Re: kernel startup

In message [ref] you wrote:

quoted

quoted

How would something compressed uncompress itself?  If u-boot is being used 
it will uncompress a compressed kernel and put the image at physical 0.

Small correction. Just like a self extracting binary, a kernel can have
a decompression code prepended to the start of kernel which can decompress the 
Kernel.  This is how redboot for xscale is structured or syslinux /lilo

No, this is not the kernel,  but  some  additional  component,  often
called "bootstrap loader" or so, which wraps the kernel as payload in
it's own image.

Now, whether cache is enable or not, MMU is enabled/disabled depends on the
Developer. In current u-boot, the MMU is not used. I-Cache is On and D-cache
is off.

This may be correct on  some  specific  boards,  but  it's  wrong  on
others.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
The existence of god implies a violation of causality.