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
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
|
/*
* Copyright (C) 2011
* Stefano Babic, DENX Software Engineering, <sbabic@denx.de>
*
* based on: mach-mx28_evk.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/irq.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/iomux-mx28.h>
#include "devices-mx28.h"
#define M28EVK_GPIO_USERLED1 MXS_GPIO_NR(3, 16)
#define M28EVK_GPIO_USERLED2 MXS_GPIO_NR(3, 17)
#define MX28EVK_BL_ENABLE MXS_GPIO_NR(3, 18)
#define M28EVK_LCD_ENABLE MXS_GPIO_NR(3, 28)
#define MX28EVK_MMC0_WRITE_PROTECT MXS_GPIO_NR(2, 12)
#define MX28EVK_MMC1_WRITE_PROTECT MXS_GPIO_NR(0, 28)
static const iomux_cfg_t m28evk_pads[] __initconst = {
/* duart */
MX28_PAD_AUART0_CTS__DUART_RX | MXS_PAD_CTRL,
MX28_PAD_AUART0_RTS__DUART_TX | MXS_PAD_CTRL,
/* auart0 */
MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL,
MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL,
/* auart3 */
MX28_PAD_AUART3_RX__AUART3_RX | MXS_PAD_CTRL,
MX28_PAD_AUART3_TX__AUART3_TX | MXS_PAD_CTRL,
MX28_PAD_AUART3_CTS__AUART3_CTS | MXS_PAD_CTRL,
MX28_PAD_AUART3_RTS__AUART3_RTS | 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,
/* fec1 */
MX28_PAD_ENET0_CRS__ENET1_RX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MXS_PAD_FEC,
MX28_PAD_ENET0_COL__ENET1_TX_EN | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MXS_PAD_FEC,
MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MXS_PAD_FEC,
/* flexcan0 */
MX28_PAD_GPMI_RDY2__CAN0_TX,
MX28_PAD_GPMI_RDY3__CAN0_RX,
/* flexcan1 */
MX28_PAD_GPMI_CE2N__CAN1_TX,
MX28_PAD_GPMI_CE3N__CAN1_RX,
/* I2C */
MX28_PAD_I2C0_SCL__I2C0_SCL,
MX28_PAD_I2C0_SDA__I2C0_SDA,
/* mxsfb (lcdif) */
MX28_PAD_LCD_D00__LCD_D0 | MXS_PAD_CTRL,
MX28_PAD_LCD_D01__LCD_D1 | MXS_PAD_CTRL,
MX28_PAD_LCD_D02__LCD_D2 | MXS_PAD_CTRL,
MX28_PAD_LCD_D03__LCD_D3 | MXS_PAD_CTRL,
MX28_PAD_LCD_D04__LCD_D4 | MXS_PAD_CTRL,
MX28_PAD_LCD_D05__LCD_D5 | MXS_PAD_CTRL,
MX28_PAD_LCD_D06__LCD_D6 | MXS_PAD_CTRL,
MX28_PAD_LCD_D07__LCD_D7 | MXS_PAD_CTRL,
MX28_PAD_LCD_D08__LCD_D8 | MXS_PAD_CTRL,
MX28_PAD_LCD_D09__LCD_D9 | MXS_PAD_CTRL,
MX28_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL,
MX28_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL,
MX28_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL,
MX28_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL,
MX28_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL,
MX28_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL,
MX28_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL,
MX28_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL,
MX28_PAD_LCD_D18__LCD_D18 | MXS_PAD_CTRL,
MX28_PAD_LCD_D19__LCD_D19 | MXS_PAD_CTRL,
MX28_PAD_LCD_D20__LCD_D20 | MXS_PAD_CTRL,
MX28_PAD_LCD_D21__LCD_D21 | MXS_PAD_CTRL,
MX28_PAD_LCD_D22__LCD_D22 | MXS_PAD_CTRL,
MX28_PAD_LCD_D23__LCD_D23 | MXS_PAD_CTRL,
MX28_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL,
MX28_PAD_LCD_DOTCLK__LCD_DOTCLK | MXS_PAD_CTRL,
/* 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),
/* mmc1 */
MX28_PAD_GPMI_D00__SSP1_D0 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D01__SSP1_D1 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D02__SSP1_D2 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D03__SSP1_D3 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D04__SSP1_D4 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D05__SSP1_D5 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D06__SSP1_D6 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_D07__SSP1_D7 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_RDY1__SSP1_CMD |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_RDY0__SSP1_CARD_DETECT |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_WRN__SSP1_SCK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* write protect */
MX28_PAD_GPMI_RESETN__GPIO_0_28 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* slot power enable */
MX28_PAD_PWM4__GPIO_3_29 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* led */
MX28_PAD_PWM0__GPIO_3_16 | MXS_PAD_CTRL,
MX28_PAD_PWM1__GPIO_3_17 | MXS_PAD_CTRL,
/* nand */
