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