In message <4A062D477D842B4C8FC48EA5AF2D41F201BA207A at us-bv-m23.global.tektronix.net> you wrote: > > >>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 at denx.de The existence of god implies a violation of causality.
