board: add support for the i.MX6 Wandboard platform

Minimal board support for the Wandboard

Wandboard's homepage is here: http://www.wandboard.org/

This config is only tested with the dual core wandboard.

Installing:

You need a micro SD card and a slot/adapter for your development machine.

Partition the SD card leaving at least 1 MB in front of the first partition.

Partition layout (example):

Disk /dev/sdi: 3965 MB, 3965190144 bytes

255 heads, 63 sectors/track, 482 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x77b47445

   Device Boot      Start         End      Blocks   Id  System

/dev/sdi1               2         482     3863632+  83  Linux

Copy u-boot and its environment to the SD card:

sudo dd if=output/images/u-boot.imx bs=512 seek=2 of=/dev/sd<x>

sudo dd if=output/images/uboot-env.bin bs=512 seek=768 of=/dev/sd<x>

Copy the root filesystem:

sudo dd if=output/images/rootfs.ext2 of=/dev/sd<x>1

Alternative commands to copy root filesystem:

sudo mkfs.ext4 /dev/sd<x>1

sudo mount /dev/sd<x>1 /mnt

sudo tar xf output/images/rootfs.tar -C /mnt

sudo umount /mnt

baudrate=115200

bootcmd=mmc dev ${mmcdev}; if mmc rescan; then if run loadbootscript; then run bootscript; else if run loaduimage; then run mmcboot; else run netboot; fi; fi; else run netboot; fi

bootdelay=3

bootscript=echo Running bootscript from mmc ...; source

console=ttymxc0

ethact=FEC

ethaddr=00:1f:7b:b2:05:ee

ethprime=FEC

loadaddr=0x12000000

loadbootscript=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};

loaduimage=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}

mmcargs=setenv bootargs console=${console},${baudrate} root=${mmcroot}

mmcboot=echo Booting from mmc ...; run mmcargs;  bootm; 

mmcdev=0

mmcpart=1

mmcroot=/dev/mmcblk0p1 rootwait rw

netargs=setenv bootargs console=${console},${baudrate} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp

netboot=echo Booting from net ...; run netargs; if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; ${get_cmd} ${uimage}; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if ${get_cmd} ${fdt_addr} ${fdt_file}; then bootm ${loadaddr} - ${fdt_addr}; else if test ${boot_fdt} = try; then bootm; else echo WARN: Cannot load the DT; fi; fi; else bootm; fi;

script=boot/boot.scr

uimage=boot/uImage

BR2_arm=y

BR2_cortex_a9=y

BR2_KERNEL_HEADERS_3_0=y

BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"

BR2_TARGET_ROOTFS_EXT2=y

BR2_TARGET_ROOTFS_EXT2_4=y

BR2_TARGET_UBOOT=y

BR2_TARGET_UBOOT_BOARDNAME="wandboard_dl"

BR2_TARGET_UBOOT_CUSTOM_GIT=y

BR2_TARGET_UBOOT_CUSTOM_GIT_REPO_URL="git://git.denx.de/u-boot-imx.git"

BR2_TARGET_UBOOT_CUSTOM_GIT_VERSION="326ea986ac150acdc7656d57fca647db80b50158"

BR2_TARGET_UBOOT_FORMAT_CUSTOM=y

BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot.imx"

BR2_TARGET_UBOOT_ENVIMAGE=y

BR2_TARGET_UBOOT_ENVIMAGE_SOURCE="board/wandboard/uboot-env.txt"

BR2_TARGET_UBOOT_ENVIMAGE_SIZE="0x2000"

BR2_LINUX_KERNEL=y

BR2_LINUX_KERNEL_CUSTOM_GIT=y

BR2_LINUX_KERNEL_CUSTOM_GIT_REPO_URL="git://repo.or.cz/wandboard.git"

BR2_LINUX_KERNEL_CUSTOM_GIT_VERSION="86429847b5152f040f190015faedcac49b243328"

BR2_LINUX_KERNEL_DEFCONFIG="wandboard"

BR2_LINUX_KERNEL_INSTALL_TARGET=y