| Commit message (Collapse) | Author | Age | Files | Lines |
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No code changes; just update comments with bug links
BUG=none
BRANCH=none
TEST=build all platforms
Change-Id: I8b845f9c43315b7db5a746a16c6618c3ee96979d
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174614
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Remove old TODO and function which no longer exists.
BUG=none
BRANCH=none
TEST=compile all platforms
Change-Id: I81c5ddb3d0e156d455be1af82f12d8d4f30e1bc8
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174393
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Previously, it was really confusing whether I2C_PORT_HOST meant the
port where the EC was the master, or the port used to talk to the AP.
No functional changes, just a global find/replace and some tidying of
unused comments.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all platforms; pass unit tests
Change-Id: Ia591ba4577d3399729556e0234ba0db3a0e3c5ea
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174546
Reviewed-by: Alec Berg <alecaberg@chromium.org>
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Rather than hackily sending a host response before sending the battery
cutoff command, just put the cutoff command in a deferred function
call and respond normally to the host command.
BUG=chrome-os-partner:23568
BRANCH=none
TEST=On battery power, 'ectool batterycutoff' prints success, then the
system loses power due to battery cutoff.
Change-Id: Ic42d08ef94a10f89d093290cda63da01fca985a5
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174573
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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This improves WiFi stability after resume since powering down may
erase or otherwise stymy the firmware.
Signed-off-by: Paul Stewart <pstew@chromium.org>
BUG=chrome-os-partner:22175
BRANCH=none
TEST=Suspend and resume samus, make sure WiFi is still operable
Change-Id: I91914482c2040abe0feecd94891fca01a176f667
Reviewed-on: https://chromium-review.googlesource.com/174258
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Paul Stewart <pstew@chromium.org>
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When we cleaned up the alternate function GPIO initialization, we left a
declaration for configure_fan_gpios() in fan.h. That function doesn't exist
anywhere, so there's no point in declaring it.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=manual
Build everything. Nothing fails.
Change-Id: I3d1fe1ff62e523aa7c87d57c5e838b01a0c6e899
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174334
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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It doesn't need to be compiled if there would be nothing for it to talk to.
BUG=chrome-os-partner:20739
BRANCH=none
TEST=build all platforms, pass unit tests
comment out chipset task in Rambi ec.tasklist; code still compiles
Change-Id: I004364b8c1fdf02c420162b5ad2843068a26b452
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174302
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Device-specific headers belong in driver/ or chip/. The include/
directory should be for common interfaces.
Code should not normally need to include driver-specific headers. If
it does, it should use the full relative path from the EC project root
(for example, drivers/charger/bq24715.h).
Change-Id: Id23db37a431e2d802a74ec601db6f69b613352ba
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173746
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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The common/ subdir was getting cluttered. Move drivers for external
components to a new driver/ tree, and move what used to be called
chipset_*.c to a new power/ directory.
This does not move/rename header files or CONFIG options. That will
be done in subsequent steps, since moving and modifying .c files in
the same CL is harder to review.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all boards; pass unit tests
Change-Id: I67a3003dc8564783a320335cf0e9620a21982d5e
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173601
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Tested-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
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This improves WiFi stability after resume since powering down may
erase or otherwise stymy the firmware.
Signed-off-by: Paul Stewart <pstew@chromium.org>
BUG=chrome-os-partner:22175
BRANCH=none
TEST=Suspend and resume bolt, make sure WiFi is still operable
Change-Id: Ia9e39464955b373e6f03a36ca5af5c475e957208
Reviewed-on: https://chromium-review.googlesource.com/174257
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Paul Stewart <pstew@chromium.org>
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CG_CTRL0 is already set to 2 by pmu_init_registers(), and the battery
charge rate hack was temporary.
BUG=chrome-os-partner:23425
BRANCH=none
TEST=build daisy
Change-Id: I863c8d6d5d5f30375dce14b7d2a30e9e710ef969
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173915
Reviewed-by: Jeremy Thorpe <jeremyt@chromium.org>
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The EC LPC implementation guarantees that the status byte will have at
least one zero bit, so there's no need to scan the parameter space as
well. Removing this unneeded check will slightly speed up ectool.
