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-rw-r--r--arch/arm/mach-omap2/board-omap3touchbook.c572
1 files changed, 572 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
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index 000000000000..c9e5ebb4d91d
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+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
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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: 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>
30
31#include <plat/mcspi.h>
32#include <linux/spi/spi.h>
33
34#include <linux/spi/ads7846.h>
35
36#include <linux/regulator/machine.h>
37#include <linux/i2c/twl4030.h>
38
39#include <mach/hardware.h>
40#include <asm/mach-types.h>
41#include <asm/mach/arch.h>
42#include <asm/mach/map.h>
43#include <asm/mach/flash.h>
44
45#include <plat/board.h>
46#include <plat/common.h>
47#include <plat/gpmc.h>
48#include <plat/nand.h>
49#include <plat/usb.h>
50#include <plat/timer-gp.h>
51
52#include "mux.h"
53#include "mmc-twl4030.h"
54
55#include <asm/setup.h>
56
57#define GPMC_CS0_BASE 0x60
58#define GPMC_CS_SIZE 0x30
59
60#define NAND_BLOCK_SIZE SZ_128K
61
62#define OMAP3_AC_GPIO 136
63#define OMAP3_TS_GPIO 162
64#define TB_BL_PWM_TIMER 9
65#define TB_KILL_POWER_GPIO 168
66
67unsigned long touchbook_revision;
68
69static struct mtd_partition omap3touchbook_nand_partitions[] = {
70 /* All the partition sizes are listed in terms of NAND block size */
71 {
72 .name = "X-Loader",
73 .offset = 0,
74 .size = 4 * NAND_BLOCK_SIZE,
75 .mask_flags = MTD_WRITEABLE, /* force read-only */
76 },
77 {
78 .name = "U-Boot",
79 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
80 .size = 15 * NAND_BLOCK_SIZE,
81 .mask_flags = MTD_WRITEABLE, /* force read-only */
82 },
83 {
84 .name = "U-Boot Env",
85 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
86 .size = 1 * NAND_BLOCK_SIZE,
87 },
88 {
89 .name = "Kernel",
90 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
91 .size = 32 * NAND_BLOCK_SIZE,
92 },
93 {
94 .name = "File System",
95 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
96 .size = MTDPART_SIZ_FULL,
97 },
98};
99
100static struct omap_nand_platform_data omap3touchbook_nand_data = {
101 .options = NAND_BUSWIDTH_16,
102 .parts = omap3touchbook_nand_partitions,
103 .nr_parts = ARRAY_SIZE(omap3touchbook_nand_partitions),
104 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
105 .nand_setup = NULL,
106 .dev_ready = NULL,
107};
108
109static struct resource omap3touchbook_nand_resource = {
110 .flags = IORESOURCE_MEM,
111};
112
113static struct platform_device omap3touchbook_nand_device = {
114 .name = "omap2-nand",
115 .id = -1,
116 .dev = {
117 .platform_data = &omap3touchbook_nand_data,
118 },
119 .num_resources = 1,
120 .resource = &omap3touchbook_nand_resource,
121};
122
123#include "sdram-micron-mt46h32m32lf-6.h"
124
125static struct twl4030_hsmmc_info mmc[] = {
126 {
127 .mmc = 1,
128 .wires = 8,
129 .gpio_wp = 29,
130 },
131 {} /* Terminator */
132};
133
134static struct platform_device omap3_touchbook_lcd_device = {
135 .name = "omap3touchbook_lcd",
136 .id = -1,
137};
138
139static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
140 .ctrl_name = "internal",
141};
142
143static struct regulator_consumer_supply touchbook_vmmc1_supply = {
144 .supply = "vmmc",
145};
146
147static struct regulator_consumer_supply touchbook_vsim_supply = {
148 .supply = "vmmc_aux",
149};
150
151static struct gpio_led gpio_leds[];
152
153static int touchbook_twl_gpio_setup(struct device *dev,
154 unsigned gpio, unsigned ngpio)
155{
156 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
157 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
158 mmc[0].gpio_wp = 23;
159 } else {
160 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
