[U-Boot-Users] [PATCH V2] Add the Harris QUAD100HD AMCC 405EP-based board.

[Gary Jennejohn]

On Sun, 27 Apr 2008 14:01:45 +0200
Stefan Roese <sr at denx.de> wrote:

> On Saturday 26 April 2008, Gary Jennejohn wrote:
> > > > +#define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Monitor	*/
> > > > +#define CFG_MALLOC_LEN		(128 * 1024)	/* Reserve 128 kB for malloc()	*/
> > > > +#define CFG_MONITOR_BASE	0xFFF80000
> > >
> > > CFG_MONITOR_BASE at 0xfff80000 makes me think that the U-Boot image has a
> > > size of 512k. But CFG_MONITOR_LEN is 256k. Which one is correct? I would
> > > think that 256k should be enough for this image.
> >
> > That's a valid point.  Actually u-boot.bin is 512kB in length, but only
> > because there's a reset vector at 0xFFFFFFFC.  u-boot itself is really
> > only 256kB in size.
> >
> > So now I wonder - what's correct?  If CFG_MONITOR_LEN applies to RAM,
> > which it seems to since it only really affects TOTAL_MALLOC_LEN, then
> > 256kB is correct and no change is required.
> 
> I would change the image size to 256k to safe some space in FLASH. For this 
> you have to change TEXT_BASE (in config.mk in your board directory) to 
> 0xfffc0000. And CFG_MONITOR_BASE too. Or even better:
> 
> #define CFG_MONITOR_BASE        (TEXT_BASE)
> 

Well, I took these values from PPCBoot, as used by the customer, and I
see no technical reason to change these values with which the customer
is obviously satisfied.

---
Gary Jennejohn
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