Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=06be64...
Commit: 06be64a366885569f46a7e0e50b351266d28f5fc
Parent: c64ef80b517680f1e228b2ee55e3ce7cd94c7fe0
Author: Haiying Wang <Haiying.Wang@freescale.com>
AuthorDate: Thu Nov 13 07:46:12 2008 -0600
Committer: Kumar Gala <galak@kernel.crashing.org>
CommitDate: Wed Dec 3 10:51:01 2008 -0600
powerpc/85xx: Don't reset the MPIC for CAMP mode on MPC8572DS
The flag MPIC_WANTS_RESET shouldn't be set if we are doing cooperative
asymmetric MP. The second linux shouldn't reset the pic or the first
one gets very confused.
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
arch/powerpc/platforms/85xx/mpc85xx_ds.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 613bf8c..a8301c8 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -63,6 +63,7 @@ void __init mpc85xx_ds_pic_init(void)
struct device_node *cascade_node = NULL;
int cascade_irq;
#endif
+ unsigned long root = of_get_flat_dt_root();
np = of_find_node_by_type(NULL, "open-pic");
if (np == NULL) {
@@ -76,11 +77,19 @@ void __init mpc85xx_ds_pic_init(void)
return;
}
- mpic = mpic_alloc(np, r.start,
+ if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) {
+ mpic = mpic_alloc(np, r.start,
+ MPIC_PRIMARY |
+ MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
+ 0, 256, " OpenPIC ");
+ } else {
+ mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET |
MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
+ }
+
BUG_ON(mpic == NULL);
of_node_put(np);
--
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