Commit Graph

2189 Commits

Author SHA1 Message Date
Vic (Chun-Ju) Yang
0e0bc8bbbd mec1322: Add support for VBAT backed RAM
This will be used for saving data across reboots.

BUG=chrome-os-partner:24107
TEST=Enable scratchpad command and check value is preserved across
watchdog reboot.
BRANCH=None

Change-Id: Ifd68541a3f842c466b6ff49bcc654c92df48aac6
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/178276
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-12-02 04:54:15 +00:00
Vic (Chun-Ju) Yang
8d2fc77326 mec1322: remove the ugly DUMMY() macro in system.c
DUMMY() is ugly and DUMMY_int() makes repo complain. Replace them with
explicit functions.

BUG=chrome-os-partner:24107
TEST=Build mec1322_evb
BRANCH=None

Change-Id: I155b769c12cafaf432c7f53fd46806feada3cfca
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/178275
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-12-02 04:54:12 +00:00
Vic (Chun-Ju) Yang
84db5c7549 mec1322: Deassert iRESET_OUT on init
iRESET_OUT must be deasserted before the host can boot, and it's also
the gating source of the internal nSIO_RESET signal. There is a delay
between deasserting iRESET_OUT and nSIO_RESET inactivated, so let's
deassert iRESET_OUT as early as possible.

BUG=chrome-os-partner:24107
TEST=Boot EVB and check iRESET_OUT value
BRANCH=None

Change-Id: I6647da00567e2651c2b49e1e767adee2d5276493
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/178171
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-27 13:38:30 +00:00
Vic (Chun-Ju) Yang
a981a1fa16 mec1322: Add more register address and IRQ numbers
No functional changes. Just adding more chip-specific constants.

BUG=chrome-os-partner:24107
TEST=Build mec1322_evb
BRANCH=None

Change-Id: I649ad2656da941c28a2a738007ced955cd25ea75
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/178170
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-27 13:38:27 +00:00
Vic (Chun-Ju) Yang
009dd17588 mec1322: Add GPIO interrupt support
With this, we can now define and trigger interrupt on GPIO status.

BUG=chrome-os-partner:24107
TEST=Test GPIO036 with following cases:
       - Pulled up and rising edge trigger. Pull down externally and
	 then release.
       - Pulled up and falling edge trigger. Pull down externally.
       - Pulled up and both edge trigger. Pull down and then release.
       - Pulled up and low level trigger. Pull down externally.
BRANCH=None

Change-Id: Id9bfd2ba9dd8a75bcf2c5691ffe2aa6518076925
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177560
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-26 19:35:27 +00:00
Vic (Chun-Ju) Yang
0892ff6418 mec1322: Add script for packing EC binary into SPI flash
This script is needed for packing EC binary into SPI flash for MEC1322.
This includes adding tag and header at appropriate location and signing
the image. Signing key, for obvious reason, is not included here until
we are sure what key we want to check in.

BUG=chrome-os-partner:24107
TEST=Build and boot on eval board
BRANCH=None

Change-Id: I92db7d2ba2c76c14a9c6611a04dbd6a2c3eb8d83
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177324
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-26 18:19:14 +00:00
Vic (Chun-Ju) Yang
3f82ac3579 mec1322: Add watchdog support
This implements the basic watchdog support. For now, the watchdog
doesn't warn us before it expires. This functionality will be added
later using a basic timer.

BUG=chrome-os-partner:24107
TEST='waitms 700' and the EC stays alive.
TEST='waitms 1200' and the EC reboots.
BRANCH=None

Change-Id: I1cc48978ed09577ae88cc2f7a6087867e5854973
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177736
2013-11-26 18:19:10 +00:00
Randall Spangler
7f3ed512db gpio: Make GPIO_INT_BOTH explicitly RISING|FALLING
For historical reasons on LM4, we defined GPIO_INT_F_BOTH separately
from GPIO_INT_F_RISING and GPIO_INT_F_FALLING.  This means that the
code has weird checks like BOTH || (RISING && FALLING), which have
propagated in error-prone ways across the other chips.

Instead, explcitly define BOTH to be RISING|FALLING.

