arch/sh/drivers/pci/ops-titan.c

   1 /*
   2  * arch/sh/drivers/pci/ops-titan.c
   3  *
   4  * Ported to new API by Paul Mundt <lethal@linux-sh.org>
   5  *
   6  * Modified from ops-snapgear.c written by  David McCullough
   7  * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
   8  *
   9  * May be copied or modified under the terms of the GNU General Public
  10  * License.  See linux/COPYING for more information.
  11  *
  12  * PCI initialization for the Titan boards
  13  */
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/init.h>
  17 #include <linux/pci.h>
  18 #include <linux/io.h>
  19 #include <asm/titan.h>
  20 #include "pci-sh4.h"
  21
  22 static char titan_irq_tab[] __initdata = {
  23         TITAN_IRQ_WAN,
  24         TITAN_IRQ_LAN,
  25         TITAN_IRQ_MPCIA,
  26         TITAN_IRQ_MPCIB,
  27         TITAN_IRQ_USB,
  28 };
  29
  30 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
  31 {
  32         int irq = titan_irq_tab[slot];
  33
  34         printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n",
  35                 slot, pin - 1 + 'A', irq);
  36
  37         return irq;
  38 }
  39
  40 static struct resource sh7751_io_resource = {
  41         .name   = "SH7751_IO",
  42         .start  = SH7751_PCI_IO_BASE,
  43         .end    = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1,
  44         .flags  = IORESOURCE_IO
  45 };
  46
  47 static struct resource sh7751_mem_resource = {
  48         .name   = "SH7751_mem",
  49         .start  = SH7751_PCI_MEMORY_BASE,
  50         .end    = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
  51         .flags  = IORESOURCE_MEM
  52 };
  53
  54 struct pci_channel board_pci_channels[] = {
  55         { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
  56         { NULL, NULL, NULL, 0, 0 },
  57 };
  58 EXPORT_SYMBOL(board_pci_channels);
  59
  60 static struct sh4_pci_address_map sh7751_pci_map = {
  61         .window0        = {
  62                 .base   = SH7751_CS2_BASE_ADDR,
  63                 .size   = SH7751_MEM_REGION_SIZE*2,     /* cs2 and cs3 */
  64         },
  65
  66         .window1        = {
  67                 .base   = SH7751_CS2_BASE_ADDR,
  68                 .size   = SH7751_MEM_REGION_SIZE*2,
  69         },
  70
  71         .flags  = SH4_PCIC_NO_RESET,
  72 };
  73
  74 int __init pcibios_init_platform(void)
  75 {
  76         return sh7751_pcic_init(&sh7751_pci_map);
  77 }