Commit Graph

44 Commits

Author SHA1 Message Date
Randall Spangler
90afebac64 Strip out vboot signature code and stay in RO for link
BUG=chrome-os-partner:10880
TEST=boot EC; should stay in RO and not do signature check
(verify via debug console output)

Signed-off-by: Randall Spangler <rspangler@chromium.org>

Change-Id: I831aa91f8273bc7fb1a624cf36d9f21d52d8f3d8
Reviewed-on: https://gerrit.chromium.org/gerrit/26115
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Randall Spangler <rspangler@chromium.org>
2012-06-26 13:58:53 -07:00
Simon Glass
d5cb026142 Enable checking for divide by 0 and alignment faults
These likely indicate errors, so we shold trap them. Possibly this
should be reconsidered for production.

BUG=chrome-os-partner:10148
TEST=manual:
build on all boards
build and boot on snow with a special rw command containing a division
by 0. See that it is trapped:
> rw 0

=== EXCEPTION: 03 ====== xPSR: 01000000 ===========
r0 :0000000b r1 :08005eba r2 :00000000 r3 :20001048
r4 :00000000 r5 :08004fd4 r6 :08004f8c r7 :200012a8
r8 :08004fd4 r9 :00000002 r10:00000000 r11:00000000
r12:00000000 sp :200009a0 lr :08002861 pc :0800368a
Divide by 0, Forced hard fault, Vector catch
mmfs = 02000000, shcsr = 00000000, hfsr = 40000000, dfsr = 00000008

Turn off the cpu_init() setup, and see that it is ignored.

> rw 0
read 0x0 = 0x00000000
>

Similarly, try an unaligned access with the rw command with this enabled:

> rw 1

=== EXCEPTION: 03 ====== xPSR: 01000000 ===========
r0 :0000000b r1 :00000041 r2 :00000001 r3 :200012ac
r4 :00000000 r5 :08004fd4 r6 :08004f8c r7 :200012a8
r8 :08004fd4 r9 :00000002 r10:00000000 r11:00000000
r12:00000000 sp :200009a0 lr :08002861 pc :08003686
Unaligned, Forced hard fault, Vector catch
mmfs = 01000000, shcsr = 00000000, hfsr = 40000000, dfsr = 00000008

but disabled it works:

> rw 1
read 0x1 = 0x5d200010
>

Change-Id: Id84f737301e467b3b56a7ac22790e55d672df7d8
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/25410
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2012-06-21 06:01:22 -07:00
Simon Glass
fb425cf11f Unify the watchdog API over stm32 and lm4
Use the same prototype for watchdog_init() everywhere. One version takes
a parameters and one doesn't. We don't need the parameter since we have
a #define. Tidy this up.

Also move watchdog defines into watchdog.h.

BUG=chrome-os-partner:10145
TEST=build for all boards

Change-Id: I38ae63d7cc137b93017c850e767703d5f90f56ad
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/24394
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2012-06-05 09:30:21 -07:00
Randall Spangler
7ecd1d6d3c Add system_is_locked() to prevent sysjump on consumer systems
This returns true when both HW and SW write protect are enabled.

Once WP is enabled, sysjump will be locked out.

system_is_locked() can be used to gate other dangerous-ish commands too.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7468
TEST=manual

sysinfo -> unlocked, copy A
sysjump B -> works
flashwp lock
reboot
(make sure flashinfo shows WP asserted and flash locked; note there is a
 HW bug on proto1 which makes this flaky)
sysinfo -> locked, copy A
sysjump B -> fails
(remove WP screw)
reboot hard
flashwp unlock

Change-Id: I849b573675c2c1cb4c44b9a05d6973e38247ca23
2012-05-25 15:03:47 -07:00
Randall Spangler
27e8bdb7c0 Maintain timer value across sysjumps and clean up init debug output
This helps us keep track of how long vboot is taking on the EC.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:9651
TEST=reboot system and look at debug log.  time shouldn't start over after it jumps to image A.

Change-Id: Iad86e90d42dabf1c67b2c2be80dda1151cf9a288
2012-05-11 13:36:34 -07:00
Randall Spangler
2f2a5d9022 Call timer_init() before other interrupts are initialized
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:9647
TEST=hack code to put a uart_puts() immediately following uart_init()
It shouldn't crash.

