diff options
Diffstat (limited to 'kernel/arch/mips/pci/pci-lasat.c')
-rw-r--r-- | kernel/arch/mips/pci/pci-lasat.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/kernel/arch/mips/pci/pci-lasat.c b/kernel/arch/mips/pci/pci-lasat.c new file mode 100644 index 000000000..40d2797d2 --- /dev/null +++ b/kernel/arch/mips/pci/pci-lasat.c @@ -0,0 +1,88 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2000, 2001, 04 Keith M Wesolowski + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/types.h> + +#include <asm/lasat/lasat.h> + +#include <irq.h> + +extern struct pci_ops nile4_pci_ops; +extern struct pci_ops gt64xxx_pci0_ops; +static struct resource lasat_pci_mem_resource = { + .name = "LASAT PCI MEM", + .start = 0x18000000, + .end = 0x19ffffff, + .flags = IORESOURCE_MEM, +}; + +static struct resource lasat_pci_io_resource = { + .name = "LASAT PCI IO", + .start = 0x1a000000, + .end = 0x1bffffff, + .flags = IORESOURCE_IO, +}; + +static struct pci_controller lasat_pci_controller = { + .mem_resource = &lasat_pci_mem_resource, + .io_resource = &lasat_pci_io_resource, +}; + +static int __init lasat_pci_setup(void) +{ + printk(KERN_DEBUG "PCI: starting\n"); + + if (IS_LASAT_200()) + lasat_pci_controller.pci_ops = &nile4_pci_ops; + else + lasat_pci_controller.pci_ops = >64xxx_pci0_ops; + + register_pci_controller(&lasat_pci_controller); + + return 0; +} + +arch_initcall(lasat_pci_setup); + +#define LASAT_IRQ_ETH1 (LASAT_IRQ_BASE + 0) +#define LASAT_IRQ_ETH0 (LASAT_IRQ_BASE + 1) +#define LASAT_IRQ_HDC (LASAT_IRQ_BASE + 2) +#define LASAT_IRQ_COMP (LASAT_IRQ_BASE + 3) +#define LASAT_IRQ_HDLC (LASAT_IRQ_BASE + 4) +#define LASAT_IRQ_PCIA (LASAT_IRQ_BASE + 5) +#define LASAT_IRQ_PCIB (LASAT_IRQ_BASE + 6) +#define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7) +#define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8) + +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + switch (slot) { + case 1: + case 2: + case 3: + return LASAT_IRQ_PCIA + (((slot-1) + (pin-1)) % 4); + case 4: + return LASAT_IRQ_ETH1; /* Ethernet 1 (LAN 2) */ + case 5: + return LASAT_IRQ_ETH0; /* Ethernet 0 (LAN 1) */ + case 6: + return LASAT_IRQ_HDC; /* IDE controller */ + default: + return 0xff; /* Illegal */ + } + + return -1; +} + +/* Do platform specific device initialization at pci_enable_device() time */ +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + return 0; +} |