Merge branch 'depends/rmk/devel-stable' into next/cleanup
[linux-3.10.git] / arch / arm / mach-omap2 / board-omap3touchbook.c
1 /*
2  * linux/arch/arm/mach-omap2/board-omap3touchbook.c
3  *
4  * Copyright (C) 2009 Always Innovating
5  *
6  * Modified from mach-omap2/board-omap3beagleboard.c
7  *
8  * Initial code: GrĂ©goire Gentil, Tim Yamin
9  *
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.
13  */
14
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>
21 #include <linux/io.h>
22 #include <linux/leds.h>
23 #include <linux/gpio.h>
24 #include <linux/input.h>
25 #include <linux/gpio_keys.h>
26
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/mtd/nand.h>
30 #include <linux/mmc/host.h>
31
32 #include <plat/mcspi.h>
33 #include <linux/spi/spi.h>
34
35 #include <linux/spi/ads7846.h>
36
37 #include <linux/regulator/machine.h>
38 #include <linux/i2c/twl.h>
39
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
46 #include <plat/board.h>
47 #include <plat/common.h>
48 #include <plat/gpmc.h>
49 #include <plat/nand.h>
50 #include <plat/usb.h>
51
52 #include "mux.h"
53 #include "hsmmc.h"
54 #include "common-board-devices.h"
55
56 #include <asm/setup.h>
57
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
62
63 static unsigned long touchbook_revision;
64
65 static struct mtd_partition omap3touchbook_nand_partitions[] = {
66         /* All the partition sizes are listed in terms of NAND block size */
67         {
68                 .name           = "X-Loader",
69                 .offset         = 0,
70                 .size           = 4 * NAND_BLOCK_SIZE,
71                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
72         },
73         {
74                 .name           = "U-Boot",
75                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
76                 .size           = 15 * NAND_BLOCK_SIZE,
77                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
78         },
79         {
80                 .name           = "U-Boot Env",
81                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
82                 .size           = 1 * NAND_BLOCK_SIZE,
83         },
84         {
85                 .name           = "Kernel",
86                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
87                 .size           = 32 * NAND_BLOCK_SIZE,
88         },
89         {
90                 .name           = "File System",
91                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
92                 .size           = MTDPART_SIZ_FULL,
93         },
94 };
95
96 #include "sdram-micron-mt46h32m32lf-6.h"
97
98 static struct omap2_hsmmc_info mmc[] = {
99         {
100                 .mmc            = 1,
101                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
102                 .gpio_wp        = 29,
103         },
104         {}      /* Terminator */
105 };
106
107 static struct platform_device omap3_touchbook_lcd_device = {
108         .name           = "omap3touchbook_lcd",
109         .id             = -1,
110 };
111
112 static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
113         .ctrl_name      = "internal",
114 };
115
116 static struct regulator_consumer_supply touchbook_vmmc1_supply[] = {
117         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
118 };
119
120 static struct regulator_consumer_supply touchbook_vsim_supply[] = {
121         REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
122 };
123
124 static struct gpio_led gpio_leds[];
125
126 static int touchbook_twl_gpio_setup(struct device *dev,
127                 unsigned gpio, unsigned ngpio)
128 {
129         if (system_rev >= 0x20 && system_rev <= 0x34301000) {
130                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
131                 mmc[0].gpio_wp = 23;
132         } else {
133                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
134         }
135         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
136         mmc[0].gpio_cd = gpio + 0;
137         omap2_hsmmc_init(mmc);
138
139         /* REVISIT: need ehci-omap hooks for external VBUS
140          * power switch and overcurrent detect
141          */
142         gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC");
143
144         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
145         gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
146                          "nEN_USB_PWR");
147
148         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
149         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
150
151         return 0;
152 }
153
154 static struct twl4030_gpio_platform_data touchbook_gpio_data = {
155         .gpio_base      = OMAP_MAX_GPIO_LINES,
156         .irq_base       = TWL4030_GPIO_IRQ_BASE,
