Commit Graph

2083 Commits

Author SHA1 Message Date
Randall Spangler
a27fb9cfdc cleanup: Remove obsolete comment in STM32 GPIO module
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>
2013-10-22 23:18:05 +00:00
Randall Spangler
87af5f257c cleanup: More detail in todo comments for mccroskey
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>
2013-10-22 23:17:27 +00:00
Randall Spangler
9ccd9668a2 cleanup: update comments with existing bug numbers
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>
2013-10-22 22:23:53 +00:00
Randall Spangler
7f3ca9fb65 rambi: Remove internal pullup from write protect pin
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>
2013-10-22 22:18:40 +00:00
Randall Spangler
ba0b7bf32d puppy: remove temporary workaround in pmu chipset startup
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>
2013-10-22 21:41:33 +00:00
Bill Richardson
2f327fbfa6 samus: Use analog BAT_TEMP as presence indicator
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>
2013-10-22 21:41:09 +00:00
Randall Spangler
99d52c8874 cleanup: FIFO comment in MKBP driver
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>
2013-10-22 17:56:20 +00:00
Randall Spangler
a318cc9068 cleanup: Remove fixme from ec_commands.h
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>
2013-10-22 17:55:42 +00:00
Randall Spangler
600e36d664 bolt: Implement prochot
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>
2013-10-22 01:13:40 +00:00
Randall Spangler
712177cf14 cleanup: Thermal comments
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>
2013-10-22 01:13:34 +00:00
Randall Spangler
06133e98d8 cleanup: Remove battery temperature fixmes for falco and slippy
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>
2013-10-22 01:13:16 +00:00
Randall Spangler
8e13fec4b8 cleanup: Comments in extpower_falco.c
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>
2013-10-22 01:11:57 +00:00
Alec Berg
10bd1db6d7 lm4: Use low speed clock in deep sleep.
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>
2013-10-21 23:59:38 +00:00
Randall Spangler
1d6687429c rambi: Support USB port power control
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>
2013-10-21 21:10:40 +00:00
Randall Spangler
d9530449fd cleanup: Consolidate power interrupts
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
2013-10-21 21:10:36 +00:00
Randall Spangler
15e2fa02fd Clean up documentation of RCIN# open-drain workaround
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>
2013-10-21 21:10:13 +00:00
Duncan Laurie
4e3da1eff2 samus: Make RCIN_L be open drain
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>
2013-10-21 20:05:48 +00:00
Duncan Laurie
6b4e6e66e7 samus: Add the pause_in_s5 support and fix CPU throttle
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>
2013-10-21 20:05:44 +00:00
Duncan Laurie
35916b4bc1 i2c: Add common i2cxfer console command
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>
2013-10-21 20:05:41 +00:00
Duncan Laurie
2d37bb2a64 samus: Add hook/hack to enable backlight PWM
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>
2013-10-21 18:36:27 +00:00
Duncan Laurie
992a610761 samus: Add TMP006 sensors
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>
2013-10-21 18:36:24 +00:00
Duncan Laurie
ed00ca0576 samus: changes from bringup to boot
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>
2013-10-21 18:36:19 +00:00
Vincent Palatin
8b9251b804 nyan: switch chip variant to STM32L100RBT6
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>
2013-10-19 07:27:22 +00:00
Vincent Palatin
3507e33fdc stm32: add stm32l100 variant
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>
2013-10-19 07:27:18 +00:00
Yen Lin
140404ffdf ec: add nyan board
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>
2013-10-17 22:52:12 +00:00
Vic Yang
99472d5cb5 Re-enable basic tests for most LM4-based boards
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>
2013-10-17 09:24:13 +00:00
David Hendricks
da8b8defb6 Correct the EC name in the build.mk comments for some boards
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>
2013-10-17 01:46:14 +00:00
Randall Spangler
737160dd5d cleanup: Config defines
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>
2013-10-16 22:24:42 +00:00
Randall Spangler
1a0fcc27bb x86: x86indebug command should print bit defintions
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>
2013-10-16 01:52:30 +00:00
Aaron Durbin
09c88c34e8 rambi: pullup SUS_STAT#
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>
2013-10-15 18:21:20 +00:00
Randall Spangler
301fd86115 lm4: GPIO interrupt handler scans through fewer GPIOs
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>
2013-10-15 18:21:14 +00:00
Vic Yang
c856d14424 Do not compile Baytrail chipset code if chipset task is absent
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>
2013-10-15 15:29:52 +00:00
Alec Berg
c5b90d7e77 lm4: Add a low power idle task.
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>
2013-10-15 00:27:14 +00:00
Randall Spangler
193f2298bd Enforce a minimum number of clocks between keyboard scans
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>
2013-10-14 23:27:31 +00:00
Randall Spangler
1049bbbad8 rambi: Fix driving keyboard column 2
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>
2013-10-14 23:27:28 +00:00
Vic Yang
027be6fdbb Return hash status on HAST_START command
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>
2013-10-14 23:27:11 +00:00
Alec Berg
73589dbb66 falco: fixed backlight bug
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>
2013-10-14 23:26:59 +00:00
Randall Spangler
1006187c61 Add baytrail power sequencing
This is an initial version of power sequencing for the rambi rev.1
boards.  It has a workaround for a rev.1 board problem; this requires
turning on PP5000 early.

