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Linux 3.7-rc1
[linux-2.6-block.git] / arch / arm / mach-imx / mach-mx31_3ds.c
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1/*
2 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#include <linux/delay.h>
16#include <linux/dma-mapping.h>
17#include <linux/types.h>
18#include <linux/init.h>
19#include <linux/clk.h>
20#include <linux/irq.h>
21#include <linux/gpio.h>
22#include <linux/platform_device.h>
23#include <linux/mfd/mc13783.h>
24#include <linux/spi/spi.h>
25#include <linux/spi/l4f00242t03.h>
26#include <linux/regulator/machine.h>
27#include <linux/usb/otg.h>
28#include <linux/usb/ulpi.h>
29#include <linux/memblock.h>
30
31#include <media/soc_camera.h>
32
33#include <mach/hardware.h>
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/time.h>
37#include <asm/memory.h>
38#include <asm/mach/map.h>
39#include <asm/memblock.h>
40#include <mach/common.h>
41#include <mach/iomux-mx3.h>
42#include <mach/3ds_debugboard.h>
43#include <mach/ulpi.h>
44
45#include "devices-imx31.h"
46
47static int mx31_3ds_pins[] = {
48 /* UART1 */
49 MX31_PIN_CTS1__CTS1,
50 MX31_PIN_RTS1__RTS1,
51 MX31_PIN_TXD1__TXD1,
52 MX31_PIN_RXD1__RXD1,
53 IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
54 /*SPI0*/
55 IOMUX_MODE(MX31_PIN_DSR_DCE1, IOMUX_CONFIG_ALT1),
56 IOMUX_MODE(MX31_PIN_RI_DCE1, IOMUX_CONFIG_ALT1),
57 /* SPI 1 */
58 MX31_PIN_CSPI2_SCLK__SCLK,
59 MX31_PIN_CSPI2_MOSI__MOSI,
60 MX31_PIN_CSPI2_MISO__MISO,
61 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
62 MX31_PIN_CSPI2_SS0__SS0,
63 MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
64 /* MC13783 IRQ */
65 IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
66 /* USB OTG reset */
67 IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO),
68 /* USB OTG */
69 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
70 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
71 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
72 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
73 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
74 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
75 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
76 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
77 MX31_PIN_USBOTG_CLK__USBOTG_CLK,
78 MX31_PIN_USBOTG_DIR__USBOTG_DIR,
79 MX31_PIN_USBOTG_NXT__USBOTG_NXT,
80 MX31_PIN_USBOTG_STP__USBOTG_STP,
81 /*Keyboard*/
82 MX31_PIN_KEY_ROW0_KEY_ROW0,
83 MX31_PIN_KEY_ROW1_KEY_ROW1,
84 MX31_PIN_KEY_ROW2_KEY_ROW2,
85 MX31_PIN_KEY_COL0_KEY_COL0,
86 MX31_PIN_KEY_COL1_KEY_COL1,
87 MX31_PIN_KEY_COL2_KEY_COL2,
88 MX31_PIN_KEY_COL3_KEY_COL3,
89 /* USB Host 2 */
90 IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
91 IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
92 IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
93 IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
94 IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
95 IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
96 IOMUX_MODE(MX31_PIN_PC_VS2, IOMUX_CONFIG_ALT1),
97 IOMUX_MODE(MX31_PIN_PC_BVD1, IOMUX_CONFIG_ALT1),
98 IOMUX_MODE(MX31_PIN_PC_BVD2, IOMUX_CONFIG_ALT1),
99 IOMUX_MODE(MX31_PIN_PC_RST, IOMUX_CONFIG_ALT1),
100 IOMUX_MODE(MX31_PIN_IOIS16, IOMUX_CONFIG_ALT1),
101 IOMUX_MODE(MX31_PIN_PC_RW_B, IOMUX_CONFIG_ALT1),
102 /* USB Host2 reset */
103 IOMUX_MODE(MX31_PIN_USB_BYP, IOMUX_CONFIG_GPIO),
104 /* I2C1 */
