I’d like to use the gnuradio openembedded SDK and image that are
available here [1] to reproduce the work here [2] without building my
own openembedded image. I’m having trouble getting a working boot.bin
for Zedboard without doing a full openembedded build. I know that there
are licensing issues that may prohibit distributing an FSBL file, but
I’ve gone ahead and done that using the directions in [2]. I’d like to
compile boot.bin with the zynq_fsbl.bit I created with Xilinx 14.6,
uImage, and the device tree binary distributed in [1]. However, in order
to use the build script in zynq-acp, I need u-boot.elf, and [1] only
provides u-boot.bin. Is there another way to compile these without doing
a full openembedded build?
[1] http://gnuradio.org/data/sdk/zedboard_armv7a-sf-vfp-neon/
[2] http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq
Thanks,
Sean
A number of different distributions include a u-boot.elf suitable for
the
Zedboard. I’m not a linux boot expert, but u-boot seems pretty
platform-agnostic when paired with a suitable FSBL.
The images here include a u-boot.elf that works with Zedboard, ZC702,
ZC706, etc.
http://wiki.analog.com/resources/tools-software/linux-software/zynq_images
Email me directly and I’ll just send you the .elf if you’re interested.
–n
On Tue, Dec 9, 2014 at 7:27 AM, Nowlan, Sean
[email protected]
On 12/09/2014 12:16 PM, Nick F. wrote:
A number of different distributions include a u-boot.elf suitable for the
Zedboard. I’m not a linux boot expert, but u-boot seems pretty
platform-agnostic when paired with a suitable FSBL.
The images here include a u-boot.elf that works with Zedboard, ZC702,
ZC706, etc.
resources:tools-software:linux-software:zynq_images [Analog Devices Wiki]
Email me directly and I’ll just send you the .elf if you’re interested.
A pox on people using ancient stuff.
I think Sean wants to load an fpga image early in the boot process.
Try the image I posted a few days ago and drop a file called fpga.bin in
the FAT partition. U-boot SPL will load that fpga.bin file then load
u-boot.
You can now build the fsbl directly from u-boot but dropping the ps7*
files in the right place. (See the OE recipe for how that is done there,
and copy if you are building u-boot from Xilinx git)
My understanding is the current release of Xilinx tools will give you
ps7 files with a license that is compatible with the GPL.
Philip
On 12/09/2014 12:16 PM, Nick F. wrote:
A number of different distributions include a u-boot.elf suitable for
the Zedboard. I’m not a linux boot expert, but u-boot seems pretty
platform-agnostic when paired with a suitable FSBL.
A lot of u-boots I’ve found point to a ramdisk filesystem instead of a
partition.
The images here include a u-boot.elf that works with Zedboard, ZC702,
ZC706, etc.
http://wiki.analog.com/resources/tools-software/linux-software/zynq_im
ages
Email me directly and I’ll just send you the .elf if you’re interested.
A pox on people using ancient stuff.
I think Sean wants to load an fpga image early in the boot process.
Not trying to do anything fancy; just trying to reproduce Jonathan
Pendlum’s FFT filter example, which was written back when that ancient
stuff was current. I think it’d be good for that to be updated for
people who want to run GNU Radio on Zynq. I know RFNoC will change how
that’s done with E310, but we don’t need RFNoC for
MicroZed/ZedBoard/ZC70x. I’m happy to help with the writeup if/when I
figure all this out.
Try the image I posted a few days ago and drop a file called fpga.bin in the FAT
partition. U-boot SPL will load that fpga.bin file then load u-boot.
You can now build the fsbl directly from u-boot but dropping the ps7* files in
the right place. (See the OE recipe for how that is done there, and copy if you
are building u-boot from Xilinx git)
I’ll try your newer image.
My understanding is the current release of Xilinx tools will give you
ps7 files with a license that is compatible with the GPL.
Philip
for Zedboard without doing a full openembedded build. I know that
there are licensing issues that may prohibit distributing an FSBL
file, but I’ve gone ahead and done that using the directions in [2].
I’d like to compile boot.bin with the zynq_fsbl.bit I created with
Xilinx 14.6, uImage, and the device tree binary distributed in [1].
However, in order to use the build script in zynq-acp, I need
u-boot.elf, and [1] only provides u-boot.bin. Is there another way to compile
these without doing a full openembedded build?
.>>
On 12/09/2014 02:21 PM, Nowlan, Sean wrote:
On 12/09/2014 12:16 PM, Nick F. wrote:
A number of different distributions include a u-boot.elf suitable for
the Zedboard. I’m not a linux boot expert, but u-boot seems pretty
platform-agnostic when paired with a suitable FSBL.
A lot of u-boots I’ve found point to a ramdisk filesystem instead of a
partition.
Modern ones let us use the uEnv.txt file to control u-boots behavior.
Philip
On Tue, Dec 9, 2014 at 11:21 AM, Nowlan, Sean
[email protected]
wrote:
On 12/09/2014 12:16 PM, Nick F. wrote:
A number of different distributions include a u-boot.elf suitable for
the Zedboard. I’m not a linux boot expert, but u-boot seems pretty
platform-agnostic when paired with a suitable FSBL.
A lot of u-boots I’ve found point to a ramdisk filesystem instead of a
partition.
That option should be pulled in from the devicetree, at least for sane
u-boots! The one I linked appears to be a sane u-boot.
Hey, if it loads the kernel and FPGA it does everything I need it to do.
The linked one is used in ADI’s FMCOMMS distro and loads an FPGA image
before the kernel boots, if you put the bitfile into the compiled
boot.bin
created by the Xilinx SDK.
Is there anything a newer u-boot buys me? If so I’ll go through the
legwork
of rebuilding from recent sources. If not I’ll keep on keepin’ on. 
–n