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-rw-r--r--arch/powerpc/platforms/cell/spu_manage.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index 5eb88346181..0e14f532500 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -48,10 +48,18 @@ static u64 __init find_spu_unit_number(struct device_node *spe)
{
const unsigned int *prop;
int proplen;
+
+ /* new device trees should provide the physical-id attribute */
+ prop = of_get_property(spe, "physical-id", &proplen);
+ if (proplen == 4)
+ return (u64)*prop;
+
+ /* celleb device tree provides the unit-id */
prop = of_get_property(spe, "unit-id", &proplen);
if (proplen == 4)
return (u64)*prop;
+ /* legacy device trees provide the id in the reg attribute */
prop = of_get_property(spe, "reg", &proplen);
if (proplen == 4)
return (u64)*prop;