diff options
Diffstat (limited to 'arch/mips/pci/pci-yosemite.c')
-rw-r--r-- | arch/mips/pci/pci-yosemite.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/mips/pci/pci-yosemite.c b/arch/mips/pci/pci-yosemite.c new file mode 100644 index 00000000000..dac9ed4b0cc --- /dev/null +++ b/arch/mips/pci/pci-yosemite.c @@ -0,0 +1,60 @@ +/* + * 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) 2004 by Ralf Baechle (ralf@linux-mips.org) + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <asm/titan_dep.h> + +extern struct pci_ops titan_pci_ops; + +static struct resource py_mem_resource = { + "Titan PCI MEM", 0xe0000000UL, 0xe3ffffffUL, IORESOURCE_MEM +}; + +/* + * PMON really reserves 16MB of I/O port space but that's stupid, nothing + * needs that much since allocations are limited to 256 bytes per device + * anyway. So we just claim 64kB here. + */ +#define TITAN_IO_SIZE 0x0000ffffUL +#define TITAN_IO_BASE 0xe8000000UL + +static struct resource py_io_resource = { + "Titan IO MEM", 0x00001000UL, TITAN_IO_SIZE - 1, IORESOURCE_IO, +}; + +static struct pci_controller py_controller = { + .pci_ops = &titan_pci_ops, + .mem_resource = &py_mem_resource, + .mem_offset = 0x00000000UL, + .io_resource = &py_io_resource, + .io_offset = 0x00000000UL +}; + +static char ioremap_failed[] __initdata = "Could not ioremap I/O port range"; + +static int __init pmc_yosemite_setup(void) +{ + unsigned long io_v_base; + + io_v_base = (unsigned long) ioremap(TITAN_IO_BASE, TITAN_IO_SIZE); + if (!io_v_base) + panic(ioremap_failed); + + set_io_port_base(io_v_base); + TITAN_WRITE(RM9000x2_OCD_LKM7, TITAN_READ(RM9000x2_OCD_LKM7) | 1); + + ioport_resource.end = TITAN_IO_SIZE - 1; + + register_pci_controller(&py_controller); + + return 0; +} + +arch_initcall(pmc_yosemite_setup); |