[PATCH 1/2] pci-phb: check for the 32-bit overflow

[Nikunj A Dadhania]

With the addition of 64-bit BARS and increase in the mmio address
space, the code was hitting this limit. The memory of pci devices
across the bridges were not accessible due to which the drivers
failed.

Signed-off-by: Nikunj A Dadhania <nikunj at linux.vnet.ibm.com>
---
 board-qemu/slof/pci-phb.fs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/board-qemu/slof/pci-phb.fs b/board-qemu/slof/pci-phb.fs
index 529772f..e307d95 100644
--- a/board-qemu/slof/pci-phb.fs
+++ b/board-qemu/slof/pci-phb.fs
@@ -258,7 +258,8 @@ setup-puid
             decode-64 2 / dup >r                \ Decode and calc size/2
             pci-next-mem @ + dup pci-max-mem !  \ and calc max mem address
             dup pci-next-mmio !                 \ which is the same as MMIO base
-            r> + pci-max-mmio !                 \ calc max MMIO address
+            r> + FFFFFFFF min pci-max-mmio !    \ calc max MMIO address and
+                                                \ check the 32-bit boundary
          ENDOF
          3000000 OF                             \ 64-bit memory space?
 	    decode-64 pci-next-mem64 !
-- 
1.8.3.1