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-sh7751.h" 14 #include <asm/io.h> 15 16 #define PCIMCR_MRSET_OFF 0xBFFFFFFF 17 #define PCIMCR_RFSH_OFF 0xFFFFFFFB 18 19 int pci_fixup_pcic(void) 20 { 21 unsigned long bcr1, mcr; 22 23 bcr1 = inl(SH7751_BCR1); 24 bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ 25 outl(bcr1, PCI_REG(SH7751_PCIBCR1)); 26 27 /* Enable all interrupts, so we known what to fix */ 28 outl(0x0000c3ff, PCI_REG(SH7751_PCIINTM)); 29 outl(0x0000380f, PCI_REG(SH7751_PCIAINTM)); 30 31 outl(0xfb900047, PCI_REG(SH7751_PCICONF1)); 32 outl(0xab000001, PCI_REG(SH7751_PCICONF4)); 33 34 mcr = inl(SH7751_MCR); 35 mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; 36 outl(mcr, PCI_REG(SH7751_PCIMCR)); 37 38 outl(0x0c000000, PCI_REG(SH7751_PCICONF5)); 39 outl(0xd0000000, PCI_REG(SH7751_PCICONF6)); 40 outl(0x0c000000, PCI_REG(SH7751_PCILAR0)); 41 outl(0x00000000, PCI_REG(SH7751_PCILAR1)); 42 return 0; 43 } 44