| # Copyright 2021 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| description "Flash ro of hps before hpsd starts" |
| author "chromium-os-dev@chromium.org" |
| |
| # hpsd will still start if this fails |
| # we could add this to hpsd.conf if needed: |
| # start on stopped hpsd_roflash RESULT=ok |
| start on starting hpsd |
| task |
| |
| # This must not be killed as there is a small chance |
| # it could leave the HPS device bricked. |
| oom score never |
| # Typical vsize for hps-factory is 2756 KiB, allow some headroom |
| limit as 20000000 unlimited |
| |
| # Initialise the HPS before starting hpsd. The hps-factory command will: |
| # 1. Unbind the cros-hps kernel driver, which will power *on* the HPS |
| # peripheral on its way out. |
| # 2. If HPS is in the STM bootloader (I2C address 0x51) because its flash is |
| # blank, write stage0. If HPS is already in stage0 (I2C address 0x30), |
| # check the stage0 version register, and erase and re-write stage0 if the |
| # version is different. |
| # 3. Bind the cros-hps kernel driver. |
| script |
| syslog-cat --identifier="${UPSTART_JOB}" -- \ |
| hps-factory --dev=/dev/i2c-hps-controller \ |
| write-stage0 --check-version --skip-one-time-init |
| end script |
