If the device type is non-standard charger, it could be the user
plugging in the connector too slowly and TSU6721 BCD timer expired
before the connector is fully plugged in.
Extending TSU6721 BCD timer causes a big delay in Apple charger
detection, and breaks how we detect over-current. Let's do this by
a re-detection instead. If we see a different device type, just
update the device type we have. Otherwise, we reset TSU6721 to force a
re-detection.
BUG=chrome-os-partner:19765
TEST=Plug in a charger half way in. Wait for a second, plug it in all
the way. See device type changed after few seconds.
TEST=Plug in a charger half way in and leave it there. Only see
redetection once.
TEST=Plug in a charger all the way in. See correct device type.
TEST=Plug in an Apple charger. See correct device type within a second.
TEST=Plug in a Nexus 10 charger. See correct device type after 5
seconds.
BRANCH=spring
Change-Id: Ia7733972842e6040b545670df043058c55ae3c01
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58799
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This reverts commit 6759fdc3e6.
Extending TSU6721 BCD timer causes problems on Apple charger detection.
BUG=chrome-os-partner:19765
TEST=Check Apple charger detection and over-current handling work
properly.
BRANCH=spring
Change-Id: Ie3111477e3614410bd96d65ad2a0b430bd240835
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58798
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
By 'make coverage', lcov is used to generate test coverage report in
HTML format stored in coverage_rpt folder.
BUG=chrome-os-partner:19235
TEST=Generate a report.
BRANCH=None
Change-Id: I44142eaaeb897cf09179764781120370920144cd
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58203
It was found that PL6 behaves in an inverted way when it is
configured as open drain. Add notes about determining why this
is. Apparently PL6 is an oddity w.r.t. the other pins.
BUG=chrome-os-partner:19811
BRANCH=None
TEST=built
Change-Id: I2d5b27f49c4e51ba4eb75cda9c798b9a5793f767
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58679
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
For Spring, we cannot rely on the battery current to decide if it's
fully charged. Therefore, we just use the battery charge level as the
sole indicator. The battery spec says it might stop charging when charge
level is 95%+, so we should show green LED when it reaches 94%.
Otherwise, show yellow LED.
BUG=chrome-os-partner:20017
TEST=Manual. Monitor the battery level and see LED turns green when it
goes from 93% to 94%.
BRANCH=spring
Change-Id: Ia525b2e89ebe36cc2ccce1ea0b798ba03be258a7
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58059
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Now that when ID_MUX=1, DP_SNS can be connected to either ID_OUT or
CABLE_DET, we need to handle the case where a video dongle is not
reflected by DP_SNS going low. This is done by leaving ID_MUX=1 for USB
host and monitor its detachment by sensing VBUS. As for unpowered
dongle, we just ignore it when it's not recognized.
Note that due to the polarity of CABLE_DET, we now sense dongle
detachement by DP_SNS < 0.25V. To support older boards with ID_OUT
connected, we also disconnect video dongle on system suspend and
shutdown.
BUG=chrome-os-partner:19911
TEST=Powered/unpowered video dongle detected correctly.
TEST=Add a console command to simulate CABLE_DET being high. With that,
check battery charges with powered video dongle. Check nothing happens
with unpowered video dongle.
TEST=Check video dongle considered disconnected when OTG dongle plugged
in or system shutdown.
BRANCH=spring
Change-Id: If7b530b67c98c85017ca663d43c5148f0eb9163c
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58070
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Partners are adamant that this needs doing. Whatever...
BUG=chrome-os-partner:19868
BRANCH=none
TEST=none
You can run the "charger" command on the EC console to see that the option
bits have been changed. I couldn't reproduce the original complaint, so I
don't know if this solves it.
Change-Id: I428697f69a7ba1b360e2acb123b42ed41244ebc5
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58576
We've been providing the battery's max voltage and the charger's minimum
current to try to awaken a deep-discharged battery. For some batteries, that
doesn't appear to be enough. This change will use the battery's
preconfigured precharge_current value instead.
BUG=chrome-os-partner:20142
BRANCH=none
TEST=manual
I don't have a deep-discharged battery to try it on. I've been using these
values manually in order to get the battery away. With no battery connected,
you can run the "charger" command on the EC console to see what values it's
using. They should match what the battery wants.
