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) 2011-2012
* Lauri Hintsala, Bluegiga, <lauri.hintsala@bluegiga.com>
* Veli-Pekka Peltola, Bluegiga, <veli-pekka.peltola@bluegiga.com>
*
* based on: mach-mx28evk.c
* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.
*
* 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.
*/
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/micrel_phy.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/digctl.h>
#include <mach/iomux-mx28.h>
#include "devices-mx28.h"
#define APX4DEVKIT_GPIO_USERLED MXS_GPIO_NR(3, 28)
static const iomux_cfg_t apx4devkit_pads[] __initconst = {
/* duart */
MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
MX28_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,
/* auart0 */
MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL,
MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL,
MX28_PAD_AUART0_CTS__AUART0_CTS | MXS_PAD_CTRL,
MX28_PAD_AUART0_RTS__AUART0_RTS | MXS_PAD_CTRL,
/* auart1 */
MX28_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL,
MX28_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,
/* auart2 */
MX28_PAD_SSP2_SCK__AUART2_RX | MXS_PAD_CTRL,
MX28_PAD_SSP2_MOSI__AUART2_TX | MXS_PAD_CTRL,
/* auart3 */
MX28_PAD_SSP2_MISO__AUART3_RX | MXS_PAD_CTRL,
MX28_PAD_SSP2_SS0__AUART3_TX | MXS_PAD_CTRL,
#define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP)
/* fec0 */
MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC,
MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC,
MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC,
MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC,
MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC,
/* i2c */
MX28_PAD_I2C0_SCL__I2C0_SCL,
MX28_PAD_I2C0_SDA__I2C0_SDA,
/* mmc0 */
MX28_PAD_SSP0_DATA0__SSP0_D0 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA1__SSP0_D1 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA2__SSP0_D2 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA3__SSP0_D3 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA4__SSP0_D4 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA5__SSP0_D5 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA6__SSP0_D6 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DATA7__SSP0_D7 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_CMD__SSP0_CMD |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
MX28_PAD_SSP0_SCK__SSP0_SCK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* led */
MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL,
/* saif0 & saif1 */
MX28_PAD_SAIF0_MCLK__SAIF0_MCLK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
};
/* led */
static const struct gpio_led apx4devkit_leds[] __initconst = {
{
.name = "user-led",
.default_trigger = "heartbeat",
.gpio = APX4DEVKIT_GPIO_USERLED,
},
};
static const struct gpio_led_platform_data apx4devkit_led_data __initconst = {
.leds = apx4devkit_leds,
.num_leds = ARRAY_SIZE(apx4devkit_leds),
};
static const struct fec_platform_data mx28_fec_pdata __initconst = {
.phy = PHY_INTERFACE_MODE_RMII,
};
static const struct mxs_mmc_platform_data apx4devkit_mmc_pdata __initconst = {
.wp_gpio = -EINVAL,
.flags = SLOTF_4_BIT_CAPABLE,
};
static const struct i2c_board_info apx4devkit_i2c_boardinfo[] __initconst = {
{ I2C_BOARD_INFO("sgtl5000", 0x0a) }, /* ASoC */
{ I2C_BOARD_INFO("pcf8563", 0x51) }, /* RTC */
};
#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || \
defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
static struct regulator_consumer_supply apx4devkit_audio_consumer_supplies[] = {
REGULATOR_SUPPLY("VDDA", "0-000a"),
REGULATOR_SUPPLY("VDDIO", "0-000a"),
};
static struct regulator_init_data apx4devkit_vdd_reg_init_data = {
.constraints = {
.name = "3V3",
.always_on = 1,
},
.consumer_supplies = apx4devkit_audio_consumer_supplies,
.num_consumer_supplies = ARRAY_SIZE(apx4devkit_audio_consumer_supplies),
};
static struct fixed_voltage_config apx4devkit_vdd_pdata = {
.supply_name = "board-3V3",
.microvolts = 3300000,
.gpio = -EINVAL,
.enabled_at_boot = 1,
.init_data = &apx4devkit_vdd_reg_init_data,
};
static struct platform_device apx4devkit_voltage_regulator = {
.name = "reg-fixed-voltage",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &apx4devkit_vdd_pdata,
},
};
static void __init apx4devkit_add_regulators(void)
{
platform_device_register(&apx4devkit_voltage_regulator);
}
#else
static void __init apx4devkit_add_regulators(void) {}
#endif
static const struct mxs_saif_platform_data
apx4devkit_mxs_saif_pdata[] __initconst = {
/* working on EXTMSTR0 mode (saif0 master, saif1 slave) */
{
.master_mode = 1,
.master_id = 0,
}, {
.master_mode = 0,
.master_id = 0,
},
};
static int apx4devkit_phy_fixup(struct phy_device *phy)
{
phy->dev_flags |= MICREL_PHY_50MHZ_CLK;
return 0;
}
static void __init apx4devkit_fec_phy_clk_enable(void)
{
struct clk *clk;
/* Enable fec phy clock */
clk = clk_get_sys("enet_out", NULL);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
}
static void __init apx4devkit_init(void)
{
mx28_soc_init();
mxs_iomux_setup_multiple_pads(apx4devkit_pads,
ARRAY_SIZE(apx4devkit_pads));
mx28_add_duart();
mx28_add_auart0();
mx28_add_auart1();
mx28_add_auart2();
mx28_add_auart3();
/*
* Register fixup for the Micrel KS8031 PHY clock
* (shares same ID with KS8051)
*/
phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
apx4devkit_phy_fixup);
apx4devkit_fec_phy_clk_enable();
mx28_add_fec(0, &mx28_fec_pdata);
mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);
gpio_led_register_device(0, &apx4devkit_led_data);
mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
mx28_add_saif(0, &apx4devkit_mxs_saif_pdata[0]);
mx28_add_saif(1, &apx4devkit_mxs_saif_pdata[1]);
apx4devkit_add_regulators();
mx28_add_mxs_i2c(0);
i2c_register_board_info(0, apx4devkit_i2c_boardinfo,
ARRAY_SIZE(apx4devkit_i2c_boardinfo));
mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0, NULL, 0);
}
static void __init apx4devkit_timer_init(void)
{
mx28_clocks_init();
}
static struct sys_timer apx4devkit_timer = {
.init = apx4devkit_timer_init,
};
MACHINE_START(APX4DEVKIT, "Bluegiga APX4 Development Kit")
.map_io = mx28_map_io,
.init_irq = mx28_init_irq,
.timer = &apx4devkit_timer,
.init_machine = apx4devkit_init,
.restart = mxs_restart,
MACHINE_END
|