105 MX31_PIN_I2C_CLK__I2C1_SCL,
106 MX31_PIN_I2C_DAT__I2C1_SDA,
107 /* SDHC1 */
108 MX31_PIN_SD1_DATA3__SD1_DATA3,
109 MX31_PIN_SD1_DATA2__SD1_DATA2,
110 MX31_PIN_SD1_DATA1__SD1_DATA1,
111 MX31_PIN_SD1_DATA0__SD1_DATA0,
112 MX31_PIN_SD1_CLK__SD1_CLK,
113 MX31_PIN_SD1_CMD__SD1_CMD,
114 MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
115 MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
116 /* Framebuffer */
117 MX31_PIN_LD0__LD0,
118 MX31_PIN_LD1__LD1,
119 MX31_PIN_LD2__LD2,
120 MX31_PIN_LD3__LD3,
121 MX31_PIN_LD4__LD4,
122 MX31_PIN_LD5__LD5,
123 MX31_PIN_LD6__LD6,
124 MX31_PIN_LD7__LD7,
125 MX31_PIN_LD8__LD8,
126 MX31_PIN_LD9__LD9,
127 MX31_PIN_LD10__LD10,
128 MX31_PIN_LD11__LD11,
129 MX31_PIN_LD12__LD12,
130 MX31_PIN_LD13__LD13,
131 MX31_PIN_LD14__LD14,
132 MX31_PIN_LD15__LD15,
133 MX31_PIN_LD16__LD16,
134 MX31_PIN_LD17__LD17,
135 MX31_PIN_VSYNC3__VSYNC3,
136 MX31_PIN_HSYNC__HSYNC,
137 MX31_PIN_FPSHIFT__FPSHIFT,
138 MX31_PIN_CONTRAST__CONTRAST,
139 /* CSI */
140 MX31_PIN_CSI_D6__CSI_D6,
141 MX31_PIN_CSI_D7__CSI_D7,
142 MX31_PIN_CSI_D8__CSI_D8,
143 MX31_PIN_CSI_D9__CSI_D9,
144 MX31_PIN_CSI_D10__CSI_D10,
145 MX31_PIN_CSI_D11__CSI_D11,
146 MX31_PIN_CSI_D12__CSI_D12,
147 MX31_PIN_CSI_D13__CSI_D13,
148 MX31_PIN_CSI_D14__CSI_D14,
149 MX31_PIN_CSI_D15__CSI_D15,
150 MX31_PIN_CSI_HSYNC__CSI_HSYNC,
151 MX31_PIN_CSI_MCLK__CSI_MCLK,
152 MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
153 MX31_PIN_CSI_VSYNC__CSI_VSYNC,
154 MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */
155 IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */
156 /* SSI */
157 MX31_PIN_STXD4__STXD4,
158 MX31_PIN_SRXD4__SRXD4,
159 MX31_PIN_SCK4__SCK4,
160 MX31_PIN_SFS4__SFS4,
161};
162
163/*
164 * Camera support
165 */
166static phys_addr_t mx3_camera_base __initdata;
167#define MX31_3DS_CAMERA_BUF_SIZE SZ_8M
168
169#define MX31_3DS_GPIO_CAMERA_PW IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
170#define MX31_3DS_GPIO_CAMERA_RST IOMUX_TO_GPIO(MX31_PIN_RI_DTE1)
171
172static struct gpio mx31_3ds_camera_gpios[] = {
173 { MX31_3DS_GPIO_CAMERA_PW, GPIOF_OUT_INIT_HIGH, "camera-power" },
174 { MX31_3DS_GPIO_CAMERA_RST, GPIOF_OUT_INIT_HIGH, "camera-reset" },
175};
176
177static const struct mx3_camera_pdata mx31_3ds_camera_pdata __initconst = {
178 .flags = MX3_CAMERA_DATAWIDTH_10,
179 .mclk_10khz = 2600,
180};
181
182static int __init mx31_3ds_init_camera(void)
183{
184 int dma, ret = -ENOMEM;
185 struct platform_device *pdev =
186 imx31_alloc_mx3_camera(&mx31_3ds_camera_pdata);
187
188 if (IS_ERR(pdev))
189 return PTR_ERR(pdev);
190
191 if (!mx3_camera_base)
192 goto err;
193
194 dma = dma_declare_coherent_memory(&pdev->dev,
195 mx3_camera_base, mx3_camera_base,
196 MX31_3DS_CAMERA_BUF_SIZE,
197 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
198
199 if (!(dma & DMA_MEMORY_MAP))
200 goto err;
201
202 ret = platform_device_add(pdev);
203 if (ret)
204err:
205 platform_device_put(pdev);
206
207 return ret;
208}
209
210static int mx31_3ds_camera_power(struct device *dev, int on)
211{
212 /* enable or disable the camera */
213 pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
214 gpio_set_value(MX31_3DS_GPIO_CAMERA_PW, on ? 0 : 1);
215
216 if (!on)
217 goto out;
218
219 /* If enabled, give a reset impulse */
220 gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 0);
221 msleep(20);
222 gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 1);
223 msleep(100);
224
