Hi Simon,
On 04/15/2015 05:02 AM, Simon Glass wrote:
(Correcting address for Masahiro)
On 14 April 2015 at 21:00, Simon Glass sjg@chromium.org wrote:
Hi,
On 3 February 2015 at 03:08, Michal Simek monstr@monstr.eu wrote:
Hi Simon and Masahiro,
On 02/03/2015 08:32 AM, Masahiro Yamada wrote:
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.
I think the best what you can do is simple disable CONFIG_OF_CONTROL from mainline u-boot and do not use now. This is what I do in xilinx tree but OF_CONTROL is also working fine but needs some setup.
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.
Zybo will be just the same.
[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 likeIn future I want to move this script to be the part of mkimage but it has low priority now.
[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.
yes - but if you use xilinx tree I have also added support for loading bitstream by SPL. I just haven't sent it to mainline yet. But you can simple load bitstream in full u-boot which is fully supported in mainline.
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
yes - this should also work.
I have not working on Zynq these days.
why not? :-)
I hope Michal can support us.
Simon: Let me know if you need any my help on this. I have zybo here that I can try it.
Thanks for your help!
Here's what works for me:
CROSS_COMPILE=/opt/xilinx/SDK/2014.4/gnu/arm/lin/bin/arm-xilinx-linux-gnueabi- make O=b/zynq_zybo zynq_zybo_defconfig
CROSS_COMPILE=/opt/xilinx/SDK/2014.4/gnu/arm/lin/bin/arm-xilinx-linux-gnueabi- make O=b/zynq_zybo -j10 -s
/opt/xilinx/SDK/2014.4/bin/bootgen -image try.bif -w on -o boot.bin; cp boot.bin /media/sglass/A097-A1D5/BOOT.bin; cp u-boot-dtb.img /media/sglass/A097-A1D5/.
try.bif: image: { [bootloader]/vid/software/devel/zynq/play/play.sdk/boot/Debug/boot.elf
what's boot.elf here? Is it u-boot SPL?
/vid/software/devel/zynq/play/play.sdk/design_1_wrapper_hw_platform_0/design_1_wrapper.bit [load = 0x04000000,startup=0x04000000]/vid/software/devel/zynq/u-boot-dtb.bin }
I'm a bit unclear why I say u-boot-dtb.bin in the try.big file but it actually loads u-boot-dtb.img.
if boot.elf is u-boot-spl then you don't need to add u-boot-dtb.bin to BIF at all because in MMC mode u-boot-dtb.img will be loaded instead.
If I use the zynq-boot script I can do this:
zynq-boot-bin.py -o boot.bin -u spl/u-boot-spl.bin cp boot.bin /media/sglass/A097-A1D5/BOOT.bin; cp u-boot-dtb.img /media/sglass/A097-A1D5/.
and then I get a message from SPL and it boots also. I'm not sure why.
u-boot-spl.bin is placed to OCM. In SD/MMC node SPL loads u-boot-dtb.img from SD to DDR and jump to it.
Thanks, Michal