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Merge remote-tracking branch 's5p/for-next'
[linux-2.6/next.git] / arch / arm / mach-imx / mach-mx27_3ds.c
blob6fa6934ab1509b87642bd41158b01841e9b49d26
1 /*
2 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
3 *
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17 /*
18 * This machine is known as:
19 * - i.MX27 3-Stack Development System
20 * - i.MX27 Platform Development Kit (i.MX27 PDK)
21 */
22
23 #include <linux/platform_device.h>
24 #include <linux/gpio.h>
25 #include <linux/irq.h>
26 #include <linux/usb/otg.h>
27 #include <linux/usb/ulpi.h>
28 #include <linux/delay.h>
29 #include <linux/mfd/mc13783.h>
30 #include <linux/spi/spi.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/spi/l4f00242t03.h>
33
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/time.h>
37 #include <mach/hardware.h>
38 #include <mach/common.h>
39 #include <mach/iomux-mx27.h>
40 #include <mach/ulpi.h>
41 #include <mach/irqs.h>
42 #include <mach/3ds_debugboard.h>
43
44 #include "devices-imx27.h"
45
46 #define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
47 #define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
48 #define SPI2_SS0 IMX_GPIO_NR(4, 21)
49 #define EXPIO_PARENT_INT gpio_to_irq(IMX_GPIO_NR(3, 28))
50 #define PMIC_INT IMX_GPIO_NR(3, 14)
51 #define SPI1_SS0 IMX_GPIO_NR(4, 28)
52 #define SD1_CD IMX_GPIO_NR(2, 26)
53 #define LCD_RESET IMX_GPIO_NR(1, 3)
54 #define LCD_ENABLE IMX_GPIO_NR(1, 31)
55
56 static const int mx27pdk_pins[] __initconst = {
57 /* UART1 */
58 PE12_PF_UART1_TXD,
59 PE13_PF_UART1_RXD,
60 PE14_PF_UART1_CTS,
61 PE15_PF_UART1_RTS,
62 /* FEC */
63 PD0_AIN_FEC_TXD0,
64 PD1_AIN_FEC_TXD1,
65 PD2_AIN_FEC_TXD2,
66 PD3_AIN_FEC_TXD3,
67 PD4_AOUT_FEC_RX_ER,
68 PD5_AOUT_FEC_RXD1,
69 PD6_AOUT_FEC_RXD2,
70 PD7_AOUT_FEC_RXD3,
71 PD8_AF_FEC_MDIO,
72 PD9_AIN_FEC_MDC,
73 PD10_AOUT_FEC_CRS,
74 PD11_AOUT_FEC_TX_CLK,
75 PD12_AOUT_FEC_RXD0,
76 PD13_AOUT_FEC_RX_DV,
77 PD14_AOUT_FEC_RX_CLK,
78 PD15_AOUT_FEC_COL,
79 PD16_AIN_FEC_TX_ER,
80 PF23_AIN_FEC_TX_EN,
81 /* SDHC1 */
82 PE18_PF_SD1_D0,
83 PE19_PF_SD1_D1,
84 PE20_PF_SD1_D2,
85 PE21_PF_SD1_D3,
86 PE22_PF_SD1_CMD,
87 PE23_PF_SD1_CLK,
88 SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
89 /* OTG */
90 OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
91 PC7_PF_USBOTG_DATA5,
92 PC8_PF_USBOTG_DATA6,
93 PC9_PF_USBOTG_DATA0,
94 PC10_PF_USBOTG_DATA2,
95 PC11_PF_USBOTG_DATA1,
96 PC12_PF_USBOTG_DATA4,
97 PC13_PF_USBOTG_DATA3,
98 PE0_PF_USBOTG_NXT,
99 PE1_PF_USBOTG_STP,
100 PE2_PF_USBOTG_DIR,
101 PE24_PF_USBOTG_CLK,
102 PE25_PF_USBOTG_DATA7,
103 /* CSPI1 */
104 PD31_PF_CSPI1_MOSI,
105 PD30_PF_CSPI1_MISO,
106 PD29_PF_CSPI1_SCLK,
107 PD25_PF_CSPI1_RDY,
108 SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
109 /* CSPI2 */
110 PD22_PF_CSPI2_SCLK,
111 PD23_PF_CSPI2_MISO,
112 PD24_PF_CSPI2_MOSI,
113 SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
114 /* I2C1 */
115 PD17_PF_I2C_DATA,
116 PD18_PF_I2C_CLK,
117 /* PMIC INT */
118 PMIC_INT | GPIO_GPIO | GPIO_IN,
119 /* LCD */
120 PA5_PF_LSCLK,
121 PA6_PF_LD0,
122 PA7_PF_LD1,
123 PA8_PF_LD2,
124 PA9_PF_LD3,
125 PA10_PF_LD4,
126 PA11_PF_LD5,
127 PA12_PF_LD6,
128 PA13_PF_LD7,
129 PA14_PF_LD8,
130 PA15_PF_LD9,
131 PA16_PF_LD10,
132 PA17_PF_LD11,
133 PA18_PF_LD12,
134 PA19_PF_LD13,
135 PA20_PF_LD14,
136 PA21_PF_LD15,
137 PA22_PF_LD16,
138 PA23_PF_LD17,
139 PA28_PF_HSYNC,
140 PA29_PF_VSYNC,
141 PA30_PF_CONTRAST,
142 LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
143 LCD_RESET | GPIO_GPIO | GPIO_OUT,
144 };
145
146 static const struct imxuart_platform_data uart_pdata __initconst = {
147 .flags = IMXUART_HAVE_RTSCTS,
148 };
149
150 /*
151 * Matrix keyboard
152 */
153
