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>
30 #include <linux/mmc/host.h>
32 #include <plat/mcspi.h>
33 #include <linux/spi/spi.h>
35 #include <linux/spi/ads7846.h>
37 #include <linux/regulator/machine.h>
38 #include <linux/i2c/twl.h>
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>
46 #include <plat/board.h>
47 #include <plat/common.h>
48 #include <plat/gpmc.h>
49 #include <plat/nand.h>
55 #include "common-board-devices.h"
57 #include <asm/setup.h>
59 #define NAND_BLOCK_SIZE SZ_128K
61 #define OMAP3_AC_GPIO 136
62 #define OMAP3_TS_GPIO 162
63 #define TB_BL_PWM_TIMER 9
64 #define TB_KILL_POWER_GPIO 168
66 static unsigned long touchbook_revision
;
68 static struct mtd_partition omap3touchbook_nand_partitions
[] = {
69 /* All the partition sizes are listed in terms of NAND block size */
73 .size
= 4 * NAND_BLOCK_SIZE
,
74 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
78 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
79 .size
= 15 * NAND_BLOCK_SIZE
,
80 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
84 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
85 .size
= 1 * NAND_BLOCK_SIZE
,
89 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
90 .size
= 32 * NAND_BLOCK_SIZE
,
93 .name
= "File System",
94 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
95 .size
= MTDPART_SIZ_FULL
,
99 #include "sdram-micron-mt46h32m32lf-6.h"
101 static struct omap2_hsmmc_info mmc
[] = {
104 .caps
= MMC_CAP_4_BIT_DATA
| MMC_CAP_8_BIT_DATA
,
110 static struct platform_device omap3_touchbook_lcd_device
= {
111 .name
= "omap3touchbook_lcd",
115 static struct omap_lcd_config omap3_touchbook_lcd_config __initdata
= {
116 .ctrl_name
= "internal",
119 static struct regulator_consumer_supply touchbook_vmmc1_supply
= {
123 static struct regulator_consumer_supply touchbook_vsim_supply
= {
124 .supply
= "vmmc_aux",
127 static struct gpio_led gpio_leds
[];
129 static int touchbook_twl_gpio_setup(struct device
*dev
,
130 unsigned gpio
, unsigned ngpio
)
132 if (system_rev
>= 0x20 && system_rev
<= 0x34301000) {
133 omap_mux_init_gpio(23, OMAP_PIN_INPUT
);
136 omap_mux_init_gpio(29, OMAP_PIN_INPUT
);
138 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
139 mmc
[0].gpio_cd
= gpio
+ 0;
140 omap2_hsmmc_init(mmc
);
142 /* link regulators to MMC adapters */
143 touchbook_vmmc1_supply
.dev
= mmc
[0].dev
;
144 touchbook_vsim_supply
.dev
= mmc
[0].dev
;
146 /* REVISIT: need ehci-omap hooks for external VBUS
147 * power switch and overcurrent detect
150 gpio_request(gpio
+ 1, "EHCI_nOC");
151 gpio_direction_input(gpio
+ 1);
153 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
154 gpio_request(gpio
+ TWL4030_GPIO_MAX
, "nEN_USB_PWR");
155 gpio_direction_output(gpio
+ TWL4030_GPIO_MAX
, 0);
157 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
158 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
163 static struct twl4030_gpio_platform_data touchbook_gpio_data
= {
164 .gpio_base
= OMAP_MAX_GPIO_LINES
,
165 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
166 .irq_end
= TWL4030_GPIO_IRQ_END
,
169 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
170 | BIT(15) | BIT(16) | BIT(17),
171 .setup
= touchbook_twl_gpio_setup
,
174 static struct regulator_consumer_supply touchbook_vdac_supply
= {
176 .dev
= &omap3_touchbook_lcd_device
.dev
,
179 static struct regulator_consumer_supply touchbook_vdvi_supply
= {
181 .dev
= &omap3_touchbook_lcd_device
.dev
,
184 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
185 static struct regulator_init_data touchbook_vmmc1
= {
189 .valid_modes_mask
= REGULATOR_MODE_NORMAL
190 | REGULATOR_MODE_STANDBY
,
191 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
192 | REGULATOR_CHANGE_MODE
193 | REGULATOR_CHANGE_STATUS
,
195 .num_consumer_supplies
= 1,
196 .consumer_supplies
= &touchbook_vmmc1_supply
,
199 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
200 static struct regulator_init_data touchbook_vsim
= {
204 .valid_modes_mask
= REGULATOR_MODE_NORMAL
205 | REGULATOR_MODE_STANDBY
,
206 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
207 | REGULATOR_CHANGE_MODE
208 | REGULATOR_CHANGE_STATUS
,
210 .num_consumer_supplies
= 1,
211 .consumer_supplies
= &touchbook_vsim_supply
,
214 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
215 static struct regulator_init_data touchbook_vdac
= {
219 .valid_modes_mask
= REGULATOR_MODE_NORMAL
220 | REGULATOR_MODE_STANDBY
,
221 .valid_ops_mask
= REGULATOR_CHANGE_MODE
222 | REGULATOR_CHANGE_STATUS
,
224 .num_consumer_supplies
= 1,
225 .consumer_supplies
= &touchbook_vdac_supply
,
228 /* VPLL2 for digital video outputs */
229 static struct regulator_init_data touchbook_vpll2
= {
234 .valid_modes_mask
= REGULATOR_MODE_NORMAL
235 | REGULATOR_MODE_STANDBY
,
236 .valid_ops_mask
= REGULATOR_CHANGE_MODE
