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Gregoire Gentil7a079ca2009-12-11 16:16:34 -08001/*
2 * linux/arch/arm/mach-omap2/board-omap3touchbook.c
3 *
4 * Copyright (C) 2009 Always Innovating
5 *
6 * Modified from mach-omap2/board-omap3beagleboard.c
7 *
8 * Initial code: Grégoire Gentil, Tim Yamin
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/platform_device.h>
18#include <linux/delay.h>
19#include <linux/err.h>
20#include <linux/clk.h>
21#include <linux/io.h>
22#include <linux/leds.h>
23#include <linux/gpio.h>
24#include <linux/input.h>
25#include <linux/gpio_keys.h>
26
27#include <linux/mtd/mtd.h>
28#include <linux/mtd/partitions.h>
29#include <linux/mtd/nand.h>
Sukumar Ghorai3a638332010-09-15 14:49:23 +000030#include <linux/mmc/host.h>
Gregoire Gentil7a079ca2009-12-11 16:16:34 -080031
32#include <plat/mcspi.h>
33#include <linux/spi/spi.h>
34
35#include <linux/spi/ads7846.h>
36
37#include <linux/regulator/machine.h>
Balaji T Kebeb53e2009-12-15 20:09:02 +053038#include <linux/i2c/twl.h>
Gregoire Gentil7a079ca2009-12-11 16:16:34 -080039
40#include <mach/hardware.h>
41#include <asm/mach-types.h>
42#include <asm/mach/arch.h>
43#include <asm/mach/map.h>
44#include <asm/mach/flash.h>
45
46#include <plat/board.h>
47#include <plat/common.h>
48#include <plat/gpmc.h>
49#include <plat/nand.h>
50#include <plat/usb.h>
Gregoire Gentil7a079ca2009-12-11 16:16:34 -080051
52#include "mux.h"
Adrian Hunterd02a900b2010-02-15 10:03:34 -080053#include "hsmmc.h"
Manjunath Kondaiah G04aeae72010-10-08 09:58:35 -070054#include "timer-gp.h"
Gregoire Gentil7a079ca2009-12-11 16:16:34 -080055
56#include <asm/setup.h>
57
Gregoire Gentil7a079ca2009-12-11 16:16:34 -080058#define NAND_BLOCK_SIZE SZ_128K
59
60#define OMAP3_AC_GPIO 136
61#define OMAP3_TS_GPIO 162
62#define TB_BL_PWM_TIMER 9
63#define TB_KILL_POWER_GPIO 168
64
Manjunath Kondaiah G38815732010-10-08 09:56:37 -070065static unsigned long touchbook_revision;
Gregoire Gentil7a079ca2009-12-11 16:16:34 -080066
67static struct mtd_partition omap3touchbook_nand_partitions[] = {
68 /* All the partition sizes are listed in terms of NAND block size */
69 {
70 .name = "X-Loader",
71 .offset = 0,
72 .size = 4 * NAND_BLOCK_SIZE,
73 .mask_flags = MTD_WRITEABLE, /* force read-only */
74 },
75 {
76 .name = "U-Boot",
77 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
78 .size = 15 * NAND_BLOCK_SIZE,
79 .mask_flags = MTD_WRITEABLE, /* force read-only */
80 },
81 {
82 .name = "U-Boot Env",
83 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
84 .size = 1 * NAND_BLOCK_SIZE,
85 },
86 {
87 .name = "Kernel",
88 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
89 .size = 32 * NAND_BLOCK_SIZE,
90 },
91 {
92 .name = "File System",
93 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
94 .size = MTDPART_SIZ_FULL,
95 },
96};
97
98static struct omap_nand_platform_data omap3touchbook_nand_data = {
99 .options = NAND_BUSWIDTH_16,
100 .parts = omap3touchbook_nand_partitions,
101 .nr_parts = ARRAY_SIZE(omap3touchbook_nand_partitions),
102 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
103 .nand_setup = NULL,
104 .dev_ready = NULL,
105};
106
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800107#include "sdram-micron-mt46h32m32lf-6.h"
108
Adrian Hunter68ff0422010-02-15 10:03:34 -0800109static struct omap2_hsmmc_info mmc[] = {
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800110 {
111 .mmc = 1,
Sukumar Ghorai3a638332010-09-15 14:49:23 +0000112 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800113 .gpio_wp = 29,
114 },
115 {} /* Terminator */
116};
117
118static struct platform_device omap3_touchbook_lcd_device = {
119 .name = "omap3touchbook_lcd",
120 .id = -1,
121};
122
123static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
124 .ctrl_name = "internal",
125};
126
127static struct regulator_consumer_supply touchbook_vmmc1_supply = {
128 .supply = "vmmc",
129};
130
131static struct regulator_consumer_supply touchbook_vsim_supply = {
132 .supply = "vmmc_aux",
133};
134
135static struct gpio_led gpio_leds[];
136
137static int touchbook_twl_gpio_setup(struct device *dev,
138 unsigned gpio, unsigned ngpio)
139{
140 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
141 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
142 mmc[0].gpio_wp = 23;
143 } else {