161 }
162 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
163 mmc[0].gpio_cd = gpio + 0;
164 twl4030_mmc_init(mmc);
165
166 /* link regulators to MMC adapters */
167 touchbook_vmmc1_supply.dev = mmc[0].dev;
168 touchbook_vsim_supply.dev = mmc[0].dev;
169
170 /* REVISIT: need ehci-omap hooks for external VBUS
171 * power switch and overcurrent detect
172 */
173
174 gpio_request(gpio + 1, "EHCI_nOC");
175 gpio_direction_input(gpio + 1);
176
177 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
178 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
179 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
180
181 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
182 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
183
184 return 0;
185}
186
187static struct twl4030_gpio_platform_data touchbook_gpio_data = {
188 .gpio_base = OMAP_MAX_GPIO_LINES,
189 .irq_base = TWL4030_GPIO_IRQ_BASE,
190 .irq_end = TWL4030_GPIO_IRQ_END,
191 .use_leds = true,
192 .pullups = BIT(1),
193 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
194 | BIT(15) | BIT(16) | BIT(17),
195 .setup = touchbook_twl_gpio_setup,
196};
197
198static struct regulator_consumer_supply touchbook_vdac_supply = {
199 .supply = "vdac",
200 .dev = &omap3_touchbook_lcd_device.dev,
201};
202
203static struct regulator_consumer_supply touchbook_vdvi_supply = {
204 .supply = "vdvi",
205 .dev = &omap3_touchbook_lcd_device.dev,
206};
207
208/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
209static struct regulator_init_data touchbook_vmmc1 = {
210 .constraints = {
211 .min_uV = 1850000,
212 .max_uV = 3150000,
213 .valid_modes_mask = REGULATOR_MODE_NORMAL
214 | REGULATOR_MODE_STANDBY,
215 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
216 | REGULATOR_CHANGE_MODE
217 | REGULATOR_CHANGE_STATUS,
218 },
219 .num_consumer_supplies = 1,
220 .consumer_supplies = &touchbook_vmmc1_supply,
221};
222
223/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
224static struct regulator_init_data touchbook_vsim = {
225 .constraints = {
226 .min_uV = 1800000,
227 .max_uV = 3000000,
228 .valid_modes_mask = REGULATOR_MODE_NORMAL
229 | REGULATOR_MODE_STANDBY,
230 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
231 | REGULATOR_CHANGE_MODE
232 | REGULATOR_CHANGE_STATUS,
233 },
234 .num_consumer_supplies = 1,
235 .consumer_supplies = &touchbook_vsim_supply,
236};
237
238/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
239static struct regulator_init_data touchbook_vdac = {
240 .constraints = {
241 .min_uV = 1800000,
242 .max_uV = 1800000,
243 .valid_modes_mask = REGULATOR_MODE_NORMAL
244 | REGULATOR_MODE_STANDBY,
245 .valid_ops_mask = REGULATOR_CHANGE_MODE
246 | REGULATOR_CHANGE_STATUS,
247 },
248 .num_consumer_supplies = 1,
249 .consumer_supplies = &touchbook_vdac_supply,
250};
251
252/* VPLL2 for digital video outputs */
253static struct regulator_init_data touchbook_vpll2 = {
254 .constraints = {
255 .name = "VDVI",
256 .min_uV = 1800000,
257 .max_uV = 1800000,
258 .valid_modes_mask = REGULATOR_MODE_NORMAL
259 | REGULATOR_MODE_STANDBY,
260 .valid_ops_mask = REGULATOR_CHANGE_MODE
261 | REGULATOR_CHANGE_STATUS,
262 },
263 .num_consumer_supplies = 1,
264 .consumer_supplies = &touchbook_vdvi_supply,
265};
266
267static struct twl4030_usb_data touchbook_usb_data = {
268 .usb_mode = T2_USB_MODE_ULPI,
269};
270
271static struct twl4030_codec_audio_data touchbook_audio_data = {
272 .audio_mclk = 26000000,
273};
274
275static struct twl4030_codec_data touchbook_codec_data = {
276 .audio_mclk = 26000000,
277 .audio = &touchbook_audio_data,
278};
279
280static struct twl4030_platform_data touchbook_twldata = {
281 .irq_base = TWL4030_IRQ_BASE,
282 .irq_end = TWL4030_IRQ_END,
283
284 /* platform_data for children goes here */
285 .usb = &touchbook_usb_data,
