my cpu is MPC860, use u-boot-1.1.4, linux-2.6.20.14

i use the "tftp 300000 uImage" command download kernel image,

then use the "bootm 300000" command boot the image.

i found the bootm cmd entered the /arch/ppc/kernel/head_8xx.s, stop at the instruction "rfi".

is it right? after the instruction, where does the code go normally ? what should i do now?

thanks

.globl __start
__start:
mr r31,r3 /* save parameters */
mr r30,r4
mr r29,r5
mr r28,r6
mr r27,r7

/* We have to turn on the MMU right away so we get cache modes
* set correctly.
*/
bl initial_mmu

/* We now have the lower 8 Meg mapped into TLB entries, and the caches
* ready to work.
*/

turn_on_mmu:
mfmsr r0
ori r0,r0,MSR_DR|MSR_IR
mtspr SPRN_SRR1,r0
lis r0,start_here@h
ori r0,r0,start_here@l
mtspr SPRN_SRR0,r0
SYNC
rfi /* enables MMU */

poorbeyond

2007-07-27