225out:
226 return 0;
227}
228
229static struct i2c_board_info mx31_3ds_i2c_camera = {
230 I2C_BOARD_INFO("ov2640", 0x30),
231};
232
233static struct regulator_bulk_data mx31_3ds_camera_regs[] = {
234 { .supply = "cmos_vcore" },
235 { .supply = "cmos_2v8" },
236};
237
238static struct soc_camera_link iclink_ov2640 = {
239 .bus_id = 0,
240 .board_info = &mx31_3ds_i2c_camera,
241 .i2c_adapter_id = 0,
242 .power = mx31_3ds_camera_power,
243 .regulators = mx31_3ds_camera_regs,
244 .num_regulators = ARRAY_SIZE(mx31_3ds_camera_regs),
245};
246
247static struct platform_device mx31_3ds_ov2640 = {
248 .name = "soc-camera-pdrv",
249 .id = 0,
250 .dev = {
251 .platform_data = &iclink_ov2640,
252 },
253};
254
255/*
256 * FB support
257 */
258static const struct fb_videomode fb_modedb[] = {
259 { /* 480x640 @ 60 Hz */
260 .name = "Epson-VGA",
261 .refresh = 60,
262 .xres = 480,
263 .yres = 640,
264 .pixclock = 41701,
265 .left_margin = 20,
266 .right_margin = 41,
267 .upper_margin = 10,
268 .lower_margin = 5,
269 .hsync_len = 20,
270 .vsync_len = 10,
271 .sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_CLK_INVERT,
272 .vmode = FB_VMODE_NONINTERLACED,
273 .flag = 0,
274 },
275};
276
277static struct mx3fb_platform_data mx3fb_pdata __initdata = {
278 .name = "Epson-VGA",
279 .mode = fb_modedb,
280 .num_modes = ARRAY_SIZE(fb_modedb),
281};
282
283/* LCD */
284static struct l4f00242t03_pdata mx31_3ds_l4f00242t03_pdata = {
285 .reset_gpio = IOMUX_TO_GPIO(MX31_PIN_LCS1),
286 .data_enable_gpio = IOMUX_TO_GPIO(MX31_PIN_SER_RS),
287};
288
289/*
290 * Support for SD card slot in personality board
291 */
292#define MX31_3DS_GPIO_SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
293#define MX31_3DS_GPIO_SDHC1_BE IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
294
295static struct gpio mx31_3ds_sdhc1_gpios[] = {
296 { MX31_3DS_GPIO_SDHC1_CD, GPIOF_IN, "sdhc1-card-detect" },
297 { MX31_3DS_GPIO_SDHC1_BE, GPIOF_OUT_INIT_LOW, "sdhc1-bus-en" },
298};
299
300static int mx31_3ds_sdhc1_init(struct device *dev,
301 irq_handler_t detect_irq,
302 void *data)
303{
304 int ret;
305
306 ret = gpio_request_array(mx31_3ds_sdhc1_gpios,
307 ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
308 if (ret) {
309 pr_warning("Unable to request the SD/MMC GPIOs.\n");
310 return ret;
311 }
312
313 ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)),
314 detect_irq, IRQF_DISABLED |
315 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
316 "sdhc1-detect", data);
317 if (ret) {
318 pr_warning("Unable to request the SD/MMC card-detect IRQ.\n");
319 goto gpio_free;
320 }
321
322 return 0;
323
324gpio_free:
325 gpio_free_array(mx31_3ds_sdhc1_gpios,
326 ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
327 return ret;
328}
329
330static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
331{
332 free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)), data);
333 gpio_free_array(mx31_3ds_sdhc1_gpios,
334 ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
335}
336
337static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
338{
339 /*
340 * While the voltage stuff is done by the driver, activate the
341 * Buffer Enable Pin only if there is a card in slot to fix the card
342 * voltage issue caused by bi-directional chip TXB0108 on 3Stack.
343 * Done here because at this stage we have for sure a debounced value
344 * of the presence of the card, showed by the value of vdd.
