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Describe InstallingDebianOn/CompuLab/PC-Utilite/buster here.

PC Utilite Pro support in Debian buster

This manual explains how to upgrade U-boot and install Debian buster to Utilite Pro device. This page exists to collate information about the status of support in Debian for the PC Utilite by CompuLab. Shell environment to use # for root shell, and $ for user shell.

Download armhf ISO image

You can download armhf ISO image from Debian cdimage depository. The file to download tested in this installation was debian-10.3.0-armhf-netinst.iso.

Starting

Install required Debian packages.

# apt install -y build-essential gcc-arm-linux-gnueabihf bison flex bc git
$ git clone https://gitlab.denx.de/u-boot/u-boot.git
$ cd u-boot
$ git checkout v2020.01
$ export ARCH=arm
$ export CROSS_COMPILE=arm-linux-gnueabihf-
$ make cm_fx6_defconfig
$ make
$ tools/mkimage -n spl/u-boot-spl.cfgout -T imximage -e 0x908000 -d spl/u-boot-spl.bin spl.img
# dd if=/dev/zero of=cm-fx6-firmware bs=64K count=1
# dd if=spl.img of=cm-fx6-firmware bs=1K seek=1 conv=notrunc
# dd if=u-boot.img of=cm-fx6-firmware bs=1K seek=64 conv=notrunc

U-boot Debian netboot commands

Here we select netboot initrd image to be booted. Plug in the ethernet cable into one of the Utilite ethernet's ports.

# load mmc 2:1 0x12000000 install.ahf/vmlinuz
# load mmc 2:1 0x13000000 install.ahf/netboot/initrd.gz
# load mmc 2:1 0x18000000 install.ahf/device-tree/imx6q-utilite-pro.dtb
# setenv bootargs console=ttymxc3,115200 ${video}
# bootz 0x12000000 0x13000000:0x164707d 0x18000000

Final SSD drive boot

# sata init
# load sata 0:1 0x12000000 vmlinuz
# load sata 0:1 0x13000000 initrd.img
# load sata 0:2 0x18000000 usr/lib/linux-image-4.19.0-8-armmp/imx6q-utilite-pro.dtb
# setenv bootargs console=ttymxc3,115200 root=/dev/sda2 ro rootwait ${video}
# bootz 0x12000000 0x13000000:0x139535e 0x18000000

Writing new U-boot onto internal SPI EEPROM

Be carefull here, this can result into a bricked SPI EEPROM (bricked Utilite) !!!

# load mmc 2:1 0x12000000 cm-fx6-firmware

613110 bytes read in 67 ms (8.7 MiB/s)

# sf probe 0

SF: Detected sst25vf016b with page size 256 Bytes, erase size 4 KiB, total 2 MiB

# sf erase 0x0 0xc0000

SF: 786432 bytes @ 0x0 Erased: OK

# sf write 0x12000000 0x0 0x95af6

evice 0 offset 0x0, size 0x95af6 SF: 613110 bytes @ 0x0 Written: OK