157         .irq_end        = TWL4030_GPIO_IRQ_END,
158         .use_leds       = true,
159         .pullups        = BIT(1),
160         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
161                                 | BIT(15) | BIT(16) | BIT(17),
162         .setup          = touchbook_twl_gpio_setup,
163 };
164
165 static struct regulator_consumer_supply touchbook_vdac_supply[] = {
166 {
167         .supply         = "vdac",
168         .dev            = &omap3_touchbook_lcd_device.dev,
169 },
170 };
171
172 static struct regulator_consumer_supply touchbook_vdvi_supply[] = {
173 {
174         .supply         = "vdvi",
175         .dev            = &omap3_touchbook_lcd_device.dev,
176 },
177 };
178
179 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
180 static struct regulator_init_data touchbook_vmmc1 = {
181         .constraints = {
182                 .min_uV                 = 1850000,
183                 .max_uV                 = 3150000,
184                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
185                                         | REGULATOR_MODE_STANDBY,
186                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
187                                         | REGULATOR_CHANGE_MODE
188                                         | REGULATOR_CHANGE_STATUS,
189         },
190         .num_consumer_supplies  = ARRAY_SIZE(touchbook_vmmc1_supply),
191         .consumer_supplies      = touchbook_vmmc1_supply,
192 };
193
194 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
195 static struct regulator_init_data touchbook_vsim = {
196         .constraints = {
197                 .min_uV                 = 1800000,
198                 .max_uV                 = 3000000,
199                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
200                                         | REGULATOR_MODE_STANDBY,
201                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
202                                         | REGULATOR_CHANGE_MODE
203                                         | REGULATOR_CHANGE_STATUS,
204         },
205         .num_consumer_supplies  = ARRAY_SIZE(touchbook_vsim_supply),
206         .consumer_supplies      = touchbook_vsim_supply,
207 };
208
209 static struct twl4030_platform_data touchbook_twldata = {
210         /* platform_data for children goes here */
211         .gpio           = &touchbook_gpio_data,
212         .vmmc1          = &touchbook_vmmc1,
213         .vsim           = &touchbook_vsim,
214 };
215
216 static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
217         {
218                 I2C_BOARD_INFO("bq27200", 0x55),
219         },
220 };
221
222 static int __init omap3_touchbook_i2c_init(void)
223 {
224         /* Standard TouchBook bus */
225         omap3_pmic_get_config(&touchbook_twldata,
226                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
227                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
228
229         touchbook_twldata.vdac->num_consumer_supplies =
230                                         ARRAY_SIZE(touchbook_vdac_supply);
231         touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply;
232
233         touchbook_twldata.vpll2->constraints.name = "VDVI";
234         touchbook_twldata.vpll2->num_consumer_supplies =
235                                         ARRAY_SIZE(touchbook_vdvi_supply);
236         touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply;
237
238         omap3_pmic_init("twl4030", &touchbook_twldata);
239         /* Additional TouchBook bus */
240         omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
241                         ARRAY_SIZE(touchBook_i2c_boardinfo));
242
243         return 0;
244 }
245
246 static struct ads7846_platform_data ads7846_pdata = {
247         .x_min                  = 100,
248         .y_min                  = 265,
249         .x_max                  = 3950,
250         .y_max                  = 3750,
251         .x_plate_ohms           = 40,
252         .pressure_max           = 255,
253         .debounce_max           = 10,
254         .debounce_tol           = 5,
255         .debounce_rep           = 1,
256         .gpio_pendown           = OMAP3_TS_GPIO,
257         .keep_vref_on           = 1,
258 };
259
260 static struct gpio_led gpio_leds[] = {
261         {
262                 .name                   = "touchbook::usr0",
263                 .default_trigger        = "heartbeat",
264                 .gpio                   = 150,
265         },
266         {
267                 .name                   = "touchbook::usr1",
268                 .default_trigger        = "mmc0",
269                 .gpio                   = 149,
270         },
271         {
