3 files changed, 19 insertions, 2 deletions

diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index b16ca3ed65d2..78f1f7cca0a0 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -165,7 +165,7 @@ static int cpm2_set_irq_type(unsigned int virq, unsigned int flow_type)
                         edibit = (14 - (src - CPM2_IRQ_EXT1));
         else
                 if (src >= CPM2_IRQ_PORTC15 && src <= CPM2_IRQ_PORTC0)
-                        edibit = (31 - (src - CPM2_IRQ_PORTC15));
+                        edibit = (31 - (CPM2_IRQ_PORTC0 - src));
                 else
                         return (flow_type & IRQ_TYPE_LEVEL_LOW) ? 0 : -EINVAL;
 
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 88a983ece5c9..9a89cd3e80a2 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -890,7 +890,7 @@ unsigned int ipic_get_irq(void)
         return irq_linear_revmap(primary_ipic->irqhost, irq);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_SUSPEND
 static struct {
         u32 sicfr;
         u32 siprr[2];
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index 77fae5f64f2e..5558d932b4d5 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -204,6 +204,23 @@ static int __init ppc4xx_setup_one_pci_PMM(struct pci_controller	*hose,
 {
         u32 ma, pcila, pciha;
 
+        /* Hack warning ! The "old" PCI 2.x cell only let us configure the low
+         * 32-bit of incoming PLB addresses. The top 4 bits of the 36-bit
+         * address are actually hard wired to a value that appears to depend
+         * on the specific SoC. For example, it's 0 on 440EP and 1 on 440EPx.
+         *
+         * The trick here is we just crop those top bits and ignore them when
+         * programming the chip. That means the device-tree has to be right
+         * for the specific part used (we don't print a warning if it's wrong
+         * but on the other hand, you'll crash quickly enough), but at least
+         * this code should work whatever the hard coded value is
+         */
+        plb_addr &= 0xffffffffull;
+
+        /* Note: Due to the above hack, the test below doesn't actually test
+         * if you address is above 4G, but it tests that address and
+         * (address + size) are both contained in the same 4G
+         */
         if ((plb_addr + size) > 0xffffffffull || !is_power_of_2(size) ||
             size < 0x1000 || (plb_addr & (size - 1)) != 0) {
                 printk(KERN_WARNING "%s: Resource out of range\n",