2 * linux/arch/arm/mach-omap2/board-ldp.c
4 * Copyright (C) 2008 Texas Instruments Inc.
5 * Nishant Kamat <nskamat@ti.com>
7 * Modified from mach-omap2/board-3430sdp.c
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/input.h>
19 #include <linux/input/matrix_keypad.h>
20 #include <linux/gpio_keys.h>
21 #include <linux/workqueue.h>
22 #include <linux/err.h>
23 #include <linux/clk.h>
24 #include <linux/spi/spi.h>
25 #include <linux/spi/ads7846.h>
26 #include <linux/regulator/machine.h>
27 #include <linux/i2c/twl.h>
29 #include <linux/smsc911x.h>
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
36 #include <plat/mcspi.h>
37 #include <mach/gpio.h>
38 #include <plat/board.h>
39 #include <plat/common.h>
40 #include <plat/gpmc.h>
42 #include <asm/delay.h>
43 #include <plat/control.h>
47 #include "mmc-twl4030.h"
49 #define LDP_SMSC911X_CS 1
50 #define LDP_SMSC911X_GPIO 152
51 #define DEBUG_BASE 0x08000000
52 #define LDP_ETHR_START DEBUG_BASE
54 static struct resource ldp_smsc911x_resources[] = {
56 .start = LDP_ETHR_START,
57 .end = LDP_ETHR_START + SZ_4K,
58 .flags = IORESOURCE_MEM,
63 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
67 static struct smsc911x_platform_config ldp_smsc911x_config = {
68 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
69 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
70 .flags = SMSC911X_USE_32BIT,
71 .phy_interface = PHY_INTERFACE_MODE_MII,
74 static struct platform_device ldp_smsc911x_device = {
77 .num_resources = ARRAY_SIZE(ldp_smsc911x_resources),
78 .resource = ldp_smsc911x_resources,
80 .platform_data = &ldp_smsc911x_config,
84 static int board_keymap[] = {
100 KEY(4, 4, KEY_VOLUMEUP),
101 KEY(5, 5, KEY_VOLUMEDOWN),
105 static struct matrix_keymap_data board_map_data = {
106 .keymap = board_keymap,
107 .keymap_size = ARRAY_SIZE(board_keymap),
110 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
111 .keymap_data = &board_map_data,
117 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
123 .debounce_interval = 30,
130 .debounce_interval = 30,
137 .debounce_interval = 30,
144 .debounce_interval = 30,
151 .debounce_interval = 30,
158 .debounce_interval = 30,
165 .debounce_interval = 30,
172 .debounce_interval = 30,
179 .debounce_interval = 30,
183 static struct gpio_keys_platform_data ldp_gpio_keys = {
184 .buttons = ldp_gpio_keys_buttons,
185 .nbuttons = ARRAY_SIZE(ldp_gpio_keys_buttons),
189 static struct platform_device ldp_gpio_keys_device = {
193 .platform_data = &ldp_gpio_keys,
200 * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
202 * @return - void. If request gpio fails then Flag KERN_ERR.