BUG=chrome-os-partner:10963
BRANCH=none
TEST=on an x86 chromebook (e.g. link), ectool hello still works
iotools io_read8 0x200 && iotools io_read8 0x204 -> not both 0xff
Change-Id: Ic02ca0ee686ab10e50093807717ec638aaa468c6
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174059
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Document some Pit-platform-specific assumptions.
No code changes.
BUG=none
BRANCH=none
TEST=build pit
Change-Id: I601ca4a57645ba45e7db01e271556a30d334f9cd
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174056
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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USB A-A cable works fine downloading firmware on pit now, so this
comment no longer applies.
BUG=none
BRANCH=none
TEST=build pit
Change-Id: I4f07108357ffcab590fd95ffb50955f60698a39e
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174047
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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This dev board hasn't seen much love. Add bug links for the unloved
bits and remove an empty interrupt handler.
BUG=chrome-os-partner:23494
BRANCH=none
TEST=build mccroskey
Change-Id: Ic521c6cba4ca438bf54f9ce77eb0cba99be57602
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174082
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Some of the comments no longer apply. Others needed more info.
No code changes; just comment changes.
BUG=none
BRANCH=none
TEST=build all platforms
Change-Id: I1d52aa9a98427a78c9d9a8cf44934fb04c3c00c8
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174084
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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The pin has a 100k series resistor, which is overwhelmed by the
internal pullup.
BUG=chrome-os-partner:23489
BRANCH=none
TEST=gpioget wp_l, with screw present and removed. With screw present,
signal should read 0; with it removed it should read 1.
Change-Id: I35ee867111d0d7e8626dd3ac8010e9a10f46ccf7
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174094
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This was temporary until bug 18778 was fixed - which it was, a while ago.
BUG=chrome-os-partner:23425
BRANCH=none
TEST=build puppy
Change-Id: I053867dcb1c3e74d0c09ac98a5c218bdca925317
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173799
Reviewed-by: Jeremy Thorpe <jeremyt@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
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There is an analog temperature line on the Samus battery connector. We don't
yet know what it means, but there's a pull-up on it, so if it's reading
close to ADC_READ_MAX, we can probably assume there's no battery.
This change says that any reading within 90% of ADC_READ_MAX means the
battery pack is not present, so we can go ahead and boot without trying to
wake it up first.
BUG=chrome-os-partner:23449
BRANCH=none
TEST=manual
Connect the battery, boot. It should happen quickly.
Disconnect the battery, boot. It should STILL happen quickly.
Running "adc" on the EC console should show an entry for "BatteryTemp". If
no battery is connected, it should read somewhere close to 4095.
Change-Id: I1e41bccb2a988d34de09192ebb0a68b91b1b0b24
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174046
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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A 16-element FIFO consumes 208 bytes of RAM, which isn't too horrible.
No code changes, just expanding on a comment.
BUG=none
BRANCH=none
TEST=build spring
Change-Id: Ibb51970b6fc72623435d21bd0b368c3e60da24da
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173922
Reviewed-by: Vic Yang <victoryang@chromium.org>
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The fixme was just a feature request. I've moved it to a new bug.
Comment change only; no code changes.
BUG=chrome-os-partner:23457
BRANCH=none
TEST=build rambi
Change-Id: Ie3fc0482b6697c12040b868ba837073929cf5b82
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173921
Reviewed-by: Vic Yang <victoryang@chromium.org>
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This code is pretty much the same across all x86 chipsets. In the
long run, maybe it should be moved to x86_common.c, but for now,
simply implement on bolt what we did on samus and all the other
haswell systems.
BUG=chrome-os-partner:20372
BRANCH=none
TEST=build bolt; don't have a bolt to test on
Change-Id: I01c2795192fcbd3980ed464c1e3e1dfb64fdb228
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173798
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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No code changes, just replacing a FIXME from the comments with a more
thorough explanation.
BUG=chrome-os-partner:20805
BRANCH=none
TEST=build falco
Change-Id: Ibd98322c2b9fd6e0447771ce5fe43e0283743c60
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173930
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Falco has shipped, so those numbers are evidently good enough.
Slippy is not being developed and won't be fixed. Simply note that
numbers are estimates.
Comment changes only; no code changes.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=build falco and slippy.
Change-Id: I064896235626af8a5b7214b410908bba91434f7f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173911
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Note that adapter current limits are specific to the given battery
charger chip used in falco. Since the file is named extpower_falco.c,
no additional fixing needed.
Comment change only; code is the same.