Change-Id: Ia1867a631934dbd457a23183010fdf9f5c284873
2012-05-11 12:29:59 -07:00
Vincent Palatin
9f7fa4e800 make verified boot feature optional
this fixes the build breakage on stm32-based platforms.

In the linker script, remove the ASSERT since this macro is not designed
to work in that context and this size condition is already verified by
the linker by setting the "length" of the "FLASH" memory region.

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

BUG=None
TEST=make BOARD=link && make BOARD=daisy
boot on Link and Daisy

Change-Id: I08964749d44f47caa0a359bc93c303a9611e5d73
2012-05-02 15:57:43 +00:00
Randall Spangler
1aa57e140e Watchdog fixes
1) When frequency changes, reload the watchdog timer right away, or it
may expire before the next reload.  (Only matters when re-enabling the
PLL.)

2) Split out the timer/task debug output used by the watchdog into
their own routines, instead of assuming it's safe to call the command
handlers.  Also make the flushes in those print routines safe to call
from interrupt level.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=waitms 1500; should print task dump again

Change-Id: I07e0ed24a526ae499566dab0bbeb0f5755cd5be6
2012-04-25 14:49:49 -07:00
Randall Spangler
7ecb8358b9 Disable PLL at end of init
This saves power.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:8798
TEST=manual

Get a proto1 system modified with INA current sensor

1) From chroot:
  dut-control i2c_mux_en:on i2c_mux:rem
  dut-control pp3300_alw_mv pp3300_alw_ma

2) From EC console:
pll
(this should turn the PLL back on; it'll report clock frequency ~66MHz)

3) From chroot:
  dut-control i2c_mux_en:on i2c_mux:rem
  dut-control pp3300_alw_mv pp3300_alw_ma
Current (ma) should be bigger than in step 1

Change-Id: I806953684c57fd60bf481acb01dddffe2f2ad0ed
2012-04-24 09:59:31 -07:00
Louis Yung-Chieh Lo
913473db71 Keyboard hook up for SYSJUMP and INIT.
During the reboot_ec command, the keyboard state is lost after jump.
We need to restore info including:
  - code set
  - controller_ram[0]:
    - XLATE
    - KB/TP disabled
    - KB/TP IRQ enabled

Remove the un-necessary keyboard_init() function.

BUG=chrome-os-partner:9102
TEST=tested on link.
EC runs on A
% ectool reboot_ec A
keyboard still working
% ectool reboot_ec RO
keybaord still working
% ectool reboot_ec RO
keybaord still working
ESC + power yo reset all system
repeat above steps and the keyboard keeps working.

Change-Id: I0fe21f7876459fc8047ff018fbfaaef5311cc49b
2012-04-23 17:57:41 +08:00
Randall Spangler
f4e772708b Added HOOK_INIT for driver module inits
This covers modules which need to initialize before task_start(), but
don't particularly care in what order they're initialized.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=if it boots, it works

Change-Id: I69829aac8d1c3c14ee04916a794b84bbf03a09eb
2012-04-19 13:08:58 -07:00
Randall Spangler
ee3edc0116 Clean up inits
We can clear the reset cause in system pre-init now because of a
previous change which preserves it across a sysjump.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=if it boots, it works

Change-Id: I1d8b99df5a0be0de9545d22ad1a6b7fb3140f813
2012-04-19 11:08:28 -07:00
Louis Yung-Chieh Lo
755a767c2b Fixed the bug that reboot_ec resets the keyboard state to disabled.
The reboot_ec command could warm boot the EC while the host is still
running. However, this resets the internal state so that the keyboard
module is disabled on the EC side.

Check the reset cause during the keyboard init code. If it is wrm boot,
enable the keyboard (assume the host is on).

BUG=chrome-os-partner:9102
TEST=on link 1.0
% ectool version
Firmware copy: RO
% ectool reboot_ec RO
the keyboard keeps working.

Change-Id: I0009c561e2cd88789e50f9129b494538e50ee00e
2012-04-18 10:45:28 +08:00
Simon Glass
9fa4246a8d Initialize SPI on start-up
Now that we have a SPI driver, we must init it when we start up.

