Poin2 Chromebook 11 (google-veyron-jerry)

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Note This device page also represents next devices: CTL Chromebook J2 / J4, CDI eduGear Chromebook K, Epik Chromebook ELB1101, HiSense Chromebook 11, Mecer Xpression V2, NComputing Chromebook CX100 / CX110, Positivo Chromebook CH1190, VideoNet Chromebook BL10. Some of them are not tested. If you cannot get something from this list to work, open an issue in https://gitlab.com/postmarketOS/pmaports.
Poin2 Chromebook 11
Veyron Jerry Chromebook
Veyron Jerry Chromebook
Manufacturer Poin2
Name Chromebook 11
Codename google-veyron-jerry
Released 2015
Category testing
Original software ChromeOS
Hardware
Chipset Rockchip RK3288
CPU 4x 1.8 GHz Cortex-A17
GPU Mali-T760 MP4
Display 1366x768
Storage 16 GB eMMC
Memory 2 GB
Architecture armv7
Non-Android based device
Unixbench Whet/Dhry score 1921.2
Features
USB Networking
Unavailable
Flashing
Unavailable
Touchscreen
Unavailable
Display
Works
WiFi
Works
FDE
Works
Mainline
Works
Battery
Works
3D Acceleration
Works
Audio
Works
Bluetooth
Works
Camera
Broken
GPS
Unavailable
Mobile data
Unavailable
SMS
Unavailable
Calls
Unavailable
USB OTG
Unavailable
NFC
Unavailable
Sensors
Accelerometer
Unavailable
Magnetometer
Unavailable
Ambient Light
Unavailable
Proximity
Unavailable
Hall Effect
Works
Barometer
Unavailable
Power Sensor
Unavailable
Misc
Keyboard
Works
Touchpad
Works
USB-A
Works
HDMI/DP
Works
Ir TX
Unavailable
TrustZone
Unavailable
FOSS bootloader
Partial
U-Boot
Primary Bootloader
Secondary Bootloader
Works
Mainline
Broken
Internal Storage
SD card
Works
USB Host
USB Peripheral
Unavailable
Display
Works
Keyboard
Works
Buttons
Unavailable



Contributors

Users owning this device

Installation

Device comes stock with coreboot and depthcharge. depthcharge is annoying to work with in my opinion, and the version included on this device does not support loading an initramfs. so the first step is to get a bootloader that works properly and ideally doesnt get in out way loading for us. it should be possible to build a new version of coreboot+depthcharge, but there is not much documentation and what is there is old and broken. U-Boot should be able to replace coreboot and depthcharge, but i havent had luck getting it to work properly standalone, so our best option is chainloading an older version from depthcharge.

U-Boot

The latest known-to-work version is 2017.07.

chainloading

Chainloading is safest with no chance of bricks, if something goes wrong you can just restore using the chromeos recovery image. will write instructions later

info on chainloading u-boot https://github.com/hexdump0815/u-boot-chainloading-for-arm-chromebooks/blob/master/readme.cbr

the goal is to write uboot.kpart.cbr-jerry to one of the kern partitions and set it bootable.

If you are stating from a fresh ChromeOS install:

1. enable developer mode (hold esc+refresh then hit power. hit ctrl+d at recovery screen)

2. connect to wifi.

3. Ctrl+alt+F2 (right arrow)

4. login, username should be chronos

5. curl -LO https://github.com/hexdump0815/imagebuilder/releases/download/210613-03/uboot.kpart.cbr-jerry

6. sudo dd if=uboot.kpart.cbr-jerry of=/dev/mmcblk0p4

7. sudo cgpt add -i 4 -S 1 -T 15 -P 15 /dev/mmcblk0

8. reboot. you should now boot to u-boot after the dev-mode warning screen and can boot postmarketos from sd.

U-Boot on SPI

preferred method, but with some chance of brick. can't seem to get kernel to boot properly, ignore this for now.

$ git clone https://github.com/u-boot/u-boot

$ make -j8 O=b/chromebook_jerry CROSS_COMPILE=arm-none-eabi-    chromebook_jerry_defconfig all

$ ./b/chromebook_jerry/tools/mkimage -n rk3288 -T rkspi  -d b/chromebook_jerry/spl/u-boot-spl.bin spl.bin &&    dd if=spl.bin of=spl-out.bin bs=128K conv=sync &&    cat spl-out.bin b/chromebook_jerry/u-boot-dtb.img >out.bin &&    dd if=out.bin of=out.bin.pad bs=4M conv=sync

// copy out.bin.pad to chromebook
$ sudo flashrom -p linux_mtd -w out.bin.pad

Audio

See ASUS_Chromebook_C201_(google-veyron-speedy)#Audio.

See also