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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
19int 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}