[U-Boot-Users] Best place to implement custom "bootdelay" functionnality

[Laurent Pinchart]

On Tuesday 18 July 2006 11:44, Wolfgang Denk wrote:
> In message <200607181054.37865.laurent.pinchart at tbox.biz> you wrote:
> > common/cmd_fpga.c and common/fpga.c are used to configure the FPGA from
> > an in-memory configuration bitstream. What I'm looking for is a function
> > to load the bitstream from a CramFS partition to memory, much like the
> > fsload command does. Something similar to fpga_load() would be useful,
> > some kind of fs_load(buffer, length, partition, filename).
>
> Good old Unix tradition is to provide small and  simple  tools  which
> perform  one  task,  doing  this  very  well, and which can easily be
> combined. So in the first step you will  load  the  image  file  from
> cramfs  into  RAM, and in the second step you use the FPGA command to
> boot your FPGA.

Agreed.

> What exactly is your problem?

My problem is to load the image file from cramfs into RAM from a C function. 
The fsload command can be used from the command line (or through bootcmd, 
preboot, ...), but I haven't been able to find a simple API to load the image 
file from cramfs into RAM. cramfs_load() takes a struct part_info pointer 
which I don't know how to provide, and I haven't found a way to get the size 
of a file to allocate the buffer using malloc.

Best regards,

Laurent Pinchart