Change-Id: I16d06011103ba70682397859d9844a37938d3e90
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58575
We've been asked to disable the IFAULT_HI protection for the Falco battery
charger, with no explanation. This change adds the code to do that, but
leaves it ifdef'd out. If/when we get confirmation that we really want to do
that, we can.
BUG=chrome-os-partner:19868
BRANCH=none
TEST=none
No functional change yet, nothing to test.
Change-Id: I02a71461f55849a2fdb5ec220fe00e3c812ddf0b
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58467
This adds the BQ24738 smart battery charger, and a placeholder for the Falco
battery pack. I don't have either documentation or a battery to use to test,
so the battery pack stuff is just a guess (see crosbug.com/p/20142).
BUG=chrome-os-partner:20098
BRANCH=none
TEST=none
Well, if you like, from the EC console, run "charger". It should say
something like this:
> charger
Name : bq24738
Option: 1111100100010010 (0xf912)
Man id: 0x0040
Dev id: 0x000f
V_batt: 0 (1024 - 19200, 16)
I_batt: 0 ( 128 - 8128, 64)
I_in : 3968 ( 128 - 8064, 128)
>
But since I don't have either a battery or a spec, I had to guess at the
battery configuration. To test the charger, we kind of need a battery.
Change-Id: I6e63d6b5aa8be4ba15e2c427d2e86364ef6251b3
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58466
I'm still not convinced that the Slippy battery voltages are right for all
cases, but these are closer to what seems to be working. It matches what the
battery we've tested with seems to want.
BUG=chrome-os-partner:18825
BRANCH=none
TEST=none
Change-Id: I2d86c5ef39a70d3826fec31207250617596baa33
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58415
The new constants used to convert PWM duty cycle to input current,
based on a linear regression done on Aaron's characterization data
measured on DVT1 PCB.
The data points are linear enough to use the linear relationship
to set the current limitation.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=spring
BUG=chrome-os-partner:19281
TEST=none
Original-Change-Id: I8378aaea21d5b3229d505caf4849257ded77e1ad
Reviewed-on: https://gerrit.chromium.org/gerrit/58143
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
(cherry picked from commit d7b9b2a088dcf129739c7a6b8a30bc292ea7234d)
Change-Id: I11962991d6d7ba7b9d437fc56eb23974d30930a8
Reviewed-on: https://gerrit.chromium.org/gerrit/58198
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
If the I2C transaction fails, we shouldn't cache the status because that
status is not set correctly in LP5562.
BUG=chrome-os-partner:20020
TEST=Boot and check battery LED still works.
BRANCH=spring
Change-Id: I3f40c2d5c85db41e4ba4b80dc5252e5d86100823
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58072
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Sometimes initialization may fail due to bad I2C bus status. Let's allow
for maximum 3 tries of initialization 500ms apart from previous attempt.
BUG=chrome-os-partner:20020
TEST=Boot and check device type detection still works.
BRANCH=spring
Change-Id: I6ccedf77c92c4b6014ca24c7a63534316eaa7b6a
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58071
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This reverts commit c848e32161.
Too noisy. It was supposed to only show it once, but it spews constantly
instead. Debug it later - just remove it for now.
BUG=chrome-os-partner:20057
BRANCH=none
TEST=none
Change-Id: Ie6dfd4ccb84a612bb72a0d2b758361a13644e4d9
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58111
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
For simplicity of the code, we don't allow (head == tail) when the queue
is full. But currently we are wasting the size of a single unit, while
we can actually just waste 1 byte. Let's fix this.
BUG=None
TEST=Pass the unit test.
BRANCH=None
Change-Id: Id09c20a9345ebb3ec0cad659afe36e25b422e688
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58058
Reviewed-by: Yung-Chieh Lo <yjlou@chromium.org>
Current implementation of queue_has_space doesn't handle the case where
queue tail has wrapped around the end. This CL fixes the bug.
BUG=None
TEST=Pass the test in the following CL.
BRANCH=link
Change-Id: I774f388081af50f0e930a6cbc3a723da1c8283b0
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58031
Reviewed-by: Yung-Chieh Lo <yjlou@chromium.org>
The IOUT pin of the smart battery charger can be used to monitor the AC
adapter current (default) or the battery charging current.
BUG=none
BRANCH=none
TEST=manual
Discharge the battery a bit, and connect to the EC console. With the AC
power plugged in, the "battery" command should show charging status,
including current.
