diff options
| -rw-r--r-- | board/atmel/xplained/readme.txt | 73 | ||||
| -rw-r--r-- | configs/atmel_xplained_defconfig | 28 |
2 files changed, 101 insertions, 0 deletions
diff --git a/board/atmel/xplained/readme.txt b/board/atmel/xplained/readme.txt new file mode 100644 index 0000000000..e29a116883 --- /dev/null +++ b/board/atmel/xplained/readme.txt @@ -0,0 +1,73 @@ +Atmel SAMA5D3 Xplained board +============================ + +This document explains how to set up a basic Buildroot system on the +Atmel SAMA5D3 Xplained board, whose main site is +http://www.atmel.com/tools/ATSAMA5D3-XPLD.aspx. Additional details can +also be found on the http://www.at91.com/linux4sam/bin/view/Linux4SAM/ +web site. + +Note that the default Buildroot configuration is prepared to boot from +an SD card: the first stage bootloader, second stage bootloader, +kernel image and root filesystem are all located on the SD card. Some +adjustements in the bootloader configuration will be needed to boot +from NAND flash. + +Configuring and building Buildroot +---------------------------------- + + make atmel_xplained_defconfig + make + +Preparing the SD card +--------------------- + +The SD card must be partitionned with at least two partitions: one +FAT16 partition for the bootloaders, kernel image and Device Tree +blob, and one ext4 partition for the root filesystem. To partition the +SD card: + +sudo sfdisk -uM /dev/mmcblk0 <<EOF +,64,6 +; +EOF + +This creates a 64 MB partition for the FAT16 filesystem (type 6) and +uses the rest for the ext4 filesystem used for the root filesystem. + +Then, format both partitions: + +sudo mkfs.msdos -n boot /dev/mmcblk0p1 +sudo mkfs.ext4 -L rootfs -O ^huge_file /dev/mmcblk0p2 + + Note: the -O ^huge_file option is needed to avoid enabling the huge + files features of ext4 (to support files larges than 2 TB), which + needs the kernel option CONFIG_LBDAF to be enabled. + +Mount both partitions (if not done automatically by your system): + +sudo mount /dev/mmcblk0p1 /media/boot +sudo mount /dev/mmcblk0p2 /media/rootfs + +Copy the bootloaders, kernel image and Device Tree blob to the first +partition: + +cp output/images/sama5d3_xplained-sdcardboot-uboot-3.6.2.bin /media/boot/boot.bin +cp output/images/u-boot.bin /media/boot/u-boot.bin +cp output/images/zImage /media/boot/zImage +cp output/images/at91-sama5d3_xplained.dtb /media/boot/at91-sama5d3_xplained.dtb + +Extract the root filesystem to the second partition: + +sudo tar -C /media/rootfs -xf output/images/rootfs.tar + +Unmount both partitions: + +sudo umount /media/boot +sudo umount /media/rootfs + +Insert your SD card in your Xplained board, and enjoy. The default +U-Boot environment will properly load the kernel and Device Tree blob +from the first partition of the SD card, so everything works +automatically. + diff --git a/configs/atmel_xplained_defconfig b/configs/atmel_xplained_defconfig new file mode 100644 index 0000000000..8c06489510 --- /dev/null +++ b/configs/atmel_xplained_defconfig @@ -0,0 +1,28 @@ +# Architecture +BR2_arm=y +BR2_cortex_a5=y + +# Toolchain configuration +BR2_ARM_EABIHF=y +BR2_KERNEL_HEADERS_VERSION=y +BR2_DEFAULT_KERNEL_VERSION="3.15" +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_15=y + +# Kernel configuration +BR2_LINUX_KERNEL=y +BR2_LINUX_KERNEL_CUSTOM_VERSION=y +BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.15" +BR2_LINUX_KERNEL_DEFCONFIG="sama5" +BR2_LINUX_KERNEL_ZIMAGE=y +BR2_LINUX_KERNEL_DTS_SUPPORT=y +BR2_LINUX_KERNEL_INTREE_DTS_NAME="at91-sama5d3_xplained" + +# First stage bootloader +BR2_TARGET_AT91BOOTSTRAP3=y +BR2_TARGET_AT91BOOTSTRAP3_DEFCONFIG="sama5d3_xplainedsd_uboot" + +# Second stage bootloader +BR2_TARGET_UBOOT=y +BR2_TARGET_UBOOT_BOARDNAME="sama5d3_xplained_mmc" +BR2_TARGET_UBOOT_CUSTOM_VERSION=y +BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2014.04" |
