patch-2.4.10 linux/arch/mips/ite-boards/ivr/pci_fixup.c

• Lines: 140
• Date: Sun Sep 9 10:43:01 2001
• Orig file: v2.4.9/linux/arch/mips/ite-boards/ivr/pci_fixup.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.9/linux/arch/mips/ite-boards/ivr/pci_fixup.c linux/arch/mips/ite-boards/ivr/pci_fixup.c
@@ -0,0 +1,139 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *	Globespan IVR board-specific pci fixups.
+ *
+ * Copyright 2000 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *         	ppopov@mvista.com or source@mvista.com
+ *
+ *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  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.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/config.h>
+
+#ifdef CONFIG_PCI
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/it8172/it8172.h>
+#include <asm/it8172/it8172_pci.h>
+#include <asm/it8172/it8172_int.h>
+
+void __init board_int_line_fixup(struct pci_dev *dev)     
+{
+	unsigned int slot, func;
+	unsigned char pin;
+        const int internal_func_irqs[7] = {
+            IT8172_AC97_IRQ,
+            IT8172_DMA_IRQ,
+            IT8172_CDMA_IRQ,
+            IT8172_USB_IRQ,
+            IT8172_BRIDGE_MASTER_IRQ,
+            IT8172_IDE_IRQ,
+            IT8172_MC68K_IRQ
+        };
+
+#ifdef DEBUG
+	printk("board_int_line_fixup bus %d\n", dev->bus->number);
+#endif
+	if (dev->bus->number != 0)
+		return;
+
+	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+
+#ifdef DEBUG
+	pci_read_config_dword(dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor);
+#endif
+
+	slot = PCI_SLOT(dev->devfn);
+        func = PCI_FUNC(dev->devfn);
+
+	switch (slot) {
+                case 0x01:
+                    /*
+                     * Internal device 1 is actually 7 different internal
+                     * devices on the IT8172G (a multi-function device).
+                     */
+                    if (func < 7)
+                        dev->irq = internal_func_irqs[func];
+                    break;
+		case 0x11:
+			switch (pin) {
+				case 0: /* pin A, hardware bug */
+				case 1: /* pin A */
+					dev->irq = IT8172_PCI_INTC_IRQ;
+					break;
+				case 2: /* pin B */
+					dev->irq = IT8172_PCI_INTD_IRQ;
+					break;
+				case 3: /* pin C */
+					dev->irq = IT8172_PCI_INTA_IRQ;
+					break;
+				case 4: /* pin D */
+					dev->irq = IT8172_PCI_INTB_IRQ;
+					break;
+				default:
+					dev->irq = 0xff; 
+					break;
+
+			}
+			break;
+		case 0x13:
+			switch (pin) {
+				case 0: /* pin A, hardware bug */
+				case 1: /* pin A */
+					dev->irq = IT8172_PCI_INTA_IRQ;
+					break;
+				case 2: /* pin B */
+					dev->irq = IT8172_PCI_INTB_IRQ;
+					break;
+				case 3: /* pin C */
+					dev->irq = IT8172_PCI_INTC_IRQ;
+					break;
+				case 4: /* pin D */
+					dev->irq = IT8172_PCI_INTD_IRQ;
+					break;
+				default:
+					dev->irq = 0xff; 
+					break;
+
+			}
+			break;
+		default:
+			return;
+	}
+
+#ifdef DEBUG
+	printk("irq fixup: slot %d, vendor %x, int line %d, int number %d\n",
+			slot, vendor, pin, dev->irq);
+#endif
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+
+}
+
+struct pci_fixup pcibios_fixups[] = {
+	{ PCI_FIXUP_HEADER, PCI_ANY_ID, PCI_ANY_ID, board_int_line_fixup },
+	{ 0 }
+};
+#endif