target/linux/easygate-2.6/files/arch/mips/pci/fixup-bcm96348.c

   1 /*
   2 <:copyright-gpl
   3  Copyright 2002 Broadcom Corp. All Rights Reserved.
   4
   5  This program is free software; you can distribute it and/or modify it
   6  under the terms of the GNU General Public License (Version 2) as
   7  published by the Free Software Foundation.
   8
   9  This program is distributed in the hope it will be useful, but WITHOUT
  10  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  for more details.
  13
  14  You should have received a copy of the GNU General Public License along
  15  with this program; if not, write to the Free Software Foundation, Inc.,
  16  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  17 :>
  18 */
  19 #include <linux/init.h>
  20 #include <linux/types.h>
  21 #include <linux/pci.h>
  22
  23 #include <bcmpci.h>
  24 #include <bcm_intr.h>
  25 #include <bcm_map_part.h>
  26 #include <6348_intr.h>
  27 #include <6348_map_part.h>
  28
  29 static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE);
  30
  31 static char irq_tab_bcm96348[] __initdata = {
  32     [0] = INTERRUPT_ID_MPI,
  33     [1] = INTERRUPT_ID_MPI,
  34 #if defined(CONFIG_USB)
  35     [USB_HOST_SLOT] = INTERRUPT_ID_USBH
  36 #endif
  37 };
  38
  39 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  40 {
  41     return irq_tab_bcm96348[slot];
  42 }
  43
  44 static void bcm96348_fixup(struct pci_dev *dev)
  45 {
  46     uint32 memaddr;
  47     uint32 size;
  48
  49     memaddr = pci_resource_start(dev, 0);
  50     size = pci_resource_len(dev, 0);
  51
  52     switch (PCI_SLOT(dev->devfn)) {
  53         case 0:
  54             // UBUS to PCI address range
  55             // Memory Window 1. Mask determines which bits are decoded.
  56             mpi->l2pmrange1 = ~(size-1);
  57             // UBUS to PCI Memory base address. This is akin to the ChipSelect base
  58             // register.
  59             mpi->l2pmbase1 = memaddr & BCM_PCI_ADDR_MASK;
  60             // UBUS to PCI Remap Address. Replaces the masked address bits in the
  61             // range register with this setting.
  62             // Also, enable direct I/O and direct Memory accesses
  63             mpi->l2pmremap1 = (memaddr | MEM_WINDOW_EN);
  64             break;
  65
  66         case 1:
  67             // Memory Window 2
  68             mpi->l2pmrange2 = ~(size-1);
  69             // UBUS to PCI Memory base address.
  70             mpi->l2pmbase2 = memaddr & BCM_PCI_ADDR_MASK;
  71             // UBUS to PCI Remap Address
  72             mpi->l2pmremap2 = (memaddr | MEM_WINDOW_EN);
  73             break;
  74
  75 #if defined(CONFIG_USB)
  76         case USB_HOST_SLOT:
  77             dev->resource[0].start = USB_HOST_BASE;
  78             dev->resource[0].end = USB_HOST_BASE+USB_BAR0_MEM_SIZE-1;
  79             break;
  80 #endif
  81     }
  82 }
  83
  84 int pcibios_plat_dev_init(struct pci_dev *dev)
  85 {
  86         return 0;
  87 }
  88
  89 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, PCI_ANY_ID,
  90           bcm96348_fixup);
  91
  92 /*struct pci_fixup pcibios_fixups[] = {
  93     { PCI_FIXUP_FINAL, PCI_ANY_ID, PCI_ANY_ID, bcm96348_fixup },
  94     {0}
  95 };*/