resume from sleeping for au1x00

Hello,

someone are using u-boot to resume from sleeping with au1x00 MIPS processor?

I'm just looking at linux code into file arch/mips/au1000/common/sleeper.S. The function save_and_sleep() does:

        /* Now set up the scratch registers so the boot rom will
         * return to this point upon wakeup.
         */
        la      k0, 1f
        lui     k1, 0xb190
        ori     k1, 0x18
        sw      sp, 0(k1)
        ori     k1, 0x1c
        sw      k0, 0(k1)

so I suppose that, at wake up, these ?scratch registers? can be used by u-boot to restart at correct location... is that right? :-o

Thanks in advance,

Rodolfo

GNU/Linux Solutions                  e-mail:    giometti at linux.it
Linux Device Driver                             giometti at enneenne.com
Embedded Systems                     home page: giometti.enneenne.com
UNIX programming                     phone:     +39 349 2432127