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
17int pci_fixup_pcic(void)
18{
19	unsigned long bcr1, mcr;
20
21	bcr1 = 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 = 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