BUG=chromium-os:28925
TEST=build on daisy and discovery; run on daisy

Change-Id: I84b458d3ebc3fed9368dce8e06d040dbfc4e9125
Signed-off-by: Simon Glass <sjg@chromium.org>
2012-04-13 10:24:12 -07:00
Randall Spangler
322eebbae4 Add fake developer switch
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:8884
TEST=manual

  optget fake_dev_switch --> 0
  optset fake_dev_switch 1
  optget fake_dev_switch --> 1
  optset fake_dev_switch 0
  optget fake_dev_switch --> 0

Reboot by holding ESC+D and tapping power

  optget fake_dev_switch --> 1

Reboot by holding ESC+F and tapping power

  optget fake_dev_switch --> 0

Change-Id: Iccb3bc8b3d571e551e204892769efc4161858055
2012-04-10 14:09:40 -07:00
Randall Spangler
ed33516e2e Preserve reset cause when jumping between EC images
BUG=chrome-os-partner:8718
TEST=manual

1) Use 'reboot' command from console to boot image.  Should end up in
image A, with last reset reason soft cold.  'sysinfo' should show we
jumped to this image.

2) sysjump RO.  Should end up in RO; otherwise same as 1)

3) reboot using Power+Esc+Reload.  Should end up in image RO, with last
reset reason reset pin.  'sysinfo' should show we did not jump to this
image.

4) sysjump A.  Should end up in A with reset reason reset pin.
'sysinfo' should show we jumped here.

Change-Id: I2dd5595eab4ba2c91bfe8b2b2e9677d7732aca63
Signed-off-by: Randall Spangler <rspangler@chromium.org>
2012-04-03 09:26:25 -07:00
Randall Spangler
b2ac77b37b Support warm reboot from one EC image to another.
This is necessary at init-time for verified boot to jump from RO to
one of the RW images.

It's also used by factory EC update to update one image and then jump
to the updated image to finish the update.  In this case, the x86 does
NOT reboot.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:8449
TEST=manual

1) power on x86 and log in
2) sysjump a  --> system is in a; x86 has not rebooted
3) sysjump ro --> system is back in RO; x86 has not rebooted
4) reboot -> system is in RO; x86 HAS rebooted

Change-Id: I9dbadcf9775e146a0718abfd4ee0758b65350a87
2012-03-19 15:41:14 -07:00
Randall Spangler
2a9f80d2d9 More cleanup of board/chip configs and initialization
More modules can be disabled individually through CONFIG_ defines.

Reordered early module pre-init and init, and added comments to
explain why things are ordered in main() the way they are.

Fixed a few assorted init-related bugs along the way, like st32m
keyboard scan double-initializing.

BUG=none
TEST=build link, bds, daisy

Signed-off-by: Randall Spangler <rspangler@chromium.org>

Change-Id: I04a7fa51d743adfab4be4bdddaeef68943b96dec
2012-03-19 09:04:56 -07:00
Randall Spangler
e68844824b Clean up chip/board configs for LM4
Board-specific features like lightbar should be config'd at the board
level, not at the chip level.

BUG=none
TEST=build link, bds, daisy

Change-Id: If1df2ca0422f7b8bdc172d0df7bd9f6a1af6a9d2
Signed-off-by: Randall Spangler <rspangler@chromium.org>
2012-03-16 14:02:59 -07:00
Randall Spangler
a9f4794edb Add support for 1-wire protocol and power adapter LEDs
BUG=chrome-os-partner:7498
TEST=powerled {off, red, yellow, green}

Signed-off-by: Randall Spangler <rspangler@chromium.org>

Change-Id: I48beaad94d75c0ec30a969ea4b0e35f54e052085
2012-03-16 11:03:13 -07:00
Vincent Palatin
e456584ce1 Fix test build
Allow to build without the power button task.

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

BUG=None
TEST=make qemu-tests

Change-Id: Ibc757a6641f195f0d10e6a673792b996694f8cec
2012-03-15 21:25:48 +00:00
Bill Richardson
a4f5e0c29c Add vboot_init() function in correct place, make it do the switching.
Jumping (currently rebooting, see crosbug.com/p/8100) to the RW image should
be done by vboot_init(), not vboot_pre_init().