286 .gpio = &touchbook_gpio_data,
287 .codec = &touchbook_codec_data,
288 .vmmc1 = &touchbook_vmmc1,
289 .vsim = &touchbook_vsim,
290 .vdac = &touchbook_vdac,
291 .vpll2 = &touchbook_vpll2,
292};
293
294static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {
295 {
296 I2C_BOARD_INFO("twl4030", 0x48),
297 .flags = I2C_CLIENT_WAKE,
298 .irq = INT_34XX_SYS_NIRQ,
299 .platform_data = &touchbook_twldata,
300 },
301};
302
303static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
304 {
305 I2C_BOARD_INFO("bq27200", 0x55),
306 },
307};
308
309static int __init omap3_touchbook_i2c_init(void)
310{
311 /* Standard TouchBook bus */
312 omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,
313 ARRAY_SIZE(touchbook_i2c_boardinfo));
314
315 /* Additional TouchBook bus */
316 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
317 ARRAY_SIZE(touchBook_i2c_boardinfo));
318
319 return 0;
320}
321
322static void __init omap3_ads7846_init(void)
323{
324 if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
325 printk(KERN_ERR "Failed to request GPIO %d for "
326 "ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
327 return;
328 }
329
330 gpio_direction_input(OMAP3_TS_GPIO);
331 omap_set_gpio_debounce(OMAP3_TS_GPIO, 1);
332 omap_set_gpio_debounce_time(OMAP3_TS_GPIO, 0xa);
333}
334
335static struct ads7846_platform_data ads7846_config = {
336 .x_min = 100,
337 .y_min = 265,
338 .x_max = 3950,
339 .y_max = 3750,
340 .x_plate_ohms = 40,
341 .pressure_max = 255,
342 .debounce_max = 10,
343 .debounce_tol = 5,
344 .debounce_rep = 1,
345 .gpio_pendown = OMAP3_TS_GPIO,
346 .keep_vref_on = 1,
347};
348
349static struct omap2_mcspi_device_config ads7846_mcspi_config = {
350 .turbo_mode = 0,
351 .single_channel = 1, /* 0: slave, 1: master */
352};
353
354static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
355 {
356 .modalias = "ads7846",
357 .bus_num = 4,
358 .chip_select = 0,
359 .max_speed_hz = 1500000,
360 .controller_data = &ads7846_mcspi_config,
361 .irq = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
362 .platform_data = &ads7846_config,
363 }
364};
365
366static struct gpio_led gpio_leds[] = {
367 {
368 .name = "touchbook::usr0",
369 .default_trigger = "heartbeat",
370 .gpio = 150,
371 },
372 {
373 .name = "touchbook::usr1",
374 .default_trigger = "mmc0",
375 .gpio = 149,
376 },
377 {
378 .name = "touchbook::pmu_stat",
379 .gpio = -EINVAL, /* gets replaced */
380 .active_low = true,
381 },
382};
383
384static struct gpio_led_platform_data gpio_led_info = {
385 .leds = gpio_leds,
386 .num_leds = ARRAY_SIZE(gpio_leds),
387};
388
389static struct platform_device leds_gpio = {
390 .name = "leds-gpio",
391 .id = -1,
392 .dev = {
393 .platform_data = &gpio_led_info,
394 },
395};
396
397static struct gpio_keys_button gpio_buttons[] = {
398 {
399 .code = BTN_EXTRA,
400 .gpio = 7,
401 .desc = "user",
402 .wakeup = 1,
403 },
404 {
405 .code = KEY_POWER,
406 .gpio = 183,
407 .desc = "power",
408 .wakeup = 1,
409 },
410};
411
412static struct gpio_keys_platform_data gpio_key_info = {
413 .buttons = gpio_buttons,
414 .nbuttons = ARRAY_SIZE(gpio_buttons),
415};
416
417static struct platform_device keys_gpio = {
418 .name = "gpio-keys",
419 .id = -1,
420 .dev = {
421 .platform_data = &gpio_key_info,
422 },
423};
424
425static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
426 { OMAP_TAG_LCD, &omap3_touchbook_lcd_config },
427};
428
429#ifdef CONFIG_OMAP_MUX
430static struct omap_board_mux board_mux[] __initdata = {
431 { .reg_offset = OMAP_MUX_TERMINATOR },
432};
433#else
434#define board_mux NULL
435#endif
436
437static void __init omap3_touchbook_init_irq(void)
438{
439 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
440 omap_board_config = omap3_touchbook_config;
441 omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
