patch-2.4.22 linux-2.4.22/arch/mips/momentum/ocelot_c/pci-irq.c
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- Lines: 74
- Date:
2003-08-25 04:44:40.000000000 -0700
- Orig file:
linux-2.4.21/arch/mips/momentum/ocelot_c/pci-irq.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.21/arch/mips/momentum/ocelot_c/pci-irq.c linux-2.4.22/arch/mips/momentum/ocelot_c/pci-irq.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2002 Momentum Computer Inc.
+ * Author: Matthew Dharm <mdharm@momenco.com>
+ *
+ * Based on work for the Linux port to the Ocelot board, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ *
+ * arch/mips/momentum/ocelot_g/pci.c
+ * Board-specific PCI routines for mv64340 controller.
+ *
+ * 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.
+ */
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <asm/pci.h>
+
+
+void __init mv64340_board_pcibios_fixup_bus(struct pci_bus *bus)
+{
+ struct pci_bus *current_bus = bus;
+ struct pci_dev *devices;
+ struct list_head *devices_link;
+ u16 cmd;
+
+ /* loop over all known devices on this bus */
+ list_for_each(devices_link, &(current_bus->devices)) {
+
+ devices = pci_dev_b(devices_link);
+ if (devices == NULL)
+ continue;
+
+ if ((current_bus->number == 0) &&
+ (PCI_SLOT(devices->devfn) == 1) &&
+ (PCI_FUNC(devices->devfn) == 0)) {
+ /* LSI 53C10101R SCSI (A) */
+ devices->irq = 2;
+ } else if ((current_bus->number == 0) &&
+ (PCI_SLOT(devices->devfn) == 1) &&
+ (PCI_FUNC(devices->devfn) == 1)) {
+ /* LSI 53C10101R SCSI (B) */
+ devices->irq = 2;
+ } else if ((current_bus->number == 1) &&
+ (PCI_SLOT(devices->devfn) == 1)) {
+ /* Intel 21555 bridge */
+ devices->irq = 12;
+ } else if ((current_bus->number == 1) &&
+ (PCI_SLOT(devices->devfn) == 2)) {
+ /* PMC Slot */
+ devices->irq = 4;
+ } else {
+ /* We don't have assign interrupts for other devices. */
+ devices->irq = 0xff;
+ }
+
+ /* Assign an interrupt number for the device */
+ bus->ops->write_byte(devices, PCI_INTERRUPT_LINE, devices->irq);
+
+ /* enable master for everything but the MV-64340 */
+ if (((current_bus->number != 0) && (current_bus->number != 1))
+ || (PCI_SLOT(devices->devfn) != 0)) {
+ bus->ops->read_word(devices, PCI_COMMAND, &cmd);
+ cmd |= PCI_COMMAND_MASTER;
+ bus->ops->write_word(devices, PCI_COMMAND, cmd);
+ }
+ }
+}
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