+++ /dev/null
-VIA VAB-820/AMOS-820
-====================
-
-This file documents the Buildroot support for the VIA VAB-820 board and
-VIA AMOS-820 system, which are built around a Freescale i.MX6 Quad/Dual SoC.
-The kernel and u-boot is based on the official VIA BSP, which is in turn
-based on the Freescale Linux 3.10.17_1.0.0_ga BSP.
-
-
-Configuring and building Buildroot
-----------------------------------
-
-Start from the defconfig:
-
- $ make via_imx6_vab820_defconfig
-
-You can edit build options the usual way:
-
- $ make menuconfig
-
-When you are happy with the setup, run:
-
- $ make
-
-The result of the build with the default settings should be these files:
-
- output/images
- ├── boot.vfat
- ├── imx6q-vab820.dtb
- ├── rootfs.ext2
- ├── rootfs.ext4 -> rootfs.ext2
- ├── rootfs.tar
- ├── sdcard.img
- ├── u-boot.imx
- └── uImage
-
-Copy the bootable `sdcard.img` onto an SD card with "dd":
-
- $ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M conv=fsync
-
-where "sdX" is the appropriate partition of your card.
-
-For details about the medium image layout, see the definition in
-`board/via/imx6_vab820/genimage.cfg`.
-
-
-Setting up your SD card manually
---------------------------------
-
-*Important*: pay attention which partition you are modifying so you don't
-accidentally erase the wrong file system, e.g your host computer or your
-external storage!
-
-In the default setup you need to create 2 partitions on your SD card:
-a boot partition and a root partition. In this guide and in the default u-boot
-settings the boot partition is vfat, while the root partition is ext4.
-
-You also need to leave space for u-boot at the beginning of the card, before
-all the partitions.
-
-For example, if your SD card is at /dev/sdX, using fdisk, and starting from
-an empty card, the steps are along these lines:
-
- # fdisk /dev/sdX
- n (new partition)
- p (primary partition)
- 1 (first partition)
- <return> (default first sector, should be at least 1MB from the beginning
- which is 2048 sectors if the sector size is 512KB)
- +50M (50MB size, as an example)
- t (switch partition type)
- b (select "W95 FAT32" type)
- n (the second partition)
- p (primary partition)
- 2 (second partition)
- <return> (default first sector)
- <return> (use all remaining space)
- p (print so the partition looks something like this below)
- Device Boot Start End Sectors Size Id Type
- /dev/sdX1 2048 104447 102400 50M b W95 FAT32
- /dev/sdX2 104448 15564799 15460352 7.4G 83 Linux
- w (save changes)
-
-After this you need to format the newly created file system:
-
- # mkfs.vfat -L boot /dev/sdX1
- # mkfs.ext4 -L rootfs /dev/sdX2
-
-Now the system can be copied onto the card. First copy the u-boot onto
-the region of the card before the first partition (starting from the
-root directory of buildroot):
-
- # dd if=output/images/u-boot.imx of=/dev/sdX bs=512 seek=2
-
-Mount the first partition /dev/sdX1, and copy the kernel and the
-compiled device tree:
-
- # cp output/images/uImage /mnt/<BOOT-PARTITION>
- # cp output/images/imx6q-vab820.dtb /mnt/<BOOT-PARTITION>
-
-Finally, copy the root file system onto the mounted (empty) /dev/sdX2
-rootfs partition:
-
- # tar xf output/images/rootfs.tar -C /mnt/<ROOTFS-PARTITION>
-
-
-Booting
--------
-
-To use the on-card u-boot, you need adjust jumper J11 located just next to
-the SD card slot on the VAB-820 board. The correct position for SD card
-boot is jumping the two pins towards the inside of the board.
-
-To modify the default boot parameters compiled into u-boot, you can create
-a boot script with the file name `boot.scr` and place it onto the boot
-partition (same directory as `uImage`).
-
-If you want to have the login prompt on the serial debug line instead of
-the console, adjust the buildroot settings as:
-"System Configuration > getty options > TTY port > ttymxc1"
+++ /dev/null
-# Architecture
-BR2_arm=y
-BR2_cortex_a9=y
-BR2_ARM_ENABLE_VFP=y
-
-# Linux headers same as kernel, a 3.10 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_10=y
-
-# Kernel
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_GIT=y
-BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/viaembedded/vab820-kernel-bsp.git"
-BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="via_3.10.17_2.0.6"
-BR2_LINUX_KERNEL_DEFCONFIG="via_vab820"
-BR2_LINUX_KERNEL_UIMAGE=y
-BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000"
-BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6q-vab820"
-
-# Bootloader
-BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BOARDNAME="mx6qvab820"
-BR2_TARGET_UBOOT_CUSTOM_GIT=y
-BR2_TARGET_UBOOT_CUSTOM_REPO_URL="https://github.com/viaembedded/vab820-uboot-bsp.git"
-BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="via_3.10.17_2.0.6"
-BR2_TARGET_UBOOT_FORMAT_IMX=y
-
-# Filesystem
-BR2_TARGET_ROOTFS_EXT2=y
-BR2_TARGET_ROOTFS_EXT2_4=y
-BR2_PACKAGE_HOST_DOSFSTOOLS=y
-BR2_PACKAGE_HOST_GENIMAGE=y
-BR2_PACKAGE_HOST_MTOOLS=y
-BR2_ROOTFS_POST_IMAGE_SCRIPT="board/via/imx6_vab820/post-image.sh"