Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
[linux-2.6.git] / arch / arm / mach-omap2 / board-ldp.c
1 /*
2  * linux/arch/arm/mach-omap2/board-ldp.c
3  *
4  * Copyright (C) 2008 Texas Instruments Inc.
5  * Nishant Kamat <nskamat@ti.com>
6  *
7  * Modified from mach-omap2/board-3430sdp.c
8  *
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.
12  */
13
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/twl4030.h>
28 #include <linux/io.h>
29 #include <linux/smsc911x.h>
30
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35
36 #include <mach/mcspi.h>
37 #include <mach/gpio.h>
38 #include <mach/board.h>
39 #include <mach/common.h>
40 #include <mach/gpmc.h>
41
42 #include <asm/delay.h>
43 #include <mach/control.h>
44 #include <mach/usb.h>
45
46 #include "mmc-twl4030.h"
47
48 #define LDP_SMSC911X_CS         1
49 #define LDP_SMSC911X_GPIO       152
50 #define DEBUG_BASE              0x08000000
51 #define LDP_ETHR_START          DEBUG_BASE
52
53 static struct resource ldp_smsc911x_resources[] = {
54         [0] = {
55                 .start  = LDP_ETHR_START,
56                 .end    = LDP_ETHR_START + SZ_4K,
57                 .flags  = IORESOURCE_MEM,
58         },
59         [1] = {
60                 .start  = 0,
61                 .end    = 0,
62                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
63         },
64 };
65
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,
71 };
72
73 static struct platform_device ldp_smsc911x_device = {
74         .name           = "smsc911x",
75         .id             = -1,
76         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
77         .resource       = ldp_smsc911x_resources,
78         .dev            = {
79                 .platform_data = &ldp_smsc911x_config,
80         },
81 };
82
83 static int board_keymap[] = {
84         KEY(0, 0, KEY_1),
85         KEY(1, 0, KEY_2),
86         KEY(2, 0, KEY_3),
87         KEY(0, 1, KEY_4),
88         KEY(1, 1, KEY_5),
89         KEY(2, 1, KEY_6),
90         KEY(3, 1, KEY_F5),
91         KEY(0, 2, KEY_7),
92         KEY(1, 2, KEY_8),
93         KEY(2, 2, KEY_9),
94         KEY(3, 2, KEY_F6),
95         KEY(0, 3, KEY_F7),
96         KEY(1, 3, KEY_0),
97         KEY(2, 3, KEY_F8),
98         PERSISTENT_KEY(4, 5),
99         KEY(4, 4, KEY_VOLUMEUP),
100         KEY(5, 5, KEY_VOLUMEDOWN),
101         0
102 };
103
104 static struct matrix_keymap_data board_map_data = {
105         .keymap                 = board_keymap,
106         .keymap_size            = ARRAY_SIZE(board_keymap),
107 };
108
109 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
110         .keymap_data    = &board_map_data,
111         .rows           = 6,
112         .cols           = 6,
113         .rep            = 1,
114 };
115
116 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
117         [0] = {
118                 .code                   = KEY_ENTER,
119                 .gpio                   = 101,
120                 .desc                   = "enter sw",
121                 .active_low             = 1,
122                 .debounce_interval      = 30,
123         },
124         [1] = {
125                 .code                   = KEY_F1,
126                 .gpio                   = 102,
127                 .desc                   = "func 1",
128                 .active_low             = 1,
129                 .debounce_interval      = 30,
130         },
131         [2] = {
132                 .code                   = KEY_F2,
133                 .gpio                   = 103,
134                 .desc                   = "func 2",
135                 .active_low             = 1,
136                 .debounce_interval      = 30,
137         },
138         [3] = {
139                 .code                   = KEY_F3,
140                 .gpio                   = 104,
141                 .desc                   = "func 3",
142                 .active_low             = 1,
143                 .debounce_interval      = 30,
144         },
145         [4] = {
146                 .code                   = KEY_F4,
147                 .gpio                   = 105,
148                 .desc                   = "func 4",
149                 .active_low             = 1,
150                 .debounce_interval      = 30,
151         },
152         [5] = {
153                 .code                   = KEY_LEFT,
154                 .gpio                   = 106,
155                 .desc                   = "left sw",
156                 .active_low             = 1,
157                 .debounce_interval      = 30,
158         },
159         [6] = {
160                 .code                   = KEY_RIGHT,
161                 .gpio                   = 107,
162                 .desc                   = "right sw",
163                 .active_low             = 1,
164                 .debounce_interval      = 30,
165         },
166         [7] = {
167                 .code                   = KEY_UP,
168                 .gpio                   = 108,
169                 .desc                   = "up sw",
170                 .active_low             = 1,
171                 .debounce_interval      = 30,
172         },
173         [8] = {
174                 .code                   = KEY_DOWN,
175                 .gpio                   = 109,
176                 .desc                   = "down sw",
177                 .active_low             = 1,
178                 .debounce_interval      = 30,
179         },
180 };
181
182 static struct gpio_keys_platform_data ldp_gpio_keys = {
183         .buttons                = ldp_gpio_keys_buttons,
184         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
185         .rep                    = 1,
186 };
187
188 static struct platform_device ldp_gpio_keys_device = {
189         .name           = "gpio-keys",
190         .id             = -1,
191         .dev            = {
192                 .platform_data  = &ldp_gpio_keys,
193         },
194 };
195
196 static int ts_gpio;
197
198 /**
199  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
200  *
201  * @return - void. If request gpio fails then Flag KERN_ERR.
