u-boot/doc/README.nios2

1 Nios II is a 32-bit embedded-processor architecture designed
10 The Nios II port of u-boot is controlled by device tree. Please check
11 out doc/README.fdt-control.
13 To add a new board/configuration (eg, mysystem) to u-boot, you will need
16 1. The device tree source which describes the hardware, dts file.
17     arch/nios2/dts/mysystem.dts
30 $ java -jar sopc2dts.jar --force-altr -i mysystem.sopcinfo -o mysystem.dts
32 You will need to add additional properties to the dts. Please find an
33 example at, arch/nios2/dts/10m50_devboard.dts.
35 1. Add "stdout-path=..." property with your serial path to the chosen
36 node, like this,
38 		stdout-path = &uart_0;
58 Nios II architecture  --->
60 Device Tree Control  --->
66 ( ) Separate DTB for DT control, will cat the dtb to end of u-boot
67 binary, output u-boot-dtb.bin. This should be used for production.
69 copies all the u-boot-dtb.bin, not just u-boot.bin.
71 ( ) Embedded DTB for DT control, will include the dtb inside the u-boot
72 binary. This is handy for development, eg, using gdb or nios2-download.
91 $ export CROSS_COMPILE=nios2-elf-  (or nios2-linux-gnu-)