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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
Index: linux-3.1/arch/arm/mach-omap2/board-n8x0.c
===================================================================
--- linux-3.1.orig/arch/arm/mach-omap2/board-n8x0.c 2011-10-30 19:31:54.096705150 +0100
+++ linux-3.1/arch/arm/mach-omap2/board-n8x0.c 2011-10-30 19:34:46.537525210 +0100
@@ -15,8 +15,11 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/init.h>
+#include <linux/irq.h>
#include <linux/io.h>
#include <linux/stddef.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/cbus.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/usb/musb.h>
@@ -193,6 +196,110 @@ static struct omap_onenand_platform_data
};
#endif
+#if defined(CONFIG_CBUS) || defined(CONFIG_CBUS_MODULE)
+
+static struct cbus_host_platform_data n8x0_cbus_data = {
+ .clk_gpio = 66,
+ .dat_gpio = 65,
+ .sel_gpio = 64,
+};
+
+static struct platform_device n8x0_cbus_device = {
+ .name = "cbus",
+ .id = -1,
+ .dev = {
+ .platform_data = &n8x0_cbus_data,
+ },
+};
+
+static struct resource retu_resource[] = {
+ {
+ .start = -EINVAL, /* set later */
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct cbus_retu_platform_data n8x0_retu_data = {
+ .devid = CBUS_RETU_DEVICE_ID,
+};
+
+static struct platform_device retu_device = {
+ .name = "retu",
+ .id = -1,
+ .resource = retu_resource,
+ .num_resources = ARRAY_SIZE(retu_resource),
+ .dev = {
+ .platform_data = &n8x0_retu_data,
+ .parent = &n8x0_cbus_device.dev,
+ },
+};
+
+static struct resource tahvo_resource[] = {
+ {
+ .start = -EINVAL, /* set later */
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device tahvo_device = {
+ .name = "tahvo",
+ .id = -1,
+ .resource = tahvo_resource,
+ .num_resources = ARRAY_SIZE(tahvo_resource),
+ .dev = {
+ .parent = &n8x0_cbus_device.dev,
+ },
+};
+
+static void __init n8x0_cbus_init(void)
+{
+ int ret;
+
+ platform_device_register(&n8x0_cbus_device);
+
+ ret = gpio_request(108, "RETU irq");
+ if (ret < 0) {
+ pr_err("retu: Unable to reserve IRQ GPIO\n");
+ return;
+ }
+
+ ret = gpio_direction_input(108);
+ if (ret < 0) {
+ pr_err("retu: Unable to change gpio direction\n");
+ gpio_free(108);
+ return;
+ }
+
+ irq_set_irq_type(gpio_to_irq(108), IRQ_TYPE_EDGE_RISING);
+ retu_resource[0].start = gpio_to_irq(108);
+ platform_device_register(&retu_device);
+
+ ret = gpio_request(111, "TAHVO irq");
+ if (ret) {
+ pr_err("tahvo: Unable to reserve IRQ GPIO\n");
+ gpio_free(108);
+ return;
+ }
+
+ /* Set the pin as input */
+ ret = gpio_direction_input(111);
+ if (ret) {
+ pr_err("tahvo: Unable to change direction\n");
+ gpio_free(108);
+ gpio_free(111);
+ return;
+ }
+
+ tahvo_resource[0].start = gpio_to_irq(111);
+ platform_device_register(&tahvo_device);
+}
+
+#else
+static inline void __init n8x0_cbus_init(void)
+{
+}
+#endif
+
#if defined(CONFIG_MENELAUS) && \
(defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
@@ -679,6 +786,8 @@ static inline void board_serial_init(voi
static void __init n8x0_init_machine(void)
{
omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
+ n8x0_cbus_init();
+
/* FIXME: add n810 spi devices */
spi_register_board_info(n800_spi_board_info,
ARRAY_SIZE(n800_spi_board_info));
Index: linux-3.1/include/linux/platform_data/cbus.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-3.1/include/linux/platform_data/cbus.h 2011-10-30 19:31:55.452679772 +0100
@@ -0,0 +1,38 @@
+/*
+ * cbus.h - CBUS platform_data definition
+ *
+ * Copyright (C) 2004 - 2009 Nokia Corporation
+ *
+ * Written by Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __INCLUDE_LINUX_CBUS_H
+#define __INCLUDE_LINUX_CBUS_H
+
+#define CBUS_RETU_DEVICE_ID 0x01
+#define CBUS_TAHVO_DEVICE_ID 0x02
+
+struct cbus_host_platform_data {
+ int dat_gpio;
+ int clk_gpio;
+ int sel_gpio;
+};
+
+struct cbus_retu_platform_data {
+ int devid;
+};
+
+#endif /* __INCLUDE_LINUX_CBUS_H */
|
