release/src-rt-6.x/linux/linux-2.6/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.h>
  17 #include <asm/io.h>
  18 #include "pci-sh4.h"
  19
  20 static char r7780rp_irq_tab[] __initdata = {
  21         0, 1, 2, 3,
  22 };
  23
  24 static char r7780mp_irq_tab[] __initdata = {
  25         65, 66, 67, 68,
  26 };
  27
  28 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
  29 {
  30         if (mach_is_r7780rp())
  31                 return r7780rp_irq_tab[slot];
  32         if (mach_is_r7780mp() || mach_is_r7785rp())
  33                 return r7780mp_irq_tab[slot];
  34
  35         printk(KERN_ERR "PCI: Bad IRQ mapping "
  36                "request for slot %d, func %d\n", slot, pin-1);
  37
  38         return -1;
  39 }
  40
  41 static struct resource sh7780_io_resource = {
  42         .name   = "SH7780_IO",
  43         .start  = 0x2000,
  44         .end    = 0x2000 + SH7780_PCI_IO_SIZE - 1,
  45         .flags  = IORESOURCE_IO
  46 };
  47
  48 static struct resource sh7780_mem_resource = {
  49         .name   = "SH7780_mem",
  50         .start  = SH7780_PCI_MEMORY_BASE,
  51         .end    = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
  52         .flags  = IORESOURCE_MEM
  53 };
  54
  55 extern struct pci_ops sh7780_pci_ops;
  56
  57 struct pci_channel board_pci_channels[] = {
  58         { &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
  59         { NULL, NULL, NULL, 0, 0 },
  60 };
  61 EXPORT_SYMBOL(board_pci_channels);
  62
  63 static struct sh4_pci_address_map sh7780_pci_map = {
  64         .window0        = {
  65                 .base   = SH7780_CS2_BASE_ADDR,
  66                 .size   = 0x04000000,
  67         },
  68
  69         .window1        = {
  70                 .base   = SH7780_CS3_BASE_ADDR,
  71                 .size   = 0x04000000,
  72         },
  73
  74         .flags  = SH4_PCIC_NO_RESET,
  75 };
  76
  77 int __init pcibios_init_platform(void)
  78 {
  79         return sh7780_pcic_init(&sh7780_pci_map);
  80 }