arch/sh/drivers/pci/ops-rts7751r2d.c

   1 /*
   2  * linux/arch/sh/drivers/pci/ops-rts7751r2d.c
   3  *
   4  * Author:  Ian DaSilva (idasilva@mvista.com)
   5  *
   6  * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
   7  *
   8  * May be copied or modified under the terms of the GNU General Public
   9  * License.  See linux/COPYING for more information.
  10  *
  11  * PCI initialization for the Renesas SH7751R RTS7751R2D board
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/init.h>
  17 #include <linux/delay.h>
  18 #include <linux/pci.h>
  19 #include <linux/module.h>
  20 #include <asm/rts7751r2d/rts7751r2d.h>
  21 #include <asm/io.h>
  22 #include "pci-sh4.h"
  23
  24 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
  25 {
  26         switch (slot) {
  27         case 0: return IRQ_PCISLOT1;    /* PCI Extend slot #1 */
  28         case 1: return IRQ_PCISLOT2;    /* PCI Extend slot #2 */
  29         case 2: return IRQ_PCMCIA;      /* PCI Cardbus Bridge */
  30         case 3: return IRQ_PCIETH;      /* Realtek Ethernet controller */
  31         default:
  32                 printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
  33                 return -1;
  34         }
  35 }
  36
  37 static struct resource sh7751_io_resource = {
  38         .name   = "SH7751_IO",
  39         .start  = 0x4000,
  40         .end    = 0x4000 + SH7751_PCI_IO_SIZE - 1,
  41         .flags  = IORESOURCE_IO
  42 };
  43
  44 static struct resource sh7751_mem_resource = {
  45         .name   = "SH7751_mem",
  46         .start  = SH7751_PCI_MEMORY_BASE,
  47         .end    = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
  48         .flags  = IORESOURCE_MEM
  49 };
  50
  51 extern struct pci_ops sh7751_pci_ops;
  52
  53 struct pci_channel board_pci_channels[] = {
  54         { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
  55         { NULL, NULL, NULL, 0, 0 },
  56 };
  57 EXPORT_SYMBOL(board_pci_channels);
  58
  59 static struct sh4_pci_address_map sh7751_pci_map = {
  60         .window0        = {
  61                 .base   = SH7751_CS3_BASE_ADDR,
  62                 .size   = 0x04000000,
  63         },
  64
  65         .window1        = {
  66                 .base   = 0x00000000,   /* Unused */
  67                 .size   = 0x00000000,   /* Unused */
  68         },
  69
  70         .flags  = SH4_PCIC_NO_RESET,
  71 };
  72
  73 int __init pcibios_init_platform(void)
  74 {
  75         return sh7751_pcic_init(&sh7751_pci_map);
  76 }
  77