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powerpc: Fix 32-bit SMP boot on CHRP 

prom_init was changed to take a new argument, the address
where the kernel is loaded, which is now used to copy the
SMP spin loop down before use.

However, only head_64.S was adapted to pass this new value,
not head_32.S, thus breaking SMP boot on 32-bit SMP CHRP
machines.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt 2008-10-13 18:38:48 +00:00
parent 7b6b574ca7
commit 2bda347bc5
1 changed files with 6 additions and 0 deletions
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6
arch/powerpc/kernel/head_32.S
View File

@ -110,6 +110,12 @@ __start:
#ifdef CONFIG_PPC_MULTIPLATFORM #ifdef CONFIG_PPC_MULTIPLATFORM
cmpwi 0,r5,0 cmpwi 0,r5,0
beq 1f beq 1f
/* find out where we are now */
bcl 20,31,$+4
0: mflr r8 /* r8 = runtime addr here */
addis r8,r8,(_stext - 0b)@ha
addi r8,r8,(_stext - 0b)@l /* current runtime base addr */
bl prom_init bl prom_init
trap trap
#endif #endif