154 static const uint32_t mx27_3ds_keymap[] = {
155 KEY(0, 0, KEY_UP),
156 KEY(0, 1, KEY_DOWN),
157 KEY(1, 0, KEY_RIGHT),
158 KEY(1, 1, KEY_LEFT),
159 KEY(1, 2, KEY_ENTER),
160 KEY(2, 0, KEY_F6),
161 KEY(2, 1, KEY_F8),
162 KEY(2, 2, KEY_F9),
163 KEY(2, 3, KEY_F10),
164 };
165
166 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
167 .keymap = mx27_3ds_keymap,
168 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
169 };
170
171 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
172 void *data)
173 {
174 return request_irq(gpio_to_irq(SD1_CD), detect_irq,
175 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
176 }
177
178 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
179 {
180 free_irq(gpio_to_irq(SD1_CD), data);
181 }
182
183 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
184 .init = mx27_3ds_sdhc1_init,
185 .exit = mx27_3ds_sdhc1_exit,
186 };
187
188 static void mx27_3ds_sdhc1_enable_level_translator(void)
189 {
190 /* Turn on TXB0108 OE pin */
191 gpio_request(SD1_EN_GPIO, "sd1_enable");
192 gpio_direction_output(SD1_EN_GPIO, 1);
193 }
194
195
196 static int otg_phy_init(void)
197 {
198 gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
199 gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
200 mdelay(1);
201 gpio_set_value(OTG_PHY_RESET_GPIO, 1);
202 return 0;
203 }
204
205 static int mx27_3ds_otg_init(struct platform_device *pdev)
206 {
207 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
208 }
209
210 static struct mxc_usbh_platform_data otg_pdata __initdata = {
211 .init = mx27_3ds_otg_init,
212 .portsc = MXC_EHCI_MODE_ULPI,
213 };
214
215 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
216 .operating_mode = FSL_USB2_DR_DEVICE,
217 .phy_mode = FSL_USB2_PHY_ULPI,
218 };
219
220 static int otg_mode_host;
221
222 static int __init mx27_3ds_otg_mode(char *options)
223 {
224 if (!strcmp(options, "host"))
225 otg_mode_host = 1;
226 else if (!strcmp(options, "device"))
227 otg_mode_host = 0;
228 else
229 pr_info("otg_mode neither \"host\" nor \"device\". "
230 "Defaulting to device\n");
231 return 0;
232 }
233 __setup("otg_mode=", mx27_3ds_otg_mode);
234
235 /* Regulators */
236 static struct regulator_init_data gpo_init = {
237 .constraints = {
238 .boot_on = 1,
239 .always_on = 1,
240 }
241 };
242
243 static struct regulator_consumer_supply vmmc1_consumers[] = {
244 REGULATOR_SUPPLY("lcd_2v8", NULL),
245 };
246
247 static struct regulator_init_data vmmc1_init = {
248 .constraints = {
249 .min_uV = 2800000,
250 .max_uV = 2800000,
251 .apply_uV = 1,
252 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
253 REGULATOR_CHANGE_STATUS,
254 },
255 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
256 .consumer_supplies = vmmc1_consumers,
257 };
258
259 static struct regulator_consumer_supply vgen_consumers[] = {
260 REGULATOR_SUPPLY("vdd_lcdio", NULL),
261 };
262
263 static struct regulator_init_data vgen_init = {
264 .constraints = {
265 .min_uV = 1800000,
266 .max_uV = 1800000,
267 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
268 },
269 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
270 .consumer_supplies = vgen_consumers,
271 };
272
273 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
274 {
275 .id = MC13783_REG_VMMC1,
276 .init_data = &vmmc1_init,
277 }, {
278 .id = MC13783_REG_VGEN,
279 .init_data = &vgen_init,
280 }, {
281 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
282 .init_data = &gpo_init,
283 }, {
284 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
285 .init_data = &gpo_init,
286 },
287 };
288
289 /* MC13783 */
290 static struct mc13xxx_platform_data mc13783_pdata = {
291 .regulators = {
292 .regulators = mx27_3ds_regulators,