345 * 7 == ilog2(MMC_VDD_165_195)
346 */
347 if (vdd > 7)
348 gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 1);
349 else
350 gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 0);
351}
352
353static struct imxmmc_platform_data sdhc1_pdata = {
354 .init = mx31_3ds_sdhc1_init,
355 .exit = mx31_3ds_sdhc1_exit,
356 .setpower = mx31_3ds_sdhc1_setpower,
357};
358
359/*
360 * Matrix keyboard
361 */
362
363static const uint32_t mx31_3ds_keymap[] = {
364 KEY(0, 0, KEY_UP),
365 KEY(0, 1, KEY_DOWN),
366 KEY(1, 0, KEY_RIGHT),
367 KEY(1, 1, KEY_LEFT),
368 KEY(1, 2, KEY_ENTER),
369 KEY(2, 0, KEY_F6),
370 KEY(2, 1, KEY_F8),
371 KEY(2, 2, KEY_F9),
372 KEY(2, 3, KEY_F10),
373};
374
375static const struct matrix_keymap_data mx31_3ds_keymap_data __initconst = {
376 .keymap = mx31_3ds_keymap,
377 .keymap_size = ARRAY_SIZE(mx31_3ds_keymap),
378};
379
380/* Regulators */
381static struct regulator_init_data pwgtx_init = {
382 .constraints = {
383 .boot_on = 1,
384 .always_on = 1,
385 },
386};
387
388static struct regulator_init_data gpo_init = {
389 .constraints = {
390 .boot_on = 1,
391 .always_on = 1,
392 }
393};
394
395static struct regulator_consumer_supply vmmc2_consumers[] = {
396 REGULATOR_SUPPLY("vmmc", "mxc-mmc.0"),
397};
398
399static struct regulator_init_data vmmc2_init = {
400 .constraints = {
401 .min_uV = 3000000,
402 .max_uV = 3000000,
403 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
404 REGULATOR_CHANGE_STATUS,
405 },
406 .num_consumer_supplies = ARRAY_SIZE(vmmc2_consumers),
407 .consumer_supplies = vmmc2_consumers,
408};
409
410static struct regulator_consumer_supply vmmc1_consumers[] = {
411 REGULATOR_SUPPLY("vcore", "spi0.0"),
412 REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
413};
414
415static struct regulator_init_data vmmc1_init = {
416 .constraints = {
417 .min_uV = 2800000,
418 .max_uV = 2800000,
419 .apply_uV = 1,
420 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
421 REGULATOR_CHANGE_STATUS,
422 },
423 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
424 .consumer_supplies = vmmc1_consumers,
425};
426
427static struct regulator_consumer_supply vgen_consumers[] = {
428 REGULATOR_SUPPLY("vdd", "spi0.0"),
429};
430
431static struct regulator_init_data vgen_init = {
432 .constraints = {
433 .min_uV = 1800000,
434 .max_uV = 1800000,
435 .apply_uV = 1,
436 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
437 REGULATOR_CHANGE_STATUS,
438 },
439 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
440 .consumer_supplies = vgen_consumers,
441};
442
443static struct regulator_consumer_supply vvib_consumers[] = {
444 REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
445};
446
447static struct regulator_init_data vvib_init = {
448 .constraints = {
449 .min_uV = 1300000,
450 .max_uV = 1300000,
451 .apply_uV = 1,
452 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
453 REGULATOR_CHANGE_STATUS,
454 },
455 .num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
456 .consumer_supplies = vvib_consumers,
457};
458
459static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
460 {
461 .id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
462 .init_data = &pwgtx_init,
463 }, {
464 .id = MC13783_REG_PWGT2SPI, /* Power Gate for L2 Cache. */
465 .init_data = &pwgtx_init,
466 }, {
467
468 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
469 .init_data = &gpo_init,
470 }, {
471 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
472 .init_data = &gpo_init,
473 }, {
474 .id = MC13783_REG_VMMC2, /* Power MMC/SD, WiFi/Bluetooth. */
475 .init_data = &vmmc2_init,
476 }, {
477 .id = MC13783_REG_VMMC1, /* Power LCD, CMOS, FM, GPS, Accel. */
478 .init_data = &vmmc1_init,
479 }, {
480 .id = MC13783_REG_VGEN, /* Power LCD */
481 .init_data = &vgen_init,
482 }, {
483 .id = MC13783_REG_VVIB, /* Power CMOS */
484 .init_data = &vvib_init,
485 },
486};
487
488/* MC13783 */
489static struct mc13xxx_codec_platform_data mx31_3ds_codec = {
490 .dac_ssi_port = MC13783_SSI1_PORT,
491 .adc_ssi_port = MC13783_SSI1_PORT,
492};
493
494static struct mc13xxx_platform_data mc13783_pdata = {
495 .regulators = {
496 .regulators = mx31_3ds_regulators,
497 .num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
