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configs: add defconfig for TS-7680

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The TS-7680 is an i.MX286 ARM ARM926EJ-S board with 10/100 Ethernet,
USB port, eMMC and CAN ports.

The TS-7680 uses a 3.14.28 Linux kernel provided by Technologic Systems:
https://github.com/embeddedarm/linux-3.14.28-imx28

U-Boot is not provided as the manufacturer recommends not to update the
built-in bootloader.

For more informations please see:
https://wiki.embeddedarm.com/wiki/TS-7680

Signed-off-by: Julien Grossholtz <julien.grossholtz@savoirfairelinux.com>
[Thomas: use same headers as the kernel being built, update .gitlab-ci.yml.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Julien Grossholtz 2017-08-24 17:07:00 -04:00 committed by Thomas Petazzoni
parent 089ad9cefd
commit 9a56487c63
4 changed files with 83 additions and 0 deletions
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1
.gitlab-ci.yml
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@ -206,6 +206,7 @@ toradex_apalis_imx6_defconfig: *defconfig
ts4800_defconfig: *defconfig
ts4900_defconfig: *defconfig
ts5x00_defconfig: *defconfig
ts7680_defconfig: *defconfig
wandboard_defconfig: *defconfig
warp7_defconfig: *defconfig
warpboard_defconfig: *defconfig

14
board/technologic/ts7680/genimage.cfg Normal file
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@ -0,0 +1,14 @@
image sdcard.img {
hdimage {
}
partition unused {
size = 512B
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
size = 256M
}
}

51
board/technologic/ts7680/readme.txt Normal file
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@ -0,0 +1,51 @@
Technologic Systems TS-7680 SBC
===============================
This document explains how to set up a basic Buildroot system for
the Technologic Systems TS-7680 Single Board Computer.
The TS-7680 SBC is based on the Freescale i.MX286 ARM ARM926EJ-S
running at 454MHz. The TS-7680 features are 10/100 Ethernet ports,
Wi-Fi, microSD card, eMMC, NOR Flash, USB host port, CAN ports,
relays and ADC/DAC. More details on the board here:
https://wiki.embeddedarm.com/wiki/TS-7680
The TS-7680 uses a 3.14.28 Linux kernel provided by
Technologic Systems.
To build the default configuration you only have to run:
$ make ts7680_defconfig
$ make
The output looks like:
output/images
├── imx28-ts7680.dtb
├── rootfs.ext2
├── rootfs.ext4 -> rootfs.ext2
├── rootfs.tar
├── sdcard.img
└── uImage
The provided genimage configuration generates an image file containing
two partitions. The first one is unused, but mandatory as the
TS-7680 built-in bootloader loads the Linux uImage from the /boot
directory in the second partition. The second partition contains the
rootfs with the Linux uImage into the /boot directory.
$ fdisk output/images/sdcard.img
output/images/sdcard.img1 1 1 1 512B 0 Empty
output/images/sdcard.img2 2 524289 524288 256M 83 Linux
This image can be directly written to an SD card.
$ sudo dd if=output/images/sdcard.img of=/dev/mmcblk0
To boot with Buildroot, insert this SD card on the board, make sure
the SD jumper is present and the U-Boot jumper is not.
The bootloader comes pre-flashed on the board on an SPI flash. Since
updating the bootloader is risky and not trivial, it is not included
in the Buildroot defconfig. Refer to
https://wiki.embeddedarm.com/wiki/TS-7680#U-Boot for details on
which U-Boot config to use and how to flash it.

17
configs/ts7680_defconfig Normal file
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@ -0,0 +1,17 @@
BR2_arm=y
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_14=y
BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/technologic/ts7680/genimage.cfg"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_GIT=y
BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/embeddedarm/linux-3.14.28-imx28.git"
BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="ff01621df09b97d9fd546d1b49f4013060142892"
BR2_LINUX_KERNEL_DEFCONFIG="ts76xx"
BR2_LINUX_KERNEL_UIMAGE=y
BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x40008000"
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx28-ts7680"
BR2_LINUX_KERNEL_INSTALL_TARGET=y
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_PACKAGE_HOST_GENIMAGE=y