BUG=none
BRANCH=none
TEST=compile falco
Change-Id: I28d8b6c9335ec188c30f7c47fb2f8ecdda276bae
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173914
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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Changed the low power idle task to use the low speed clock in deep
sleep. The low power idle task is currently only enabled for Peppy,
Slippy, and Falco. This change decreases power consumption when
the AP is not running.
Note that the low speed clock is slow enough that the JTAG cannot be
used and the EC console UART cannot be used. To work around that,
this commit detects when the JTAG is in use and when the EC console
is in use, and will not use the low speed clock if either is in use.
The JTAG in use never clears after being set and the console in use
clears after a fixed timeout period.
BUG=None
BRANCH=None
TEST=Passes all unit tests.
Tested that the EC console works when in deep sleep.
Tested that it is possible to run flash_ec when in deep sleep and
using the low speed clock.
Change-Id: Ia65997eb8e607a5df9b2c7d68e4826bfb1e0194c
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173326
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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Rambi shares several of the control signals (CTL1, ILIM_SEL) between
both ports, and hard-wires some of the others (CTL2, CTL3). It still
has separate enable lines for each port.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=boot system; gpioget shows (in part)
1 USB_CTL1
0 USB_ILIM_SEL
1 USB1_ENABLE
1 USB2_ENABLE
Then do 'apshutdown' and gpioget shows
1 USB_CTL1
0 USB_ILIM_SEL
0 USB1_ENABLE
0 USB2_ENABLE
Change-Id: Ib3d321ca2b0aa7dce08ddd6633810a75641bc9a8
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173737
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
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Every chipset had its own header file just to declare a GPIO interrupt
handler. Since this seems to be a common feature of the power
interface, make a standard power_interrupt() API provided by
chipset.h. This lets us get rid of 4 include files, and makes it
easier to add more chipsets in the future.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all boards; pass unit tests
Change-Id: I1fc5612d42625ea46e0a8e16a83085b66d476664
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173745
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On many of the Haswell boards, RCIN# was attached to PL6, which is not
an open-drain capable GPIO. As a workaround, we toggle it to an input
to get it into a high-Z state. Now that we understand the problem,
document it and remove the FIXME tag from the comments.
Baytrail systems map RCIN# to a different pin, so don't need this
workaround at all.
BUG=chrome-os-partner:20173
BRANCH=none
TEST=build all boards; pass unit tests
Change-Id: I545a90a523e2967fad40bd47cb47a51983a37bdb
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173796
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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This pin should not be driven, it is the source of massive leakage
from PP3300_EC rail into PP3300_PCH.
BUG=chrome-os-partner:23449
BRANCH=samus
TEST=emerge-samus chromeos-ec, verifed with scope
Change-Id: I8b4ba7e2e842505244b2c7c55cd661ae9363dbad
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173839
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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These are changes ported from other haswell systems that are
useful in development. Pause in S5 can be used for power cycle
testing and the CPU throttle is important for runin since there
is no other active throttle methods.
BUG=chrome-os-partner:23449
BRANCH=samus
TEST=emerge-samus chromeos-ec
Change-Id: I8774a466141f2cdc671a5e14705ae29433f94981
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173838
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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This console command is useful during bringup to interrogate
devices on the EC I2C interfaces.
Ported from STM32 into the common file. This command now
takes an additional argument for the port to be used.
BUG=chrome-os-partner:23449
BRANCH=samus
TEST=emerge-samus chromeos-ec, tested on samus
Change-Id: I8308fbc2f34e369a20051dca9c5d43872f239777
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173837
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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The backlight controller EEPROM is not enabling PWM mode and
it is reloaded every time the backlight state is changed.
Since we no longer have signals indicating when the PCH is
enabling or disabling backlight this hack will read the
controller every second at runtime to determine if it needs
to enable PWM mode.
This should be removed with the next build when the EEPROM is
changed to enable PWM mode by default.
BUG=chrome-os-partner:23449
BRANCH=samus
TEST=emerge-samus chromeos-ec
Change-Id: I5c4acb1115acb7a4a5b04d09c1317778eeb2998d
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173836
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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Add the 6 on-board TMP006 sensors and I2C addresses.
BUG=chrome-os-partner:23449
BRANCH=samus
TEST=emerge-samus chromeos-ec
Change-Id: Id7fe37a9dda12c63dfbe5b8e2865902976f4b476
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173835
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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These were the changes from bringup to get the first boards
booting successfully.
