Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind...
[linux-3.10.git] / arch / arm / mach-omap2 / board-omap3touchbook.c
1 /*
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: GrĂ©goire 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>
30 #include <linux/mmc/host.h>
31
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>
38 #include <linux/i2c/twl.h>
39
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>
51
52 #include "mux.h"
53 #include "hsmmc.h"
54 #include "timer-gp.h"
55
56 #include <asm/setup.h>
57
58 #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
65 static unsigned long touchbook_revision;
66
67 static 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
98 static 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
107 #include "sdram-micron-mt46h32m32lf-6.h"
108
109 static struct omap2_hsmmc_info mmc[] = {
110         {
111                 .mmc            = 1,
112                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
113                 .gpio_wp        = 29,
114         },
115         {}      /* Terminator */
116 };
117
118 static struct platform_device omap3_touchbook_lcd_device = {
119         .name           = "omap3touchbook_lcd",
120         .id             = -1,
121 };
122
123 static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
124         .ctrl_name      = "internal",
125 };
126
127 static struct regulator_consumer_supply touchbook_vmmc1_supply = {
128         .supply                 = "vmmc",
129 };
130
131 static struct regulator_consumer_supply touchbook_vsim_supply = {
132         .supply                 = "vmmc_aux",
133 };
134
135 static struct gpio_led gpio_leds[];
136
137 static 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;
148         omap2_hsmmc_init(mmc);
149
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
171 static 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
182 static struct regulator_consumer_supply touchbook_vdac_supply = {
183         .supply         = "vdac",
184         .dev            = &omap3_touchbook_lcd_device.dev,
185 };
186
187 static 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) */
193 static 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) */
208 static 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) */
223 static 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 */
237 static 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
251 static struct twl4030_usb_data touchbook_usb_data = {
252         .usb_mode       = T2_USB_MODE_ULPI,
253 };
254
255 static struct twl4030_codec_audio_data touchbook_audio_data;
256
257 static struct twl4030_codec_data touchbook_codec_data = {
258         .audio_mclk = 26000000,
259         .audio = &touchbook_audio_data,
260 };
261
262 static struct twl4030_platform_data touchbook_twldata = {
263         .irq_base       = TWL4030_IRQ_BASE,
264         .irq_end        = TWL4030_IRQ_END,
265
266         /* platform_data for children goes here */
267         .usb            = &touchbook_usb_data,
268         .gpio           = &touchbook_gpio_data,
269         .codec          = &touchbook_codec_data,
270         .vmmc1          = &touchbook_vmmc1,
271         .vsim           = &touchbook_vsim,
272         .vdac           = &touchbook_vdac,
273         .vpll2          = &touchbook_vpll2,
274 };
275
276 static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {
277         {
278                 I2C_BOARD_INFO("twl4030", 0x48),
279                 .flags = I2C_CLIENT_WAKE,
280                 .irq = INT_34XX_SYS_NIRQ,
281                 .platform_data = &touchbook_twldata,
282         },
283 };
284
285 static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
286         {
287                 I2C_BOARD_INFO("bq27200", 0x55),
288         },
289 };
290
291 static int __init omap3_touchbook_i2c_init(void)
292 {
293         /* Standard TouchBook bus */
294         omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,
295                         ARRAY_SIZE(touchbook_i2c_boardinfo));
296
297         /* Additional TouchBook bus */
298         omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
299                         ARRAY_SIZE(touchBook_i2c_boardinfo));
300
301         return 0;
302 }
303
304 static void __init omap3_ads7846_init(void)
305 {
306         if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
307                 printk(KERN_ERR "Failed to request GPIO %d for "
308                                 "ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
309                 return;
310         }
311
312         gpio_direction_input(OMAP3_TS_GPIO);
313         gpio_set_debounce(OMAP3_TS_GPIO, 310);
314 }
315
316 static struct ads7846_platform_data ads7846_config = {
317         .x_min                  = 100,
318         .y_min                  = 265,
319         .x_max                  = 3950,
320         .y_max                  = 3750,
321         .x_plate_ohms           = 40,
322         .pressure_max           = 255,
323         .debounce_max           = 10,
324         .debounce_tol           = 5,
325         .debounce_rep           = 1,
326         .gpio_pendown           = OMAP3_TS_GPIO,
327         .keep_vref_on           = 1,
328 };
329
330 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
331         .turbo_mode     = 0,
332         .single_channel = 1,    /* 0: slave, 1: master */
333 };
334
335 static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
336         {
337                 .modalias               = "ads7846",
338                 .bus_num                = 4,
339                 .chip_select            = 0,
340                 .max_speed_hz           = 1500000,
341                 .controller_data        = &ads7846_mcspi_config,
342                 .irq                    = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
343                 .platform_data          = &ads7846_config,
344         }
345 };
346
347 static struct gpio_led gpio_leds[] = {
348         {
349                 .name                   = "touchbook::usr0",
350                 .default_trigger        = "heartbeat",
351                 .gpio                   = 150,
352         },
353         {
354                 .name                   = "touchbook::usr1",
355                 .default_trigger        = "mmc0",
356                 .gpio                   = 149,
357         },
358         {
359                 .name                   = "touchbook::pmu_stat",
360                 .gpio                   = -EINVAL,      /* gets replaced */