BUG=chrome-os-partner:22895
BRANCH=none
TEST=AP should power on to S0 (PLTRST# deasserts) automatically when EC boots
     Then 'apshutdown' should drag it back to G3.
     Then 'powerbtn' should take it back to S0.

Change-Id: Id9bc6fe9b55fce3eb46ce1265891724ec7a4ae20
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172675
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2013-10-11 03:58:09 +00:00
Randall Spangler
a1191b92d2 rambi: Keyboard output column 2 must be inverted
The Silego chip used on Rambi inverts column 2.  So the EC should pull the signal low when NOT scanning column 2, and release it at all other times.

BUG=chrome-os-partner:23198
BRANCH=none
TEST=not yet; need to probe on scope

Change-Id: If6a784493533f11ae54d18f27591697e69aa2282
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172674
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2013-10-11 03:58:05 +00:00
Alec Berg
27e063ea10 lm4: Modified clock gating to allow easy expansion to low power.
Created a new function to enable or disable clocks to various
peripherals. This new function makes it easy to specify if you
want the clock enabled in run mode, sleep mode, and/or deep
sleep mode.

Added infrastructure to specify which GPIOs should interrupt the
EC from deep sleep.

BUG=none
BRANCH=none
TEST=Passes all unit tests. Ran on a peppy and verified that
the clock gate control registers in run mode (LM4_RCGC regs)
were the same before and after this change.

Change-Id: Ia5009ac8c837f61dca52fe86ebdeede2e1a7fe4d
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172454
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-10-10 23:14:20 +00:00
Alec Berg
f7e69a211c Fix bug with hibernate delay when running off battery
Fixes hibernate delay logic for chipset x86. With this change
the machine will go in to hibernate one hour after going into G3
when running off battery.

BUG=chrome-os-partner:23224
BRANCH=none
TEST=Used console command hibdelay to set a reasonable hibernate
delay time and tested all combinations of running off battery vs.
AC and shutting off before or after the machine has been on for
a hibdelay amount of time.

Change-Id: Idd94d3677669dcd405732195b8cbbc1edca1e171
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172512
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-10-10 16:40:58 +00:00
Aaron Durbin
6a46446ccc rambi: fix leakage on pp3300_pch_s5 rail
PWRBTN_L is pulled up to PP3300_PCH_S5 through a 30K resistor. However,
the PWRBTN_L pin was configured push-pull. So we are leaking into that
rail. Fix this by configuring it to be open drain.

BUG=chrome-os-partner:23221
BRANCH=None
TEST=Loaded new EC with change and noted the PP3300_PCH_S5_PG is driven
     low correctly once the PP5000_DSW rail is up an SUSP_VR_EN=0.

Change-Id: Id6d5079ca0c11c36b00ed913be378f53b48f27f3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172520
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-10-10 16:40:46 +00:00
Bill Richardson
2fb228c198 cleanup: Don't use [N] = {} when initializing arrays
If we do this:

  enum foo_v {
    FOO_A,
    FOO_B,
    FOO_COUNT
  };

  struct foo_t foo[] = {
    {...},
    {...},
  };
  BUILD_ASSERT(ARRAY_SIZE(foo) == FOO_COUNT);

Then we can be sure we're at least initialized all the elements of foo,
although there's no particular guarantee that the order is correct.

However, if we use this:

  struct foo_t foo[] = {
    [FOO_A] = {...},
    [FOO_B] = {...},
  };

and we accidentally get one wrong:

  struct foo_t foo[] = {
    [FOO_B] = {...},
    [FOO_B] = {...},
  };

Then the assertion still passes, but we've only initialized one element.

Don't do that.

BUG=chrome-os-partner:18343
BRANCH=none
TEST=manual

Refactoring only. Build everything. It should still work.

