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diff --git a/meta-arm/meta-arm-bsp/documentation/juno.md b/meta-arm/meta-arm-bsp/documentation/juno.md new file mode 100644 index 0000000000..69e56bc22b --- /dev/null +++ b/meta-arm/meta-arm-bsp/documentation/juno.md @@ -0,0 +1,75 @@ +# Juno Development Platform Support in meta-arm-bsp + +## Howto Build and Run + +### Configuration: +In the local.conf file, MACHINE should be set as follow: +MACHINE ?= "juno" + +Juno is using a USB hard drive for root filesystem by default. The distribution +used must have ```usbhost``` and ```usbgadget``` in DISTRO_FEATURES (this is +the case in poky distribution). + +### Build: +```bash$ bitbake core-image-minimal``` + +### Update Juno SD card: + +The SD card content is generated during the build here: +tmp/deploy/images/juno/firmware-image-juno.tar.gz + +Its content must be written on the Juno firmware SD card. +To do this: +- insert the sdcard of the Juno in an SD card reader and mount it: +```bash$ sudo mount /dev/sdx1 /mnt``` +(replace sdx by the device of the SD card) + +- erase its content and put the new one: +```bash$ sudo rm -rf /mnt/*``` +```bash$ sudo tar --no-same-owner -xzf tmp/deploy/images/juno/firmware-image-juno.tar.gz -C /mnt/``` +```bash$ sudo umount /mnt``` + +- reinsert the SD card in the Juno board + +### Create an USB hard drive: + +Linux root file system should be stored on the second partition of an USB +drive that must be plugged on the Juno Platform. + +This partition should be initialized with the content of the filesystem +generated by yocto that you can find here: +tmp/deploy/images/juno/core-image-minimal-juno.tar.bz2 + +To do this +- Format a USB disk, create two primary partitions (ext4). +- mount the secondary partition +- untar tmp/deploy/images/juno/core-image-minimal-juno.tar.bz2 on to the + secondary partition. + +### Run: +You must insert the SD card and the USB drive and power-on the Juno board. +The console should be available on the second serial line: +screen -L /dev/tty.usbserial 115200 + +On the first boot the images will be flashed which can take some time. + +## Devices supported in the kernel +- serial +- usb +- network +- watchdog +- rtc +- mmc + +### Untested: +- i2c +- dma +- pci +- sata +- sound + +## Devices not supported or not functional +- framebuffer: not functional + The HDMI is not properly detected. +- GPU (no user land libraries). + The mali-midgard-kernel can be used to have a kernel driver |