The "adc" command will display the A-D converters, including the current
measurement. For example:
> battery
Temp: 0x0b88 = 295.2 K (22.1 C)
Manuf: SMP-COS20
Device: OC2
Chem: LION
Serial: 0x0005
V: 0x4130 = 16688 mV
V-desired: 0x41a0 = 16800 mV
V-design: 0x39d0 = 14800 mV
I: 0x008e = 142 mA(CHG)
I-desired: 0x0080 = 128 mA
Mode: 0x6001
Charge: 98 %
Abs: 94 %
Remaining: 1871 mAh
Cap-full: 1923 mAh
Design: 2000 mAh
Time-full: 0h:23
Empty: 0h:0
>
> adc
ADC channel "ECTemp" = 317
ADC channel "ChargerCurrent" = 455
>
That current is significantly higher than the "I:" reported by the "battery"
command. But look at the charger options:
> sbc 0x12
0x7904 (30980)
>
Bit 5 controls the IOUT Selection. When clear, it monitors the current from
the AC adapter. Set bit 5 to monitor the current provided to the battery:
> sbc 0x12 0x7924
> adc
ADC channel "ECTemp" = 318
ADC channel "ChargerCurrent" = 128
>
That matches what the smart battery sees.
Change-Id: I2fe351304421dfb22d83ef13d416aa44c9f56e8a
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57940
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This adds the initial support for Slippy's battery. The data I have is
unclear and incomplete, so this is NOT the final form. It seems to work
right now, and hasn't caught fire or anything, but it will need futher
tweaks.
BUG=chrome-os-partner:19976
BRANCH=none
TEST=manual (and watch it!)
Connect the EC console and watch what happens. You should see the battery
charging, discharging, etc. Keep an eye on it, though, and never leave it
unattended when on AC - we don't have the full data sheets available yet.
Change-Id: Id9bf93dc04a1399a9cdbc2156b3fac74be62038f
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57814
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The sbc command can be used to get/set registers from the smart battery
controller. The sb command already does that for the smart battery itself.
BUG=none
BRANCH=none
TEST=manual
Try it out.
Change-Id: Idaea451e58988ab2d6bc40164721cb5577d903af
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57813
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This is very similar to the BQ24725. There are just enough differences to
require a separate file.
BUG=chrome-os-partner:19976
BRANCH=none
TEST=none
Nothing to test until it's enabled.
Change-Id: I3247fcfde93ac75f5f9790acadc7feca28038608
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57811
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Just tweaking the build.mk file so that other batteries can be specified
for use by the same charging logic.
BUG=none
BRANCH=none
TEST=none
Change-Id: I01b39a6ffc4091b9b7824cf1759b36168f6f5701
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57810
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The two I2C commands for battery cut-off must be sent out back to back.
Thus we need to guard them with I2C port lock to prevent being
preempted.
BUG=chrome-os-partner:19901
TEST=Check battery cutoff still works.
BRANCH=spring
Change-Id: Iac51037432b108d4cac29d5c73cafa9ce2310b12
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57598
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
On Spring, we now have commands 'i2c' and 'i2cscan'. Currently if we
type 'i2c', it's rejected as it's also the prefix of 'i2cscan'. Since
'i2c' is a full match of a legal command, we should accept it.
BUG=None
TEST=On Spring, check 'i2c' invokes 'i2c' command, and 'i2cs'/'i2cscan'
invokes 'i2cscan' command. Also check 'i2' is still rejected.
BRANCH=all
Change-Id: I65c4c148a5a3e9b025554fa8165ba76da7bc312f
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57576
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Sometimes TSU6721 falls into a weird state where video dongle is
recognized as non-standard charger. Let's reset TSU6721 when EC boots,
so that we are guaranteed to have a clean state after initialization.
BUG=None
TEST=Keep doing Power+F3 reset. Doesn't see weird state anymore.
BRANCH=spring
Change-Id: Id09bb1721ae79804dc9b3300a2f3def850c2f70a
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57575
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This is needed to properly notify kernel of power changes.
BUG=chrome-os-partner:19925
TEST=Attach/remove power from video dongle, and see device type changes.
BRANCH=spring
Change-Id: Ic91ad43ed934be021689c4c4557914e6163e06f8
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57569
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Hard-reset triggers a pulse on the PMIC_RESET pin but this is hard to
see when debugging. By printing error message explicitly before
resetting the board, it's easier to tell why the board is resetting.
