1 /* 1 /*
2 * Copyright 2001 MontaVista Software Inc. 2 * Copyright 2001 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc. 3 * Author: MontaVista Software, Inc.
4 * stevel@mvista.com or source@mv 4 * stevel@mvista.com or source@mvista.com
5 * 5 *
6 * This program is free software; you can red 6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Publ 7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version. 9 * option) any later version.
10 * 10 *
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' A 11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, BUT NOT LIMITED 12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS FOR A PARTICUL 13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
14 * NO EVENT SHALL THE AUTHOR BE LIABL 14 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQU 15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITU 16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
17 * USE, DATA, OR PROFITS; OR BUSINESS INTER 17 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 * ANY THEORY OF LIABILITY, WHETHER IN CONTR 18 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISIN 19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSS 20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 * 21 *
22 * You should have received a copy of the GN 22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the F 23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 675 Mass Ave, Cambridge, MA 02139, USA. 24 * 675 Mass Ave, Cambridge, MA 02139, USA.
25 */ 25 */
26 26
27 #include <linux/types.h> 27 #include <linux/types.h>
28 #include <linux/pci.h> 28 #include <linux/pci.h>
29 #include <linux/kernel.h> 29 #include <linux/kernel.h>
30 30
31 #include <asm/mach-rc32434/rc32434.h> 31 #include <asm/mach-rc32434/rc32434.h>
32 #include <asm/mach-rc32434/irq.h> 32 #include <asm/mach-rc32434/irq.h>
33 33
34 static int irq_map[2][12] = { 34 static int irq_map[2][12] = {
35 {0, 0, 2, 3, 2, 3, 0, 0, 0, 0, 0, 1}, 35 {0, 0, 2, 3, 2, 3, 0, 0, 0, 0, 0, 1},
36 {0, 0, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3} 36 {0, 0, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3}
37 }; 37 };
38 38
39 int pcibios_map_irq(const struct pci_dev *dev, 39 int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
40 { 40 {
41 int irq = 0; 41 int irq = 0;
42 42
43 if (dev->bus->number < 2 && PCI_SLOT(d 43 if (dev->bus->number < 2 && PCI_SLOT(dev->devfn) < 12)
44 irq = irq_map[dev->bus->number 44 irq = irq_map[dev->bus->number][PCI_SLOT(dev->devfn)];
45 45
46 return irq + GROUP4_IRQ_BASE + 4; 46 return irq + GROUP4_IRQ_BASE + 4;
47 } 47 }
48 48
49 static void rc32434_pci_early_fixup(struct pci 49 static void rc32434_pci_early_fixup(struct pci_dev *dev)
50 { 50 {
51 if (PCI_SLOT(dev->devfn) == 6 && dev-> 51 if (PCI_SLOT(dev->devfn) == 6 && dev->bus->number == 0) {
52 /* disable prefetched memory r 52 /* disable prefetched memory range */
53 pci_write_config_word(dev, PCI 53 pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0);
54 pci_write_config_word(dev, PCI 54 pci_write_config_word(dev, PCI_PREF_MEMORY_BASE, 0x10);
55 55
56 pci_write_config_byte(dev, PCI 56 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
57 } 57 }
58 } 58 }
59 59
60 /* 60 /*
61 * The fixup applies to both the IDT and VIA d 61 * The fixup applies to both the IDT and VIA devices present on the board
62 */ 62 */
63 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_I 63 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, rc32434_pci_early_fixup);
64 64
65 /* Do platform specific device initialization 65 /* Do platform specific device initialization at pci_enable_device() time */
66 int pcibios_plat_dev_init(struct pci_dev *dev) 66 int pcibios_plat_dev_init(struct pci_dev *dev)
67 { 67 {
68 return 0; 68 return 0;
69 } 69 }
70 70
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