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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*
* linux/arch/arm/mach-omap1/devices.c
*
* OMAP1 platform device setup/initialization
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <mach/hardware.h>
#include <asm/mach/map.h>
#include <plat/tc.h>
#include <plat/board.h>
#include <plat/mux.h>
#include <mach/gpio.h>
#include <plat/mmc.h>
#include <plat/omap7xx.h>
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
#define OMAP_RTC_BASE 0xfffb4800
static struct resource rtc_resources[] = {
{
.start = OMAP_RTC_BASE,
.end = OMAP_RTC_BASE + 0x5f,
.flags = IORESOURCE_MEM,
},
{
.start = INT_RTC_TIMER,
.flags = IORESOURCE_IRQ,
},
{
.start = INT_RTC_ALARM,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device omap_rtc_device = {
.name = "omap_rtc",
.id = -1,
.num_resources = ARRAY_SIZE(rtc_resources),
.resource = rtc_resources,
};
static void omap_init_rtc(void)
{
(void) platform_device_register(&omap_rtc_device);
}
#else
static inline void omap_init_rtc(void) {}
#endif
static inline void omap_init_mbox(void) { }
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
int controller_nr)
{
if (controller_nr == 0) {
if (cpu_is_omap7xx()) {
omap_cfg_reg(MMC_7XX_CMD);
omap_cfg_reg(MMC_7XX_CLK);
omap_cfg_reg(MMC_7XX_DAT0);
} else {
omap_cfg_reg(MMC_CMD);
omap_cfg_reg(MMC_CLK);
omap_cfg_reg(MMC_DAT0);
}
if (cpu_is_omap1710()) {
omap_cfg_reg(M15_1710_MMC_CLKI);
omap_cfg_reg(P19_1710_MMC_CMDDIR);
omap_cfg_reg(P20_1710_MMC_DATDIR0);
}
if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
omap_cfg_reg(MMC_DAT1);
/* NOTE: DAT2 can be on W10 (here) or M15 */
if (!mmc_controller->slots[0].nomux)
omap_cfg_reg(MMC_DAT2);
omap_cfg_reg(MMC_DAT3);
}
}
/* Block 2 is on newer chips, and has many pinout options */
if (cpu_is_omap16xx() && controller_nr == 1) {
if (!mmc_controller->slots[1].nomux) {
omap_cfg_reg(Y8_1610_MMC2_CMD);
omap_cfg_reg(Y10_1610_MMC2_CLK);
omap_cfg_reg(R18_1610_MMC2_CLKIN);
omap_cfg_reg(W8_1610_MMC2_DAT0);
if (mmc_controller->slots[1].wires == 4) {
omap_cfg_reg(V8_1610_MMC2_DAT1);
omap_cfg_reg(W15_1610_MMC2_DAT2);
omap_cfg_reg(R10_1610_MMC2_DAT3);
}
/* These are needed for the level shifter */
omap_cfg_reg(V9_1610_MMC2_CMDDIR);
omap_cfg_reg(V5_1610_MMC2_DATDIR0);
omap_cfg_reg(W19_1610_MMC2_DATDIR1);
}
/* Feedback clock must be set on OMAP-1710 MMC2 */
if (cpu_is_omap1710())
omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
MOD_CONF_CTRL_1);
}
}
void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
int nr_controllers)
{
int i;
for (i = 0; i < nr_controllers; i++) {
unsigned long base, size;
unsigned int irq = 0;
if (!mmc_data[i])
continue;
omap1_mmc_mux(mmc_data[i], i);
switch (i) {
case 0:
base = OMAP1_MMC1_BASE;
irq = INT_MMC;
break;
case 1:
if (!cpu_is_omap16xx())
return;
base = OMAP1_MMC2_BASE;
irq = INT_1610_MMC2;
break;
default:
continue;
}
size = OMAP1_MMC_SIZE;
omap_mmc_add("mmci-omap", i, base, size, irq, mmc_data[i]);
};
}
#endif
/*-------------------------------------------------------------------------*/
/* OMAP7xx SPI support */
#if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
struct platform_device omap_spi1 = {
.name = "omap1_spi100k",
.id = 1,
};
struct platform_device omap_spi2 = {
.name = "omap1_spi100k",
.id = 2,
};
static void omap_init_spi100k(void)
{
omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
if (omap_spi1.dev.platform_data)
platform_device_register(&omap_spi1);
omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
if (omap_spi2.dev.platform_data)
platform_device_register(&omap_spi2);
}
#else
static inline void omap_init_spi100k(void)
{
}
#endif
/*-------------------------------------------------------------------------*/
static inline void omap_init_sti(void) {}
/*-------------------------------------------------------------------------*/
/*
* This gets called after board-specific INIT_MACHINE, and initializes most
* on-chip peripherals accessible on this board (except for few like USB):
*
* (a) Does any "standard config" pin muxing needed. Board-specific
* code will have muxed GPIO pins and done "nonstandard" setup;
* that code could live in the boot loader.
* (b) Populating board-specific platform_data with the data drivers
* rely on to handle wiring variations.
* (c) Creating platform devices as meaningful on this board and
* with this kernel configuration.
*
* Claiming GPIOs, and setting their direction and initial values, is the
* responsibility of the device drivers. So is responding to probe().
*
* Board-specific knowlege like creating devices or pin setup is to be
* kept out of drivers as much as possible. In particular, pin setup
* may be handled by the boot loader, and drivers should expect it will
* normally have been done by the time they're probed.
*/
static int __init omap1_init_devices(void)
{
/* please keep these calls, and their implementations above,
* in alphabetical order so they're easier to sort through.
*/
omap_init_mbox();
omap_init_rtc();
omap_init_spi100k();
omap_init_sti();
return 0;
}
arch_initcall(omap1_init_devices);
|