Ideally, we would have called it GPIO_INT_EDGE to match
GPIO_INT_LEVEL, but changing that now would be a big find-replace.
Which might still be a good idea, but that is best done in its own CL.

BUG=chrome-os-partner:24204
BRANCH=none
TEST=build and boot pit, spring, and link; that covers STM32F, STM32L, and LM4.

Change-Id: I23ba05a3f41bb14b09af61dc52a178f710f5c1bb
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177643
Reviewed-by: Jeremy Thorpe <jeremyt@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
2013-11-23 05:11:31 +00:00
Aaron Durbin
11aed2342e rambi: fix PP3300_LTE_EN gpio
The gpio table had the wrong pin assigned to
PP3300_LTE_EN. It should be D4 instead of D2.

BUG=chrome-os-partner:24201
BRANCH=None
TEST=Built and booted. Stuff shows up on lsusb, and I can confirm
     3.3V on the bulk caps of the IO board.

Change-Id: I574599645ce21c175346e2ecde35b974aa0b68f7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177694
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Randall Spangler <rspangler@chromium.org>
2013-11-23 05:11:26 +00:00
Yen Lin
b29aba1921 nyan: change power button long press timeout to 10.2 seconds
The worst case of the ONKEY long press timeout of AS3722 PMIC is
10.08 seconds, according to AMS. Increase of such timeout defines
to 10.2 seconds.

BUG=nvbug 1372063
BRANCH=nyan
TEST=verified on Venice2 boards that were failing to turn off power
     with 9 seconds timeout

Change-Id: I65c8ebaab0523874ceff621cdbda72d8b44f4864
Signed-off-by: Yen Lin <yelin@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/177611
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-23 02:33:43 +00:00
Yen Lin
2f084199ca nyan: change EC_BL_OVERRIDE to GPIO_ODR_HIGH
If EC_BL_OVERRIDE is low, backlight will be turned off. To allow AP to
control backlight, set EC_BL_OVERRIDE to high.

BUG=none
BRANCH=nyan
TEST=verified on nyan board 2.0 to see backlight turns on when system
     boots up

Change-Id: I04e6052fbef4b17c3f9566c8c5cf691a2710b7b0
Signed-off-by: Yen Lin <yelin@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/177553
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
2013-11-23 02:33:36 +00:00
Randall Spangler
34b94121c7 Remove bolt, daisy, kirby, puppy, slippy boards
These boards are unloved and unsupported.  They'll never grow up to be
laptops, and hardware is increasingly hard to come by.

Comparable functionality is available in the other, more-loved boards.

Removing these boards speeds up util/make_all.sh by 40%.  (If you're
not running that before every upload, you should be...)

BUG=chrome-os-partner:24062
BRANCH=none
TEST=build all remaining platforms and pass unit tests

Change-Id: I4d8a49e4d52d7393471f1b1cbef059c8db4a4f77
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177373
2013-11-21 22:21:56 +00:00
Bill Richardson
f7dba327a2 Add DPTF interface for fan duty
This adds include/dptf.h to define the DPTF interface functions.

As the first DPTF feature, it also adds a register to the EC's ACPI
interface block. Register 0x04 is used to get and set the fan's target duty
cycle, as a percentage value. Writing a 0 to this register will set the
target duty cycle to 0, writing a 100 (0x64) will set it to 100%. Writing
any other value will return the fan control to the EC, rather than driving
it manually from the host.

Likewise, reading from this register returns the current fan target duty
cycle, as a percentage. If the EC is controlling the fan automatically, the
returned value will be 0xFF.

BUG=chrome-os-partner:23972
BRANCH=none
TEST=manual

You can monitor the fan state from the EC console with the "faninfo"
command. From the host side, test this interface from a root shell.

