Re: [ECOS] Redboot image size and CYGMEM_REGION_rom_SIZE

[Andrew Lunn <andrew at lunn dot ch>]

On Mon, Oct 16, 2006 at 02:47:02PM +0200, Claudio Di Vittorio wrote:
> Hi everyone!
> 
> I have a question about the parameter
> CYGMEM_REGION_rom_SIZE.
> 
> I'm building a quite "large" image of redboot (it
> includes a custom firmware for an fpga, and the image
> size exceeds the address 0x80000 .. i will try to
> reduce this later)
> 
> If i compile the image, the linker complains about the
> 
> rom_size (almost every section is out of rom
> addressing).
> 
> I'm using the ixdp465 and i've seen that
> in mlt_arm_xscale_ixdp465_*.h that parameter is
> defined as
> 
> #define CYGMEM_REGION_rom_SIZE 0x80000
> 
> the same value is defined in
> mlt_arm_xscale_ixdp465_*.ldi
> 
> now i'm using a 32 MByte flash memory (so the rom size
> become 0x2000000)
> 
> now i changed that value in both definitions
> file (and also in target.ld) and then rebuild RedBoot
> (completely, deleting old headers and binaries).
> I load in flash memory (using the fis utility of
> RedBoot) but when i reset, the platform hangs during
> bootup..
> 
> Am i missing something?

Does the MMU setup need changing? It could be the MMU is not allowing
access to all the flash. Check the HAL.

       Andrew

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