1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
arch/arm/mach-ixp4xx/ds101-pci.c | 68 +++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-ixp4xx/arch/arm/mach-ixp4xx/ds101-pci.c 2006-02-11 16:27:21.000000000 +0100
@@ -0,0 +1,68 @@
+/*
+ * arch/arm/mach-ixp4xx/ds101-pci.c
+ *
+ * DS101 board-level PCI initialization
+ *
+ * based on ixdp425-pci.c:
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Maintainer: http://www.nslu2-linux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+void __init ds101_pci_preinit(void)
+{
+ set_irq_type(IRQ_DS101_PCI_INTA, IRQT_LOW);
+ set_irq_type(IRQ_DS101_PCI_INTB, IRQT_LOW);
+ set_irq_type(IRQ_DS101_PCI_INTC, IRQT_LOW);
+
+ ixp4xx_pci_preinit();
+}
+
+static int __init ds101_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ static int pci_irq_table[DS101_PCI_MAX_DEV][DS101_PCI_IRQ_LINES] =
+ {
+ { IRQ_DS101_PCI_INTA, -1, -1 },
+ { IRQ_DS101_PCI_INTB, IRQ_DS101_PCI_INTB, IRQ_DS101_PCI_INTC },
+ };
+
+ int irq = -1;
+
+ if (slot >= 1 && slot <= DS101_PCI_MAX_DEV &&
+ pin >= 1 && pin <= DS101_PCI_IRQ_LINES)
+ irq = pci_irq_table[slot-1][pin-1];
+
+ return irq;
+}
+
+struct hw_pci __initdata ds101_pci = {
+ .nr_controllers = 1,
+ .preinit = ds101_pci_preinit,
+ .swizzle = pci_std_swizzle,
+ .setup = ixp4xx_setup,
+ .scan = ixp4xx_scan_bus,
+ .map_irq = ds101_map_irq,
+};
+
+int __init ds101_pci_init(void)
+{
+ if (machine_is_ds101())
+ pci_common_init(&ds101_pci);
+
+ return 0;
+}
+
+subsys_initcall(ds101_pci_init);
|
