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