2 * linux/arch/arm/mach-omap2/board-omap3touchbook.c
4 * Copyright (C) 2009 Always Innovating
6 * Modified from mach-omap2/board-omap3beagleboard.c
8 * Initial code: Grégoire Gentil, Tim Yamin
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.
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>
22 #include <linux/leds.h>
23 #include <linux/gpio.h>
24 #include <linux/input.h>
25 #include <linux/gpio_keys.h>
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/mtd/nand.h>
31 #include <plat/mcspi.h>
32 #include <linux/spi/spi.h>
34 #include <linux/spi/ads7846.h>
36 #include <linux/regulator/machine.h>
37 #include <linux/i2c/twl.h>
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>
45 #include <plat/board.h>
46 #include <plat/common.h>
47 #include <plat/gpmc.h>
48 #include <plat/nand.h>
50 #include <plat/timer-gp.h>
55 #include <asm/setup.h>
57 #define NAND_BLOCK_SIZE SZ_128K
59 #define OMAP3_AC_GPIO 136
60 #define OMAP3_TS_GPIO 162
61 #define TB_BL_PWM_TIMER 9
62 #define TB_KILL_POWER_GPIO 168
64 unsigned long touchbook_revision;
66 static struct mtd_partition omap3touchbook_nand_partitions[] = {
67 /* All the partition sizes are listed in terms of NAND block size */
71 .size = 4 * NAND_BLOCK_SIZE,
72 .mask_flags = MTD_WRITEABLE, /* force read-only */
76 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
77 .size = 15 * NAND_BLOCK_SIZE,
78 .mask_flags = MTD_WRITEABLE, /* force read-only */
82 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
83 .size = 1 * NAND_BLOCK_SIZE,
87 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
88 .size = 32 * NAND_BLOCK_SIZE,
91 .name = "File System",
92 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
93 .size = MTDPART_SIZ_FULL,
97 static struct omap_nand_platform_data omap3touchbook_nand_data = {
98 .options = NAND_BUSWIDTH_16,
99 .parts = omap3touchbook_nand_partitions,
100 .nr_parts = ARRAY_SIZE(omap3touchbook_nand_partitions),
101 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
106 #include "sdram-micron-mt46h32m32lf-6.h"
108 static struct omap2_hsmmc_info mmc[] = {
117 static struct platform_device omap3_touchbook_lcd_device = {
118 .name = "omap3touchbook_lcd",
122 static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
123 .ctrl_name = "internal",
126 static struct regulator_consumer_supply touchbook_vmmc1_supply = {
130 static struct regulator_consumer_supply touchbook_vsim_supply = {
131 .supply = "vmmc_aux",
134 static struct gpio_led gpio_leds[];
136 static int touchbook_twl_gpio_setup(struct device *dev,
137 unsigned gpio, unsigned ngpio)
139 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
140 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
143 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
145 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
146 mmc[0].gpio_cd = gpio + 0;
147 omap2_hsmmc_init(mmc);
149 /* link regulators to MMC adapters */
150 touchbook_vmmc1_supply.dev = mmc[0].dev;
151 touchbook_vsim_supply.dev = mmc[0].dev;
153 /* REVISIT: need ehci-omap hooks for external VBUS
154 * power switch and overcurrent detect
157 gpio_request(gpio + 1, "EHCI_nOC");
158 gpio_direction_input(gpio + 1);
160 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
161 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
162 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
164 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
165 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
170 static struct twl4030_gpio_platform_data touchbook_gpio_data = {
171 .gpio_base = OMAP_MAX_GPIO_LINES,
172 .irq_base = TWL4030_GPIO_IRQ_BASE,
173 .irq_end = TWL4030_GPIO_IRQ_END,
176 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
177 | BIT(15) | BIT(16) | BIT(17),
178 .setup = touchbook_twl_gpio_setup,
181 static struct regulator_consumer_supply touchbook_vdac_supply = {
183 .dev = &omap3_touchbook_lcd_device.dev,
