[U-Boot-Users] heap location (PXA)

Hi,

I'm porting u-boot 0.4.0 to a custom PXA255 board similar to the CSB226, of which I used the configuration as a starting point.

What I'm confused about ATM is _armboot_real_end, which is used for heap initialisation with mem_malloc_init() in lib_arm/board.c.

1 - _armboot_real_end has the value 0x0BADC0DE, which is not in RAM, but in FLASH range of the PXA.

2 - the heap is supposed to be located *below* u-boot, not above, since u-boot itself gets relocated to the upper end of RAM.

Therefore I would propose to change

mem_malloc_init (_armboot_real_end); to mem_malloc_init ( _armboot_start - CFG_MALLOC_LEN );

in start_armboot().

I'm interested in any thoughts on the subject.

Thanks, Bernhard