Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6] / 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-sh4.h"
14
15 #define PCIMCR_MRSET_OFF        0xBFFFFFFF
16 #define PCIMCR_RFSH_OFF         0xFFFFFFFB
17
18 int pci_fixup_pcic(void)
19 {
20         unsigned long bcr1, mcr;
21
22         bcr1 = inl(SH7751_BCR1);
23         bcr1 |= 0x40080000;     /* Enable Bit 19 BREQEN, set PCIC to slave */
24         pci_write_reg(bcr1, SH4_PCIBCR1);
25
26         /* Enable all interrupts, so we known what to fix */
27         pci_write_reg(0x0000c3ff, SH4_PCIINTM);
28         pci_write_reg(0x0000380f, SH4_PCIAINTM);
29
30         pci_write_reg(0xfb900047, SH7751_PCICONF1);
31         pci_write_reg(0xab000001, SH7751_PCICONF4);
32
33         mcr = inl(SH7751_MCR);
34         mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
35         pci_write_reg(mcr, SH4_PCIMCR);
36
37         pci_write_reg(0x0c000000, SH7751_PCICONF5);
38         pci_write_reg(0xd0000000, SH7751_PCICONF6);
39         pci_write_reg(0x0c000000, SH4_PCILAR0);
40         pci_write_reg(0x00000000, SH4_PCILAR1);
41
42         return 0;
43 }