-/*
- * $Id$
- *
- * ADM5120 specific PCI fixups
- *
- * Copyright (C) ADMtek Incorporated.
- * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
- * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
- * Copyright (C) 2007 OpenWrt.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/pci_ids.h>
-#include <linux/pci_regs.h>
-
-#include <asm/delay.h>
-#include <asm/bootinfo.h>
-
-#include <asm/mach-adm5120/adm5120_info.h>
-#include <asm/mach-adm5120/adm5120_defs.h>
-#include <asm/mach-adm5120/adm5120_irq.h>
-
-struct adm5120_pci_irq {
- u8 slot;
- u8 func;
- u8 pin;
- unsigned irq;
-};
-
-#define PCIIRQ(s,f,p,i) { \
- .slot = (s), \
- .func = (f), \
- .pin = (p), \
- .irq = (i) \
- }
-
-static struct adm5120_pci_irq default_pci_irqs[] __initdata = {
- PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
-};
-
-static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
- PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
- PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
- PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
-};
-
-static struct adm5120_pci_irq cas771_pci_irqs[] __initdata = {
- PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
- PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI1),
- PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2)
-};
-
-static struct adm5120_pci_irq np28g_pci_irqs[] __initdata = {
- PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
- PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI0),
- PCIIRQ(3, 1, 2, ADM5120_IRQ_PCI1),
- PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2)
-};
-
-#define GETMAP(n) do { \
- nr_irqs = ARRAY_SIZE(n ## _pci_irqs); \
- p = n ## _pci_irqs; \
- } while (0)
-
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- struct adm5120_pci_irq *p;
- int nr_irqs;
- int i;
- int irq;
-
- irq = -1;
- if (slot < 1 || slot > 3) {
- printk(KERN_ALERT "PCI: slot number %u is not supported\n",
- slot);
- goto out;
- }
-
- GETMAP(default);
-
- switch (mips_machtype) {
- case MACH_ADM5120_RB_111:
- case MACH_ADM5120_RB_112:
- case MACH_ADM5120_RB_133:
- case MACH_ADM5120_RB_133C:
- case MACH_ADM5120_RB_153:
- GETMAP(rb1xx);
- break;
- case MACH_ADM5120_NP28G:
- GETMAP(np28g);
- break;
- case MACH_ADM5120_P335:
- case MACH_ADM5120_P334WT:
- /* using default mapping */
- break;
- case MACH_ADM5120_CAS771:
- GETMAP(cas771);
- break;
-
- case MACH_ADM5120_NP27G:
- case MACH_ADM5120_NP28GHS:
- case MACH_ADM5120_WP54AG:
- case MACH_ADM5120_WP54G:
- case MACH_ADM5120_WP54G_WRT:
- case MACH_ADM5120_WPP54AG:
- case MACH_ADM5120_WPP54G:
- default:
- printk(KERN_ALERT "PCI: irq map is unknown, using defaults.\n");
- break;
- }
-
- for (i=0; i<nr_irqs; i++, p++) {
- if ((p->slot == slot) && (PCI_FUNC(dev->devfn) == p->func) &&
- (p->pin == pin)) {
- irq = p->irq;
- break;
- }
- }
-
- if (irq < 0) {
- printk(KERN_ALERT "PCI: no irq found for %s pin:%u\n",
- pci_name(dev), pin);
- } else {
- printk(KERN_INFO "PCI: mapping irq for %s pin:%u, irq:%d\n",
- pci_name(dev), pin, irq);
- }
-
-out:
- return irq;
-}
-
-static void adm5120_pci_fixup(struct pci_dev *dev)
-{
- if (dev->devfn != 0)
- return;
-
- /* setup COMMAND register */
- pci_write_config_word(dev, PCI_COMMAND,
- (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
-
- /* setup CACHE_LINE_SIZE register */
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
-
- /* setting up BARS */
- pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0);
- pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0);
-}
-
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120,
- adm5120_pci_fixup);
-
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- return 0;
-}
-