Read fan duty:

  iotools io_write8 0x66 0x80
  iotools io_write8 0x62 4
  iotools io_read8 0x62

Set fan duty to 100%:

  iotools io_write8 0x66 0x81
  iotools io_write8 0x62 4
  iotools io_write8 0x62 100

Set fan duty to 50%:

  iotools io_write8 0x66 0x81
  iotools io_write8 0x62 4
  iotools io_write8 0x62 50

Set fan duty to 0%:

  iotools io_write8 0x66 0x81
  iotools io_write8 0x62 4
  iotools io_write8 0x62 0

Set fan control back to automatic:

  iotools io_write8 0x66 0x81
  iotools io_write8 0x62 4
  iotools io_write8 0x62 -1

Change-Id: I91ec463095cfd17adf452f0967da3944b254d558
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177423
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-21 22:21:34 +00:00
Aaron Durbin
24fdf4e554 rambi: use gpio for keyboard irq
The rambi board has issues using the SERIRQ method
for triggering the keyboard IRQ. Namely, the current
level-shifter in place for the bidrectional SERIRQ
signal introduces delay resulting in the SERIRQ
being out of phase with the clock. Moreover, there
appears to be a mismatch of expectations with the
number of start frames on the SEIRQ line. Bay Trail
uses a fixed 8 while the TI docs suggest it only
supports 6.

BUG=chrome-os-partner:23965
BRANCH=None
TEST=Built and booted rambi with keyboard working in
     kernel with interrupts.
CQ-DEPEND=CL:177223

Change-Id: I05c2b113d801b3fc434a402620cebae0301839f2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177189
Tested-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-21 07:17:19 +00:00
Aaron Durbin
8db204073a lm4: add option for using gpio as kebyoard interrupt
On certain boards it's no feasible to use the SERIRQ
method for generating the kebyboard interrupt. To that
end provide CONFIG_KEYBOARD_IRQ_GPIO option which
specifies the negative edge-triggered gpio for the
keyaboard interrupt.

BUG=chrome-os-partner:23965
BRANCH=None
TEST=Built and booted rambi using this option. Keyboard
     works in kernel with interrupts for i8042 device.

Change-Id: I64f7e9530841c184d2a33821126ec446c96bb0f0
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177188
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-21 04:31:08 +00:00
Vic (Chun-Ju) Yang
14c7191b53 mec1322: initial commit
This is the initial commit of mec1322 support. This includes:
  - Basic GPIO driver. Interrupt not supported yet.
  - Microsecond timer
  - UART driver

The script to pack the firmware binary will be checked in in
following-up CL.

BUG=chrome-os-partner:24107
TEST=Build and boot on eval board
BRANCH=None

Change-Id: I9013c908049d1f740f84bb56abca51b779f39eef
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175716
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-21 04:30:55 +00:00
Randall Spangler
5524ba7bf7 cleanup: More comments in timer.h
Indicate when usleep() and udelay() may be called.

No code changes, just comments.

BUG=none
BRANCH=none
TEST=Build any platform.  Heck, it's just comments.

Change-Id: I0182c153c29965b25d5294d838c1406c30115099
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177452
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-21 00:09:09 +00:00
Randall Spangler
7f5019c9e3 Reduce stack space used by vfnprintf()
Converting some of the boolean variables in vfnprintf() to a single
flags word reduces stack usage by 8 bytes and function size by 12
bytes.  So it's slightly more efficient in both respects.

Confirmed size and stack usage improvements via 'make BOARD=rambi all
dis' and looking at the disassembly for vfnprintf()

BUG=chrome-os-partner:24148
BRANCH=none
TEST=Run taskinfo command twice and compare stack used by CONSOLE task.
     Run timerinfo and charger commands and verify output looks reasonable;
     those exercise binary and 64-bit number printing.

Change-Id: Ie4396bb0bc01dc155956fa2d8ca84c6630006729
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177400
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-20 18:43:56 +00:00
Randall Spangler
abf4fb8392 spring: Increase stack for keyscan task
The keyscan task is short enough on stack space that turning on
keyboard debugging causes a stack overflow.  This was previously not
the default, but https://chromium-review.googlesource.com/#/c/174373/
made it the default.  Reverting that change just masks the problem;
enabling keyboard debugging on Spring would still cause a stack
overflow.

Rather than reverting that change, increase the stack size of the
keyscan task so that it doesn't overflow.  There is sufficient space
to do this.  Even after increasing the keyboard stack from 256 bytes to
320 bytes and doing a 'sysjump rw' to force jump tags to populate,
'shmem' reports 132 bytes free.