Change-Id: I58f659207990f18c6fb74b1cac2ec1163cdb07ea
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172115
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-10-10 15:16:06 +00:00
Randall Spangler
ff8c8fee79 rambi: Control LEDs using PWM
Rambi has a pair of LEDs which are attached to the PWM fan controller.
Add support for them.  Also add a generic 'pwmduty' command which can
be used to get/set the duty cycle for any PWM channel.

Also fix rounding errors in pwm module, so that set/get duty doesn't
keep rounding down.

BUG=chrome-os-partner:22895
BRANCH=none
TEST=Boot rambi. LEDs are off.
     pwmduty -> both are 0%
     pwmduty 0 10 -> green LED on dimly
     pwmduty 1 10 -> red LED on dimly
     pwmduty 0 99 -> green LED on brightly
     pwmduty 1 100 -> red LED on brightly
     pwmduty 1 0 -> red LED off
     pwmduty 1 -1 -> red LED turns back on because fan controller is disabled
     pwmduty -> channel 0 at 99%, channel 1 disabled
     Build all platforms.  Pass all unit tests.

Change-Id: Ib0a6289a757554e696a9a0153a85bdc34e2ee2ae
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172094
2013-10-08 20:41:32 +00:00
Randall Spangler
99157c265c cleanup: Battery header files and filenames
battery.h is the high-level interface.  battery_smart.h is the
low-level interface.  Most things don't need the low-level interface,
but were including smart_battery.h solely to get at battery.h.  Fixed
this.  Also merged battery_pack.h into battery.h, since it was odd to
split that data across multiple header files.  Tidied the function
comments in battery.h as well.

No functional changes, just renaming files and adding comments.

BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all boards; pass unit tests

Change-Id: I5ef372f0a5f8f5f36e09a3a1ce24008685c1fd0d
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171967
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-10-07 18:30:50 +00:00
Randall Spangler
90a6676ad5 cleanup: Move board-specific LED state machines to board dirs
The LED state machine ends up being very board-specific, as does the
specific configuration of LEDs and whether they're PWM'd or just
GPIOs.  dparker has some clever ideas for how to move more of the
functionality to common/led_common.c (used at present only by peppy);
that will be done as a follow-on to this CL.

There's a unit test for the spring LED implementation.  To keep that
compiling, just use a symlink to the spring-specific implementation.

No code changes; just moving around files.

BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all boards; pass unit tests

Change-Id: I5973e701a29a72575db9a161dc146855ab21cca6
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171771
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-10-07 18:30:45 +00:00
Bill Richardson
57aaa0267e cleanup: Replace awkward I2C_PORTS_USED macro with constant
We only used I2C_PORTS_USED to iterate through the list of hardware ports
actually in use, but we defined it in board.h at the same place where we
matched particular I2C devices to the (possibly shared) buses they're on.

This CL makes I2C_PORTS_USED into a global constant, so it can be set
automatically where we initialize the ports, and doesn't have to be
related to the list of attached devices.

BUG=chrome-os-partner:18343
BRANCH=none
TEST=manual

Build everything, run all tests, should still work.

Change-Id: I65f22f5cadfc4b3afe51af48faa5fb369bc3aa09
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171884
2013-10-07 16:20:59 +00:00
Duncan Laurie
616cc446e2 bolt: Make fan min/max be the same as link
The fan was not spinning enough to cool the system because it thought
the max fan speed was 5000.

BUG=none
BRANCH=bolt
TEST=build and boot on bolt, generate load and see that the fan comes
on to a reasonable level to cool the system.

Change-Id: Ifa5023534a6be8625abf7df7fa44aed649f4fabc
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171969
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-10-05 21:00:30 +00:00
Bill Richardson
e98db03d3b samus: Add battery_is_connected check
Copied from Bolt.

This is so the 30-second wait when no battery is installed can be skipped.

Note that if we ever decide to monitor the battery temp through the BAT_TEMP
line, we'll have to rethink how battery_is_connected() is implemented, since
we can't reliably treat that GPIO as both digital and analog simultaneously.

BUG=chrome-os-partner:22870
BRANCH=none
TEST=manual

  cd src/platform/ec
  make BOARD=samus
  make runtests

Change-Id: Ifea952c8f99b2b40c2fab382e949958a2f71d157
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171796
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2013-10-04 20:04:49 +00:00
Bill Richardson
9af47b787c samus: alternate functions, charger
Adding some more board-specific configurations for Samus.

BUG=chrome-os-partner:22870
BRANCH=none
TEST=manual

  make runtests

Change-Id: I86c909e899fb5bdb6ba75f476ced58bae2c75c29
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171809
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-10-04 20:04:44 +00:00