144 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
145 }
146 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
147 mmc[0].gpio_cd = gpio + 0;
Adrian Hunter68ff0422010-02-15 10:03:34 -0800148 omap2_hsmmc_init(mmc);
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800149
150 /* link regulators to MMC adapters */
151 touchbook_vmmc1_supply.dev = mmc[0].dev;
152 touchbook_vsim_supply.dev = mmc[0].dev;
153
154 /* REVISIT: need ehci-omap hooks for external VBUS
155 * power switch and overcurrent detect
156 */
157
158 gpio_request(gpio + 1, "EHCI_nOC");
159 gpio_direction_input(gpio + 1);
160
161 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
162 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
163 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
164
165 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
166 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
167
168 return 0;
169}
170
171static struct twl4030_gpio_platform_data touchbook_gpio_data = {
172 .gpio_base = OMAP_MAX_GPIO_LINES,
173 .irq_base = TWL4030_GPIO_IRQ_BASE,
174 .irq_end = TWL4030_GPIO_IRQ_END,
175 .use_leds = true,
176 .pullups = BIT(1),
177 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
178 | BIT(15) | BIT(16) | BIT(17),
179 .setup = touchbook_twl_gpio_setup,
180};
181
182static struct regulator_consumer_supply touchbook_vdac_supply = {
183 .supply = "vdac",
184 .dev = &omap3_touchbook_lcd_device.dev,
185};
186
187static struct regulator_consumer_supply touchbook_vdvi_supply = {
188 .supply = "vdvi",
189 .dev = &omap3_touchbook_lcd_device.dev,
190};
191
192/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
193static struct regulator_init_data touchbook_vmmc1 = {
194 .constraints = {
195 .min_uV = 1850000,
196 .max_uV = 3150000,
197 .valid_modes_mask = REGULATOR_MODE_NORMAL
198 | REGULATOR_MODE_STANDBY,
199 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
200 | REGULATOR_CHANGE_MODE
201 | REGULATOR_CHANGE_STATUS,
202 },
203 .num_consumer_supplies = 1,
204 .consumer_supplies = &touchbook_vmmc1_supply,
205};
206
207/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
208static struct regulator_init_data touchbook_vsim = {
209 .constraints = {
210 .min_uV = 1800000,
211 .max_uV = 3000000,
212 .valid_modes_mask = REGULATOR_MODE_NORMAL
213 | REGULATOR_MODE_STANDBY,
214 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
215 | REGULATOR_CHANGE_MODE
216 | REGULATOR_CHANGE_STATUS,
217 },
218 .num_consumer_supplies = 1,
219 .consumer_supplies = &touchbook_vsim_supply,
220};
221
222/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
223static struct regulator_init_data touchbook_vdac = {
224 .constraints = {
225 .min_uV = 1800000,
226 .max_uV = 1800000,
227 .valid_modes_mask = REGULATOR_MODE_NORMAL
228 | REGULATOR_MODE_STANDBY,
229 .valid_ops_mask = REGULATOR_CHANGE_MODE
230 | REGULATOR_CHANGE_STATUS,
231 },
232 .num_consumer_supplies = 1,
233 .consumer_supplies = &touchbook_vdac_supply,
234};
235
236/* VPLL2 for digital video outputs */
237static struct regulator_init_data touchbook_vpll2 = {
238 .constraints = {
239 .name = "VDVI",
240 .min_uV = 1800000,
241 .max_uV = 1800000,
242 .valid_modes_mask = REGULATOR_MODE_NORMAL
243 | REGULATOR_MODE_STANDBY,
244 .valid_ops_mask = REGULATOR_CHANGE_MODE
245 | REGULATOR_CHANGE_STATUS,
246 },
247 .num_consumer_supplies = 1,
248 .consumer_supplies = &touchbook_vdvi_supply,
249};
250
251static struct twl4030_usb_data touchbook_usb_data = {
252 .usb_mode = T2_USB_MODE_ULPI,
253};
254
255static struct twl4030_codec_audio_data touchbook_audio_data = {
256 .audio_mclk = 26000000,
257};
258
259static struct twl4030_codec_data touchbook_codec_data = {
260 .audio_mclk = 26000000,
261 .audio = &touchbook_audio_data,
262};
263
264static struct twl4030_platform_data touchbook_twldata = {
265 .irq_base = TWL4030_IRQ_BASE,
266 .irq_end = TWL4030_IRQ_END,
267
268 /* platform_data for children goes here */
269 .usb = &touchbook_usb_data,
270 .gpio = &touchbook_gpio_data,
271 .codec = &touchbook_codec_data,
272 .vmmc1 = &touchbook_vmmc1,
273 .vsim = &touchbook_vsim,
274 .vdac = &touchbook_vdac,
275 .vpll2 = &touchbook_vpll2,
276};
277
278static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {
279 {
280 I2C_BOARD_INFO("twl4030", 0x48),
281 .flags = I2C_CLIENT_WAKE,
282 .irq = INT_34XX_SYS_NIRQ,
283 .platform_data = &touchbook_twldata,