BUG=chrome-os-partner:23834
BRANCH=none
TEST=Boot Spring.
     ksstate on
     Bang on keyboard for a bit
     taskinfo -> shows KEYSCAN task at 292/320 bytes free
     sysjump rw
     shmem -> shows 132 bytes free, 0 used

Change-Id: Idf9fdce5b9e6ca4d05d80a62ae9ea831ed508e3a
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177355
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-20 01:15:43 +00:00
Randall Spangler
d72084463a rambi: Pause between S5 and G3 states
This gives the AP a chance to reboot, before the EC kills it by dropping rails.

BUG=chrome-os-partner:24120
BRANCH=none
TEST=on AP, write 0xe to 0xcf9; system should reboot instead of shutting down

Change-Id: I322a1193e90b4de37a4adaf547e1c6bf5be077c3
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177305
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2013-11-19 23:16:26 +00:00
Randall Spangler
5a35eddf3e stm32f: Disable UART receive DMA
Not sure why, but it doesn't seem to work consistently on my Spring.
Transmit works fine, but on some boots receive doesn't seem to pick up
received characters.  Rather than churning Spring to fix this, just
disable receive DMA - which doesn't benefit Spring much anyway,
because it never downclocks its core to 1 MHz.

BUG=chrome-os-partner:24141
BRANCH=none
TEST=Boot Spring; typing into console works.  After 'apshutdown', typing still
     works (including arrow keys).  Repeat 20 times.  Repeat on Pit.

Change-Id: I5d9875b583c8e2a38b9070c4dfa31fd5a982a144
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177352
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-19 23:16:21 +00:00
Randall Spangler
af2c11e3e3 stm32: Flush UART buffer before changing EC core clock speed
Otherwise UART output gets garbled because there's a delay between
changing core clock and the UART divider.  Fortunately, the glitch is
cosmetic and doesn't affect proper EC operation.

BUG=chrome-os-partner:23982
BRANCH=none
TEST=power on, power off on pit or nyan --> no UART glitch

Change-Id: I32bef119b850a340fc616b83a4b088b20f17267f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177087
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
Tested-by: Yung-chieh Lo <yjlou@chromium.org>
Commit-Queue: Yung-chieh Lo <yjlou@chromium.org>
2013-11-19 18:30:16 +00:00
Louis Yung-Chieh Lo
082d8b2e2d nyan: supports immediate 'power off'.
Poll down AP_RESET_L pin to shutdown AP immediately, instead of
press the power button for 8 secs.

BRANCH=nyan
BUG=chrome-os-partner:23895
TEST=verified on nyan board 2.0 with follwoing tests:
    power off / power on: PASS. Tested 5+ times.
    lid close / power off / lid open: PASS. Tested 5+ times.
    button on / off: PASS. Test 5+ times. ~20% not boot (HOLD=1).
    power off / button on: PASS. Tested 5+ times.
    button off / power on: PASS. Test 5+ times. ~60% not boot (HOLD=1)
    button off / lid open: PASS. Test 5+ times. ~40% not boot (HOLD=1)

Change-Id: Iecc97f38ac7bd923745994594356029836d7b4e6
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177241
2013-11-19 06:06:52 +00:00
Aaron Durbin
02995b2d6f rambi: use gpio for SCI# assertion
For some reason the SCI# is not working properly when the
LPC module controls the pad. Instead, utilize CONFIG_SCI_GPIO
option and put that GPIO pad into open-drain mode.

BUG=chrome-os-partner:24003
BRANCH=None
TEST=Built and booted rambi with dependency change. 'lidclose' and
     'lidopen' cause ACPI interrupts.

Change-Id: I5df455bc2fc9af4c43517a93c5a35dc598fd54e9
Reviewed-on: https://chromium-review.googlesource.com/176805
Tested-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Aaron Durbin <adurbin@chromium.org>
2013-11-18 17:54:00 +00:00
Aaron Durbin
83ec930b36 lm4: allow the lpc module to use GPIO for SCI
The LPC module has a dedicated control for SCI#.
However, certain situations require a dedicated
GPIO for asserting the SCI# signal.