BUG=chrome-os-partner:19778
TEST=Trivial change. Build and boot on Spring. Make sure system is
alive.
BRANCH=spring
Change-Id: I26b749af2f8760339373c3e4db46c59d7b0d039e
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57101
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
The firmware defines had two almost-identical sets. Coalesce into one
consistent set.
Link had 256 KB flash, but only allowed 2 80KB images. Future
LM4-based platforms (slippy/peppy/falco/etc) will now use the entire
flash, with RO=124KB, pstate=4KB, RW=128KB. This matches what the
STM32 platforms do, where pstate is contiguous with the RO firmware.
No functional change to STM32-based platforms.
BUG=chrome-os-partner:19176
BRANCH=none
TEST=build all platforms and dump_fmap ec.bin.
- stm32-based platforms should report RO=61440@0, RW=65536@0x10000
- link should report RO=81920@0, RW=81920@0x14000
- slippy should report RO=129024@0, RW=131072@0x20000
Change-Id: I20b1d95c16250d9a5d228ead06eef03d96548823
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56655
This adds the option to specify which LED to control as well as the
ability to query the supported LED color on the board.
BUG=chrome-os-partner:19745
TEST=On Spring:
- ectool led 0 query -> See the max value for R, G, Y is 0x80.
- ectool led 1 query -> See error message.
- ectool led 0 yellow -> See LED turns yellow.
- ectool led 0 green=0x40 red=0x40 -> See green and red lit up.
- ectool led 0 auto -> See LED turns off (without charger.)
BRANCH=spring
Change-Id: Ibdde2f7450122f59383dad1030a0a2a985386f73
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56877
If the user plug in the charger really slowly, VBUS and GND will make
contact before ID pin. Currently timer is set to fire in 0.6 seconds,
which means ID pin need to make contact within 0.6 seconds after VBUS
make contact. This is causing chargers to be recognized as non-standard
charger. Let's extend this to 3.6 seconds.
BUG=chrome-os-partner:19765
TEST=Plug in a charger half-way through and see device type 0x20000.
Wait for 3.6 seconds, and see it changes to 0x60000.
TEST=Plug in a charger half-way through, wait for 2 seconds, and then
plug it in all the way. See device type 0x20010.
TEST=Plug in a charger to the end. See device type 0x20010 immediately.
BRANCH=spring
Change-Id: I46c408e7bc733fe4f3655db253f4065a4f12ee1a
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56772
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
If the AP is already on, the kernel should handle low-power event. We
shouldn't power off the system on sysjump.
BUG=chrome-os-partner:18318
TEST=None
BRANCH=spring
Change-Id: I4e80c61a25d2fa503d0c97e22dc2f4ad9c44f716
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56706
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
We are now using solid yellow for both charging and battery assist mode.
No need to use breathing yellow effect anymore.
BUG=chrome-os-partner:19747
TEST=Manual
BRANCH=spring
Change-Id: I9574ac7ef7137fc1d0ebe84316756fa28e9a84aa
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56732
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
When we use about the same amount of power as what the charger provides,
we sometimes show green LED. We should avoid this when the battery is
not full.
BUG=chrome-os-partner:19746
TEST=Manual
BRANCH=spring
Change-Id: Id31762aefe22535de64f63a023c35995a3725ef8
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56724
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This provides a way to control LED color with ectool. We can either set
the color or switch back to automatic control.
BUG=chrome-os-partner:19745
TEST=ectool led red -> LED turns red.
ectool led green -> LED turns green.
Unplug charger -> LED turns off.
ectool led green -> LED turns of and shows green.
ectool led auto -> LED back to normal.
BRANCH=spring
Change-Id: I0b455f34cea448660fe44a5fecaac1cb084f8144
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56721
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
When we try to set LP5562 LED to the same color as it is currently, we
should just skip the I2C commands. Let's cache its current color so that
we don't waste time on unnecessary I2C transactions.
BUG=chrome-os-partner:19705
TEST=Set LED color manually on spring and doesn't see it change. Unplug
and plug in the charger, and see LED goes back to yellow after few
seconds.
BRANCH=spring
Change-Id: I87e3cf7d53bccc45048ea64dad9925a362cddab7
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56716
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
While in fast mode, we step on the same PWM duty cycle which caused
over-current. We should avoid this.