284 },
285};
286
287static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
288 {
289 I2C_BOARD_INFO("bq27200", 0x55),
290 },
291};
292
293static int __init omap3_touchbook_i2c_init(void)
294{
295 /* Standard TouchBook bus */
296 omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,
297 ARRAY_SIZE(touchbook_i2c_boardinfo));
298
299 /* Additional TouchBook bus */
300 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
301 ARRAY_SIZE(touchBook_i2c_boardinfo));
302
303 return 0;
304}
305
306static void __init omap3_ads7846_init(void)
307{
308 if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
309 printk(KERN_ERR "Failed to request GPIO %d for "
310 "ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
311 return;
312 }
313
314 gpio_direction_input(OMAP3_TS_GPIO);
Felipe Balbi48feb332010-05-26 14:42:24 -0700315 gpio_set_debounce(OMAP3_TS_GPIO, 310);
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800316}
317
318static struct ads7846_platform_data ads7846_config = {
319 .x_min = 100,
320 .y_min = 265,
321 .x_max = 3950,
322 .y_max = 3750,
323 .x_plate_ohms = 40,
324 .pressure_max = 255,
325 .debounce_max = 10,
326 .debounce_tol = 5,
327 .debounce_rep = 1,
328 .gpio_pendown = OMAP3_TS_GPIO,
329 .keep_vref_on = 1,
330};
331
332static struct omap2_mcspi_device_config ads7846_mcspi_config = {
333 .turbo_mode = 0,
334 .single_channel = 1, /* 0: slave, 1: master */
335};
336
337static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
338 {
339 .modalias = "ads7846",
340 .bus_num = 4,
341 .chip_select = 0,
342 .max_speed_hz = 1500000,
343 .controller_data = &ads7846_mcspi_config,
344 .irq = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
345 .platform_data = &ads7846_config,
346 }
347};
348
349static struct gpio_led gpio_leds[] = {
350 {
351 .name = "touchbook::usr0",
352 .default_trigger = "heartbeat",
353 .gpio = 150,
354 },
355 {
356 .name = "touchbook::usr1",
357 .default_trigger = "mmc0",
358 .gpio = 149,
359 },
360 {
361 .name = "touchbook::pmu_stat",
362 .gpio = -EINVAL, /* gets replaced */
363 .active_low = true,
364 },
365};
366
367static struct gpio_led_platform_data gpio_led_info = {
368 .leds = gpio_leds,
369 .num_leds = ARRAY_SIZE(gpio_leds),
370};
371
372static struct platform_device leds_gpio = {
373 .name = "leds-gpio",
374 .id = -1,
375 .dev = {
376 .platform_data = &gpio_led_info,
377 },
378};
379
380static struct gpio_keys_button gpio_buttons[] = {
381 {
382 .code = BTN_EXTRA,
383 .gpio = 7,
384 .desc = "user",
385 .wakeup = 1,
386 },
387 {
388 .code = KEY_POWER,
389 .gpio = 183,
390 .desc = "power",
391 .wakeup = 1,
392 },
393};
394
395static struct gpio_keys_platform_data gpio_key_info = {
396 .buttons = gpio_buttons,
397 .nbuttons = ARRAY_SIZE(gpio_buttons),
398};
399
400static struct platform_device keys_gpio = {
401 .name = "gpio-keys",
402 .id = -1,
403 .dev = {
404 .platform_data = &gpio_key_info,
405 },
406};
407
408static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
409 { OMAP_TAG_LCD, &omap3_touchbook_lcd_config },
410};
411
412#ifdef CONFIG_OMAP_MUX
413static struct omap_board_mux board_mux[] __initdata = {
414 { .reg_offset = OMAP_MUX_TERMINATOR },
415};
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800416#endif
417
Russell King - ARM Linux3dc3bad2011-02-14 15:40:20 -0800418static void __init omap3_touchbook_init_early(void)
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800419{
Paul Walmsley48057342010-12-21 15:25:10 -0700420 omap2_init_common_infrastructure();
421 omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
422 mt46h32m32lf6_sdrc_params);
Russell King - ARM Linux3dc3bad2011-02-14 15:40:20 -0800423}
424
425static void __init omap3_touchbook_init_irq(void)
426{
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800427 omap_init_irq();
428#ifdef CONFIG_OMAP_32K_TIMER
429 omap2_gp_clockevent_set_gptimer(12);
430#endif
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800431}
432
433static struct platform_device *omap3_touchbook_devices[] __initdata = {
434 &omap3_touchbook_lcd_device,
435 &leds_gpio,
436 &keys_gpio,
437};
438
439static void __init omap3touchbook_flash_init(void)
440{
441 u8 cs = 0;
442 u8 nandcs = GPMC_CS_NUM + 1;
443
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800444 /* find out the chip-select on which NAND exists */
