Hi Simon,
On Mon, 2 Feb 2015 22:00:25 -0700 Simon Glass sjg@chromium.org wrote:
Hi,
I have one of boards and would like to get mainline U-Boot booting on it.
I have followed the instructions for creating a BOOT.BIN file comprised of:
- boot.elf
- .bit file
- u-boot.elf
and putting it on a a micro-SD card.
This works OK with the diligent master branch from github. I can boot normally.
However this is 2013.10. Mainline U-Boot uses device tree so presumably the elf file does not work. I expect we need to use u-boot-dtb.bin.
However since this is not an elf file I'm not sure how to build the image using the 'Create Zynq Boot Image' tool.
I don't see any instructions in REAME.zynq about how to create an SD card.
Any pointers please?
I have a Zynq ZC706 board.
The follwing is what I tried to run u-boot mainline.
I hope it will work for Zybo board, too.
[1] If you are using Xilinx hardware tool (Vivado or ISE) you can generate ps7_init.[ch] or ps7_init_gpl.[ch].
Copy the C file and the header into borad/xilinx/zynq directory
[2] Build
make zynq_zybo_defconfig && make
[3] Download the python script to generate boot.bin
git clone git://github.com/Xilinx/u-boot-xlnx.git
Copy tools/zynq-boot-bin.py to ~/bin or somewhere you like
[4] Generate boot.bin
zynq-boot-bin.py -o boot.bin -u u-boot/spl/u-boot-spl.bin
[5] Copy boot.bin and u-boot-dtb.img to your SD card
Please give it a try.
The problem about the instruction above is FPAG bit file is not loaded.
Another way instead of [4] might be:
Describe foo.bif as follows
image: { [bootloader]fsbl.elf fpga.bit [load=0x04000000,startup=0x04000000]u-boot/u-boot-dtb.bin }
and $ bootgen -image foo.bif -w on -o boot.bin
I have not working on Zynq these days. I hope Michal can support us.
Best Regards Masahiro Yamada