As currently written, vboot_init() has to come AFTER these function calls:

  task_init();             // sets up interrupts so that uart will work
  watchdog_init(1100);     // in case we fall over somewhere
  uart_init();             // we'd REALLY like to see some debugging output
  system_init();           // may go away with crosbug.com/p/8100
  keyboard_scan_init();    // check for F3 to go to recovery mode
  flash_init();            // maybe set RO regions (this should come earlier!)
  eeprom_init();           // this is where the try_b flags are kept

BUG=chrome-os-partner:7459
TEST=none

Signed-off-by: Bill Richardson <wfrichar@chromium.org>

Change-Id: I0ec3f6bcc26a308bb1005a944990963853b88b60
2012-03-13 10:17:50 -07:00
Randall Spangler
7e508c0d34 Clean up debug console output
Also prints the current timer value when inits are done, and when the
watchdog task first gets to run (after all higher priority tasks sleep
at least once).

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=none

Change-Id: I342f86ad087fd18ab064a10a5bcdd0b69ee373d0
2012-03-06 09:28:47 -08:00
Vincent Palatin
a94e3277b3 update versioning information stored in the EC
Add build information (date/time/builder) which can be displayed at the
EC console.

Generate a version from the board name and the branch tag.

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

BUG=chromium-os:27013
TEST=on BDS, run version command on the console.
inspect the built binary.

Change-Id: Idb1f68898ba6b811d02919f17ab4536ed9f8934a
2012-03-02 16:46:26 +00:00
Randall Spangler
4c89ccd89e Register host commands the same clever way we do console commands
BUG=none
TEST=run assorted ectool commands

Change-Id: I830d3cbf2d1557b3ab455ec8736d3de5e5d3e697
2012-02-28 13:58:34 -08:00
Vic Yang
0fefd25c0c Temperature polling and temporal correction
A temperature polling task is added to achieve temporal correction and
also reduce the latency of reading temperature.

Factor out sensor specific part to keep code clean.

Signed-off-by: Vic Yang <victoryang@chromium.org>

BUG=chrome-os-partner:7801
TEST=On link, 'temps' shows all temperature readings.
Cover each sensor with hand and see object temperature rise.
Compilation succeeded on bds/adv/daisy/discovery.

Change-Id: I3c44c8b2e3ab2aa9ce640d3fc25e7fba56534b86
2012-02-18 13:37:53 +08:00
Bill Richardson
737fbbd032 Delay enabling UART1 until after LPC bus is enabled.
BUG=none
TEST=manual

Try it on a bds with no LPC bus. It gets a BusFault without this patch.

Change-Id: If3f38df5f7bebaf4c7045a9f48fbe3ac66e8bdbf
2012-02-17 15:55:32 -08:00
Randall Spangler
805c89652f Check for recovery key sequence at init
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7451
TEST=hold down no keys; KB init state should be blank
hold down reload (F3); KB init should indicate recovery key pressed
hold down F3 + ESC; same
hold down F3 + F2 + ESC; KB init should NOT indicate recovery key pressed

Change-Id: I0fbf15407b20669396f667e6499ee5a9d545a4d5
2012-02-14 10:51:24 -08:00
Randall Spangler
6063ad473c Add PECI module and CPU temperature monitoring
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7493
TEST='powerbtn' to boot main processor, then 'temps' and 'pecitemp'

Change-Id: Id57526ebb37c8aecb05ecebccc2824f462b9de1a
2012-02-10 14:09:42 -08:00
David Hendricks
53c1c20fb8 Additional compilation fix-ups for non-LM4 targets
- Add #ifdef CONFIG_TEMP_SENSOR before #include'ing temp_sensor.h
  which actually requires temp_sensor_id to be defined.
  Revert the forward declare used earlier since it is not the
  correct solution in this case.
- Add #ifdef CONFIG_CHARGER before calling charger_init()

Signed-off-by: David Hendricks <dhendrix@chromium.org>

BUG=None
TEST=compiled on both BDS and Discovery

Change-Id: I60b7e4ba91eb958b3ad724cc9ffa9a12fe9c3a71
2012-02-06 15:40:23 -08:00
Vic Yang
000a6d5742 Refactor temperature sensor code and add support of Link I2C temp sensor.
Refactor board/chip-specific code into corresponding directories.
Add support of the four I2C temp sensor in Link.
Use table lookup to handle different types of temperature sensors.

BUG=chrome-os-partner:7527
TEST=Correctly read EC internal temperature on bds.
Compile for link succeeded.

Change-Id: I694cfa54e1545798d877fafdf18c5585ab5f03e2
2012-02-04 14:37:04 +08:00
Vincent Palatin
1f00fc154a Make more features optional
Preparatory work to introduce a second SoC : 2nd series 3/4

Some modules won't be used on other designs, make them optional.

