[PATCH 4/9 v3] Add starting of secondary 86xx CPUs.

[Benjamin Herrenschmidt]

> +	.globl __secondary_start_mpc86xx
> +__secondary_start_mpc86xx:
> +	mfspr	r3, SPRN_PIR
> +	stw	r3, __secondary_hold_acknowledge at l(0)
> +	mr	r24, r3			/* cpu # */
> +	b	__secondary_start

The above looks generic enough... why not call it
__secondary_start_PIR ? :) Might be useful for other platforms I
reckon...

>  	.globl	__secondary_start_pmac_0
>  __secondary_start_pmac_0:
>  	/* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
> @@ -1088,7 +1095,12 @@ load_up_mmu:
>  	LOAD_BAT(1,r3,r4,r5)
>  	LOAD_BAT(2,r3,r4,r5)
>  	LOAD_BAT(3,r3,r4,r5)
> -
> +BEGIN_FTR_SECTION
> +	LOAD_BAT(4,r3,r4,r5)
> +	LOAD_BAT(5,r3,r4,r5)
> +	LOAD_BAT(6,r3,r4,r5)
> +	LOAD_BAT(7,r3,r4,r5)
> +END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
>  	blr

Looks good.