2 * arch/sh/drivers/pci/fixups-rts7751r2d.c
4 * RTS7751R2D PCI fixups
6 * Copyright (C) 2003 Lineo uSolutions, Inc.
7 * Copyright (C) 2004 Paul Mundt
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
13 #include <linux/pci.h>
16 #define PCIMCR_MRSET_OFF 0xBFFFFFFF
17 #define PCIMCR_RFSH_OFF 0xFFFFFFFB
19 int pci_fixup_pcic(struct pci_channel *chan)
21 unsigned long bcr1, mcr;
23 bcr1 = ctrl_inl(SH7751_BCR1);
24 bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */
25 pci_write_reg(chan, bcr1, SH4_PCIBCR1);
27 /* Enable all interrupts, so we known what to fix */
28 pci_write_reg(chan, 0x0000c3ff, SH4_PCIINTM);
29 pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM);
31 pci_write_reg(chan, 0xfb900047, SH7751_PCICONF1);
32 pci_write_reg(chan, 0xab000001, SH7751_PCICONF4);
34 mcr = ctrl_inl(SH7751_MCR);
35 mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
36 pci_write_reg(chan, mcr, SH4_PCIMCR);
38 pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5);
39 pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6);
40 pci_write_reg(chan, 0x0c000000, SH4_PCILAR0);
41 pci_write_reg(chan, 0x00000000, SH4_PCILAR1);