442 omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
443 mt46h32m32lf6_sdrc_params);
444 omap_init_irq();
445#ifdef CONFIG_OMAP_32K_TIMER
446 omap2_gp_clockevent_set_gptimer(12);
447#endif
448 omap_gpio_init();
449}
450
451static struct platform_device *omap3_touchbook_devices[] __initdata = {
452 &omap3_touchbook_lcd_device,
453 &leds_gpio,
454 &keys_gpio,
455};
456
457static void __init omap3touchbook_flash_init(void)
458{
459 u8 cs = 0;
460 u8 nandcs = GPMC_CS_NUM + 1;
461
462 u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
463
464 /* find out the chip-select on which NAND exists */
465 while (cs < GPMC_CS_NUM) {
466 u32 ret = 0;
467 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
468
469 if ((ret & 0xC00) == 0x800) {
470 printk(KERN_INFO "Found NAND on CS%d\n", cs);
471 if (nandcs > GPMC_CS_NUM)
472 nandcs = cs;
473 }
474 cs++;
475 }
476
477 if (nandcs > GPMC_CS_NUM) {
478 printk(KERN_INFO "NAND: Unable to find configuration "
479 "in GPMC\n ");
480 return;
481 }
482
483 if (nandcs < GPMC_CS_NUM) {
484 omap3touchbook_nand_data.cs = nandcs;
485 omap3touchbook_nand_data.gpmc_cs_baseaddr = (void *)
486 (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
487 omap3touchbook_nand_data.gpmc_baseaddr =
488 (void *) (gpmc_base_add);
489
490 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
491 if (platform_device_register(&omap3touchbook_nand_device) < 0)
492 printk(KERN_ERR "Unable to register NAND device\n");
493 }
494}
495
496static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
497
498 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
499 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
500 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
501
502 .phy_reset = true,
503 .reset_gpio_port[0] = -EINVAL,
504 .reset_gpio_port[1] = 147,
505 .reset_gpio_port[2] = -EINVAL
506};
507
508static void omap3_touchbook_poweroff(void)
509{
510 int r;
511
512 r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset");
513 if (r < 0) {
514 printk(KERN_ERR "Unable to get kill power GPIO\n");
515 return;
516 }
517
518 gpio_direction_output(TB_KILL_POWER_GPIO, 0);
519}
520
521static void __init early_touchbook_revision(char **p)
522{
523 if (!*p)
524 return;
525
526 strict_strtoul(*p, 10, &touchbook_revision);
527}
528__early_param("tbr=", early_touchbook_revision);
529
530static void __init omap3_touchbook_init(void)
531{
532 pm_power_off = omap3_touchbook_poweroff;
533
534 omap3_touchbook_i2c_init();
535 platform_add_devices(omap3_touchbook_devices,
536 ARRAY_SIZE(omap3_touchbook_devices));
537 omap_serial_init();
538
539 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
540 gpio_request(176, "DVI_nPD");
541 /* REVISIT leave DVI powered down until it's needed ... */
542 gpio_direction_output(176, true);
543
544 /* Touchscreen and accelerometer */
545 spi_register_board_info(omap3_ads7846_spi_board_info,
546 ARRAY_SIZE(omap3_ads7846_spi_board_info));
547 omap3_ads7846_init();
548 usb_musb_init();
549 usb_ehci_init(&ehci_pdata);
550 omap3touchbook_flash_init();
551
552 /* Ensure SDRC pins are mux'd for self-refresh */
553 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
554 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
555}
556
557static void __init omap3_touchbook_map_io(void)
558{
559 omap2_set_globals_343x();
560 omap2_map_common_io();
561}
562
563MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
564 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
565 .phys_io = 0x48000000,
566 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
567 .boot_params = 0x80000100,
568 .map_io = omap3_touchbook_map_io,
569 .init_irq = omap3_touchbook_init_irq,
570 .init_machine = omap3_touchbook_init,
571 .timer = &omap_timer,
572MACHINE_END
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-27 01:21:46 -0500