237 | REGULATOR_CHANGE_STATUS
,
239 .num_consumer_supplies
= 1,
240 .consumer_supplies
= &touchbook_vdvi_supply
,
243 static struct twl4030_usb_data touchbook_usb_data
= {
244 .usb_mode
= T2_USB_MODE_ULPI
,
247 static struct twl4030_codec_audio_data touchbook_audio_data
;
249 static struct twl4030_codec_data touchbook_codec_data
= {
250 .audio_mclk
= 26000000,
251 .audio
= &touchbook_audio_data
,
254 static struct twl4030_platform_data touchbook_twldata
= {
255 .irq_base
= TWL4030_IRQ_BASE
,
256 .irq_end
= TWL4030_IRQ_END
,
258 /* platform_data for children goes here */
259 .usb
= &touchbook_usb_data
,
260 .gpio
= &touchbook_gpio_data
,
261 .codec
= &touchbook_codec_data
,
262 .vmmc1
= &touchbook_vmmc1
,
263 .vsim
= &touchbook_vsim
,
264 .vdac
= &touchbook_vdac
,
265 .vpll2
= &touchbook_vpll2
,
268 static struct i2c_board_info __initdata touchBook_i2c_boardinfo
[] = {
270 I2C_BOARD_INFO("bq27200", 0x55),
274 static int __init
omap3_touchbook_i2c_init(void)
276 /* Standard TouchBook bus */
277 omap3_pmic_init("twl4030", &touchbook_twldata
);
279 /* Additional TouchBook bus */
280 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo
,
281 ARRAY_SIZE(touchBook_i2c_boardinfo
));
286 static struct ads7846_platform_data ads7846_pdata
= {
296 .gpio_pendown
= OMAP3_TS_GPIO
,
300 static struct gpio_led gpio_leds
[] = {
302 .name
= "touchbook::usr0",
303 .default_trigger
= "heartbeat",
307 .name
= "touchbook::usr1",
308 .default_trigger
= "mmc0",
312 .name
= "touchbook::pmu_stat",
313 .gpio
= -EINVAL
, /* gets replaced */
318 static struct gpio_led_platform_data gpio_led_info
= {
320 .num_leds
= ARRAY_SIZE(gpio_leds
),
323 static struct platform_device leds_gpio
= {
327 .platform_data
= &gpio_led_info
,
331 static struct gpio_keys_button gpio_buttons
[] = {
346 static struct gpio_keys_platform_data gpio_key_info
= {
347 .buttons
= gpio_buttons
,
348 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
351 static struct platform_device keys_gpio
= {
355 .platform_data
= &gpio_key_info
,
359 static struct omap_board_config_kernel omap3_touchbook_config
[] __initdata
= {
360 { OMAP_TAG_LCD
, &omap3_touchbook_lcd_config
},
363 #ifdef CONFIG_OMAP_MUX
364 static struct omap_board_mux board_mux
[] __initdata
= {
365 { .reg_offset
= OMAP_MUX_TERMINATOR
},
369 static void __init
omap3_touchbook_init_early(void)
371 omap2_init_common_infrastructure();
372 omap2_init_common_devices(mt46h32m32lf6_sdrc_params
,
373 mt46h32m32lf6_sdrc_params
);
376 static void __init
omap3_touchbook_init_irq(void)
379 #ifdef CONFIG_OMAP_32K_TIMER
380 omap2_gp_clockevent_set_gptimer(12);
384 static struct platform_device
*omap3_touchbook_devices
[] __initdata
= {
385 &omap3_touchbook_lcd_device
,
390 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
392 .port_mode
[0] = OMAP_EHCI_PORT_MODE_PHY
,
393 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
394 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
397 .reset_gpio_port
[0] = -EINVAL
,
398 .reset_gpio_port
[1] = 147,
399 .reset_gpio_port
[2] = -EINVAL
402 static void omap3_touchbook_poweroff(void)
406 r
= gpio_request(TB_KILL_POWER_GPIO
, "DVI reset");
408 printk(KERN_ERR
"Unable to get kill power GPIO\n");
412 gpio_direction_output(TB_KILL_POWER_GPIO
, 0);
415 static int __init
early_touchbook_revision(char *p
)
420 return strict_strtoul(p
, 10, &touchbook_revision
);
422 early_param("tbr", early_touchbook_revision
);
424 static void __init
omap3_touchbook_init(void)
426 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
427 omap_board_config
= omap3_touchbook_config
;
428 omap_board_config_size
= ARRAY_SIZE(omap3_touchbook_config
);
430 pm_power_off
= omap3_touchbook_poweroff
;
432 omap3_touchbook_i2c_init();
433 platform_add_devices(omap3_touchbook_devices
,
434 ARRAY_SIZE(omap3_touchbook_devices
));
437 omap_mux_init_gpio(170, OMAP_PIN_INPUT
);
438 gpio_request(176, "DVI_nPD");
439 /* REVISIT leave DVI powered down until it's needed ... */
440 gpio_direction_output(176, true);
442 /* Touchscreen and accelerometer */
443 omap_ads7846_init(4, OMAP3_TS_GPIO
, 310, &ads7846_pdata
);
445 usbhs_init(&usbhs_bdata
);
446 omap_nand_flash_init(NAND_BUSWIDTH_16
, omap3touchbook_nand_partitions
,
447 ARRAY_SIZE(omap3touchbook_nand_partitions
));
449 /* Ensure SDRC pins are mux'd for self-refresh */
450 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
451 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT
);
454 MACHINE_START(TOUCHBOOK
, "OMAP3 touchbook Board")
455 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
456 .boot_params
= 0x80000100,
457 .reserve
= omap_reserve
,
458 .map_io
= omap3_map_io
,
459 .init_early
= omap3_touchbook_init_early
,
460 .init_irq
= omap3_touchbook_init_irq
,
461 .init_machine
= omap3_touchbook_init
,
462 .timer
= &omap_timer
,