diff options
Diffstat (limited to 'arch/x86/pci/irq.c')
| -rw-r--r-- | arch/x86/pci/irq.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index d98c6b096f8..c52150fdf82 100644 --- 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 } }; |