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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
* Emma Mobile EV2 processor support
*
* Copyright (C) 2012 Magnus Damm
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/platform_data/gpio-em.h>
#include <linux/of_platform.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/irqchip/arm-gic.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/emev2.h>
#include <mach/irqs.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
static struct map_desc emev2_io_desc[] __initdata = {
#ifdef CONFIG_SMP
/* 2M mapping for SCU + L2 controller */
{
.virtual = 0xf0000000,
.pfn = __phys_to_pfn(0x1e000000),
.length = SZ_2M,
.type = MT_DEVICE
},
#endif
};
void __init emev2_map_io(void)
{
iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
}
/* UART */
static struct resource uart0_resources[] = {
DEFINE_RES_MEM(0xe1020000, 0x38),
DEFINE_RES_IRQ(40),
};
static struct resource uart1_resources[] = {
DEFINE_RES_MEM(0xe1030000, 0x38),
DEFINE_RES_IRQ(41),
};
static struct resource uart2_resources[] = {
DEFINE_RES_MEM(0xe1040000, 0x38),
DEFINE_RES_IRQ(42),
};
static struct resource uart3_resources[] = {
DEFINE_RES_MEM(0xe1050000, 0x38),
DEFINE_RES_IRQ(43),
};
#define emev2_register_uart(idx) \
platform_device_register_simple("serial8250-em", idx, \
uart##idx##_resources, \
ARRAY_SIZE(uart##idx##_resources))
/* STI */
static struct resource sti_resources[] = {
DEFINE_RES_MEM(0xe0180000, 0x54),
DEFINE_RES_IRQ(157),
};
#define emev2_register_sti() \
platform_device_register_simple("em_sti", 0, \
sti_resources, \
ARRAY_SIZE(sti_resources))
/* GIO */
static struct gpio_em_config gio0_config = {
.gpio_base = 0,
.irq_base = EMEV2_GPIO_IRQ(0),
.number_of_pins = 32,
};
static struct resource gio0_resources[] = {
DEFINE_RES_MEM(0xe0050000, 0x2c),
DEFINE_RES_MEM(0xe0050040, 0x20),
DEFINE_RES_IRQ(99),
DEFINE_RES_IRQ(100),
};
static struct gpio_em_config gio1_config = {
.gpio_base = 32,
.irq_base = EMEV2_GPIO_IRQ(32),
.number_of_pins = 32,
};
static struct resource gio1_resources[] = {
DEFINE_RES_MEM(0xe0050080, 0x2c),
DEFINE_RES_MEM(0xe00500c0, 0x20),
DEFINE_RES_IRQ(101),
DEFINE_RES_IRQ(102),
};
static struct gpio_em_config gio2_config = {
.gpio_base = 64,
.irq_base = EMEV2_GPIO_IRQ(64),
.number_of_pins = 32,
};
static struct resource gio2_resources[] = {
DEFINE_RES_MEM(0xe0050100, 0x2c),
DEFINE_RES_MEM(0xe0050140, 0x20),
DEFINE_RES_IRQ(103),
DEFINE_RES_IRQ(104),
};
static struct gpio_em_config gio3_config = {
.gpio_base = 96,
.irq_base = EMEV2_GPIO_IRQ(96),
.number_of_pins = 32,
};
static struct resource gio3_resources[] = {
DEFINE_RES_MEM(0xe0050180, 0x2c),
DEFINE_RES_MEM(0xe00501c0, 0x20),
DEFINE_RES_IRQ(105),
DEFINE_RES_IRQ(106),
};
static struct gpio_em_config gio4_config = {
.gpio_base = 128,
.irq_base = EMEV2_GPIO_IRQ(128),
.number_of_pins = 31,
};
static struct resource gio4_resources[] = {
DEFINE_RES_MEM(0xe0050200, 0x2c),
DEFINE_RES_MEM(0xe0050240, 0x20),
DEFINE_RES_IRQ(107),
DEFINE_RES_IRQ(108),
};
#define emev2_register_gio(idx) \
platform_device_register_resndata(&platform_bus, "em_gio", \
idx, gio##idx##_resources, \
ARRAY_SIZE(gio##idx##_resources), \
&gio##idx##_config, \
sizeof(struct gpio_em_config))
static struct resource pmu_resources[] = {
DEFINE_RES_IRQ(152),
DEFINE_RES_IRQ(153),
};
#define emev2_register_pmu() \
platform_device_register_simple("arm-pmu", -1, \
pmu_resources, \
ARRAY_SIZE(pmu_resources))
void __init emev2_add_standard_devices(void)
{
if (!IS_ENABLED(CONFIG_COMMON_CLK))
emev2_clock_init();
emev2_register_uart(0);
emev2_register_uart(1);
emev2_register_uart(2);
emev2_register_uart(3);
emev2_register_sti();
emev2_register_gio(0);
emev2_register_gio(1);
emev2_register_gio(2);
emev2_register_gio(3);
emev2_register_gio(4);
emev2_register_pmu();
}
void __init emev2_init_delay(void)
{
shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
}
#ifdef CONFIG_USE_OF
static const char *emev2_boards_compat_dt[] __initdata = {
"renesas,emev2",
NULL,
};
DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
.smp = smp_ops(emev2_smp_ops),
.map_io = emev2_map_io,
.init_early = emev2_init_delay,
.dt_compat = emev2_boards_compat_dt,
MACHINE_END
#endif /* CONFIG_USE_OF */
|
