11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * arch/sh/drivers/pci/fixups-rts7751r2d.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * RTS7751R2D PCI fixups 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (C) 2003 Lineo uSolutions, Inc. 71da177e4SLinus Torvalds * Copyright (C) 2004 Paul Mundt 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * This file is subject to the terms and conditions of the GNU General Public 101da177e4SLinus Torvalds * License. See the file "COPYING" in the main directory of this archive 111da177e4SLinus Torvalds * for more details. 121da177e4SLinus Torvalds */ 13*b8b47bfbSMagnus Damm #include <linux/pci.h> 14959f85f8SPaul Mundt #include "pci-sh4.h" 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #define PCIMCR_MRSET_OFF 0xBFFFFFFF 171da177e4SLinus Torvalds #define PCIMCR_RFSH_OFF 0xFFFFFFFB 181da177e4SLinus Torvalds 19*b8b47bfbSMagnus Damm int pci_fixup_pcic(struct pci_channel *chan) 201da177e4SLinus Torvalds { 211da177e4SLinus Torvalds unsigned long bcr1, mcr; 221da177e4SLinus Torvalds 23e036eaa6SMagnus Damm bcr1 = ctrl_inl(SH7751_BCR1); 241da177e4SLinus Torvalds bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ 25*b8b47bfbSMagnus Damm pci_write_reg(chan, bcr1, SH4_PCIBCR1); 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds /* Enable all interrupts, so we known what to fix */ 28*b8b47bfbSMagnus Damm pci_write_reg(chan, 0x0000c3ff, SH4_PCIINTM); 29*b8b47bfbSMagnus Damm pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM); 301da177e4SLinus Torvalds 31*b8b47bfbSMagnus Damm pci_write_reg(chan, 0xfb900047, SH7751_PCICONF1); 32*b8b47bfbSMagnus Damm pci_write_reg(chan, 0xab000001, SH7751_PCICONF4); 331da177e4SLinus Torvalds 34e036eaa6SMagnus Damm mcr = ctrl_inl(SH7751_MCR); 351da177e4SLinus Torvalds mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; 36*b8b47bfbSMagnus Damm pci_write_reg(chan, mcr, SH4_PCIMCR); 371da177e4SLinus Torvalds 38*b8b47bfbSMagnus Damm pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5); 39*b8b47bfbSMagnus Damm pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6); 40*b8b47bfbSMagnus Damm pci_write_reg(chan, 0x0c000000, SH4_PCILAR0); 41*b8b47bfbSMagnus Damm pci_write_reg(chan, 0x00000000, SH4_PCILAR1); 42959f85f8SPaul Mundt 431da177e4SLinus Torvalds return 0; 441da177e4SLinus Torvalds } 45