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

   1 /*
   2  * linux/arch/sh/kernel/pci-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/config.h>
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/init.h>
  18 #include <linux/delay.h>
  19 #include <linux/pci.h>
  20 #include <linux/module.h>
  21
  22 #include <asm/io.h>
  23 #include "pci-sh7751.h"
  24 #include <asm/rts7751r2d/rts7751r2d.h>
  25
  26 int __init pcibios_map_platform_irq(u8 slot, u8 pin)
  27 {
  28         switch (slot) {
  29         case 0: return IRQ_PCISLOT1;    /* PCI Extend slot #1 */
  30         case 1: return IRQ_PCISLOT2;    /* PCI Extend slot #2 */
  31         case 2: return IRQ_PCMCIA;      /* PCI Cardbus Bridge */
  32         case 3: return IRQ_PCIETH;      /* Realtek Ethernet controller */
  33         default:
  34                 printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
  35                 return -1;
  36         }
  37 }
  38
  39 static struct resource sh7751_io_resource = {
  40         .name   = "SH7751_IO",
  41         .start  = 0x4000,
  42         .end    = 0x4000 + SH7751_PCI_IO_SIZE - 1,
  43         .flags  = IORESOURCE_IO
  44 };
  45
  46 static struct resource sh7751_mem_resource = {
  47         .name   = "SH7751_mem",
  48         .start  = SH7751_PCI_MEMORY_BASE,
  49         .end    = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
  50         .flags  = IORESOURCE_MEM
  51 };
  52
  53 extern struct pci_ops sh7751_pci_ops;
  54
  55 struct pci_channel board_pci_channels[] = {
  56         { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
  57         { NULL, NULL, NULL, 0, 0 },
  58 };
  59 EXPORT_SYMBOL(board_pci_channels);
  60
  61 static struct sh7751_pci_address_map sh7751_pci_map = {
  62         .window0        = {
  63                 .base   = SH7751_CS3_BASE_ADDR,
  64                 .size   = 0x04000000,
  65         },
  66
  67         .window1        = {
  68                 .base   = 0x00000000,   /* Unused */
  69                 .size   = 0x00000000,   /* Unused */
  70         },
  71
  72         .flags  = SH7751_PCIC_NO_RESET,
  73 };
  74
  75 int __init pcibios_init_platform(void)
  76 {
  77         return sh7751_pcic_init(&sh7751_pci_map);
  78 }
  79