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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/pci/pci-ocelot-g.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/pci/pci-ocelot-g.c')
-rw-r--r-- | arch/mips/pci/pci-ocelot-g.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/arch/mips/pci/pci-ocelot-g.c b/arch/mips/pci/pci-ocelot-g.c new file mode 100644 index 0000000..1e34301 --- /dev/null +++ b/arch/mips/pci/pci-ocelot-g.c @@ -0,0 +1,97 @@ +/* + * 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) + * + * This doesn't really fly - but I don't have a GT64240 system for testing. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <asm/gt64240.h> + +/* + * We assume these address ranges have been programmed into the GT-64240 by + * the firmware. PMON in case of the Ocelot G does that. Note the size of + * the I/O range is completly stupid; I/O mappings are limited to at most + * 256 bytes by the PCI spec and deprecated; and just to make things worse + * apparently many devices don't decode more than 64k of I/O space. + */ + +#define gt_io_size 0x20000000UL +#define gt_io_base 0xe0000000UL + +static struct resource gt_pci_mem0_resource = { + .name = "MV64240 PCI0 MEM", + .start = 0xc0000000UL, + .end = 0xcfffffffUL, + .flags = IORESOURCE_MEM +}; + +static struct resource gt_pci_io_mem0_resource = { + .name = "MV64240 PCI0 IO MEM", + .start = 0xe0000000UL, + .end = 0xefffffffUL, + .flags = IORESOURCE_IO +}; + +static struct mv_pci_controller gt_bus0_controller = { + .pcic = { + .pci_ops = &mv_pci_ops, + .mem_resource = >_pci_mem0_resource, + .mem_offset = 0xc0000000UL, + .io_resource = >_pci_io_mem0_resource, + .io_offset = 0x00000000UL + }, + .config_addr = PCI_0CONFIGURATION_ADDRESS, + .config_vreg = PCI_0CONFIGURATION_DATA_VIRTUAL_REGISTER, +}; + +static struct resource gt_pci_mem1_resource = { + .name = "MV64240 PCI1 MEM", + .start = 0xd0000000UL, + .end = 0xdfffffffUL, + .flags = IORESOURCE_MEM +}; + +static struct resource gt_pci_io_mem1_resource = { + .name = "MV64240 PCI1 IO MEM", + .start = 0xf0000000UL, + .end = 0xffffffffUL, + .flags = IORESOURCE_IO +}; + +static struct mv_pci_controller gt_bus1_controller = { + .pcic = { + .pci_ops = &mv_pci_ops, + .mem_resource = >_pci_mem1_resource, + .mem_offset = 0xd0000000UL, + .io_resource = >_pci_io_mem1_resource, + .io_offset = 0x10000000UL + }, + .config_addr = PCI_1CONFIGURATION_ADDRESS, + .config_vreg = PCI_1CONFIGURATION_DATA_VIRTUAL_REGISTER, +}; + +static __init int __init ocelot_g_pci_init(void) +{ + unsigned long io_v_base; + + if (gt_io_size) { + io_v_base = (unsigned long) ioremap(gt_io_base, gt_io_size); + if (!io_v_base) + panic("Could not ioremap I/O port range"); + + set_io_port_base(io_v_base); + } + + register_pci_controller(>_bus0_controller.pcic); + register_pci_controller(>_bus1_controller.pcic); + + return 0; +} + +arch_initcall(ocelot_g_pci_init); |