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
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
|
/*
* Copyright (C) Arnaud Patard <arnaud.patard@rtp-net.org>
*
* based on code from the following
* Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
* Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/spi/flash.h>
#include <linux/spi/spi.h>
#include <linux/mfd/mc13892.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/consumer.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <mach/ulpi.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx51.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "devices-imx51.h"
#include "efika.h"
#define EFIKASB_USBH2_STP IMX_GPIO_NR(2, 20)
#define EFIKASB_GREEN_LED IMX_GPIO_NR(1, 3)
#define EFIKASB_WHITE_LED IMX_GPIO_NR(2, 25)
#define EFIKASB_PCBID0 IMX_GPIO_NR(2, 28)
#define EFIKASB_PCBID1 IMX_GPIO_NR(2, 29)
#define EFIKASB_PWRKEY IMX_GPIO_NR(2, 31)
#define EFIKASB_LID IMX_GPIO_NR(3, 14)
#define EFIKASB_POWEROFF IMX_GPIO_NR(4, 13)
#define EFIKASB_RFKILL IMX_GPIO_NR(3, 1)
#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
static iomux_v3_cfg_t mx51efikasb_pads[] = {
/* USB HOST2 */
MX51_PAD_EIM_D16__USBH2_DATA0,
MX51_PAD_EIM_D17__USBH2_DATA1,
MX51_PAD_EIM_D18__USBH2_DATA2,
MX51_PAD_EIM_D19__USBH2_DATA3,
MX51_PAD_EIM_D20__USBH2_DATA4,
MX51_PAD_EIM_D21__USBH2_DATA5,
MX51_PAD_EIM_D22__USBH2_DATA6,
MX51_PAD_EIM_D23__USBH2_DATA7,
MX51_PAD_EIM_A24__USBH2_CLK,
MX51_PAD_EIM_A25__USBH2_DIR,
MX51_PAD_EIM_A26__USBH2_STP,
MX51_PAD_EIM_A27__USBH2_NXT,
/* leds */
MX51_PAD_EIM_CS0__GPIO2_25,
MX51_PAD_GPIO1_3__GPIO1_3,
/* pcb id */
MX51_PAD_EIM_CS3__GPIO2_28,
MX51_PAD_EIM_CS4__GPIO2_29,
/* lid */
MX51_PAD_CSI1_VSYNC__GPIO3_14,
/* power key*/
MX51_PAD_PWRKEY,
/* wifi/bt button */
MX51_PAD_DI1_PIN12__GPIO3_1,
/* power off */
MX51_PAD_CSI2_VSYNC__GPIO4_13,
/* wdog reset */
MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
/* BT */
MX51_PAD_EIM_A17__GPIO2_11,
};
static int initialize_usbh2_port(struct platform_device *pdev)
{
iomux_v3_cfg_t usbh2stp = MX51_PAD_EIM_A26__USBH2_STP;
iomux_v3_cfg_t usbh2gpio = MX51_PAD_EIM_A26__GPIO2_20;
mxc_iomux_v3_setup_pad(usbh2gpio);
gpio_request(EFIKASB_USBH2_STP, "usbh2_stp");
gpio_direction_output(EFIKASB_USBH2_STP, 0);
msleep(1);
gpio_set_value(EFIKASB_USBH2_STP, 1);
msleep(1);
gpio_free(EFIKASB_USBH2_STP);
mxc_iomux_v3_setup_pad(usbh2stp);
mdelay(10);
return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
}
static struct mxc_usbh_platform_data usbh2_config __initdata = {
.init = initialize_usbh2_port,
.portsc = MXC_EHCI_MODE_ULPI,
};
static void __init mx51_efikasb_usb(void)
{
usbh2_config.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT | ULPI_OTG_EXTVBUSIND);
if (usbh2_config.otg)
imx51_add_mxc_ehci_hs(2, &usbh2_config);
}
static const struct gpio_led mx51_efikasb_leds[] __initconst = {
{
.name = "efikasb:green",
.default_trigger = "default-on",
.gpio = EFIKASB_GREEN_LED,
.active_low = 1,
},
{
.name = "efikasb:white",
.default_trigger = "caps",
.gpio = EFIKASB_WHITE_LED,
},
};
static const struct gpio_led_platform_data
mx51_efikasb_leds_data __initconst = {
.leds = mx51_efikasb_leds,
.num_leds = ARRAY_SIZE(mx51_efikasb_leds),
};
static struct gpio_keys_button mx51_efikasb_keys[] = {
{
.code = KEY_POWER,
.gpio = EFIKASB_PWRKEY,
.type = EV_KEY,
.desc = "Power Button",
.wakeup = 1,
.active_low = 1,
},
{
.code = SW_LID,
.gpio = EFIKASB_LID,
.type = EV_SW,
.desc = "Lid Switch",
.active_low = 1,
},
{
.code = KEY_RFKILL,
.gpio = EFIKASB_RFKILL,
.type = EV_KEY,
.desc = "rfkill",
.active_low = 1,
},
};
static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
.buttons = mx51_efikasb_keys,
.nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
};
static struct regulator *pwgt1, *pwgt2;
static void mx51_efikasb_power_off(void)
{
gpio_set_value(EFIKA_USB_PHY_RESET, 0);
if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
regulator_disable(pwgt2);
regulator_disable(pwgt1);
}
gpio_direction_output(EFIKASB_POWEROFF, 1);
}
static int __init mx51_efikasb_power_init(void)
{
if (machine_is_mx51_efikasb()) {
pwgt1 = regulator_get(NULL, "pwgt1");
pwgt2 = regulator_get(NULL, "pwgt2");
if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
regulator_enable(pwgt1);
regulator_enable(pwgt2);
}
gpio_request(EFIKASB_POWEROFF, "poweroff");
pm_power_off = mx51_efikasb_power_off;
regulator_has_full_constraints();
}
return 0;
}
late_initcall(mx51_efikasb_power_init);
/* 01 R1.3 board
10 R2.0 board */
static void __init mx51_efikasb_board_id(void)
{
int id;
gpio_request(EFIKASB_PCBID0, "pcb id0");
gpio_direction_input(EFIKASB_PCBID0);
gpio_request(EFIKASB_PCBID1, "pcb id1");
gpio_direction_input(EFIKASB_PCBID1);
id = gpio_get_value(EFIKASB_PCBID0) ? 1 : 0;
id |= (gpio_get_value(EFIKASB_PCBID1) ? 1 : 0) << 1;
switch (id) {
default:
break;
case 1:
system_rev = 0x13;
break;
case 2:
system_rev = 0x20;
break;
}
}
static void __init efikasb_board_init(void)
{
imx51_soc_init();
mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
ARRAY_SIZE(mx51efikasb_pads));
efika_board_common_init();
mx51_efikasb_board_id();
mx51_efikasb_usb();
imx51_add_sdhci_esdhc_imx(1, NULL);
gpio_led_register_device(-1, &mx51_efikasb_leds_data);
imx_add_gpio_keys(&mx51_efikasb_keys_data);
}
static void __init mx51_efikasb_timer_init(void)
{
mx51_clocks_init(32768, 24000000, 22579200, 24576000);
}
static struct sys_timer mx51_efikasb_timer = {
.init = mx51_efikasb_timer_init,
};
MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
.atag_offset = 0x100,
.map_io = mx51_map_io,
.init_early = imx51_init_early,
.init_irq = mx51_init_irq,
.init_machine = efikasb_board_init,
.timer = &mx51_efikasb_timer,
MACHINE_END
|
