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 #include <linux/kernel.h>
  14 #include <linux/types.h>
  15 #include <linux/init.h>
  16 #include <linux/pci.h>
  17 #include <linux/io.h>
  18 #include <asm/rts7751r2d.h>
  19 #include "pci-sh4.h"
  20
  21 static u8 rts7751r2d_irq_tab[] __initdata = {
  22         IRQ_PCI_INTA,
  23         IRQ_PCI_INTB,
  24         IRQ_PCI_INTC,
  25         IRQ_PCI_INTD,
  26 };
  27
  28 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
  29 {
  30         return rts7751r2d_irq_tab[slot];
  31 }
  32
  33 static struct resource sh7751_io_resource = {
  34         .name   = "SH7751_IO",
  35         .start  = 0x4000,
  36         .end    = SH7751_PCI_IO_SIZE - 1,
  37         .flags  = IORESOURCE_IO
  38 };
  39
  40 static struct resource sh7751_mem_resource = {
  41         .name   = "SH7751_mem",
  42         .start  = SH7751_PCI_MEMORY_BASE,
  43         .end    = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
  44         .flags  = IORESOURCE_MEM
  45 };
  46
  47 extern struct pci_ops sh7751_pci_ops;
  48
  49 struct pci_channel board_pci_channels[] = {
  50         { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
  51         { NULL, NULL, NULL, 0, 0 },
  52 };
  53 EXPORT_SYMBOL(board_pci_channels);
  54
  55 static struct sh4_pci_address_map sh7751_pci_map = {
  56         .window0        = {
  57                 .base   = SH7751_CS3_BASE_ADDR,
  58                 .size   = 0x04000000,
  59         },
  60
  61         .window1        = {
  62                 .base   = 0x00000000,   /* Unused */
  63                 .size   = 0x00000000,   /* Unused */
  64         },
  65
  66         .flags  = SH4_PCIC_NO_RESET,
  67 };
  68
  69 int __init pcibios_init_platform(void)
  70 {
  71         __set_io_port_base(SH7751_PCI_IO_BASE);
  72         return sh7751_pcic_init(&sh7751_pci_map);
  73 }
  74