occ: Don't do bad XSCOMs on P7

The OCC interrupt register only exists on P8, accessing it on P7 causes
not only error logs but also causes PRD to eventually gard chips.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/hw/occ.c b/hw/occ.c
index 99a1b1e..5d0e34d 100644
--- a/hw/occ.c
+++ b/hw/occ.c
@@ -536,8 +536,8 @@ static struct fsp_client fsp_occ_client = {
 
 void occ_send_dummy_interrupt(void)
 {
-	/* Mambo chip doesn't do this */
-	if (is_mambo_chip)
+	/* Mambo chip and P7 don't do this */
+	if (is_mambo_chip || proc_gen != proc_gen_p8)
 		return;
 	xscom_writeme(OCB_OCI_OCCMISC_OR,
 		      OCB_OCI_OCIMISC_IRQ |