Dear Daniel,
in message 20021118113139.E892@jupiter.omicron.se you wrote:
x86 should _not_ need any special code here. Do you think it is possible to add support for "standard" mkimage format and get rid of your new #ifdef's?The "standard" mkimage format IS supported, this code add support for Linux images without the mkimage header as well.
I see.
Or better yet not load the kernel at all if the kernel resides in flash, just give do_bootm_linux() a pointer to where the kernel is located.
Right. This is something which I probably should fix on PPC, too (fixed on ARM some time ago).
common/cmd_ide.c: +#ifdef __PPC__ Are you sure this is PPC only?
No, I thought that ide was only used by ppc before, but I se now that IDE is used by the ARM as well. Should perhaps be #ifdef __BIG_ENDIAN ?
But ARM is little endian!
ppcboot/examples/syscall.S:
Are you sure there is only a "ret" needed?
Its a place holder, syscalls are not functional yet.
Then we should rather have a #warning similar to the current styate in ARM.
I think it will be a problem that printf is defined as a syscall because it is a variable argument list function.
How do I know how much of the stack to copy when I enter the firmware?
What do you mean with "stack to copy"? You are running in the U-Boot environment, accessing the U-Boot stack directly. No need to copy anything...
Best regards,
Wolfgang Denk