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board: add support for RIoTboard

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This is a small development board, based on Freescale IMX6 Solo SoC
(single core ARM Cortex-A9). The board has excellent support in mainline
U-Boot and Linux.

Signed-off-by: Nikolay Dimitrov <picmaster@mail.bg>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Nikolay Dimitrov 2015-03-06 06:11:25 +02:00 committed by Thomas Petazzoni
parent 591cb698d7
commit 3c9aa32183
3 changed files with 86 additions and 0 deletions
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46
board/embest/riotboard/readme.txt Normal file
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Buildroot for Embest RIoTboard
==============================
1. Compiling buildroot
----------------------
make riotboard_defconfig
make
2. Installing buildroot
-----------------------
Prepare an SD-card and plug it into your card reader. Write the bootloader to
your SD-card:
sudo dd if=output/images/u-boot.imx of=/dev/sdX bs=1k seek=1
Create 1 partition on the SD-card using your favourite tool. The partition
should be big enough to hold your rootfs, for example 128MiB. Here's how an
example of such partition layout:
Device Boot Start End Blocks Id System
/dev/sdX1 2048 264191 131072 83 Linux
Format the SD-card partition with your favourite filesystem:
sudo mkfs.ext2 /dev/sdX1
Deploy your rootfs to the SD-card:
sudo mkdir /mnt/sdcard/
sudo mount /dev/sdX1 /mnt/sdcard/
sudo tar xf rootfs.tar -C /mnt/sdcard/
sudo umount /dev/sdX1
3. Running buildroot
--------------------
Position the board so you can read the label "RIoTboard" on the right side of
SW1 DIP switches. Configure the SW1 swiches like this:
10100101 (1 means ON position, 0 means OFF position)
Now plug your prepared SD-card in slot J6. Connect a serial console (115200, 8,
N, 1) to header J18. Connect a 5V/1A power supply to the board and enjoy your
new toy.

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board/embest/riotboard/rootfs_overlay/boot/extlinux/extlinux.conf Normal file
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default buildroot
label buildroot
kernel /boot/uImage
devicetree /boot/imx6dl-riotboard.dtb
append console=ttymxc1,115200 root=/dev/mmcblk0p1 rw

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configs/riotboard_defconfig Normal file
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# architecture
BR2_arm=y
BR2_cortex_a9=y
BR2_ARM_EABIHF=y
# system
BR2_TARGET_GENERIC_GETTY=y
BR2_TARGET_GENERIC_GETTY_PORT="ttymxc1"
# rootfs
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_2r1=y
BR2_ROOTFS_OVERLAY="board/embest/riotboard/rootfs_overlay"
# bootloader
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_VERSION="2015.01"
BR2_TARGET_UBOOT_BOARDNAME="riotboard"
BR2_TARGET_UBOOT_FORMAT_IMX=y
# kernel headers
BR2_KERNEL_HEADERS_VERSION=y
BR2_DEFAULT_KERNEL_VERSION="3.18"
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_18=y
# kernel
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.18"
BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000"
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6dl-riotboard"
BR2_LINUX_KERNEL_INSTALL_TARGET=y