9 Oct
2012
9 Oct
'12
1:05 p.m.
On Mon, Oct 08, 2012 at 02:59:17PM +0100, Jon Medhurst (Tixy) wrote:
From: Jon Medhurst tixy@linaro.org
Check all the CPU affinity fields of MPIDR, so we select only the first CPU of the first cluster as the one to boot on.
Shame, we can't run this on pre-v7 CPUs now ;) (Well, v6T2).
The chance of us wanting to do that (motivating bic instead of bfc) is minimal, though.
Acked-by: Dave Martin dave.martin@linaro.org
Signed-off-by: Jon Medhurst tixy@linaro.org
boot.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/boot.S b/boot.S index 727119a..40ebd33 100644 --- a/boot.S +++ b/boot.S @@ -121,7 +121,7 @@ start: @ Check CPU nr again mrc p15, 0, r0, c0, c0, 5 @ MPIDR (ARMv7 only)
- and r0, r0, #15 @ CPU number
- bfc r0, #24, #8 @ CPU number, taking multicluster into account cmp r0, #0 @ primary CPU? beq 2f
1.7.10.4