Introduce CONFIG_SCI_GPIO to meet this requirement.

BUG=chrome-os-partner:24003
BRANCH=None
TEST=Built and booted rambi with dependency change. 'lidclose' and
     'lidopen' cause ACPI interrupts.

Change-Id: I34c5f0ba5ff60151972921f251c71d3769a9ef8b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176804
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-15 01:39:42 +00:00
Vincent Palatin
4b59746600 util: declare all host utils source dependencies in build.mk
Instead of hardcoding the common files for host utils in the generic
rules, let's declare them in the build.mk file using the same system as
the Linux kernel build.

if a binary "foo" declared in "host-util-bin" or "build-util-bin" has a
matching "foo-objs" variable, it will be build from all objects declared
in "foo-objs" else it uses directly "foo.o" (single source file).

This is preparatory to add new "build" tools sharing common sources.

note: the dependencies on the utils are a bit less fine-grained as a
result of this change, but given the low number of tools, that should be
acceptable.

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

BRANCH=none
BUG=none
TEST=./util/make_all.sh

Change-Id: Ieffce7ca6f5b685ffb7d1f4626b99aff07b61443
Reviewed-on: https://chromium-review.googlesource.com/176174
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-14 17:52:39 +00:00
Louis Yung-Chieh Lo
d44932402a Remove the printf prompt in idle task.
A cprintf could increase 96+ bytes of stack usage and may overflow
the stack of idle task, which is 256 bytes on stm32.

BUG=chrome-os-partner:23982
BRANCH=nyan
TEST=verified on nyan

Change-Id: If96a1c51010116a2b4f3d67481ec0acc7bf78dd9
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176619
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-13 22:24:34 +00:00
Duncan Laurie
bec6b5c93c samus: Fix ACOK buffer on chipset state transitions
The ACOK buffer from EC to PCH was not being triggered when
the chipset powers up or down, instead it was only triggering
when AC state was changed.

Since we want it to be driven in S5 I added HOOK_CHIPSET_PRE_INIT
to the power sequence in the G3S5 state transition.

BUG=chrome-os-partner:23752
BRANCH=none
TEST=power on samus proto1b with AC inserted and see PCH_ACOK
go high, power off and see it go low again.  Ensure that it is
also changed with AC state transitions.

Change-Id: I4cbe123322e234dc07f10fd1cdff5a8b771a4e02
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176630
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-13 07:07:57 +00:00
ChromeOS Developer
9a568cc154 Add boardversion command to ectool
BRANCH=none
BUG=chromium:318342
TEST=Run "ectool boardversion" on device with and without support
for board ID. Note, boards without support will return an error.

Signed-off-by: Dave Parker <dparker@chromium.org>
Change-Id: Ib7599570c84a7ed5cf70ce9d8336467785b35569
Reviewed-on: https://chromium-review.googlesource.com/176543
2013-11-13 05:19:09 +00:00
Duncan Laurie
034e06febf samus: Fix backlight panel interrupt
The backlight_interrupt() function is defined to NULL if the magic
CONFIG_BACKLIGHT_REQ_GPIO is not defined.

Enabling that exposed an issue where the backlight workaround was
attempted in interrupt context and should instead be deferred since
it involves i2c transactions.

BUG=chrome-os-partner:23752
BRANCH=none
TEST=build and boot on samus proto1b and see recovery screen

Change-Id: Id1377033c791a5c279fdb4faeecc4b2c0d142eaa
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176514
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-13 05:19:05 +00:00
Bill Richardson
33f29160a0 Specify I2C channels physically, not arbitrarily
In board.c, we initialize this struct:

struct i2c_port_t {
	const char *name;  /* Port name */
	int port;          /* Port */
	int kbps;          /* Speed in kbps */
};
extern const struct i2c_port_t i2c_ports[];

The port field refers to the physical I2C bus on the EC.

Meanwhile, in board.h, we've identified the bus where each I2C device is
attached:

Up until this CL, we've been picking one of those device-to-bus macros to
initialize port fields of the i2c_ports[] array. That's wrong and confusing.

This change specifies the physical channel with the physical number.

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

Renaming only. There should be no change in observed behavior.