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

BUG=None
TEST=run the EC firmware on BDS and check that the commands from the
optional features are still available and working.

Change-Id: I979864ed94dc4da90c1010bd2e4589d84bc2d046
2012-01-26 01:55:37 +00:00
Vincent Palatin
1008124533 Remove useless header includes
Preparatory work to introduce a second SoC : 2nd series 2/4

Avoid introducing platform specific dependencies in common files where
they are not necessary.

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

BUG=None
TEST=build for BDS and Link

Change-Id: If2ccd022e4956425222b55a5a48ca7522857e7f0
2012-01-26 01:32:30 +00:00
Vincent Palatin
d356dea61e Add modularity to the build
You can now enable/disable tasks more easily.
To conditionally compile a C file depending on the task FOO activation,
just write something like that in the build.mk file :
common-$(CONFIG_TASK_FOO)+=foo_source.o

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

BUG=None
TEST=make all BOARD=link && make qemu-tests

Change-Id: I760fb248e1599d13190ccd937a68ef47da17b510
2012-01-24 23:17:07 +00:00
Vincent Palatin
c21f07e58e register console commands at compile-time
Instead of using a runtime callback to register the console commands,
put them in a special linker section. So we can do a macro to "register"
them during the build.

It saves 684 bytes and a few microseconds at startup.

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

BUG=None
TEST=run a few commands from the BDS command line.

Change-Id: Id33ea210b9035bf76ed720373c74c5dd24ccd1b1
2012-01-24 00:50:08 +00:00
Randall Spangler
cdc3fbf2cf Calibrate internal oscillator using hibernate clock
This works around a chip errata where the internal oscillator on early
EC parts (as used on proto0) is untrimmed.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7693
TEST=if it runs, it works

Change-Id: Ie82a524543f4cf25efd0de7998dbdae103bd126b
2012-01-23 14:58:56 -08:00
Vic Yang
af8026cdf9 USB Charging control
Implement TPS2543 USB charging control.
It contains routine for setting each USB port as dedicated charging port
or standard downstream port. To allow us controlling the current
distributed to each port, we can select whether to allow 500mA or 1500mA
for each port.

BUG=chrome-os-partner:7476
TEST=Added USB port definition for BDS and tested GPIO output voltage
level is correct for all modes.

Change-Id: I19bc4b30d333aa802f868ebfc3a398b30e99ba0f
2012-01-19 10:54:37 +08:00
Randall Spangler
70a9928add Configure all GPIOs
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7528
TEST=none

Change-Id: I0a9be4c689fb72507edcf202073b23c58902d7de
2012-01-12 15:54:35 -08:00
Randall Spangler
c9352ce6ca Add constants for all GPIOs.
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7528
TEST=none

Change-Id: I3b77cbbb7f0cc12a4daae7ababd603b5d7af32d1
2012-01-11 16:30:56 -08:00
Randall Spangler
1f2f8627c3 Add JTAG module
This just ensures the JTAG pins are reset to JTAG function on warm reboot.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7448
TEST=none

Change-Id: I0cccdbe7a68c228db7f354898ed30598e9fabff0
2012-01-11 11:37:55 -08:00
Randall Spangler
39f86d2fad Split power button code into its own file
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7499
TEST=press and release power button; should see debug messages

Change-Id: I8909ae4643afc98753edb690771618ad43135e3e
2012-01-10 14:14:59 -08:00
Randall Spangler
55ffdb465b Clean up labels and TODOs
Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=none

Change-Id: I8d6e99b3e2b60d32ea3719468590b055e692a67e
2012-01-10 10:31:56 -08:00
Vic Yang
e98b6befca Add EC host command to control fan speed.
Add LPC host command to get and set fan speed.

BUG=chrome-os-partner:7313
TEST=Connect a fan and manually test fan actual speed matches target
speed.

Change-Id: I4b6a711a1b8cca0dbd1c1936fe4f0f15240d3453
2011-12-27 10:14:29 +08:00
Randall Spangler
bdf7da5b08 Initial sources import 1/3
source files mainly done by Randall.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

Change-Id: Iaff83a842b17f3350fb6f2a3f1597ad4c29bd12a
2011-12-07 19:10:02 +00:00