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-sh4.h" 14 15 #define PCIMCR_MRSET_OFF 0xBFFFFFFF 16 #define PCIMCR_RFSH_OFF 0xFFFFFFFB 17 18 int pci_fixup_pcic(void) 19 { 20 unsigned long bcr1, mcr; 21 22 bcr1 = inl(SH7751_BCR1); 23 bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ 24 pci_write_reg(bcr1, SH4_PCIBCR1); 25 26 /* Enable all interrupts, so we known what to fix */ 27 pci_write_reg(0x0000c3ff, SH4_PCIINTM); 28 pci_write_reg(0x0000380f, SH4_PCIAINTM); 29 30 pci_write_reg(0xfb900047, SH7751_PCICONF1); 31 pci_write_reg(0xab000001, SH7751_PCICONF4); 32 33 mcr = inl(SH7751_MCR); 34 mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; 35 pci_write_reg(mcr, SH4_PCIMCR); 36 37 pci_write_reg(0x0c000000, SH7751_PCICONF5); 38 pci_write_reg(0xd0000000, SH7751_PCICONF6); 39 pci_write_reg(0x0c000000, SH4_PCILAR0); 40 pci_write_reg(0x00000000, SH4_PCILAR1); 41 42 return 0; 43 } 44