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authorTrond Myklebust <Trond.Myklebust@netapp.com>2007-02-14 01:02:32 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-02-14 01:02:32 -0500
commitac98695d6c1508b724f246f38ce57fb4e3cec356 (patch)
tree189969a3689b9b83eaf39314a7942cc781ff836b /arch/powerpc/platforms/52xx/efika-pci.c
parentd9bc125caf592b7d081021f32ce5b717efdf70c8 (diff)
parent93bbad8fe13a25dcf7f3bc628a71d1a7642ae61b (diff)
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Diffstat (limited to 'arch/powerpc/platforms/52xx/efika-pci.c')
-rw-r--r--arch/powerpc/platforms/52xx/efika-pci.c119
1 files changed, 0 insertions, 119 deletions
diff --git a/arch/powerpc/platforms/52xx/efika-pci.c b/arch/powerpc/platforms/52xx/efika-pci.c
deleted file mode 100644
index 62e05b2a9227..000000000000
--- a/arch/powerpc/platforms/52xx/efika-pci.c
+++ /dev/null
@@ -1,119 +0,0 @@
1
2#include <linux/kernel.h>
3#include <linux/pci.h>
4#include <linux/string.h>
5#include <linux/init.h>
6
7#include <asm/io.h>
8#include <asm/irq.h>
9#include <asm/prom.h>
10#include <asm/machdep.h>
11#include <asm/sections.h>
12#include <asm/pci-bridge.h>
13#include <asm/rtas.h>
14
15#include "efika.h"
16
17#ifdef CONFIG_PCI
18/*
19 * Access functions for PCI config space using RTAS calls.
20 */
21static int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
22 int len, u32 * val)
23{
24 struct pci_controller *hose = bus->sysdata;
25 unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
26 | (((bus->number - hose->first_busno) & 0xff) << 16)
27 | (hose->index << 24);
28 int ret = -1;
29 int rval;
30
31 rval = rtas_call(rtas_token("read-pci-config"), 2, 2, &ret, addr, len);
32 *val = ret;
33 return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
34}
35
36static int rtas_write_config(struct pci_bus *bus, unsigned int devfn,
37 int offset, int len, u32 val)
38{
39 struct pci_controller *hose = bus->sysdata;
40 unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
41 | (((bus->number - hose->first_busno) & 0xff) << 16)
42 | (hose->index << 24);
43 int rval;
44
45 rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
46 addr, len, val);
47 return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
48}
49
50static struct pci_ops rtas_pci_ops = {
51 rtas_read_config,
52 rtas_write_config
53};
54
55void __init efika_pcisetup(void)
56{
57 const int *bus_range;
58 int len;
59 struct pci_controller *hose;
60 struct device_node *root;
61 struct device_node *pcictrl;
62
63 root = of_find_node_by_path("/");
64 if (root == NULL) {
65 printk(KERN_WARNING EFIKA_PLATFORM_NAME
66 ": Unable to find the root node\n");
67 return;
68 }
69
70 for (pcictrl = NULL;;) {
71 pcictrl = of_get_next_child(root, pcictrl);
72 if ((pcictrl == NULL) || (strcmp(pcictrl->name, "pci") == 0))
73 break;
74 }
75
76 of_node_put(root);
77
78 if (pcictrl == NULL) {
79 printk(KERN_WARNING EFIKA_PLATFORM_NAME
80 ": Unable to find the PCI bridge node\n");
81 return;
82 }
83
84 bus_range = get_property(pcictrl, "bus-range", &len);
85 if (bus_range == NULL || len < 2 * sizeof(int)) {
86 printk(KERN_WARNING EFIKA_PLATFORM_NAME
87 ": Can't get bus-range for %s\n", pcictrl->full_name);
88 return;
89 }
90
91 if (bus_range[1] == bus_range[0])
92 printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI bus %d",
93 bus_range[0]);
94 else
95 printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI buses %d..%d",
96 bus_range[0], bus_range[1]);
97 printk(" controlled by %s\n", pcictrl->full_name);
98 printk("\n");
99
100 hose = pcibios_alloc_controller();
101 if (!hose) {
102 printk(KERN_WARNING EFIKA_PLATFORM_NAME
103 ": Can't allocate PCI controller structure for %s\n",
104 pcictrl->full_name);
105 return;
106 }
107
108 hose->arch_data = of_node_get(pcictrl);
109 hose->first_busno = bus_range[0];
110 hose->last_busno = bus_range[1];
111 hose->ops = &rtas_pci_ops;
112
113 pci_process_bridge_OF_ranges(hose, pcictrl, 0);
114}
115
116#else
117void __init efika_pcisetup(void)
118{}
119#endif