|
@@ -0,0 +1,52 @@
|
|
|
+Technologic Systems TS-4900
|
|
|
+===========================
|
|
|
+
|
|
|
+This document explains how to set up a basic Buildroot system for the
|
|
|
+Technologic Systems TS-4900 System on Module.
|
|
|
+
|
|
|
+The TS-4900 is a TS-SOCKET macrocontroller board based on the
|
|
|
+Freescale i.MX6 Single or Quad Core ARM Cortex-A9 CPU clocked at
|
|
|
+1GHz. The TS-4900 features Gigabit Ethernet, SATA II Port, PCI Express
|
|
|
+Bus, high speed USB host and device (OTG), and microSD card.
|
|
|
+More details on the board here:
|
|
|
+ http://wiki.embeddedarm.com/wiki/TS-4900
|
|
|
+
|
|
|
+The TS-4900 is not currently supported by mainline Linux, so a
|
|
|
+Technologic Systems Linux is used based on Linux 4.1.
|
|
|
+The default U-boot configuration flashed scans the SD card to find the
|
|
|
+0x83 partition type, corresponding to the rootfs. Then it will load
|
|
|
+both uImage and dts from the /boot directory.
|
|
|
+To build the default configuration you only have to:
|
|
|
+
|
|
|
+ $ make ts4900_defconfig
|
|
|
+ $ make
|
|
|
+
|
|
|
+The output looks like:
|
|
|
+output/images/
|
|
|
+├── imx6q-ts4900.dtb
|
|
|
+├── rootfs.ext2
|
|
|
+├── rootfs.tar
|
|
|
+├── sdcard.img
|
|
|
+└── uImage
|
|
|
+
|
|
|
+Since both the uImage and the dts are contained in the /boot
|
|
|
+directory, the provided post-image script generates an image file
|
|
|
+containing only one partition for the rootfs:
|
|
|
+
|
|
|
+ $ fdisk output/images/sdcard.img
|
|
|
+ Device Boot Start End Blocks Id System
|
|
|
+output/images/sdcard.img1 1 524288 262144 83 Linux
|
|
|
+
|
|
|
+This image can be directly written to an SD card.
|
|
|
+
|
|
|
+ $ sudo dd if=output/images/sdcard.img of=/dev/mmcblk0
|
|
|
+
|
|
|
+In order to test the image on TS-4900 board, a TS baseboard, such as
|
|
|
+the TS-9xxx series, is needed to provide power, console header, RJ45
|
|
|
+connector etc.
|
|
|
+
|
|
|
+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
|
|
|
+http://wiki.embeddedarm.com/wiki/TS-4900#U-Boot for details on which
|
|
|
+U-Boot config to use and how to flash it.
|