498 },
499 .codec = &mx31_3ds_codec,
500 .flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC | MC13XXX_USE_CODEC,
501
502};
503
504static struct imx_ssi_platform_data mx31_3ds_ssi_pdata = {
505 .flags = IMX_SSI_DMA | IMX_SSI_NET,
506};
507
508/* SPI */
509static int spi0_internal_chipselect[] = {
510 MXC_SPI_CS(2),
511};
512
513static const struct spi_imx_master spi0_pdata __initconst = {
514 .chipselect = spi0_internal_chipselect,
515 .num_chipselect = ARRAY_SIZE(spi0_internal_chipselect),
516};
517
518static int spi1_internal_chipselect[] = {
519 MXC_SPI_CS(0),
520 MXC_SPI_CS(2),
521};
522
523static const struct spi_imx_master spi1_pdata __initconst = {
524 .chipselect = spi1_internal_chipselect,
525 .num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
526};
527
528static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
529 {
530 .modalias = "mc13783",
531 .max_speed_hz = 1000000,
532 .bus_num = 1,
533 .chip_select = 1, /* SS2 */
534 .platform_data = &mc13783_pdata,
535 /* irq number is run-time assigned */
536 .mode = SPI_CS_HIGH,
537 }, {
538 .modalias = "l4f00242t03",
539 .max_speed_hz = 5000000,
540 .bus_num = 0,
541 .chip_select = 0, /* SS2 */
542 .platform_data = &mx31_3ds_l4f00242t03_pdata,
543 },
544};
545
546/*
547 * NAND Flash
548 */
549static const struct mxc_nand_platform_data
550mx31_3ds_nand_board_info __initconst = {
551 .width = 1,
552 .hw_ecc = 1,
553#ifdef CONFIG_MACH_MX31_3DS_MXC_NAND_USE_BBT
554 .flash_bbt = 1,
555#endif
556};
557
558/*
559 * USB OTG
560 */
561
562#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
563 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
564
565#define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
566#define USBH2_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_BYP)
567
568static int mx31_3ds_usbotg_init(void)
569{
570 int err;
571
572 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
573 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
574 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
575 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
576 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
577 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
578 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
579 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
580 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
581 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
582 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
583 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
584
585 err = gpio_request(USBOTG_RST_B, "otgusb-reset");
586 if (err) {
587 pr_err("Failed to request the USB OTG reset gpio\n");
588 return err;
589 }
590
591 err = gpio_direction_output(USBOTG_RST_B, 0);
592 if (err) {
593 pr_err("Failed to drive the USB OTG reset gpio\n");
594 goto usbotg_free_reset;
595 }
596
597 mdelay(1);
598 gpio_set_value(USBOTG_RST_B, 1);
599 return 0;
600
601usbotg_free_reset:
602 gpio_free(USBOTG_RST_B);
603 return err;
604}
605
606static int mx31_3ds_otg_init(struct platform_device *pdev)
607{
608 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
609}
610
611static int mx31_3ds_host2_init(struct platform_device *pdev)
612{
613 int err;
614
615 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
616 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
617 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
618 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
619 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
620 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
621 mxc_iomux_set_pad(MX31_PIN_PC_VS2, USB_PAD_CFG);
622 mxc_iomux_set_pad(MX31_PIN_PC_BVD1, USB_PAD_CFG);
623 mxc_iomux_set_pad(MX31_PIN_PC_BVD2, USB_PAD_CFG);
624 mxc_iomux_set_pad(MX31_PIN_PC_RST, USB_PAD_CFG);
625 mxc_iomux_set_pad(MX31_PIN_IOIS16, USB_PAD_CFG);
626 mxc_iomux_set_pad(MX31_PIN_PC_RW_B, USB_PAD_CFG);
627
628 err = gpio_request(USBH2_RST_B, "usbh2-reset");
629 if (err) {
630 pr_err("Failed to request the USB Host 2 reset gpio\n");
631 return err;
632 }
633
634 err = gpio_direction_output(USBH2_RST_B, 0);
635 if (err) {
636 pr_err("Failed to drive the USB Host 2 reset gpio\n");