361                 .active_low             = true,
362         },
363 };
364
365 static struct gpio_led_platform_data gpio_led_info = {
366         .leds           = gpio_leds,
367         .num_leds       = ARRAY_SIZE(gpio_leds),
368 };
369
370 static struct platform_device leds_gpio = {
371         .name   = "leds-gpio",
372         .id     = -1,
373         .dev    = {
374                 .platform_data  = &gpio_led_info,
375         },
376 };
377
378 static struct gpio_keys_button gpio_buttons[] = {
379         {
380                 .code                   = BTN_EXTRA,
381                 .gpio                   = 7,
382                 .desc                   = "user",
383                 .wakeup                 = 1,
384         },
385         {
386                 .code                   = KEY_POWER,
387                 .gpio                   = 183,
388                 .desc                   = "power",
389                 .wakeup                 = 1,
390         },
391 };
392
393 static struct gpio_keys_platform_data gpio_key_info = {
394         .buttons        = gpio_buttons,
395         .nbuttons       = ARRAY_SIZE(gpio_buttons),
396 };
397
398 static struct platform_device keys_gpio = {
399         .name   = "gpio-keys",
400         .id     = -1,
401         .dev    = {
402                 .platform_data  = &gpio_key_info,
403         },
404 };
405
406 static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
407         { OMAP_TAG_LCD,         &omap3_touchbook_lcd_config },
408 };
409
410 #ifdef CONFIG_OMAP_MUX
411 static struct omap_board_mux board_mux[] __initdata = {
412         { .reg_offset = OMAP_MUX_TERMINATOR },
413 };
414 #endif
415
416 static void __init omap3_touchbook_init_early(void)
417 {
418         omap2_init_common_infrastructure();
419         omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
420                                   mt46h32m32lf6_sdrc_params);
421 }
422
423 static void __init omap3_touchbook_init_irq(void)
424 {
425         omap_init_irq();
426 #ifdef CONFIG_OMAP_32K_TIMER
427         omap2_gp_clockevent_set_gptimer(12);
428 #endif
429 }
430
431 static struct platform_device *omap3_touchbook_devices[] __initdata = {
432         &omap3_touchbook_lcd_device,
433         &leds_gpio,
434         &keys_gpio,
435 };
436
437 static void __init omap3touchbook_flash_init(void)
438 {
439         u8 cs = 0;
440         u8 nandcs = GPMC_CS_NUM + 1;
441
442         /* find out the chip-select on which NAND exists */
443         while (cs < GPMC_CS_NUM) {
444                 u32 ret = 0;
445                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
446
447                 if ((ret & 0xC00) == 0x800) {
448                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
449                         if (nandcs > GPMC_CS_NUM)
450                                 nandcs = cs;
451                 }
452                 cs++;
453         }
454
455         if (nandcs > GPMC_CS_NUM) {
456                 printk(KERN_INFO "NAND: Unable to find configuration "
457                                  "in GPMC\n ");
458                 return;
459         }
460
461         if (nandcs < GPMC_CS_NUM) {
462                 omap3touchbook_nand_data.cs = nandcs;
463
464                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
465                 if (gpmc_nand_init(&omap3touchbook_nand_data) < 0)
466                         printk(KERN_ERR "Unable to register NAND device\n");
467         }
468 }
469
470 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
471
472         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
473         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
474         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
475
476         .phy_reset  = true,
477         .reset_gpio_port[0]  = -EINVAL,
478         .reset_gpio_port[1]  = 147,
479         .reset_gpio_port[2]  = -EINVAL
480 };
481
482 static void omap3_touchbook_poweroff(void)
483 {
484         int r;
485
486         r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset");
487         if (r < 0) {
488                 printk(KERN_ERR "Unable to get kill power GPIO\n");
489                 return;
490         }
491
492         gpio_direction_output(TB_KILL_POWER_GPIO, 0);
493 }
494
495 static int __init early_touchbook_revision(char *p)
496 {
497         if (!p)
498                 return 0;
499
500         return strict_strtoul(p, 10, &touchbook_revision);
501 }
502 early_param("tbr", early_touchbook_revision);
503
504 static struct omap_musb_board_data musb_board_data = {
505         .interface_type         = MUSB_INTERFACE_ULPI,
506         .mode                   = MUSB_OTG,
507         .power                  = 100,
508 };
509
510 static void __init omap3_touchbook_init(void)
511 {
512         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
513         omap_board_config = omap3_touchbook_config;
514         omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
515
516         pm_power_off = omap3_touchbook_poweroff;
517
518         omap3_touchbook_i2c_init();
519         platform_add_devices(omap3_touchbook_devices,
520                         ARRAY_SIZE(omap3_touchbook_devices));
521         omap_serial_init();
522
523         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
524         gpio_request(176, "DVI_nPD");
525         /* REVISIT leave DVI powered down until it's needed ... */
526         gpio_direction_output(176, true);
527
528         /* Touchscreen and accelerometer */
529         spi_register_board_info(omap3_ads7846_spi_board_info,
530                                 ARRAY_SIZE(omap3_ads7846_spi_board_info));
531         omap3_ads7846_init();
532         usb_musb_init(&musb_board_data);
533         usbhs_init(&usbhs_bdata);
534         omap3touchbook_flash_init();
535
536         /* Ensure SDRC pins are mux'd for self-refresh */
537         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
538         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
539 }
540
541 MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
542         /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
543         .boot_params    = 0x80000100,
544         .reserve        = omap_reserve,
545         .map_io         = omap3_map_io,
546         .init_early     = omap3_touchbook_init_early,
547         .init_irq       = omap3_touchbook_init_irq,
548         .init_machine   = omap3_touchbook_init,
549         .timer          = &omap_timer,
550 MACHINE_END