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u-Boot configuration for DSP-Startup

Added by Christian Rückl about 12 years ago

Hi,

At the moment I'm at a point where I don't know how...

I have a DSP-image and want to load it at the startup. I red in the u-Boot wiki that there is a special command bootdsp available for this.

But my first question about this, where can I store the DSP-image? Is there a dedicated memory-location for it?

My 2nd question:
How do I have to change the configuration of uBoot (bootcmd,...) to load the DSP-image?

3rd question:
When I have FPGA-image, how does it works to programm this image into the FPGA during the startup-sequence?

Thanks in advanced,
Christian


Replies (4)

RE: u-Boot configuration for DSP-Startup - Added by Tim Iskander about 12 years ago

Christian
You can store the DSP image in flash. I am assuming you are running a DSP-only setup (i.e. no linux system running).
To change the boot command you stop the u-boot process (press enter before the count-down ends) and edit the environment.
you really just want to change the bootm part in the command to bootdsp.
something like (assuming you stored the dsp image in flash where the linux kernel normally would be)

set bootcmd "sf probe 0; sf read 0xc0700000 0x100000 0x280000;bootdsp 0xc0700000"

u-boot can load the FPGA image for you, see http://support.criticallink.com/redmine/projects/arm9-platforms/wiki/Programming_the_FPGA

cheers
/Tim

RE: u-Boot configuration for DSP-Startup - Added by Christian Rückl about 12 years ago

Thank you Tom for your quick answer!

For the moment I have a DSP-only setup but later I want to use both: Linux and my DSP-application.

Can you explain me also how I can startup both?

Christian

RE: u-Boot configuration for DSP-Startup - Added by Christian Rückl almost 12 years ago

Tim,

It's working now.

Thanks!
Christian

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