MX28_PAD_GPMI_D00__GPMI_D0 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D01__GPMI_D1 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D02__GPMI_D2 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D03__GPMI_D3 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D04__GPMI_D4 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D05__GPMI_D5 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D06__GPMI_D6 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_D07__GPMI_D7 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_CE0N__GPMI_CE0N |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_RDY0__GPMI_READY0 |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL),
MX28_PAD_GPMI_RDN__GPMI_RDN |
(MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_WRN__GPMI_WRN |
(MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_ALE__GPMI_ALE |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_CLE__GPMI_CLE |
(MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
MX28_PAD_GPMI_RESETN__GPMI_RESETN |
(MXS_PAD_12MA | MXS_PAD_1V8 | MXS_PAD_PULLUP),
/* Backlight */
MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL,
};
/* led */
static const struct gpio_led m28evk_leds[] __initconst = {
{
.name = "user-led1",
.default_trigger = "heartbeat",
.gpio = M28EVK_GPIO_USERLED1,
},
{
.name = "user-led2",
.default_trigger = "heartbeat",
.gpio = M28EVK_GPIO_USERLED2,
},
};
static const struct gpio_led_platform_data m28evk_led_data __initconst = {
.leds = m28evk_leds,
.num_leds = ARRAY_SIZE(m28evk_leds),
};
static struct fec_platform_data mx28_fec_pdata[] __initdata = {
{
/* fec0 */
.phy = PHY_INTERFACE_MODE_RMII,
}, {
/* fec1 */
.phy = PHY_INTERFACE_MODE_RMII,
},
};
static int __init m28evk_fec_get_mac(void)
{
int i;
u32 val;
const u32 *ocotp = mxs_get_ocotp();
if (!ocotp) {
pr_err("%s: timeout when reading fec mac from OCOTP\n",
__func__);
return -ETIMEDOUT;
}
/*
* OCOTP only stores the last 4 octets for each mac address,
* so hard-code DENX OUI (C0:E5:4E) here.
*/
for (i = 0; i < 2; i++) {
val = ocotp[i * 4];
mx28_fec_pdata[i].mac[0] = 0xC0;
mx28_fec_pdata[i].mac[1] = 0xE5;
mx28_fec_pdata[i].mac[2] = 0x4E;
mx28_fec_pdata[i].mac[3] = (val >> 16) & 0xff;
mx28_fec_pdata[i].mac[4] = (val >> 8) & 0xff;
mx28_fec_pdata[i].mac[5] = (val >> 0) & 0xff;
}
return 0;
}
/* mxsfb (lcdif) */
static struct fb_videomode m28evk_video_modes[] = {
{
.name = "Ampire AM-800480R2TMQW-T01H",
.refresh = 60,
.xres = 800,
.yres = 480,
.pixclock = 30066, /* picosecond (33.26 MHz) */
.left_margin = 0,
.right_margin = 256,
.upper_margin = 0,
.lower_margin = 45,
.hsync_len = 1,
.vsync_len = 1,
.sync = FB_SYNC_DATA_ENABLE_HIGH_ACT,
},
};
static const struct mxsfb_platform_data m28evk_mxsfb_pdata __initconst = {
.mode_list = m28evk_video_modes,
.mode_count = ARRAY_SIZE(m28evk_video_modes),
.default_bpp = 16,
.ld_intf_width = STMLCDIF_18BIT,
};
static struct at24_platform_data m28evk_eeprom = {
.byte_len = 16384,
.page_size = 32,
.flags = AT24_FLAG_ADDR16,
};
static struct i2c_board_info m28_stk5v3_i2c_boardinfo[] __initdata = {
{
I2C_BOARD_INFO("at24", 0x51), /* E0=1, E1=0, E2=0 */
.platform_data = &m28evk_eeprom,
},
};
static struct mxs_mmc_platform_data m28evk_mmc_pdata[] __initdata = {
{
/* mmc0 */
.wp_gpio = MX28EVK_MMC0_WRITE_PROTECT,
.flags = SLOTF_8_BIT_CAPABLE,
}, {
/* mmc1 */
.wp_gpio = MX28EVK_MMC1_WRITE_PROTECT,
.flags = SLOTF_8_BIT_CAPABLE,
},
};
static void __init m28evk_init(void)
{
mxs_iomux_setup_multiple_pads(m28evk_pads, ARRAY_SIZE(m28evk_pads));
mx28_add_duart();
mx28_add_auart0();
mx28_add_auart3();
if (!m28evk_fec_get_mac()) {
mx28_add_fec(0, &mx28_fec_pdata[0]);
mx28_add_fec(1, &mx28_fec_pdata[1]);
}
mx28_add_flexcan(0, NULL);
mx28_add_flexcan(1, NULL);
mx28_add_mxsfb(&m28evk_mxsfb_pdata);
mx28_add_mxs_mmc(0, &m28evk_mmc_pdata[0]);
mx28_add_mxs_mmc(1, &m28evk_mmc_pdata[1]);
gpio_led_register_device(0, &m28evk_led_data);
/* I2C */
mx28_add_mxs_i2c(0);
i2c_register_board_info(0, m28_stk5v3_i2c_boardinfo,
ARRAY_SIZE(m28_stk5v3_i2c_boardinfo));
}
static void __init m28evk_timer_init(void)
{
mx28_clocks_init();
}
static struct sys_timer m28evk_timer = {
.init = m28evk_timer_init,
};
MACHINE_START(M28EVK, "DENX M28 EVK")
.map_io = mx28_map_io,
.init_irq = mx28_init_irq,
.timer = &m28evk_timer,
.init_machine = m28evk_init,
MACHINE_END
|