293 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
294
295 },
296 .flags = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN |
297 MC13783_USE_RTC,
298 };
299
300 /* SPI */
301 static int spi1_chipselect[] = {SPI1_SS0};
302
303 static const struct spi_imx_master spi1_pdata __initconst = {
304 .chipselect = spi1_chipselect,
305 .num_chipselect = ARRAY_SIZE(spi1_chipselect),
306 };
307
308 static int spi2_chipselect[] = {SPI2_SS0};
309
310 static const struct spi_imx_master spi2_pdata __initconst = {
311 .chipselect = spi2_chipselect,
312 .num_chipselect = ARRAY_SIZE(spi2_chipselect),
313 };
314
315 static struct imx_fb_videomode mx27_3ds_modes[] = {
316 { /* 480x640 @ 60 Hz */
317 .mode = {
318 .name = "Epson-VGA",
319 .refresh = 60,
320 .xres = 480,
321 .yres = 640,
322 .pixclock = 41701,
323 .left_margin = 20,
324 .right_margin = 41,
325 .upper_margin = 10,
326 .lower_margin = 5,
327 .hsync_len = 20,
328 .vsync_len = 10,
329 .sync = FB_SYNC_OE_ACT_HIGH |
330 FB_SYNC_CLK_INVERT,
331 .vmode = FB_VMODE_NONINTERLACED,
332 .flag = 0,
333 },
334 .bpp = 16,
335 .pcr = 0xFAC08B82,
336 },
337 };
338
339 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
340 .mode = mx27_3ds_modes,
341 .num_modes = ARRAY_SIZE(mx27_3ds_modes),
342 .pwmr = 0x00A903FF,
343 .lscr1 = 0x00120300,
344 .dmacr = 0x00020010,
345 };
346
347 /* LCD */
348 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
349 .reset_gpio = LCD_RESET,
350 .data_enable_gpio = LCD_ENABLE,
351 .core_supply = "lcd_2v8",
352 .io_supply = "vdd_lcdio",
353 };
354
355 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
356 {
357 .modalias = "mc13783",
358 .max_speed_hz = 1000000,
359 .bus_num = 1,
360 .chip_select = 0, /* SS0 */
361 .platform_data = &mc13783_pdata,
362 .irq = gpio_to_irq(PMIC_INT),
363 .mode = SPI_CS_HIGH,
364 }, {
365 .modalias = "l4f00242t03",
366 .max_speed_hz = 5000000,
367 .bus_num = 0,
368 .chip_select = 0, /* SS0 */
369 .platform_data = &mx27_3ds_lcd_pdata,
370 },
371 };
372
373 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
374 .bitrate = 100000,
375 };
376
377 static void __init mx27pdk_init(void)
378 {
379 imx27_soc_init();
380
381 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
382 "mx27pdk");
383 mx27_3ds_sdhc1_enable_level_translator();
384 imx27_add_imx_uart0(&uart_pdata);
385 imx27_add_fec(NULL);
386 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
387 imx27_add_mxc_mmc(0, &sdhc1_pdata);
388 imx27_add_imx2_wdt(NULL);
389 otg_phy_init();
390
391 if (otg_mode_host) {
392 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
393 ULPI_OTG_DRVVBUS_EXT);
394
395 if (otg_pdata.otg)
396 imx27_add_mxc_ehci_otg(&otg_pdata);
397 }
398
399 if (!otg_mode_host)
400 imx27_add_fsl_usb2_udc(&otg_device_pdata);
401
402 imx27_add_spi_imx1(&spi2_pdata);
403 imx27_add_spi_imx0(&spi1_pdata);
404 spi_register_board_info(mx27_3ds_spi_devs,
405 ARRAY_SIZE(mx27_3ds_spi_devs));
406
407 if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
408 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
409 imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
410 imx27_add_imx_fb(&mx27_3ds_fb_data);
411 }
412
413 static void __init mx27pdk_timer_init(void)
414 {
415 mx27_clocks_init(26000000);
416 }
417
418 static struct sys_timer mx27pdk_timer = {
419 .init = mx27pdk_timer_init,
420 };
421
422 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
423 /* maintainer: Freescale Semiconductor, Inc. */
424 .boot_params = MX27_PHYS_OFFSET + 0x100,
425 .map_io = mx27_map_io,
426 .init_early = imx27_init_early,
427 .init_irq = mx27_init_irq,
428 .timer = &mx27pdk_timer,
429 .init_machine = mx27pdk_init,
430 MACHINE_END
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