arch/sh/drivers/pci/ops-r7780rp.c

   1 /*
   2  * Author:  Ian DaSilva (idasilva@mvista.com)
   3  *
   4  * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
   5  *
   6  * May be copied or modified under the terms of the GNU General Public
   7  * License.  See linux/COPYING for more information.
   8  *
   9  * PCI initialization for the Renesas SH7780 Highlander R7780RP-1 board
  10  */
  11 #include <linux/kernel.h>
  12 #include <linux/types.h>
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/pci.h>
  16 #include <asm/r7780rp/r7780rp.h>
  17 #include <asm/io.h>
  18 #include "pci-sh4.h"
  19
  20 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
  21 {
  22         switch (slot) {
  23         case 0: return IRQ_PCISLOT1;            /* PCI Interrupt #1 */
  24         case 1: return IRQ_PCISLOT2;            /* PCI Interrupt #2 */
  25         case 2: return IRQ_PCISLOT3;            /* PCI Interrupt #3 */
  26         case 3: return IRQ_PCISLOT4;            /* PCI Interrupt E4 */
  27         default:
  28                 printk(KERN_ERR "PCI: Bad IRQ mapping "
  29                        "request for slot %d, func %d\n", slot, pin-1);
  30                 return -1;
  31         }
  32 }
  33
  34 static struct resource sh7780_io_resource = {
  35         .name   = "SH7780_IO",
  36         .start  = 0x2000,
  37         .end    = 0x2000 + SH7780_PCI_IO_SIZE - 1,
  38         .flags  = IORESOURCE_IO
  39 };
  40
  41 static struct resource sh7780_mem_resource = {
  42         .name   = "SH7780_mem",
  43         .start  = SH7780_PCI_MEMORY_BASE,
  44         .end    = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
  45         .flags  = IORESOURCE_MEM
  46 };
  47
  48 extern struct pci_ops sh7780_pci_ops;
  49
  50 struct pci_channel board_pci_channels[] = {
  51         { &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
  52         { NULL, NULL, NULL, 0, 0 },
  53 };
  54 EXPORT_SYMBOL(board_pci_channels);
  55
  56 static struct sh4_pci_address_map sh7780_pci_map = {
  57         .window0        = {
  58                 .base   = SH7780_CS2_BASE_ADDR,
  59                 .size   = 0x04000000,
  60         },
  61
  62         .window1        = {
  63                 .base   = SH7780_CS3_BASE_ADDR,
  64                 .size   = 0x04000000,
  65         },
  66
  67         .flags  = SH4_PCIC_NO_RESET,
  68 };
  69
  70 int __init pcibios_init_platform(void)
  71 {
  72         return sh7780_pcic_init(&sh7780_pci_map);
  73 }