Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6] / arch / x86 / pci / irq.c

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index d98c6b096f8e34e7c4877521bf69fa5b9dff400d..c52150fdf82b51015515c1a7bb3716be515a7ef7 100644 (file)
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -492,6 +492,26 @@ static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq
        return 1;
 }
 
+/*
+ * PicoPower PT86C523
+ */
+static int pirq_pico_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
+{
+       outb(0x10 + ((pirq - 1) >> 1), 0x24);
+       return ((pirq - 1) & 1) ? (inb(0x26) >> 4) : (inb(0x26) & 0xf);
+}
+
+static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
+                       int irq)
+{
+       unsigned int x;
+       outb(0x10 + ((pirq - 1) >> 1), 0x24);
+       x = inb(0x26);
+       x = ((pirq - 1) & 1) ? ((x & 0x0f) | (irq << 4)) : ((x & 0xf0) | (irq));
+       outb(x, 0x26);
+       return 1;
+}
+
 #ifdef CONFIG_PCI_BIOS
 
 static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
@@ -721,6 +741,24 @@ static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router,
        return 1;
 }
                
+static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
+{
+       switch (device) {
+       case PCI_DEVICE_ID_PICOPOWER_PT86C523:
+               r->name = "PicoPower PT86C523";
+               r->get = pirq_pico_get;
+               r->set = pirq_pico_set;
+               return 1;
+
+       case PCI_DEVICE_ID_PICOPOWER_PT86C523BBP:
+               r->name = "PicoPower PT86C523 rev. BB+";
+               r->get = pirq_pico_get;
+               r->set = pirq_pico_set;
+               return 1;
+       }
+       return 0;
+}
+
 static __initdata struct irq_router_handler pirq_routers[] = {
        { PCI_VENDOR_ID_INTEL, intel_router_probe },
        { PCI_VENDOR_ID_AL, ali_router_probe },
@@ -732,6 +770,7 @@ static __initdata struct irq_router_handler pirq_routers[] = {
        { PCI_VENDOR_ID_VLSI, vlsi_router_probe },
        { PCI_VENDOR_ID_SERVERWORKS, serverworks_router_probe },
        { PCI_VENDOR_ID_AMD, amd_router_probe },
+       { PCI_VENDOR_ID_PICOPOWER, pico_router_probe },
        /* Someone with docs needs to add the ATI Radeon IGP */
        { 0, NULL }
 };