patch-2.4.22 linux-2.4.22/arch/mips/gt64120/momenco_ocelot/fixup-ocelot.c
Next file: linux-2.4.22/arch/mips/gt64120/momenco_ocelot/int-handler.S
Previous file: linux-2.4.22/arch/mips/gt64120/momenco_ocelot/dbg_io.c
Back to the patch index
Back to the overall index
- Lines: 88
- Date:
2003-08-25 04:44:40.000000000 -0700
- Orig file:
linux-2.4.21/arch/mips/gt64120/momenco_ocelot/fixup-ocelot.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.21/arch/mips/gt64120/momenco_ocelot/fixup-ocelot.c linux-2.4.22/arch/mips/gt64120/momenco_ocelot/fixup-ocelot.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ *
+ * arch/mips/gt64120/momenco_ocelot/pci.c
+ * Board-specific PCI routines for gt64120 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>
+
+static __inline__ int pci_range_ck(unsigned char bus, unsigned char dev)
+{
+ /*
+ * We don't even pretend to handle other busses than bus 0 correctly.
+ * Accessing device 31 crashes the CP7000 for some reason.
+ */
+ if ((bus == 0) && (dev != 31))
+ return 0;
+
+ return -1;
+}
+
+
+void __init gt64120_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;
+
+ list_for_each(devices_link, &(current_bus->devices)) {
+
+ devices = pci_dev_b(devices_link);
+ if (devices == NULL)
+ continue;
+
+ if (PCI_SLOT(devices->devfn) == 1) {
+ /*
+ * Slot 1 is primary ether port, i82559
+ * we double-check against that assumption
+ */
+ if ((devices->vendor != 0x8086) ||
+ (devices->device != 0x1209) ) {
+ panic("gt64120_board_pcibios_fixup_bus: found "
+ "unexpected PCI device in slot 1.");
+ }
+ devices->irq = 2; /* irq_nr is 2 for INT0 */
+ } else if (PCI_SLOT(devices->devfn) == 2) {
+ /*
+ * Slot 2 is secondary ether port, i21143
+ * we double-check against that assumption
+ */
+ if ((devices->vendor != 0x1011) ||
+ (devices->device != 0x19) ) {
+ panic("gt64120_board_pcibios_fixup_bus: "
+ "found unexpected PCI device in slot 2.");
+ }
+ devices->irq = 3; /* irq_nr is 3 for INT1 */
+ } else if (PCI_SLOT(devices->devfn) == 4) {
+ /* PMC Slot 1 */
+ devices->irq = 8; /* irq_nr is 8 for INT6 */
+ } else if (PCI_SLOT(devices->devfn) == 5) {
+ /* PMC Slot 1 */
+ devices->irq = 9; /* irq_nr is 9 for INT7 */
+ } 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 */
+ bus->ops->read_word(devices, PCI_COMMAND, &cmd);
+ cmd |= PCI_COMMAND_MASTER;
+ bus->ops->write_word(devices, PCI_COMMAND, cmd);
+ }
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)