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>
45 #include <asm/system_info.h>
48 #include <plat/gpmc.h>
49 #include <plat/nand.h>
54 #include "common-board-devices.h"
56 #include <asm/setup.h>
58 #define OMAP3_AC_GPIO 136
59 #define OMAP3_TS_GPIO 162
60 #define TB_BL_PWM_TIMER 9
61 #define TB_KILL_POWER_GPIO 168
63 static unsigned long touchbook_revision;
65 static struct mtd_partition omap3touchbook_nand_partitions[] = {
66 /* All the partition sizes are listed in terms of NAND block size */
70 .size = 4 * NAND_BLOCK_SIZE,
71 .mask_flags = MTD_WRITEABLE, /* force read-only */
75 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
76 .size = 15 * NAND_BLOCK_SIZE,
77 .mask_flags = MTD_WRITEABLE, /* force read-only */
81 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
82 .size = 1 * NAND_BLOCK_SIZE,
86 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
87 .size = 32 * NAND_BLOCK_SIZE,
90 .name = "File System",
91 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
92 .size = MTDPART_SIZ_FULL,
96 #include "sdram-micron-mt46h32m32lf-6.h"
98 static struct omap2_hsmmc_info mmc[] = {
101 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
108 static struct regulator_consumer_supply touchbook_vmmc1_supply[] = {
109 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
112 static struct regulator_consumer_supply touchbook_vsim_supply[] = {
113 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
116 static struct gpio_led gpio_leds[];
118 static int touchbook_twl_gpio_setup(struct device *dev,
119 unsigned gpio, unsigned ngpio)
121 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
122 mmc[0].gpio_cd = gpio + 0;
123 omap_hsmmc_late_init(mmc);
125 /* REVISIT: need ehci-omap hooks for external VBUS
126 * power switch and overcurrent detect
128 gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC");
130 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
131 gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
134 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
135 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
140 static struct twl4030_gpio_platform_data touchbook_gpio_data = {
143 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
144 | BIT(15) | BIT(16) | BIT(17),
145 .setup = touchbook_twl_gpio_setup,
148 static struct regulator_consumer_supply touchbook_vdac_supply[] = {
154 static struct regulator_consumer_supply touchbook_vdvi_supply[] = {
160 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
161 static struct regulator_init_data touchbook_vmmc1 = {
165 .valid_modes_mask = REGULATOR_MODE_NORMAL
166 | REGULATOR_MODE_STANDBY,
167 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
168 | REGULATOR_CHANGE_MODE
169 | REGULATOR_CHANGE_STATUS,
171 .num_consumer_supplies = ARRAY_SIZE(touchbook_vmmc1_supply),
172 .consumer_supplies = touchbook_vmmc1_supply,
175 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
176 static struct regulator_init_data touchbook_vsim = {
180 .valid_modes_mask = REGULATOR_MODE_NORMAL
181 | REGULATOR_MODE_STANDBY,
182 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
183 | REGULATOR_CHANGE_MODE
184 | REGULATOR_CHANGE_STATUS,
186 .num_consumer_supplies = ARRAY_SIZE(touchbook_vsim_supply),
187 .consumer_supplies = touchbook_vsim_supply,
190 static struct twl4030_platform_data touchbook_twldata = {
191 /* platform_data for children goes here */
192 .gpio = &touchbook_gpio_data,
193 .vmmc1 = &touchbook_vmmc1,
194 .vsim = &touchbook_vsim,
197 static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
199 I2C_BOARD_INFO("bq27200", 0x55),
203 static int __init omap3_touchbook_i2c_init(void)
205 /* Standard TouchBook bus */
206 omap3_pmic_get_config(&touchbook_twldata,
207 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
208 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
210 touchbook_twldata.vdac->num_consumer_supplies =
211 ARRAY_SIZE(touchbook_vdac_supply);
212 touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply;
214 touchbook_twldata.vpll2->constraints.name = "VDVI";
215 touchbook_twldata.vpll2->num_consumer_supplies =
216 ARRAY_SIZE(touchbook_vdvi_supply);
217 touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply;
219 omap3_pmic_init("twl4030", &touchbook_twldata);
220 /* Additional TouchBook bus */
221 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
222 ARRAY_SIZE(touchBook_i2c_boardinfo));
227 static struct ads7846_platform_data ads7846_pdata = {
237 .gpio_pendown = OMAP3_TS_GPIO,
241 static struct gpio_led gpio_leds[] = {
243 .name = "touchbook::usr0",
244 .default_trigger = "heartbeat",
248 .name = "touchbook::usr1",
249 .default_trigger = "mmc0",
253 .name = "touchbook::pmu_stat",
254 .gpio = -EINVAL, /* gets replaced */
259 static struct gpio_led_platform_data gpio_led_info = {
261 .num_leds = ARRAY_SIZE(gpio_leds),
264 static struct platform_device leds_gpio = {
268 .platform_data = &gpio_led_info,
272 static struct gpio_keys_button gpio_buttons[] = {
287 static struct gpio_keys_platform_data gpio_key_info = {
288 .buttons = gpio_buttons,
289 .nbuttons = ARRAY_SIZE(gpio_buttons),
292 static struct platform_device keys_gpio = {
296 .platform_data = &gpio_key_info,
300 #ifdef CONFIG_OMAP_MUX
301 static struct omap_board_mux board_mux[] __initdata = {
302 { .reg_offset = OMAP_MUX_TERMINATOR },
306 static struct platform_device *omap3_touchbook_devices[] __initdata = {
311 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
313 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
314 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
315 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
318 .reset_gpio_port[0] = -EINVAL,
319 .reset_gpio_port[1] = 147,
320 .reset_gpio_port[2] = -EINVAL
323 static void omap3_touchbook_poweroff(void)
325 int pwr_off = TB_KILL_POWER_GPIO;
327 if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0)
328 printk(KERN_ERR "Unable to get kill power GPIO\n");
331 static int __init early_touchbook_revision(char *p)
336 return strict_strtoul(p, 10, &touchbook_revision);
338 early_param("tbr", early_touchbook_revision);
340 static void __init omap3_touchbook_init(void)
342 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
344 pm_power_off = omap3_touchbook_poweroff;
346 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
347 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
350 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
352 omap_hsmmc_init(mmc);
354 omap3_touchbook_i2c_init();
355 platform_add_devices(omap3_touchbook_devices,
356 ARRAY_SIZE(omap3_touchbook_devices));
358 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
359 mt46h32m32lf6_sdrc_params);
361 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
362 /* REVISIT leave DVI powered down until it's needed ... */
363 gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
365 /* Touchscreen and accelerometer */
366 omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
368 usbhs_init(&usbhs_bdata);
369 omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions,
370 ARRAY_SIZE(omap3touchbook_nand_partitions));
372 /* Ensure SDRC pins are mux'd for self-refresh */
373 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
374 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
377 MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
378 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
379 .atag_offset = 0x100,
380 .reserve = omap_reserve,
381 .map_io = omap3_map_io,
382 .init_early = omap3430_init_early,
383 .init_irq = omap3_init_irq,
384 .handle_irq = omap3_intc_handle_irq,
385 .init_machine = omap3_touchbook_init,
386 .init_late = omap3430_init_late,
387 .timer = &omap3_secure_timer,
388 .restart = omap_prcm_restart,