Change-Id: I5427c26290572133f060b6cf0d9ebea5015adba1
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176176
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
2013-11-11 23:47:05 +00:00
Bill Richardson
eb70d3cda7 Use explicit sizes for lightbar_params fields.
The struct lightbar_params used to communicate lightbar settings between the
AP and the EC uses just "int" for some of its fields. The AP currently uses
32-bit values for "int" in both 64-bit and 32-bit mode, but that's just luck
since C only requires that "int" be at least 16 bits.

This change makes the size explicit.

BUG=none
BRANCH=none
TEST=manual

There should be no visible change.

ectool lightbar params > /tmp/foo
ectool lightbar params /tmp/foo

Change-Id: I4d77c16b3c68e179292b824938d2d012e917ad13
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176364
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
2013-11-11 22:31:16 +00:00
Alec Berg
b2a2821b4d rambi: Add low power idle to rambi
Added low power idle functionality to rambi but left it off by default.
To turn it on, define CONFIG_LOW_POWER_IDLE in rambi's board.h file.

BRANCH=none
BUG=chrome-os-partner:23947
TEST=Verified that the EC does not go into deep sleep when in S0, and that
it does go into deep sleep in S3, S5, and G3. Tested to make sure that
flashec works when the EC is in low speed deep sleep. Also verified
that the EC console times out after the timeout period and that it wakes
up on the next command. Did not measure power usage.

Change-Id: I0ab1a2dc7ca7ae4577fe5d0894c1bf82205dfea6
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176159
Reviewed-by: Todd Broch <tbroch@chromium.org>
2013-11-09 04:39:00 +00:00
Louis Yung-Chieh Lo
308e02195d Take XPSHOLD back.
The XPSHOLD is not floated. It connects to +1.8V_VDDIO, which indicates
high when AP is on. So, bring it back.

Also remove the duplicated GPIO definition (GPIO_PWR_LED1).

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

BUG=chrome-os-partner:23929
BRANCH=nyan
TEST=verified on nyan. successfully boot up the machine.

Change-Id: I293a899bcdf255f36f6117627f66ed8231c9a70f
Reviewed-on: https://chromium-review.googlesource.com/176046
Reviewed-by: Yen Lin <yelin@nvidia.com>
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
Commit-Queue: Yung-chieh Lo <yjlou@chromium.org>
Tested-by: Yung-chieh Lo <yjlou@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-08 00:53:27 +00:00
Bill Richardson
1d2845d2db Add EC_MEMMAP_ALS, update it once per second
This adds space for up to two ALS lux readings to be available to the AP
through the memory-mapped LPC region. If enabled, the values are updated
once a second.

The ALS will be reinitialized at every AP resume, since it's typically
unpowered otherwise. The reported value will be zero when the ALS is off.

BUG=chrome-os-partner:23380
BRANCH=samus
TEST=manual

Boot the AP, then from the EC console run "als" or just monitor the
memory-mapped region directly ("rw 0x40080780" on Samus), while pointing the
sensor at bright and dim areas. The value should change.

Change-Id: I705371fcd57345dc9adae1231ea30c7ff024aaf8
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176142
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-08 00:53:12 +00:00
Alec Berg
277f1c1e5c ite: Added functionality to ITE In-system programming tool.
Added ability to erase and program flash to iteflash.

BRANCH=none
BUG=chrome-os-partner:23576
TEST=generate random 192kB file, write it to the ITE chip, read flash
back and make sure file read in matches file written.

Change-Id: Id525b43e523a3d710ee65b623fec07800cf7f347
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176022
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-08 00:53:05 +00:00
Bill Richardson
f23e68d721 Add ALS driver for light sensors connected to EC
This adds the driver and a console command to read an Intersil ISL29305
light sensor connected to the EC.

BUG=chrome-os-partner:23380
BRANCH=samus
TEST=manual

Run the "als" command from the EC console, while pointing the sensor in
various directions. It should give higher numbers when facing a light
source.  If you get "Error 1", it means the ALS isn't powered.

