1 files changed, 6 insertions, 0 deletions

diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index cfbd2aae93e8..7fd49c97501a 100644
--- a/arch/powerpc/sysdev/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
@@ -123,6 +123,12 @@ indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
                         (bus->number == hose->first_busno))
                 val &= 0xffffff00;
 
+        /* Workaround for PCI_28 Errata in 440EPx/GRx */
+        if ((hose->indirect_type & PPC_INDIRECT_TYPE_BROKEN_MRM) &&
+                        offset == PCI_CACHE_LINE_SIZE) {
+                val = 0;
+        }
+
         /*
          * Note: the caller has already checked that offset is
          * suitably aligned and that len is 1, 2 or 4.