272                 .name                   = "touchbook::pmu_stat",
273                 .gpio                   = -EINVAL,      /* gets replaced */
274                 .active_low             = true,
275         },
276 };
277
278 static struct gpio_led_platform_data gpio_led_info = {
279         .leds           = gpio_leds,
280         .num_leds       = ARRAY_SIZE(gpio_leds),
281 };
282
283 static struct platform_device leds_gpio = {
284         .name   = "leds-gpio",
285         .id     = -1,
286         .dev    = {
287                 .platform_data  = &gpio_led_info,
288         },
289 };
290
291 static struct gpio_keys_button gpio_buttons[] = {
292         {
293                 .code                   = BTN_EXTRA,
294                 .gpio                   = 7,
295                 .desc                   = "user",
296                 .wakeup                 = 1,
297         },
298         {
299                 .code                   = KEY_POWER,
300                 .gpio                   = 183,
301                 .desc                   = "power",
302                 .wakeup                 = 1,
303         },
304 };
305
306 static struct gpio_keys_platform_data gpio_key_info = {
307         .buttons        = gpio_buttons,
308         .nbuttons       = ARRAY_SIZE(gpio_buttons),
309 };
310
311 static struct platform_device keys_gpio = {
312         .name   = "gpio-keys",
313         .id     = -1,
314         .dev    = {
315                 .platform_data  = &gpio_key_info,
316         },
317 };
318
319 static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
320         { OMAP_TAG_LCD,         &omap3_touchbook_lcd_config },
321 };
322
323 #ifdef CONFIG_OMAP_MUX
324 static struct omap_board_mux board_mux[] __initdata = {
325         { .reg_offset = OMAP_MUX_TERMINATOR },
326 };
327 #endif
328
329 static struct platform_device *omap3_touchbook_devices[] __initdata = {
330         &omap3_touchbook_lcd_device,
331         &leds_gpio,
332         &keys_gpio,
333 };
334
335 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
336
337         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
338         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
339         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
340
341         .phy_reset  = true,
342         .reset_gpio_port[0]  = -EINVAL,
343         .reset_gpio_port[1]  = 147,
344         .reset_gpio_port[2]  = -EINVAL
345 };
346
347 static void omap3_touchbook_poweroff(void)
348 {
349         int pwr_off = TB_KILL_POWER_GPIO;
350
351         if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0)
352                 printk(KERN_ERR "Unable to get kill power GPIO\n");
353 }
354
355 static int __init early_touchbook_revision(char *p)
356 {
357         if (!p)
358                 return 0;
359
360         return strict_strtoul(p, 10, &touchbook_revision);
361 }
362 early_param("tbr", early_touchbook_revision);
363
364 static void __init omap3_touchbook_init(void)
365 {
366         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
367         omap_board_config = omap3_touchbook_config;
368         omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
369
370         pm_power_off = omap3_touchbook_poweroff;
371
372         omap3_touchbook_i2c_init();
373         platform_add_devices(omap3_touchbook_devices,
374                         ARRAY_SIZE(omap3_touchbook_devices));
375         omap_serial_init();
376         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
377                                   mt46h32m32lf6_sdrc_params);
378
379         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
380         /* REVISIT leave DVI powered down until it's needed ... */
381         gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
382
383         /* Touchscreen and accelerometer */
384         omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
385         usb_musb_init(NULL);
386         usbhs_init(&usbhs_bdata);
387         omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions,
388                              ARRAY_SIZE(omap3touchbook_nand_partitions));
389
390         /* Ensure SDRC pins are mux'd for self-refresh */
391         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
392         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
393 }
394
395 MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
396         /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
397         .atag_offset    = 0x100,
398         .reserve        = omap_reserve,
399         .map_io         = omap3_map_io,
400         .init_early     = omap3430_init_early,
401         .init_irq       = omap3_init_irq,
402         .init_machine   = omap3_touchbook_init,
403         .timer          = &omap3_secure_timer,
404 MACHINE_END