Change-Id: I855ed64dab7fc60e29126ab3e97669be24dc6a64
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176056
2013-11-07 23:42:56 +00:00
Randall Spangler
bb9b335e31 stm32: Don't use a stack buffer for i2c_read_string()
We read a counted string (byte 0 = count, bytes 1 - count = chars) and
convert it to a null-terminated string.  Since both have a 1-byte
overhead, we can use the destination buffer instead of using a
stack-based buffer.

BUG=chrome-os-partner:23928
BRANCH=none (pit is affected, but battery console command isn't used on
       end user systems)
TEST=battery command shows correct strings (SDI / 4302D40 / LiP), and doesn't
     stack overflow.

Change-Id: Ic0f111cde2d57b41d6ce9287e0c771acc09a8869
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176116
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-07 23:42:43 +00:00
Vincent Palatin
03de7bee72 Move core-specific toolchain configuration to core/ directory
This is preparatory work to introduce a second core architecture.

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

BRANCH=none
BUG=chrome-os-partner:23574
TEST=./util/make_all.sh

Change-Id: Icae8a7e475a4ba2a13f0d8f95629e8498a5a61da
Reviewed-on: https://chromium-review.googlesource.com/175419
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2013-11-07 22:36:05 +00:00
Randall Spangler
e2f851aae2 Enable stack overflow checking on all context switches
Changes somewhere in the recent past have caused I2C operations to
consume more stack space.  The current failure mode is that after some
debug command or infrequent battery operation, the system fails.

Clean up and enable stack overflow detection by default, and add a
debug command (disabled by default) to verify overflow detection
works.

This adds several instructions to each context switch, but it's still
fairly inexpensive, and represents only a few percent increase in the
size of svc_handler().  That's better than silent failures.

BUG=chrome-os-partner:23938
BRANCH=none
TEST=Enable CONFIG_CMD_STACKOVERFLOW, then run the 'stackoverflow' command.
     This should cause a stack overflow to be detected in the CONSOLE task.

Change-Id: I9303aee5bd9318f1d92838b399d15fb8f6a2bbf9
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/176113
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-07 22:35:56 +00:00
Vincent Palatin
a5d2fa9fb4 ite: Add IT8380 In-system Programming tool
use the IT8380 SMB0 interface connected to the Servo FTDI chip
to access the internal flash.

The write-protect is not implemented.

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

BRANCH=none
BUG=chrome-os-partner:23576
TEST=check waveforms on the Logic analyzer.

Change-Id: Ic3402e4e8def731fe4f2fe93be254f5fd0982abf
Reviewed-on: https://chromium-review.googlesource.com/175677
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
2013-11-07 03:43:57 +00:00
Bill Richardson
6c126f559a Cleanup: only compile battery_vendor_params() when enabled
Bolt uses Link's battery, but doesn't override the smart battery charge
profile with CONFIG_BATTERY_VENDOR_PARAMS. But the image still compiles and
includes the battery_vendor_params() function, although it's never called.

This CL stops doing that.

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

Build all targets.

Confirm that Link still has battery_vendor_params():

  $ make BOARD=link
  $ nm build/link/common/charge_state.o  | grep vendor
           U battery_vendor_params
  $ nm build/link/driver/battery/link.o | grep vendor
  00000009 T battery_vendor_params
  $

Confirm that Bolt does not have battery_vendor_params():

  $ make BOARD=bolt
  $ nm build/bolt/common/charge_state.o  | grep vendor
  $ nm build/bolt/driver/battery/link.o | grep vendor
  $

Change-Id: I48a535208bdcfd3d2cb26f6f15a28a728dbe4d0b
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175731
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-05 22:46:09 +00:00
Bill Richardson
d64de2bb1b Show smart battery status with 'battery' command
The smart battery status register holds some useful info. This displays it
along with all the other stuff.

This decodes the alarm and status bits, but not the error code, since that
field is only valid immediately after a failed i2c transaction (that's how
the battery indicates error). Since we do all sorts of automatic battery
probing in other threads, that value will never be reliable when we run the
"battery" console command.

