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/gpio_keys.h>
20 #include <linux/workqueue.h>
21 #include <linux/err.h>
22 #include <linux/clk.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/ads7846.h>
25 #include <linux/regulator/machine.h>
26 #include <linux/i2c/twl4030.h>
28 #include <linux/smsc911x.h>
30 #include <mach/hardware.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/map.h>
35 #include <mach/mcspi.h>
36 #include <mach/gpio.h>
37 #include <mach/board.h>
38 #include <mach/common.h>
39 #include <mach/gpmc.h>
41 #include <asm/delay.h>
42 #include <mach/control.h>
44 #include <mach/keypad.h>
46 #include "mmc-twl4030.h"
48 #define LDP_SMSC911X_CS 1
49 #define LDP_SMSC911X_GPIO 152
50 #define DEBUG_BASE 0x08000000
51 #define LDP_ETHR_START DEBUG_BASE
53 static struct resource ldp_smsc911x_resources[] = {
55 .start = LDP_ETHR_START,
56 .end = LDP_ETHR_START + SZ_4K,
57 .flags = IORESOURCE_MEM,
62 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
66 static struct smsc911x_platform_config ldp_smsc911x_config = {
67 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
68 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
69 .flags = SMSC911X_USE_32BIT,
70 .phy_interface = PHY_INTERFACE_MODE_MII,
73 static struct platform_device ldp_smsc911x_device = {
76 .num_resources = ARRAY_SIZE(ldp_smsc911x_resources),
77 .resource = ldp_smsc911x_resources,
79 .platform_data = &ldp_smsc911x_config,
83 static int board_keymap[] = {
99 KEY(4, 4, KEY_VOLUMEUP),
100 KEY(5, 5, KEY_VOLUMEDOWN),
104 static struct matrix_keymap_data board_map_data = {
105 .keymap = board_keymap,
106 .keymap_size = ARRAY_SIZE(board_keymap),
109 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
110 .keymap_data = &board_map_data,
116 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
122 .debounce_interval = 30,
129 .debounce_interval = 30,
136 .debounce_interval = 30,
143 .debounce_interval = 30,
150 .debounce_interval = 30,
157 .debounce_interval = 30,
164 .debounce_interval = 30,
171 .debounce_interval = 30,
178 .debounce_interval = 30,
182 static struct gpio_keys_platform_data ldp_gpio_keys = {
183 .buttons = ldp_gpio_keys_buttons,
184 .nbuttons = ARRAY_SIZE(ldp_gpio_keys_buttons),
188 static struct platform_device ldp_gpio_keys_device = {
192 .platform_data = &ldp_gpio_keys,
199 * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
201 * @return - void. If request gpio fails then Flag KERN_ERR.
203 static void ads7846_dev_init(void)
205 if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
206 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
210 gpio_direction_input(ts_gpio);
211 omap_set_gpio_debounce(ts_gpio, 1);
212 omap_set_gpio_debounce_time(ts_gpio, 0xa);
215 static int ads7846_get_pendown_state(void)
217 return !gpio_get_value(ts_gpio);
220 static struct ads7846_platform_data tsc2046_config __initdata = {
221 .get_pendown_state = ads7846_get_pendown_state,
225 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
227 .single_channel = 1, /* 0: slave, 1: master */
230 static struct spi_board_info ldp_spi_board_info[] __initdata = {
233 * TSC2046 operates at a max freqency of 2MHz, so
234 * operate slightly below at 1.5MHz
236 .modalias = "ads7846",
239 .max_speed_hz = 1500000,
240 .controller_data = &tsc2046_mcspi_config,
242 .platform_data = &tsc2046_config,
246 static inline void __init ldp_init_smsc911x(void)
249 unsigned long cs_mem_base;
252 eth_cs = LDP_SMSC911X_CS;
254 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
255 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
259 ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
260 ldp_smsc911x_resources[0].end = cs_mem_base + 0xff;
263 eth_gpio = LDP_SMSC911X_GPIO;
265 ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
267 if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
268 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
272 gpio_direction_input(eth_gpio);
275 static struct platform_device ldp_lcd_device = {
280 static struct omap_lcd_config ldp_lcd_config __initdata = {
281 .ctrl_name = "internal",
284 static struct omap_board_config_kernel ldp_config[] __initdata = {
285 { OMAP_TAG_LCD, &ldp_lcd_config },
288 static void __init omap_ldp_init_irq(void)
290 omap_board_config = ldp_config;
291 omap_board_config_size = ARRAY_SIZE(ldp_config);
292 omap2_init_common_hw(NULL, NULL);
298 static struct twl4030_usb_data ldp_usb_data = {
299 .usb_mode = T2_USB_MODE_ULPI,
302 static struct twl4030_gpio_platform_data ldp_gpio_data = {
303 .gpio_base = OMAP_MAX_GPIO_LINES,
304 .irq_base = TWL4030_GPIO_IRQ_BASE,
305 .irq_end = TWL4030_GPIO_IRQ_END,
308 static struct twl4030_madc_platform_data ldp_madc_data = {
312 static struct regulator_consumer_supply ldp_vmmc1_supply = {
316 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
317 static struct regulator_init_data ldp_vmmc1 = {
321 .valid_modes_mask = REGULATOR_MODE_NORMAL
322 | REGULATOR_MODE_STANDBY,
323 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
324 | REGULATOR_CHANGE_MODE
325 | REGULATOR_CHANGE_STATUS,
327 .num_consumer_supplies = 1,
328 .consumer_supplies = &ldp_vmmc1_supply,
331 static struct twl4030_platform_data ldp_twldata = {
332 .irq_base = TWL4030_IRQ_BASE,
333 .irq_end = TWL4030_IRQ_END,
335 /* platform_data for children goes here */
336 .madc = &ldp_madc_data,
337 .usb = &ldp_usb_data,
339 .gpio = &ldp_gpio_data,
340 .keypad = &ldp_kp_twl4030_data,
343 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
345 I2C_BOARD_INFO("twl4030", 0x48),
346 .flags = I2C_CLIENT_WAKE,
347 .irq = INT_34XX_SYS_NIRQ,
348 .platform_data = &ldp_twldata,
352 static int __init omap_i2c_init(void)
354 omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
355 ARRAY_SIZE(ldp_i2c_boardinfo));
356 omap_register_i2c_bus(2, 400, NULL, 0);
357 omap_register_i2c_bus(3, 400, NULL, 0);
361 static struct twl4030_hsmmc_info mmc[] __initdata = {
371 static struct platform_device *ldp_devices[] __initdata = {
372 &ldp_smsc911x_device,
374 &ldp_gpio_keys_device,
377 static void __init omap_ldp_init(void)
380 platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
382 ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
383 spi_register_board_info(ldp_spi_board_info,
384 ARRAY_SIZE(ldp_spi_board_info));
389 twl4030_mmc_init(mmc);
390 /* link regulators to MMC adapters */
391 ldp_vmmc1_supply.dev = mmc[0].dev;
394 static void __init omap_ldp_map_io(void)
396 omap2_set_globals_343x();
397 omap2_map_common_io();
400 MACHINE_START(OMAP_LDP, "OMAP LDP board")
401 .phys_io = 0x48000000,
402 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
403 .boot_params = 0x80000100,
404 .map_io = omap_ldp_map_io,
405 .init_irq = omap_ldp_init_irq,
406 .init_machine = omap_ldp_init,
407 .timer = &omap_timer,