637 goto usbotg_free_reset;
638 }
639
640 mdelay(1);
641 gpio_set_value(USBH2_RST_B, 1);
642
643 mdelay(10);
644
645 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
646
647usbotg_free_reset:
648 gpio_free(USBH2_RST_B);
649 return err;
650}
651
652static struct mxc_usbh_platform_data otg_pdata __initdata = {
653 .init = mx31_3ds_otg_init,
654 .portsc = MXC_EHCI_MODE_ULPI,
655};
656
657static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
658 .init = mx31_3ds_host2_init,
659 .portsc = MXC_EHCI_MODE_ULPI,
660};
661
662static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
663 .operating_mode = FSL_USB2_DR_DEVICE,
664 .phy_mode = FSL_USB2_PHY_ULPI,
665};
666
667static bool otg_mode_host __initdata;
668
669static int __init mx31_3ds_otg_mode(char *options)
670{
671 if (!strcmp(options, "host"))
672 otg_mode_host = true;
673 else if (!strcmp(options, "device"))
674 otg_mode_host = false;
675 else
676 pr_info("otg_mode neither \"host\" nor \"device\". "
677 "Defaulting to device\n");
678 return 1;
679}
680__setup("otg_mode=", mx31_3ds_otg_mode);
681
682static const struct imxuart_platform_data uart_pdata __initconst = {
683 .flags = IMXUART_HAVE_RTSCTS,
684};
685
686static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
687 .bitrate = 100000,
688};
689
690static struct platform_device *devices[] __initdata = {
691 &mx31_3ds_ov2640,
692};
693
694static void __init mx31_3ds_init(void)
695{
696 int ret;
697
698 imx31_soc_init();
699
700 /* Configure SPI1 IOMUX */
701 mxc_iomux_set_gpr(MUX_PGP_CSPI_BB, true);
702
703 mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
704 "mx31_3ds");
705
706 imx31_add_imx_uart0(&uart_pdata);
707 imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
708
709 imx31_add_spi_imx1(&spi1_pdata);
710 mx31_3ds_spi_devs[0].irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
711 spi_register_board_info(mx31_3ds_spi_devs,
712 ARRAY_SIZE(mx31_3ds_spi_devs));
713
714 platform_add_devices(devices, ARRAY_SIZE(devices));
715
716 imx31_add_imx_keypad(&mx31_3ds_keymap_data);
717
718 mx31_3ds_usbotg_init();
719 if (otg_mode_host) {
720 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
721 ULPI_OTG_DRVVBUS_EXT);
722 if (otg_pdata.otg)
723 imx31_add_mxc_ehci_otg(&otg_pdata);
724 }
725 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
726 ULPI_OTG_DRVVBUS_EXT);
727 if (usbh2_pdata.otg)
728 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
729
730 if (!otg_mode_host)
731 imx31_add_fsl_usb2_udc(&usbotg_pdata);
732
733 if (mxc_expio_init(MX31_CS5_BASE_ADDR, IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)))
734 printk(KERN_WARNING "Init of the debug board failed, all "
735 "devices on the debug board are unusable.\n");
736 imx31_add_imx2_wdt();
737 imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
738 imx31_add_mxc_mmc(0, &sdhc1_pdata);
739
740 imx31_add_spi_imx0(&spi0_pdata);
741 imx31_add_ipu_core();
742 imx31_add_mx3_sdc_fb(&mx3fb_pdata);
743
744 /* CSI */
745 /* Camera power: default - off */
746 ret = gpio_request_array(mx31_3ds_camera_gpios,
747 ARRAY_SIZE(mx31_3ds_camera_gpios));
748 if (ret) {
749 pr_err("Failed to request camera gpios");
750 iclink_ov2640.power = NULL;
751 }
752
753 mx31_3ds_init_camera();
754
755 imx31_add_imx_ssi(0, &mx31_3ds_ssi_pdata);
756
757 imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
758}
759
760static void __init mx31_3ds_timer_init(void)
761{
762 mx31_clocks_init(26000000);
763}
764
765static struct sys_timer mx31_3ds_timer = {
766 .init = mx31_3ds_timer_init,
767};
768
769static void __init mx31_3ds_reserve(void)
770{
771 /* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
772 mx3_camera_base = arm_memblock_steal(MX31_3DS_CAMERA_BUF_SIZE,
773 MX31_3DS_CAMERA_BUF_SIZE);
774}
775
776MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
777 /* Maintainer: Freescale Semiconductor, Inc. */
778 .atag_offset = 0x100,
779 .map_io = mx31_map_io,
780 .init_early = imx31_init_early,
781 .init_irq = mx31_init_irq,
782 .handle_irq = imx31_handle_irq,
783 .timer = &mx31_3ds_timer,
784 .init_machine = mx31_3ds_init,
785 .reserve = mx31_3ds_reserve,
786 .restart = mxc_restart,
787MACHINE_END
Linux 6.x block layer and io_uring tree(s)