simple bootloader 2.6.10-rc3 8xx

[Povolotsky, Alexander]

Hi,

I have in .config
...
CONFIG_ADVANCED_OPTIONS=y
CONFIG_HIGHMEM_START=0xfe000000
# CONFIG_LOWMEM_SIZE_BOOL is not set
CONFIG_LOWMEM_SIZE=0x30000000
CONFIG_KERNEL_START_BOOL=y
CONFIG_KERNEL_START=0xc0000000
# CONFIG_TASK_SIZE_BOOL is not set
CONFIG_TASK_SIZE=0x80000000
# CONFIG_CONSISTENT_START_BOOL is not set
CONFIG_CONSISTENT_START=0xff100000
# CONFIG_CONSISTENT_SIZE_BOOL is not set
CONFIG_CONSISTENT_SIZE=0x00200000
CONFIG_BOOT_LOAD_BOOL=y
CONFIG_BOOT_LOAD=0x00400000
...

I get (I did not include ramdisk/initrd into the image loaded) :

loaded at:     00180000 00268160
relocated to:  00400000 004E8160
board data at: 004E6124 004E6140
relocated to:  0040509C 004050B8
zimage at:     00405891 004E5926
avail ram:     004E9000 02000000

Is above dispostion looks correct ?

Then load_kernel() (in arch/ppc/boot/simple/misc-embedded.c) fails during
uncompressing kernel whithin: 

gunzip(0, 0x400000, zimage_start, &zimage_size);

Specifically within gunzip() (in arch/ppc/boot/common/misc-common.c) it
fails after successfully passing 
through zlib_inflateInit2() .  I think it fails in in zlib_inflate() .

Any ideas/advise ?
Why second argument while calling gunzip() is set to 0x400000 ?

Thanks,
Alex