1 /*
2 * arch/sh/drivers/pci/fixups-lboxre2.c
3 *
4 * L-BOX RE2 PCI fixups
5 *
6 * Copyright (C) 2007 Nobuhiro Iwamatsu
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12 #include "pci-sh4.h"
13
14 #define PCIMCR_MRSET_OFF 0xBFFFFFFF
15 #define PCIMCR_RFSH_OFF 0xFFFFFFFB
16
pci_fixup_pcic(void)17 int pci_fixup_pcic(void)
18 {
19 unsigned long bcr1, mcr;
20
21 bcr1 = ctrl_inl(SH7751_BCR1);
22 bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */
23 pci_write_reg(bcr1, SH4_PCIBCR1);
24
25 /* Enable all interrupts, so we known what to fix */
26 pci_write_reg(0x0000c3ff, SH4_PCIINTM);
27 pci_write_reg(0x0000380f, SH4_PCIAINTM);
28 pci_write_reg(0xfb900047, SH7751_PCICONF1);
29 pci_write_reg(0xab000001, SH7751_PCICONF4);
30
31 mcr = ctrl_inl(SH7751_MCR);
32 mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
33 pci_write_reg(mcr, SH4_PCIMCR);
34
35 pci_write_reg(0x0c000000, SH7751_PCICONF5);
36 pci_write_reg(0xd0000000, SH7751_PCICONF6);
37 pci_write_reg(0x0c000000, SH4_PCILAR0);
38 pci_write_reg(0x00000000, SH4_PCILAR1);
39
40 return 0;
41 }
42