[PATCH 4/5] hw/ppc/pnv_xscom: occ common area to be mapped only once

[Balamuruhan S <bala24@linux.ibm.com>]

occ common area should be mapped once and disable it for every
other chip.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Balamuruhan S <bala24@linux.ibm.com>
---
 hw/ppc/pnv_xscom.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
index cb6d6bbcfc..f797a5ec7d 100644
--- a/hw/ppc/pnv_xscom.c
+++ b/hw/ppc/pnv_xscom.c
@@ -98,13 +98,22 @@ static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba)
         return HOMER_SIZE_MASK;
 
     case P9_PBA_BAR2: /* P9 occ common area */
-        return PNV9_OCC_COMMON_AREA(chip);
+        if (!PNV_CHIP_INDEX(chip)) {
+            return PNV9_OCC_COMMON_AREA(chip);
+        }
+        return 0;
     case P8_PBA_BAR3: /* P8 occ common area */
-        return PNV_OCC_COMMON_AREA(chip);
+        if (!PNV_CHIP_INDEX(chip)) {
+            return PNV_OCC_COMMON_AREA(chip);
+        }
+        return 0;
 
     case P9_PBA_BARMASK2: /* P9 occ common area size */
     case P8_PBA_BARMASK3: /* P8 occ common area size */
-        return OCC_SIZE_MASK;
+        if (!PNV_CHIP_INDEX(chip)) {
+            return OCC_SIZE_MASK;
+        }
+        return 0;
 
     case 0x1010c00:     /* PIBAM FIR */
     case 0x1010c03:     /* PIBAM FIR MASK */
-- 
2.14.5