[U-Boot] How to handle binary data file in u-boot

[Lv Terry-R65388]

Hi Reinhard,

	Thank you very much.

	:)

Yours
Terry 

> -----Original Message-----
> From: Reinhard Meyer [mailto:reinhard.meyer at emk-elektronik.de] 
> Sent: 2010年7月29日 15:45
> To: Lv Terry-R65388
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] How to handle binary data file in u-boot
> 
> Lv Terry-R65388 wrote:
> > Hi Experts,
> >  
> >     We have implemented an display utilty in u-boot and this utlity 
> > needs a waveform file.
> >  
> >     We are planning to release this display utility, but we 
> don't know 
> > how to do with the waveform file. The file is as large as 800KB.
> >   
> Files that large are usually not embedded within the u-boot image.
> >  
> >     Now we just put the waveform file on mmc and read it 
> out in boot.
> >   
> It depends where your u-boot image is. If its in NOR flash, 
> for example, one would add a partition of suitable size to 
> put the data in.
> If the external location can be flexibly defined (filename 
> for SD/MMC or location for others) it is great.
> >  
> >     Is there any better way to deliver this binary waveform file as 
> > part of the bootloader?
> >   
> As part of the bootloader (image) you'd need to convert the 
> bytestream into a lengthy initialized array and link it into 
> the image. I'm not sure the toolchain can handle that and I 
> am sure that method is not welcome in the repository (800kb 
> binary --> several MB c-source)...
> >     How is this case  typically handled?
> >   
> Have a look at the code to handle FPGA images, you can 
> probably even reuse or share code with there.
> 
> Reinhard
> 
>