BUG=chrome-os-partner:18301
TEST=None
BRANCH=spring
Change-Id: Ib22eb7244d1f6173d4486dce7b85a55678318490
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56674
Write protect signal naming is now consistent across boards.
New CONFIG_WP_ACTIVE_HIGH is present on systems where the write
protect signal is active-high (e.g. Link). This will be used in the
next CL, which moves flash_get_protect() to flash_common.c
BUG=chrome-os-partner:15613
BRANCH=none
TEST=flashinfo properly reports WP signal status
Change-Id: I502ab033c3eb36661cc3ee97320874b3fbf6fc0d
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56087
Reviewed-by: Vic Yang <victoryang@chromium.org>
Persistent state is needed by all platforms to hold the
protect-ro-at-boot flag. STM32F100 and LM4 implementations were
near-identical, and are now common code (with one #ifdef to handle the
single place where they weren't).
STM32L doesn't use pstate yet, but it'll need to. I can't simply
store the protect-ro-at-boot flag inside the WRP registers themselves
because they're still writable in EC-RW. The change to STM32L to use
pstate is coming next.
BUG=chrome-os-partner:15613
BRANCH=none
TEST=build pit, link, spring; on link and spring, do
- flashinfo -> (no flags)
- enable WP (via screw or dut-control)
- flashinfo -> wp_gpio_asserted
- flashwp enable
- flashinfo -> wp_gpio_asserted ro_at_boot
- flashwp now
- flashinfo -> wp_gpio_asserted ro_at_boot all_now (and possibly ro_now)
- flashwp disable -> fails
- flashinfo -> wp_gpio_asserted ro_at_boot all_now
- reboot ap-off
- flashinfo -> wp_gpio_asserted ro_at_boot ro_now
- disable WP (via screw or dut-control)
- reboot
- flashinfo -> ro_at_boot
- flashwp disable
- flashinfo -> (no flags)
(Note that on Spring you'll need to 'forceen on' before enabling WP,
or the console will be disabled once you enable ro_at_boot and reboot.)
Change-Id: I415388b98ec8bf1d149803aaaa7fe8c7f3076c36
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56064
This adds support for write protecting the RO code at boot, and the
entire flash on demand.
Implementation if WP# is not asserted is currently a little different
than STM32F and LM4; RO is still protected at boot if ro_at_boot, but
can be unprotected and the change will commit on the next reboot.
This saves the bank of flash which we use for pstate on LM4 and
STM32F. I think I can use one of the unused option bits (WRP2 bit 0)
to hold the RO-at-boot flag, in which case I can more closely match
the behavior of the other chips, but I'd like to do that (or give up
and implement pstate) in a separate CL so it's clearer what I'm doing.
BUG=chrome-os-partner:15613
BRANCH=none
TEST=manual
- flashinfo -> (no flags)
- enable WP (via screw or dut-control)
- flashinfo -> wp_gpio_asserted
- flashwp enable
- flashinfo -> wp_gpio_asserted ro_at_boot
- flashwp now
- flashinfo -> wp_gpio_asserted ro_at_boot all_now
- flashwp disable -> fails
- flashinfo -> wp_gpio_asserted ro_at_boot all_now
- flasherase 0x1fc00 0x400 -> fails
- reboot
- flashinfo -> wp_gpio_asserted ro_at_boot ro_now
- flasherase 0xfc00 0x400 -> fails
- flasherase 0x1fc00 0x400 -> succeeds
- disable WP (via screw or dut-control)
- reboot
- flashinfo -> ro_at_boot ro_now
- flashwp disable
- flashinfo -> ro_now
- reboot
- flashinfo -> (no flags)
- flasherase 0xfc00 0x400 -> succeeds
- flasherase 0x1fc00 0x400 -> succeeds
Change-Id: Id1b6b099a44a1985a5ab9387feb882a8f26e3aa1
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/55594
The "dumb" port power code was setting ports to enabled on S5
when it should be setting them to disabled. This changes it
to match the behavior of the "smart" port power code and its
own comment.
BUG=chrome-os-partner:19398
BRANCH=none
TEST=manual: poweroff slippy and watch USB ports get disabled
Change-Id: Ibc68450a973477341d9ca096ac5a6ddd08cef273
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56262
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