186 static struct regulator_consumer_supply touchbook_vdvi_supply = {
188 .dev = &omap3_touchbook_lcd_device.dev,
191 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
192 static struct regulator_init_data touchbook_vmmc1 = {
196 .valid_modes_mask = REGULATOR_MODE_NORMAL
197 | REGULATOR_MODE_STANDBY,
198 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
199 | REGULATOR_CHANGE_MODE
200 | REGULATOR_CHANGE_STATUS,
202 .num_consumer_supplies = 1,
203 .consumer_supplies = &touchbook_vmmc1_supply,
206 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
207 static struct regulator_init_data touchbook_vsim = {
211 .valid_modes_mask = REGULATOR_MODE_NORMAL
212 | REGULATOR_MODE_STANDBY,
213 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
214 | REGULATOR_CHANGE_MODE
215 | REGULATOR_CHANGE_STATUS,
217 .num_consumer_supplies = 1,
218 .consumer_supplies = &touchbook_vsim_supply,
221 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
222 static struct regulator_init_data touchbook_vdac = {
226 .valid_modes_mask = REGULATOR_MODE_NORMAL
227 | REGULATOR_MODE_STANDBY,
228 .valid_ops_mask = REGULATOR_CHANGE_MODE
229 | REGULATOR_CHANGE_STATUS,
231 .num_consumer_supplies = 1,
232 .consumer_supplies = &touchbook_vdac_supply,
235 /* VPLL2 for digital video outputs */
236 static struct regulator_init_data touchbook_vpll2 = {
241 .valid_modes_mask = REGULATOR_MODE_NORMAL
242 | REGULATOR_MODE_STANDBY,
243 .valid_ops_mask = REGULATOR_CHANGE_MODE
244 | REGULATOR_CHANGE_STATUS,
246 .num_consumer_supplies = 1,
247 .consumer_supplies = &touchbook_vdvi_supply,
250 static struct twl4030_usb_data touchbook_usb_data = {
251 .usb_mode = T2_USB_MODE_ULPI,
254 static struct twl4030_codec_audio_data touchbook_audio_data = {
255 .audio_mclk = 26000000,
258 static struct twl4030_codec_data touchbook_codec_data = {
259 .audio_mclk = 26000000,
260 .audio = &touchbook_audio_data,
263 static struct twl4030_platform_data touchbook_twldata = {
264 .irq_base = TWL4030_IRQ_BASE,
265 .irq_end = TWL4030_IRQ_END,
267 /* platform_data for children goes here */
268 .usb = &touchbook_usb_data,
269 .gpio = &touchbook_gpio_data,
270 .codec = &touchbook_codec_data,
271 .vmmc1 = &touchbook_vmmc1,
272 .vsim = &touchbook_vsim,
273 .vdac = &touchbook_vdac,
274 .vpll2 = &touchbook_vpll2,
277 static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {
279 I2C_BOARD_INFO("twl4030", 0x48),
280 .flags = I2C_CLIENT_WAKE,
281 .irq = INT_34XX_SYS_NIRQ,
282 .platform_data = &touchbook_twldata,
286 static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
288 I2C_BOARD_INFO("bq27200", 0x55),
292 static int __init omap3_touchbook_i2c_init(void)
294 /* Standard TouchBook bus */
295 omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,
296 ARRAY_SIZE(touchbook_i2c_boardinfo));
298 /* Additional TouchBook bus */
299 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
300 ARRAY_SIZE(touchBook_i2c_boardinfo));
305 static void __init omap3_ads7846_init(void)
307 if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
308 printk(KERN_ERR "Failed to request GPIO %d for "
309 "ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
313 gpio_direction_input(OMAP3_TS_GPIO);
314 gpio_set_debounce(OMAP3_TS_GPIO, 310);
317 static struct ads7846_platform_data ads7846_config = {
327 .gpio_pendown = OMAP3_TS_GPIO,
331 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
333 .single_channel = 1, /* 0: slave, 1: master */
336 static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
338 .modalias = "ads7846",
341 .max_speed_hz = 1500000,
342 .controller_data = &ads7846_mcspi_config,
343 .irq = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
344 .platform_data = &ads7846_config,
348 static struct gpio_led gpio_leds[] = {
350 .name = "touchbook::usr0",
351 .default_trigger = "heartbeat",
355 .name = "touchbook::usr1",
356 .default_trigger = "mmc0",
360 .name = "touchbook::pmu_stat",