202  */
203 static void ads7846_dev_init(void)
204 {
205         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
206                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
207                 return;
208         }
209
210         gpio_direction_input(ts_gpio);
211         omap_set_gpio_debounce(ts_gpio, 1);
212         omap_set_gpio_debounce_time(ts_gpio, 0xa);
213 }
214
215 static int ads7846_get_pendown_state(void)
216 {
217         return !gpio_get_value(ts_gpio);
218 }
219
220 static struct ads7846_platform_data tsc2046_config __initdata = {
221         .get_pendown_state      = ads7846_get_pendown_state,
222         .keep_vref_on           = 1,
223 };
224
225 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
226         .turbo_mode     = 0,
227         .single_channel = 1,    /* 0: slave, 1: master */
228 };
229
230 static struct spi_board_info ldp_spi_board_info[] __initdata = {
231         [0] = {
232                 /*
233                  * TSC2046 operates at a max freqency of 2MHz, so
234                  * operate slightly below at 1.5MHz
235                  */
236                 .modalias               = "ads7846",
237                 .bus_num                = 1,
238                 .chip_select            = 0,
239                 .max_speed_hz           = 1500000,
240                 .controller_data        = &tsc2046_mcspi_config,
241                 .irq                    = 0,
242                 .platform_data          = &tsc2046_config,
243         },
244 };
245
246 static inline void __init ldp_init_smsc911x(void)
247 {
248         int eth_cs;
249         unsigned long cs_mem_base;
250         int eth_gpio = 0;
251
252         eth_cs = LDP_SMSC911X_CS;
253
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");
256                 return;
257         }
258
259         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
260         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
261         udelay(100);
262
263         eth_gpio = LDP_SMSC911X_GPIO;
264
265         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
266
267         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
268                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
269                                 eth_gpio);
270                 return;
271         }
272         gpio_direction_input(eth_gpio);
273 }
274
275 static struct platform_device ldp_lcd_device = {
276         .name           = "ldp_lcd",
277         .id             = -1,
278 };
279
280 static struct omap_lcd_config ldp_lcd_config __initdata = {
281         .ctrl_name      = "internal",
282 };
283
284 static struct omap_board_config_kernel ldp_config[] __initdata = {
285         { OMAP_TAG_LCD,         &ldp_lcd_config },
286 };
287
288 static void __init omap_ldp_init_irq(void)
289 {
290         omap_board_config = ldp_config;
291         omap_board_config_size = ARRAY_SIZE(ldp_config);
292         omap2_init_common_hw(NULL, NULL);
293         omap_init_irq();
294         omap_gpio_init();
295         ldp_init_smsc911x();
296 }
297
298 static struct twl4030_usb_data ldp_usb_data = {
299         .usb_mode       = T2_USB_MODE_ULPI,
300 };
301
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,
306 };
307
308 static struct twl4030_madc_platform_data ldp_madc_data = {
309         .irq_line       = 1,
310 };
311
312 static struct regulator_consumer_supply ldp_vmmc1_supply = {
313         .supply                 = "vmmc",
314 };
315
316 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
317 static struct regulator_init_data ldp_vmmc1 = {
318         .constraints = {
319                 .min_uV                 = 1850000,
320                 .max_uV                 = 3150000,
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,
326         },
327         .num_consumer_supplies  = 1,
328         .consumer_supplies      = &ldp_vmmc1_supply,
329 };
330
331 static struct twl4030_platform_data ldp_twldata = {
332         .irq_base       = TWL4030_IRQ_BASE,
333         .irq_end        = TWL4030_IRQ_END,
334
335         /* platform_data for children goes here */
336         .madc           = &ldp_madc_data,
337         .usb            = &ldp_usb_data,
338         .vmmc1          = &ldp_vmmc1,
339         .gpio           = &ldp_gpio_data,
340         .keypad         = &ldp_kp_twl4030_data,
341 };
342
343 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
344         {
345                 I2C_BOARD_INFO("twl4030", 0x48),
346                 .flags = I2C_CLIENT_WAKE,
347                 .irq = INT_34XX_SYS_NIRQ,
348                 .platform_data = &ldp_twldata,
349         },
350 };
351
352 static int __init omap_i2c_init(void)
353 {
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);
358         return 0;
359 }
360
361 static struct twl4030_hsmmc_info mmc[] __initdata = {
362         {
363                 .mmc            = 1,
364                 .wires          = 4,
365                 .gpio_cd        = -EINVAL,
366                 .gpio_wp        = -EINVAL,
367         },
368         {}      /* Terminator */
369 };
370
371 static struct platform_device *ldp_devices[] __initdata = {
372         &ldp_smsc911x_device,
373         &ldp_lcd_device,
374         &ldp_gpio_keys_device,
375 };
376
377 static void __init omap_ldp_init(void)
378 {
379         omap_i2c_init();
380         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
381         ts_gpio = 54;
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));
385         ads7846_dev_init();
386         omap_serial_init();
387         usb_musb_init();
388
389         twl4030_mmc_init(mmc);
390         /* link regulators to MMC adapters */
391         ldp_vmmc1_supply.dev = mmc[0].dev;
392 }
393
394 static void __init omap_ldp_map_io(void)
395 {
396         omap2_set_globals_343x();
397         omap2_map_common_io();
398 }
399
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,
408 MACHINE_END