Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 13 | #include <linux/pci.h> |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame] | 14 | #include "pci-sh4.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | |
| 16 | #define PCIMCR_MRSET_OFF 0xBFFFFFFF |
| 17 | #define PCIMCR_RFSH_OFF 0xFFFFFFFB |
| 18 | |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 19 | int pci_fixup_pcic(struct pci_channel *chan) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | { |
| 21 | unsigned long bcr1, mcr; |
| 22 | |
Magnus Damm | e036eaa | 2008-02-14 13:52:43 +0900 | [diff] [blame] | 23 | bcr1 = ctrl_inl(SH7751_BCR1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 25 | pci_write_reg(chan, bcr1, SH4_PCIBCR1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
| 27 | /* Enable all interrupts, so we known what to fix */ |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 28 | pci_write_reg(chan, 0x0000c3ff, SH4_PCIINTM); |
| 29 | pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 31 | pci_write_reg(chan, 0xfb900047, SH7751_PCICONF1); |
| 32 | pci_write_reg(chan, 0xab000001, SH7751_PCICONF4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
Magnus Damm | e036eaa | 2008-02-14 13:52:43 +0900 | [diff] [blame] | 34 | mcr = ctrl_inl(SH7751_MCR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 36 | pci_write_reg(chan, mcr, SH4_PCIMCR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
Magnus Damm | b8b47bf | 2009-03-11 15:41:51 +0900 | [diff] [blame^] | 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); |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame] | 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | return 0; |
| 44 | } |