Mostly minor stuff, some may not be entirely correct still.
- disable internal clkrun so it behaves the same as other
boards, this can be experiemented with later but is too much
extra change during bringup
- enable 1.8V internal pullup since it is missing external
- wait for 1.5V and 1.2V PGOOD to ensure 5V rail is up
- turn on 3.3V DSW rail in S5, it can be disabled later at
runtime in theory but it is required for booting
- turn on USB in S3
- specific wireless bringup sequencing, WLAN power should
be first but the generic wireless function does it in the
other order.
BUG=chrome-os-partner:23449
BRANCH=samus
TEST=emerge-samus chromeos-ec
Change-Id: I698438f21651ce001e74790855bb7f7260d8bdaf
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173834
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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The new boards will be populated with STM32L100RBT6,
so let's update the CHIP_VARIANT accordingly.
This is backward-compatible with the STM32L151RBT6 which is soldered on
older boards (it just doesn't use the full memory).
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=boot the system on Nyan reworked with STM32L100RBT6
Change-Id: I73a4c587c7dc3646777166606e06f3dfaed2400c
Reviewed-on: https://chromium-review.googlesource.com/173633
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: David James <davidjames@chromium.org>
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stm32l100 is mostly identical to stm32l151,
excepted that the RAM is smaller (10kB instead of 16kB for the RB SKU),
the EEPROM is smaller, there is no touch capability (but we are not
using those 2 features).
So, in the new stm32l100 variant configuration, we adjust the memory
size to 10kB and keep the regular UART RX buffer size (512 B) rather
than putting a 2kB buffer to fit in the new constraints.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=run on discovery board reworked with stm32l100rct6 and Nyan
reworked with stm32l100rbt6.
Change-Id: Ifd78f59a102b3079f0f794af8058211dc724153d
Reviewed-on: https://chromium-review.googlesource.com/173632
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: David James <davidjames@chromium.org>
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This is to add nyan board support:
- new files in board/nyan folder, including battery.c
- new common/chipset_tegra.c, which is mostly based on
chipset_gaia.c
- new include/tegra_power.h
- modified build.mk and flash_ec for nyan
BUG=none
BRANCH=nyan
TEST=tested on Venice 2 board
Change-Id: I36895f34f2f4d144a9440aff358c8274797ebbd6
Signed-off-by: Yen Lin <yelin@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/168078
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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Basic tests are actually working for most LM4-based boards. Let's
re-enable them except for Bolt and Samus. These two boards have
board-specific chipset code, which fails test compilation.
BUG=chrome-os-partner:18598
TEST=Run affected tests on Link
TEST=util/make_all.sh
TEST='make tests' for all board
BRANCH=None
Change-Id: I46bc39c14ec43ccc29e9b0c46f349cac2755e684
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172982
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Jeremy Thorpe <jeremyt@chromium.org>
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One of our partners was getting confused by the incorrect comments.
Daisy, Snow and Pit use STM32xxxx parts with 128KB flash, but
the comments indicated that they use 64KB parts.
BUG=none
BRANCH=none
TEST=locally compiled
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Change-Id: I13035ca9fb0e4cb05f46df250f6b9079a799dd64
Reviewed-on: https://chromium-review.googlesource.com/172663
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: David Hendricks <dhendrix@chromium.org>
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Add some missing descriptions in config.h and rename a few defines to
be more consistent.
No functional changes, just comments and symbol renaming.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all platforms; pass unit tests
Change-Id: I05a9a2ed6fd7bc8b14a18a0dc57d7d22430de21a
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173111
Reviewed-by: Vic Yang <victoryang@chromium.org>
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The chipset module prints debugging information about the state of
power good lines and chipset signals, but those have previously been
decodable only by looking at the EC source code.
Change the 'x86indebug' command to print a decoder ring.
BUG=chrome-os-partner:22895
BRANCH=none
TEST=x86indebug prints a list of bit meanings
Change-Id: I10eb653e23d19ece10635e5de61cd53b0d4d33d5
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173089
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The SUS_STAT# from the SoC doesn't have a pullup resistor stuffed
on the other side of the FET separating the 1.8V and 3.3V signals.
Therefore use the internal pull.