204 static void ads7846_dev_init(void)
206 if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
207 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
211 gpio_direction_input(ts_gpio);
212 omap_set_gpio_debounce(ts_gpio, 1);
213 omap_set_gpio_debounce_time(ts_gpio, 0xa);
216 static int ads7846_get_pendown_state(void)
218 return !gpio_get_value(ts_gpio);
221 static struct ads7846_platform_data tsc2046_config __initdata = {
222 .get_pendown_state = ads7846_get_pendown_state,
226 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
228 .single_channel = 1, /* 0: slave, 1: master */
231 static struct spi_board_info ldp_spi_board_info[] __initdata = {
234 * TSC2046 operates at a max freqency of 2MHz, so
235 * operate slightly below at 1.5MHz
237 .modalias = "ads7846",
240 .max_speed_hz = 1500000,
241 .controller_data = &tsc2046_mcspi_config,
243 .platform_data = &tsc2046_config,
247 static inline void __init ldp_init_smsc911x(void)
250 unsigned long cs_mem_base;
253 eth_cs = LDP_SMSC911X_CS;
255 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
256 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
260 ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
261 ldp_smsc911x_resources[0].end = cs_mem_base + 0xff;
264 eth_gpio = LDP_SMSC911X_GPIO;
266 ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
268 if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
269 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
273 gpio_direction_input(eth_gpio);
276 static struct platform_device ldp_lcd_device = {
281 static struct omap_lcd_config ldp_lcd_config __initdata = {
282 .ctrl_name = "internal",
285 static struct omap_board_config_kernel ldp_config[] __initdata = {
286 { OMAP_TAG_LCD, &ldp_lcd_config },
289 static void __init omap_ldp_init_irq(void)
291 omap_board_config = ldp_config;
292 omap_board_config_size = ARRAY_SIZE(ldp_config);
293 omap2_init_common_hw(NULL, NULL);
299 static struct twl4030_usb_data ldp_usb_data = {
300 .usb_mode = T2_USB_MODE_ULPI,
303 static struct twl4030_gpio_platform_data ldp_gpio_data = {
304 .gpio_base = OMAP_MAX_GPIO_LINES,
305 .irq_base = TWL4030_GPIO_IRQ_BASE,
306 .irq_end = TWL4030_GPIO_IRQ_END,
309 static struct twl4030_madc_platform_data ldp_madc_data = {
313 static struct regulator_consumer_supply ldp_vmmc1_supply = {
317 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
318 static struct regulator_init_data ldp_vmmc1 = {
322 .valid_modes_mask = REGULATOR_MODE_NORMAL
323 | REGULATOR_MODE_STANDBY,
324 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
325 | REGULATOR_CHANGE_MODE
326 | REGULATOR_CHANGE_STATUS,
328 .num_consumer_supplies = 1,
329 .consumer_supplies = &ldp_vmmc1_supply,
332 static struct twl4030_platform_data ldp_twldata = {
333 .irq_base = TWL4030_IRQ_BASE,
334 .irq_end = TWL4030_IRQ_END,
336 /* platform_data for children goes here */
337 .madc = &ldp_madc_data,
338 .usb = &ldp_usb_data,
340 .gpio = &ldp_gpio_data,
341 .keypad = &ldp_kp_twl4030_data,
344 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
346 I2C_BOARD_INFO("twl4030", 0x48),
347 .flags = I2C_CLIENT_WAKE,
348 .irq = INT_34XX_SYS_NIRQ,
349 .platform_data = &ldp_twldata,
353 static int __init omap_i2c_init(void)
355 omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
356 ARRAY_SIZE(ldp_i2c_boardinfo));
357 omap_register_i2c_bus(2, 400, NULL, 0);
358 omap_register_i2c_bus(3, 400, NULL, 0);
362 static struct twl4030_hsmmc_info mmc[] __initdata = {
372 static struct platform_device *ldp_devices[] __initdata = {
373 &ldp_smsc911x_device,
375 &ldp_gpio_keys_device,
378 #ifdef CONFIG_OMAP_MUX
379 static struct omap_board_mux board_mux[] __initdata = {
380 { .reg_offset = OMAP_MUX_TERMINATOR },
383 #define board_mux NULL
386 static void __init omap_ldp_init(void)
388 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
390 platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
392 ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
393 spi_register_board_info(ldp_spi_board_info,
394 ARRAY_SIZE(ldp_spi_board_info));
399 twl4030_mmc_init(mmc);
400 /* link regulators to MMC adapters */
401 ldp_vmmc1_supply.dev = mmc[0].dev;
404 static void __init omap_ldp_map_io(void)
406 omap2_set_globals_343x();
407 omap2_map_common_io();
410 MACHINE_START(OMAP_LDP, "OMAP LDP board")
411 .phys_io = 0x48000000,
412 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
413 .boot_params = 0x80000100,
414 .map_io = omap_ldp_map_io,
415 .init_irq = omap_ldp_init_irq,
416 .init_machine = omap_ldp_init,
417 .timer = &omap_timer,