361 .gpio = -EINVAL, /* gets replaced */
366 static struct gpio_led_platform_data gpio_led_info = {
368 .num_leds = ARRAY_SIZE(gpio_leds),
371 static struct platform_device leds_gpio = {
375 .platform_data = &gpio_led_info,
379 static struct gpio_keys_button gpio_buttons[] = {
394 static struct gpio_keys_platform_data gpio_key_info = {
395 .buttons = gpio_buttons,
396 .nbuttons = ARRAY_SIZE(gpio_buttons),
399 static struct platform_device keys_gpio = {
403 .platform_data = &gpio_key_info,
407 static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
408 { OMAP_TAG_LCD, &omap3_touchbook_lcd_config },
411 #ifdef CONFIG_OMAP_MUX
412 static struct omap_board_mux board_mux[] __initdata = {
413 { .reg_offset = OMAP_MUX_TERMINATOR },
416 #define board_mux NULL
419 static void __init omap3_touchbook_init_irq(void)
421 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
422 omap_board_config = omap3_touchbook_config;
423 omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
424 omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
425 mt46h32m32lf6_sdrc_params);
427 #ifdef CONFIG_OMAP_32K_TIMER
428 omap2_gp_clockevent_set_gptimer(12);
433 static struct platform_device *omap3_touchbook_devices[] __initdata = {
434 &omap3_touchbook_lcd_device,
439 static void __init omap3touchbook_flash_init(void)
442 u8 nandcs = GPMC_CS_NUM + 1;
444 /* find out the chip-select on which NAND exists */
445 while (cs < GPMC_CS_NUM) {
447 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
449 if ((ret & 0xC00) == 0x800) {
450 printk(KERN_INFO "Found NAND on CS%d\n", cs);
451 if (nandcs > GPMC_CS_NUM)
457 if (nandcs > GPMC_CS_NUM) {
458 printk(KERN_INFO "NAND: Unable to find configuration "
463 if (nandcs < GPMC_CS_NUM) {
464 omap3touchbook_nand_data.cs = nandcs;
466 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
467 if (gpmc_nand_init(&omap3touchbook_nand_data) < 0)
468 printk(KERN_ERR "Unable to register NAND device\n");
472 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
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,
479 .reset_gpio_port[0] = -EINVAL,
480 .reset_gpio_port[1] = 147,
481 .reset_gpio_port[2] = -EINVAL
484 static void omap3_touchbook_poweroff(void)
488 r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset");
490 printk(KERN_ERR "Unable to get kill power GPIO\n");
494 gpio_direction_output(TB_KILL_POWER_GPIO, 0);
497 static int __init early_touchbook_revision(char *p)
502 return strict_strtoul(p, 10, &touchbook_revision);
504 early_param("tbr", early_touchbook_revision);
506 static struct omap_musb_board_data musb_board_data = {
507 .interface_type = MUSB_INTERFACE_ULPI,
512 static void __init omap3_touchbook_init(void)
514 pm_power_off = omap3_touchbook_poweroff;
516 omap3_touchbook_i2c_init();
517 platform_add_devices(omap3_touchbook_devices,
518 ARRAY_SIZE(omap3_touchbook_devices));
521 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
522 gpio_request(176, "DVI_nPD");
523 /* REVISIT leave DVI powered down until it's needed ... */
524 gpio_direction_output(176, true);
526 /* Touchscreen and accelerometer */
527 spi_register_board_info(omap3_ads7846_spi_board_info,
528 ARRAY_SIZE(omap3_ads7846_spi_board_info));
529 omap3_ads7846_init();
530 usb_musb_init(&musb_board_data);
531 usb_ehci_init(&ehci_pdata);
532 omap3touchbook_flash_init();
534 /* Ensure SDRC pins are mux'd for self-refresh */
535 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
536 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
539 MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
540 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
541 .phys_io = 0x48000000,
542 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
543 .boot_params = 0x80000100,
544 .map_io = omap3_map_io,
545 .reserve = omap_reserve,
546 .init_irq = omap3_touchbook_init_irq,
547 .init_machine = omap3_touchbook_init,
548 .timer = &omap_timer,