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

   1 /*
   2  * arch/sh/drivers/pci/fixups-rts7751r2d.c
   3  *
   4  * RTS7751R2D PCI fixups
   5  *
   6  * Copyright (C) 2003  Lineo uSolutions, Inc.
   7  * Copyright (C) 2004  Paul Mundt
   8  *
   9  * This file is subject to the terms and conditions of the GNU General Public
  10  * License.  See the file "COPYING" in the main directory of this archive
  11  * for more details.
  12  */
  13 #include "pci-sh7751.h"
  14 #include <asm/io.h>
  15
  16 #define PCIMCR_MRSET_OFF        0xBFFFFFFF
  17 #define PCIMCR_RFSH_OFF         0xFFFFFFFB
  18
  19 int pci_fixup_pcic(void)
  20 {
  21         unsigned long bcr1, mcr;
  22
  23         bcr1 = inl(SH7751_BCR1);
  24         bcr1 |= 0x40080000;     /* Enable Bit 19 BREQEN, set PCIC to slave */
  25         outl(bcr1, PCI_REG(SH7751_PCIBCR1));
  26
  27         /* Enable all interrupts, so we known what to fix */
  28         outl(0x0000c3ff, PCI_REG(SH7751_PCIINTM));
  29         outl(0x0000380f, PCI_REG(SH7751_PCIAINTM));
  30
  31         outl(0xfb900047, PCI_REG(SH7751_PCICONF1));
  32         outl(0xab000001, PCI_REG(SH7751_PCICONF4));
  33
  34         mcr = inl(SH7751_MCR);
  35         mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
  36         outl(mcr, PCI_REG(SH7751_PCIMCR));
  37
  38         outl(0x0c000000, PCI_REG(SH7751_PCICONF5));
  39         outl(0xd0000000, PCI_REG(SH7751_PCICONF6));
  40         outl(0x0c000000, PCI_REG(SH7751_PCILAR0));
  41         outl(0x00000000, PCI_REG(SH7751_PCILAR1));
  42         return 0;
  43 }