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The TS-7680 defconfig does not build with gcc 8.x and 9.x because it uses an old 3.14 kernel. Technologic Systems, the board manufacturer recently released an updated 4.9 based kernel on a separate repository on github. Bump the kernel release from 3.14.28 to 4.19.186 and update the linux defconfig name as requested in the TS-7680 documentation [1]. [1] https://wiki.embeddedarm.com/wiki/TS-7680#Linux_4.9.y Signed-off-by: Julien Grossholtz <julien.grossholtz@openest.io> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> |
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genimage.cfg | ||
readme.txt |
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 4.9 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.