BUG=None
BRANCH=None
TEST=Built and loaded on a rambi. SUS_STAT# doesn't appear to float any
more.
Change-Id: I7478697b68b4539c17876722a7a913901bf1c0bc
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172851
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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Rather than scan the entire GPIO table, stop as soon as all interrupt
bits have been handled. We hand-order the table so GPIOs with
interrupts are first, so this should reduce interrupt overhead.
BUG=chrome-os-partner:23296
BRANCH=none
TEST=boot rambi
x86indebug -1
apshutdown
powerbtn
...That should print lots of 'x86 in' debug messages as pins
change state, showing that the interrupt handlers are still responding.
Change-Id: I7942cd51870ad51de068d90d68cf6634ff2fb1a0
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173031
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
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Like other chipset code files, we shouldn't compile Baytrail chipset
code if chipset task is absent.
BUG=None
TEST=basic tests now compile on Rambi without error
BRANCH=None
Change-Id: I231de06310b2e0d7ff7b3e1e21bbff89636cd5c0
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172980
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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First implementation of a low power idle task for the LM4 chip. The
low power mode is selected by defining CONFIG_LOW_POWER_IDLE in a
board.h file. This commit turns it on for Peppy, Slippy, and Falco
only because those are the only boards tested.
When using the low power idle task, the chip goes in to deep sleep
when it can. Deep sleep disables clocks to most peripherals and puts
the onboard flash and RAM into a low power mode. The chip is woken
out of deep sleep using the RTC in the hibernate module. Increased
the idle task stack size to handle more involved idle task.
In board.c, the array of GPIO info can be used to select which GPIO
points can wake up the EC from deep sleep. Currenlty selected are
the power button, lid open, AC present, PCH_SLP_S3, and PCH_SLP_S5.
Additionally the port with the KB scan row GPIO point is also
enabled to wake up the EC from deep sleep.
Signed-off-by: Alec Berg <alecaberg@chromium.org>
BUG=None
BRANCH=none
TEST=Passes all unit tests. Runs on slippy, peppy, and falco with no
noticeable side affects. Verified that the power consumed by the EC
is lower when in S3, S5 and G3 by scoping the sense resistor
powering the chip.
Change-Id: I83fa9a159a4b79201b99f2c32678dc4fc8921726
Reviewed-on: https://chromium-review.googlesource.com/172183
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Alec Berg <alecaberg@chromium.org>
Tested-by: Alec Berg <alecaberg@chromium.org>
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When the EC CPU is running at a decreased clock frequency, frequent
keyboard scans can starve other EC tasks of CPU and lead to dropped
data or watchdog timeouts.
Enforce a minimum number of EC clocks between keyboard scans to
prevent this from happening. The default chosen (16000 clocks) is
equal to the shortest post-scan delay (1 ms) of any current board when
the AP is in S0, so this should have no effect when the AP is in S0.
When the AP is in S3 or S5, we don't need to scan the keyboard as
frequently anyway. This can be overridden on a per-board basis for
future boards if needed.
BUG=chrome-os-partner:23247
BRANCH=pit
TEST=apshutdown, then hold down a key for 10 seconds. Should not see a
watchdog reset.
Change-Id: I228f53a32ad4769f6a137a9ab06903111bea115d
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172895
Reviewed-by: Vic Yang <victoryang@chromium.org>
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Rambi's Silego chip inverts the pull as well as the signal. So it has
a pulldown for the signal instead of a pullup. The EC must drive the
signal push-pull, since open-drain only works for signals with pullups.
BUG=chrome-os-partner:23198
BRANCH=none
TEST=type on keyboard; C/D/E/3/F1-F4 should all work
Change-Id: Iaea4f540c523824571a568b70cca3e0fb467f79c
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172915
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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On HASH_START command, we should also fill in hash status in response so
that the caller sees BUSY status in response.
BUG=chrome-os-partner:23067
TEST=Along with u-boot change, corrupting EC RW followed by a warm reset
doesn't result in shutdown.
BRANCH=All
Change-Id: Ie0c1b35d71bc0420b011f0413f92feb88138db4d
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172380
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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Fixed backlight bug on Falco.
BUG=chrome-os-partner:23270
BRANCH=none
TEST=Tested to make sure the backlight comes on for Falco.
Change-Id: Ia74801fdae8ce2d96d03223a95cb0704ddc1f4b0
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172940
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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