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* Enable PD communication in RO for external displayDaisuke Nojiri2018-02-031-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | This patch makes EC enable PD communication if it's running in manual recovery mode. This is required to show recovery screen on a type-c monitor. This patch also makes EC-EFS ignore power availability. It will make EC verify & jump to RW even if power is sourced by a barrel jack adapter. This should allow depthcharge to show screens (e.g. broken, warning) on a type-c monitor. BUG=b:72387533 BRANCH=none TEST=On Fizz with type-c monitor, verify - Recovery screen is displayed in manual recovery mode. - Critical update screen is displayed in normal mode. - Warning screen is displayed in developer mode. Monitors tested: Dingdong, Dell S2718D Change-Id: Ib53e02d1e5c0f5b2d96d9a02fd33022f92e52b04 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/898346 Reviewed-by: Randall Spangler <rspangler@chromium.org>
* vboot: Jump to RW earlyDaisuke Nojiri2017-07-141-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change makes EC run vboot in the HOOK task. The vboot routine requires battery and charger info. It waits in a deferred call loop until the charge manager is initialized. BUG=b:63586051 BRANCH=none TEST=Verify the following cases: A. Hardware reboot (type-c/BJ) 1. Unplug AC in S0 then plug in AC: BOOT/BOOT 2. Unplug AC in S5 then plug in AC: S5/S5 3. Unplug AC after A.2 then plug in AC: S5/S5 4. Press PB in S5: BOOT/BOOT B. Software reboot (type-c/BJ) 1. Run EC reboot command in S0: BOOT/BOOT 2. Run EC reboot command in S5: BOOT/BOOT 3. Run EC reboot ap-off command in S0: S5/S5 4. Run EC reboot ap-off command in S5: S5/S5 5. Run host reboot command: BOOT/BOOT 6. Run host shutdown command: S5/S5 C. Recovery tests 1. Press RB and PB in S0: FAIL(*1)/PASS 2. Press RB and PB in S5: FAIL(*1)/PASS(*2) 3. Unplug AC in S0 then press RB and plug in AC: PASS/PASS 4. Unplug AC in S5 then press RB and plug in AC: PASS(*2)/PASS(*2) *1: b:63668669 *2: b:63669512. Requires one more PB press. Change-Id: I28f37fdad7f83d0d44570b9003e8c6a4b83b832f Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/568699 Reviewed-by: Randall Spangler <rspangler@chromium.org>
* vboot: Move common code under common/vbootDaisuke Nojiri2017-07-131-1/+45
| | | | | | | | | | | | | | | This patch moves the code which can be shared with other data verification schemes (e.g. RWSIG) under common/vboot. It also adds unit tests for it. BUG=b:38462249 BRANCH=none TEST=make run-vboot. Verify verification succeeds on Fizz. Change-Id: Icab4d96dd2c154a12b01c41ebe9b46286b4b590e Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/563463 Reviewed-by: Randall Spangler <rspangler@chromium.org>
* vboot: Add vboot for EC by ECDaisuke Nojiri2017-06-281-0/+15
| | | | | | | | | | | | | | | | | This patch adds vboot for EC by EC (vboot EC) for x86 systems. When ec is transitioning s5->s3, it checks the power supply is enough to boot AP or not. If not, it runs other checks and may finally validate and jump to a RW image. BUG=b:38462249 BRANCH=none TEST=Boot Fizz on barrel jack and type-c charger. Change-Id: I5988b0595976370c5303c45541702ae89d86fc97 Reviewed-on: https://chromium-review.googlesource.com/518254 Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org> Tested-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
* Remove signature-based vboot supportRandall Spangler2012-08-071-37/+0
| | | | | | | | | | | | | | | | | | | | Superseded by EC software sync (hash-based). Sig-based vboot was correctly implemented, but ended up being too slow to be useful given the limited processing power of the EC chips, and we also couldn't come up with a manageable way to handle A/B autoupdate of signed EC firmware. This change and an associated vboot_reference change shrinks the EC binary by ~2KB. BUG=chrome-os-partner:11232 TEST=build link,snow; boot link and check that 'hash' command still works. Change-Id: I3f03ae2d0a4030977826980d6ec5613181e154c2 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/29496 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
* Flash pre-init reboots if it needs to clear protection registersRandall Spangler2012-07-161-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BUG=chrome-os-partner:11171 TEST=manual 1. Clear some of the writable-bits in the flash registers > ww 0x400fe40c 0xffff1234 write 0x400fe40c = 0xffff1234 > rw 0x400fe40c read 0x400fe40c = 0xffff1234 2. Reset using power+refresh 3. Register should be clear again > rw 0x400fe40c read 0x400fe40c = 0xffffffff 4. Sysinfo should indicate reset-pin reason AND hard-reset reason > sysinfo Reset flags: 0x0000000a (reset-pin power-on) 5. Reset using power+refresh 6. Sysinfo should indicate reset-pin reason only > sysinfo Reset flags: 0x00000002 (reset-pin) 7. Clear writable-bits again > ww 0x400fe40c 0xffff1234 write 0x400fe40c = 0xffff1234 8. Jump to another image. This should NOT trigger a hard reset. > sysjump A > sysinfo Reset flags: 0x00000402 (reset-pin sysjump) Change-Id: Ie1d6af2acc68217bb82faae464798ee85d63d1ea Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/27540 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
* Remove fake dev switchRandall Spangler2012-07-101-1/+1
| | | | | | | | | | | | | | BUG=chrome-os-partner:9922 TEST=manual Press power+refresh+d. From ec console, 'optget'. No reference to fake dev switch From host, 'ectool vboot'. Should see either 'fake_dev=0' or no mention of fake dev switch at all. Change-Id: I66bc5e926d6e639b206563e764bcc730cce9227c Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/27061 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
* Strip out vboot signature code and stay in RO for linkRandall Spangler2012-06-261-7/+14
| | | | | | | | | | | | | | 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>
* Add LPC command to handle vboot stuff.Bill Richardson2012-05-221-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds "ectool vboot", which works like so: # ./ectool vboot 0x06 image=A fake_dev=1 # ./ectool vboot 0 # ./ectool vboot 0x02 image=A fake_dev=0 # ./ectool vboot ff # ./ectool vboot 0x06 image=A fake_dev=1 You can set or unset the fake dev-switch, and see which firmware image the EC is running from. BUG=chrome-os-partner:8313 TEST=manual Boot the host, use crossystem to see the devsw_boot state. Change it with the ectool command, reboot, see that it's changed. Change-Id: Iaac40267338c6a07bc47b80e925e829bf1e1ae0c Signed-off-by: Bill Richardson <wfrichar@chromium.org>
* Initial sources import 1/3Randall Spangler2011-12-071-0/+20
source files mainly done by Randall. Signed-off-by: Randall Spangler <rspangler@chromium.org> Change-Id: Iaff83a842b17f3350fb6f2a3f1597ad4c29bd12a
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