diff options
author | Vincent Stehlé <vincent.stehle@freescale.com> | 2015-03-22 14:25:15 +0100 |
---|---|---|
committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2015-04-03 17:26:00 +0200 |
commit | 0eb659d04e7854a25be09c5358212a7bfcc39b2b (patch) | |
tree | 9df0306e8e0c6acca93c42ad12c0b2b1be4b19ec /board | |
parent | 1536362eff8f5d5a20e2f6d486fa5027cf63fdec (diff) | |
download | buildroot-0eb659d04e7854a25be09c5358212a7bfcc39b2b.tar.gz buildroot-0eb659d04e7854a25be09c5358212a7bfcc39b2b.zip |
config: Add defconfig for Freescale i.MX28 EVK
The i.MX28 Evaluation Kit (or EVK) is Freescale's evaluation board based on the
i.MX287 Applications Processor.
This defconfig is based on mainline u-boot and Linux kernel.
Also, we add an SD card creation script and documentation, shamelessly based on
the ones for i.MX5/6 by Luca Ceresoli.
[Arnout: fixate U-Boot and kernel (headers) versions]
Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'board')
-rwxr-xr-x | board/freescale/imx28evk/create-boot-sd.sh | 97 | ||||
-rw-r--r-- | board/freescale/imx28evk/readme.txt | 58 |
2 files changed, 155 insertions, 0 deletions
diff --git a/board/freescale/imx28evk/create-boot-sd.sh b/board/freescale/imx28evk/create-boot-sd.sh new file mode 100755 index 0000000000..5e050cbada --- /dev/null +++ b/board/freescale/imx28evk/create-boot-sd.sh @@ -0,0 +1,97 @@ +#!/bin/sh + +set -u +set -e + +PROGNAME=$(basename $0) + +usage() +{ + echo "Create an SD card that boots on an i.MX28 EVK board." + echo + echo "Note: all data on the the card will be completely deleted!" + echo "Use with care!" + echo "Superuser permissions may be required to write to the device." + echo + echo "Usage: ${PROGNAME} <sd_block_device>" + echo "Arguments:" + echo " <sd_block_device> The device to be written to" + echo + echo "Example: ${PROGNAME} /dev/mmcblk0" + echo +} + +if [ $# -ne 1 ]; then + usage + exit 1 +fi + +if [ $(id -u) -ne 0 ]; then + echo "${PROGNAME} must be run as root" + exit 1 +fi + +DEV=${1} + +# The partition name prefix depends on the device name: +# - /dev/sde -> /dev/sde1 +# - /dev/mmcblk0 -> /dev/mmcblk0p1 +if echo ${DEV}|grep -q mmcblk ; then + PART="p" +else + PART="" +fi + +PART1=${DEV}${PART}1 +PART2=${DEV}${PART}2 +PART3=${DEV}${PART}3 + +# Unmount the partitions if mounted +umount ${PART1} || true +umount ${PART2} || true +umount ${PART3} || true + +# First, clear the card +dd if=/dev/zero of=${DEV} bs=1M count=20 + +sync + +# Partition the card. +# SD layout for i.MX28 boot: +# - Special partition type 53 at sector 2048, containing an SD-SB-encapsulated u-boot +# - FAT partition containing zImage +# - ext2/3 partition formatted as ext2 or ext3, containing the root filesystem. +sfdisk --force -u S ${DEV} <<EOF +2048,2000,53 +4048,16000,b +20048,,L +EOF + +sync + +# Copy the bootloader at offset 2048 +# (We need to skip the partition table in the .sd, too.) +dd if=output/images/u-boot.sd of=${DEV}1 bs=1M + +# Prepare a temp dir for mounting partitions +TMPDIR=$(mktemp -d) + +# FAT partition: kernel +mkfs.vfat ${PART2} +mount ${PART2} ${TMPDIR} +cp output/images/*Image ${TMPDIR}/ +cp output/images/*.dtb ${TMPDIR}/ || true +sync +umount ${TMPDIR} + +# ext2 partition: root filesystem +mkfs.ext2 ${PART3} +mount ${PART3} ${TMPDIR} +tar -C ${TMPDIR}/ -xf output/images/rootfs.tar +sync +umount ${TMPDIR} + +# Cleanup +rmdir ${TMPDIR} +sync +echo Done diff --git a/board/freescale/imx28evk/readme.txt b/board/freescale/imx28evk/readme.txt new file mode 100644 index 0000000000..cbf6aae883 --- /dev/null +++ b/board/freescale/imx28evk/readme.txt @@ -0,0 +1,58 @@ +************************** +Freescale i.MX28 EVK board +************************** + +This file documents the Buildroot support for the Freescale i.MX28 EVK board. + +Read the i.MX28 Evaluation Kit Quick Start Guide [1] for an introduction to the +board. + +Build +===== + +First, configure Buildroot for your i.MX28 EVK board: + + make freescale_imx28evk_defconfig + +Build all components: + + make + +You will find in ./output/images/ the following files: + - imx28-evk.dtb + - rootfs.tar + - u-boot.sd + - zImage + +Create a bootable SD card +========================= + +To determine the device associated to the SD card have a look in the +/proc/partitions file: + + cat /proc/partitions + +Run the following script as root on your SD card. This will partition the card +and copy the bootloader, kernel and root filesystem as needed. + +*** WARNING! The script will destroy all the card content. Use with care! *** + + ./board/freescale/imx28evk/create-boot-sd.sh <your-sd-device> + +Boot the i.MX28 EVK board +========================= + +To boot your newly created system (refer to the i.MX28 EVK Quick Start Guide +[1] for guidance): +- insert the SD card in the SD Card Socket 0 of the board; +- verify that your i.MX28 EVK board jumpers and switches are set as mentioned + in the i.MX28 EVK Quick Start Guide [1]; +- connect an RS232 UART cable to the Debug UART Port and connect using a + terminal emulator at 115200 bps, 8n1; +- power on the board. + +Enjoy! + +References +========== +[1] http://cache.freescale.com/files/32bit/doc/user_guide/EVK_imx28_QuickStart.pdf |