Merge branch 'next' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx

2 files changed, 20 insertions, 0 deletions

diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index cfbd2aae93e..7fd49c97501 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.
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index b4a54c52e88..fb368dfde5d 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -75,6 +75,11 @@ static void fixup_ppc4xx_pci_bridge(struct pci_dev *dev)
             !of_device_is_compatible(hose->dn, "ibm,plb-pci"))
                 return;
 
+        if (of_device_is_compatible(hose->dn, "ibm,plb440epx-pci") ||
+                of_device_is_compatible(hose->dn, "ibm,plb440grx-pci")) {
+                hose->indirect_type |= PPC_INDIRECT_TYPE_BROKEN_MRM;
+        }
+
         /* Hide the PCI host BARs from the kernel as their content doesn't
          * fit well in the resource management
          */
@@ -1634,6 +1639,15 @@ static void __init ppc4xx_probe_pciex_bridge(struct device_node *np)
         }
         port = &ppc4xx_pciex_ports[portno];
         port->index = portno;
+
+        /*
+         * Check if device is enabled
+         */
+        if (!of_device_is_available(np)) {
+                printk(KERN_INFO "PCIE%d: Port disabled via device-tree\n", port->index);
+                return;
+        }
+
         port->node = of_node_get(np);
         pval = of_get_property(np, "sdr-base", NULL);
         if (pval == NULL) {