BUG=none
BRANCH=none
TEST=manual

Run "battery". You should see a new line amongst the output:

  Status:    0x00c0 DCHG INIT

Change-Id: I5e684198af2cf7767f89786c91a7d946ad95d4c2
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175659
2013-11-05 22:45:21 +00:00
Alec Berg
48dfd8c5ee lm4: Fixed low power idle doesn't always wake up.
Temporary fix to the bug in which we miss wake events when in deep
sleep with the LFIOSC (32kHz) clock and the EC is cold. This fix
involves simply using a faster clock, 250kHz, when in low speed
deep sleep. This fix consumes more power but solves the bug.

Renamed EC console command dsleepmask to dsleep.

BRANCH=none
BUG=chrome-os-partner:23678
TEST=Go in to low speed deep sleep by going into either S3 or G3
and letting the EC console timeout. Then freeze-spray the EC chip.
Wake up the EC via the console and make sure that the idlestats
show that we have not missed a deadline.

Change-Id: I4f9844f1937bc8c95cf1540502f7d8fb4cbc097e
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175614
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-05 03:38:08 +00:00
Randall Spangler
c47e4ec7d1 rambi: Set correct input current limit
Rambi has a 65W adapter, so shouldn't be asking for 4A @ 19V.

BUG=chrome-os-partner:23597
BRANCH=none
TEST=charger command shows I_in = 3392 mA (which is the closest step below
     3.42A that the charger can set).

Change-Id: I4b044b594566a6abcb94c3f674a0d287c8fc2b30
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175611
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-05 02:33:12 +00:00
Louis Yung-Chieh Lo
53aca69b7b Add TODO for TODO_XPSHOLD.
The TODO line was accidentally removed in the last CL.

BUG=None
TEST=None
BRANCH=None
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>

Change-Id: Ia37e0f6bf21e072c714512d2eaa7ad69ef5fad93
Reviewed-on: https://chromium-review.googlesource.com/175632
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
Commit-Queue: Yung-chieh Lo <yjlou@chromium.org>
Tested-by: Yung-chieh Lo <yjlou@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2013-11-05 02:32:57 +00:00
Randall Spangler
efb6bc7655 Pad jump tags to 4 bytes inside the system module
That way all the users of jump tags don't need to know about the
padding requirements.

BUG=chrome-os-partner:23851
BRANCH=none
TEST=enable CONFIG_CMD_JUMPTAGS, then 'jumptags'.  Output should be
     something like this:

     20007fbc: 0x5550 UP.1  2
     20007fc4: 0x4b42 KB.2  3
     20007fcc: 0x4c50 LP.1 12
     20007fdc: 0x4d54 MT.1  8

     All the addresses in the first column should be word-aligned.  The
     sizes in the last column don't need to be a multiple of 4.

Change-Id: I91f9c29701a007ef8a56b5b7e0ea09930dfbea31
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175591
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-05 02:32:40 +00:00
Randall Spangler
5d672b91a7 Clean up hook priorties on LM4
Fan no longer needs a special priority to wait for the host memmap to
become available, since LPC inits earlier.

I2C and PECI don't need explicit ordering on freq change.

Thermal now uses the explicit prio for temp sensors done.

Commented hook test.

BUG=chromium:314768
BRANCH=none
TEST=boot link; enable/disable PLL; verify fanset and temps commands work afterwards.

Change-Id: I71766614dff2950dd307acd0635405e6b59e330a
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175601
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-04 23:15:38 +00:00
Louis Yung-Chieh Lo
e297b72563 Refine GPIO list of Nyan.
Refine the GPIO list according to the schematic.  Comment out the XPSHOLD in
power/tegra.c for compiling. Will fix later.

BUG=None
BRANCH=None
TEST=emerge-nyan chromeos-ec &&
make runtests -j 32 && make BOARD=nyan tests -j 32

Change-Id: Id0d682fd5d48e8a8a07785e86c07f45f07d866ab
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175534
2013-11-04 20:44:50 +00:00
Randall Spangler
c1e02ca220 cleanup: Yes, even more TODO comments
Almost done.  Comment changes only.

BUG=chrome-os-partner:18343
BRANCH=none
TEST=build all platforms

Change-Id: I974dfc12aa264e2035b3bae35a089c19344e7d45
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175484
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
2013-11-04 19:48:49 +00:00