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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
From 9d9c0d49315520754660c8df3f42d93ecf7dba7a Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 14 Mar 2012 10:29:21 +0100
Subject: [PATCH 05/47] MIPS: ath79: separate common PCI code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The 'pcibios_map_irq' and 'pcibios_plat_dev_init'
are common functions and only instance one of them
can be present in a single kernel.
Currently these functions can be built only if the
CONFIG_SOC_AR724X option is selected. However the
ath79 platform contain support for the AR71XX SoCs,.
The AR71XX SoCs have a differnet PCI controller,
and those will require a different code.
Move the common PCI code into a separeate file in
order to be able to use that with other SoCs as
well.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: René Bolldorf <xsecute@googlemail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3485/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/ath79/Makefile | 1 +
arch/mips/ath79/pci.c | 46 +++++++++++++++++++++++++++++++++++++++++++
arch/mips/pci/pci-ath724x.c | 34 -------------------------------
3 files changed, 47 insertions(+), 34 deletions(-)
create mode 100644 arch/mips/ath79/pci.c
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -11,6 +11,7 @@
obj-y := prom.o setup.o irq.o common.o clock.o gpio.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_PCI) += pci.o
#
# Devices
--- /dev/null
+++ b/arch/mips/ath79/pci.c
@@ -0,0 +1,46 @@
+/*
+ * Atheros AR71XX/AR724X specific PCI setup code
+ *
+ * Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ *
+ * 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/pci.h>
+#include <asm/mach-ath79/pci-ath724x.h>
+
+static struct ath724x_pci_data *pci_data;
+static int pci_data_size;
+
+void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
+{
+ pci_data = data;
+ pci_data_size = size;
+}
+
+int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+{
+ unsigned int devfn = dev->devfn;
+ int irq = -1;
+
+ if (devfn > pci_data_size - 1)
+ return irq;
+
+ irq = pci_data[devfn].irq;
+
+ return irq;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ unsigned int devfn = dev->devfn;
+
+ if (devfn > pci_data_size - 1)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ dev->dev.platform_data = pci_data[devfn].pdata;
+
+ return PCIBIOS_SUCCESSFUL;
+}
--- a/arch/mips/pci/pci-ath724x.c
+++ b/arch/mips/pci/pci-ath724x.c
@@ -9,7 +9,6 @@
*/
#include <linux/pci.h>
-#include <asm/mach-ath79/pci-ath724x.h>
#define reg_read(_phys) (*(unsigned int *) KSEG1ADDR(_phys))
#define reg_write(_phys, _val) ((*(unsigned int *) KSEG1ADDR(_phys)) = (_val))
@@ -19,8 +18,6 @@
#define ATH724X_PCI_MEM_SIZE 0x08000000
static DEFINE_SPINLOCK(ath724x_pci_lock);
-static struct ath724x_pci_data *pci_data;
-static int pci_data_size;
static int ath724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
int size, uint32_t *value)
@@ -133,37 +130,6 @@ static struct pci_controller ath724x_pci
.mem_resource = &ath724x_mem_resource,
};
-void ath724x_pci_add_data(struct ath724x_pci_data *data, int size)
-{
- pci_data = data;
- pci_data_size = size;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
-{
- unsigned int devfn = dev->devfn;
- int irq = -1;
-
- if (devfn > pci_data_size - 1)
- return irq;
-
- irq = pci_data[devfn].irq;
-
- return irq;
-}
-
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- unsigned int devfn = dev->devfn;
-
- if (devfn > pci_data_size - 1)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- dev->dev.platform_data = pci_data[devfn].pdata;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
static int __init ath724x_pcibios_init(void)
{
register_pci_controller(&ath724x_pci_controller);
|
