[ECOS] SDRAM setting change on IXP425

VictorLai@aaeon.com.tw VictorLai@aaeon.com.tw
Tue Nov 16 16:18:00 GMT 2004

Dear all,
I am using redboot 1.94 on our ixp425 system. We first use 64M of memory
(4*8M*16), 4 chips on both Bank 0 and Bank1. Everything works great. Now
we'd like to reduce ths memory size from 64M to 32M(2*8M*16). I've changed
the /packages/hal/arm/xscale/ixdp425/current/include/ixdp425.h

#define SDRAM_SIZE                  0x02000000
#define SDRAM_UNCACHED_BASE                0x02000000

Now during the next boot, redboot seems to be ok. But when I load a kernel
image (zImage) and boot to it, I've got the following error message when I
burn the ROM image to the flash with this setting:

Using base address 0x00100000 and length 0x000fed4c
Uncompressing Linux....

invalid compressed format (err=2)

 -- System halted

Has anyone seen this problem or any idea where went wrong?



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