445 while (cs < GPMC_CS_NUM) {
446 u32 ret = 0;
447 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
448
449 if ((ret & 0xC00) == 0x800) {
450 printk(KERN_INFO "Found NAND on CS%d\n", cs);
451 if (nandcs > GPMC_CS_NUM)
452 nandcs = cs;
453 }
454 cs++;
455 }
456
457 if (nandcs > GPMC_CS_NUM) {
458 printk(KERN_INFO "NAND: Unable to find configuration "
459 "in GPMC\n ");
460 return;
461 }
462
463 if (nandcs < GPMC_CS_NUM) {
464 omap3touchbook_nand_data.cs = nandcs;
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800465
466 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
Sukumar Ghoraif450d862010-07-09 09:14:46 +0000467 if (gpmc_nand_init(&omap3touchbook_nand_data) < 0)
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800468 printk(KERN_ERR "Unable to register NAND device\n");
469 }
470}
471
Felipe Balbi6f69a182010-03-04 09:45:53 +0200472static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800473
474 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
475 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
476 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
477
478 .phy_reset = true,
479 .reset_gpio_port[0] = -EINVAL,
480 .reset_gpio_port[1] = 147,
481 .reset_gpio_port[2] = -EINVAL
482};
483
484static void omap3_touchbook_poweroff(void)
485{
486 int r;
487
488 r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset");
489 if (r < 0) {
490 printk(KERN_ERR "Unable to get kill power GPIO\n");
491 return;
492 }
493
494 gpio_direction_output(TB_KILL_POWER_GPIO, 0);
495}
496
Tony Lindgrend2197e12010-03-09 14:59:48 -0800497static int __init early_touchbook_revision(char *p)
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800498{
Tony Lindgrend2197e12010-03-09 14:59:48 -0800499 if (!p)
500 return 0;
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800501
Tony Lindgrend2197e12010-03-09 14:59:48 -0800502 return strict_strtoul(p, 10, &touchbook_revision);
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800503}
Tony Lindgrend2197e12010-03-09 14:59:48 -0800504early_param("tbr", early_touchbook_revision);
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800505
Maulik Mankad884b83692010-02-17 14:09:30 -0800506static struct omap_musb_board_data musb_board_data = {
507 .interface_type = MUSB_INTERFACE_ULPI,
508 .mode = MUSB_OTG,
509 .power = 100,
510};
511
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800512static void __init omap3_touchbook_init(void)
513{
Radek Pilař (Mrkva)e0530462011-02-24 19:02:49 +0100514 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
Tony Lindgrene41cccf2011-02-24 14:36:03 -0800515 omap_board_config = omap3_touchbook_config;
516 omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
517
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800518 pm_power_off = omap3_touchbook_poweroff;
519
520 omap3_touchbook_i2c_init();
521 platform_add_devices(omap3_touchbook_devices,
522 ARRAY_SIZE(omap3_touchbook_devices));
523 omap_serial_init();
524
525 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
526 gpio_request(176, "DVI_nPD");
527 /* REVISIT leave DVI powered down until it's needed ... */
528 gpio_direction_output(176, true);
529
530 /* Touchscreen and accelerometer */
531 spi_register_board_info(omap3_ads7846_spi_board_info,
532 ARRAY_SIZE(omap3_ads7846_spi_board_info));
533 omap3_ads7846_init();
Maulik Mankad884b83692010-02-17 14:09:30 -0800534 usb_musb_init(&musb_board_data);
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800535 usb_ehci_init(&ehci_pdata);
536 omap3touchbook_flash_init();
537
538 /* Ensure SDRC pins are mux'd for self-refresh */
539 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
540 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
541}
542
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800543MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
544 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800545 .boot_params = 0x80000100,
Russell King71ee7da2010-05-23 10:18:16 +0100546 .reserve = omap_reserve,
Russell King - ARM Linux3dc3bad2011-02-14 15:40:20 -0800547 .map_io = omap3_map_io,
548 .init_early = omap3_touchbook_init_early,
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800549 .init_irq = omap3_touchbook_init_irq,
550 .init_machine = omap3_touchbook_init,
551 .timer = &omap_timer,
552MACHINE_END