60a61ea759bf4262b3fd7e529650bf91a0118157
[linux-3.10.git] / arch / arm / mach-omap2 / board-overo.c
1 /*
2  * board-overo.c (Gumstix Overo)
3  *
4  * Initial code: Steve Sakoman <steve@sakoman.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18  * 02110-1301 USA
19  *
20  */
21
22 #include <linux/clk.h>
23 #include <linux/delay.h>
24 #include <linux/err.h>
25 #include <linux/init.h>
26 #include <linux/io.h>
27 #include <linux/gpio.h>
28 #include <linux/kernel.h>
29 #include <linux/platform_device.h>
30 #include <linux/i2c/twl.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/regulator/fixed.h>
33 #include <linux/spi/spi.h>
34
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/nand.h>
37 #include <linux/mtd/partitions.h>
38 #include <linux/mmc/host.h>
39
40 #include <asm/mach-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/flash.h>
43 #include <asm/mach/map.h>
44
45 #include <plat/board.h>
46 #include "common.h"
47 #include <video/omapdss.h>
48 #include <video/omap-panel-generic-dpi.h>
49 #include <video/omap-panel-dvi.h>
50 #include <plat/gpmc.h>
51 #include <mach/hardware.h>
52 #include <plat/nand.h>
53 #include <plat/mcspi.h>
54 #include <plat/mux.h>
55 #include <plat/usb.h>
56
57 #include "mux.h"
58 #include "sdram-micron-mt46h32m32lf-6.h"
59 #include "hsmmc.h"
60 #include "common-board-devices.h"
61
62 #define OVERO_GPIO_BT_XGATE     15
63 #define OVERO_GPIO_W2W_NRESET   16
64 #define OVERO_GPIO_PENDOWN      114
65 #define OVERO_GPIO_BT_NRESET    164
66 #define OVERO_GPIO_USBH_CPEN    168
67 #define OVERO_GPIO_USBH_NRESET  183
68
69 #define OVERO_SMSC911X_CS      5
70 #define OVERO_SMSC911X_GPIO    176
71 #define OVERO_SMSC911X2_CS     4
72 #define OVERO_SMSC911X2_GPIO   65
73
74 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
75         defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
76
77 /* fixed regulator for ads7846 */
78 static struct regulator_consumer_supply ads7846_supply[] = {
79         REGULATOR_SUPPLY("vcc", "spi1.0"),
80 };
81
82 static struct regulator_init_data vads7846_regulator = {
83         .constraints = {
84                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
85         },
86         .num_consumer_supplies  = ARRAY_SIZE(ads7846_supply),
87         .consumer_supplies      = ads7846_supply,
88 };
89
90 static struct fixed_voltage_config vads7846 = {
91         .supply_name            = "vads7846",
92         .microvolts             = 3300000, /* 3.3V */
93         .gpio                   = -EINVAL,
94         .startup_delay          = 0,
95         .init_data              = &vads7846_regulator,
96 };
97
98 static struct platform_device vads7846_device = {
99         .name           = "reg-fixed-voltage",
100         .id             = 1,
101         .dev = {
102                 .platform_data = &vads7846,
103         },
104 };
105
106 static void __init overo_ads7846_init(void)
107 {
108         omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
109         platform_device_register(&vads7846_device);
110 }
111
112 #else
113 static inline void __init overo_ads7846_init(void) { return; }
114 #endif
115
116 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
117
118 #include <linux/smsc911x.h>
119 #include <plat/gpmc-smsc911x.h>
120
121 static struct omap_smsc911x_platform_data smsc911x_cfg = {
122         .id             = 0,
123         .cs             = OVERO_SMSC911X_CS,
124         .gpio_irq       = OVERO_SMSC911X_GPIO,
125         .gpio_reset     = -EINVAL,
126         .flags          = SMSC911X_USE_32BIT,
127 };
128
129 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
130         .id             = 1,
131         .cs             = OVERO_SMSC911X2_CS,
132         .gpio_irq       = OVERO_SMSC911X2_GPIO,
133         .gpio_reset     = -EINVAL,
134         .flags          = SMSC911X_USE_32BIT,
135 };
136
137 static void __init overo_init_smsc911x(void)
138 {
139         gpmc_smsc911x_init(&smsc911x_cfg);
140         gpmc_smsc911x_init(&smsc911x2_cfg);
141 }
142
143 #else
144 static inline void __init overo_init_smsc911x(void) { return; }
145 #endif
146
147 /* DSS */
148 static int lcd_enabled;
149 static int dvi_enabled;
150
151 #define OVERO_GPIO_LCD_EN 144
152 #define OVERO_GPIO_LCD_BL 145
153
154 static struct gpio overo_dss_gpios[] __initdata = {
155         { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
156         { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
157 };
158
159 static void __init overo_display_init(void)
160 {
161         if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
162                 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
163                 return;
164         }
165
166         gpio_export(OVERO_GPIO_LCD_EN, 0);
167         gpio_export(OVERO_GPIO_LCD_BL, 0);
168 }
169
170 static int overo_panel_enable_dvi(struct omap_dss_device *dssdev)
171 {
172         if (lcd_enabled) {
173                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
174                 return -EINVAL;
175         }
176         dvi_enabled = 1;
177
178         return 0;
179 }
180
181 static void overo_panel_disable_dvi(struct omap_dss_device *dssdev)
182 {
183         dvi_enabled = 0;
184 }
185
186 static struct panel_dvi_platform_data dvi_panel = {
187         .platform_enable        = overo_panel_enable_dvi,
188         .platform_disable       = overo_panel_disable_dvi,
189         .i2c_bus_num            = 3,
190 };
191
192 static struct omap_dss_device overo_dvi_device = {
193         .name                   = "dvi",
194         .type                   = OMAP_DISPLAY_TYPE_DPI,
195         .driver_name            = "dvi",
196         .data                   = &dvi_panel,
197         .phy.dpi.data_lines     = 24,
198 };
199
200 static struct omap_dss_device overo_tv_device = {
201         .name = "tv",
202         .driver_name = "venc",
203         .type = OMAP_DISPLAY_TYPE_VENC,
204         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
205 };
206
207 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
208 {
209         if (dvi_enabled) {
210                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
211                 return -EINVAL;
212         }
213
214         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
215         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
216         lcd_enabled = 1;
217         return 0;
218 }
219
220 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
221 {
222         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
223         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
224         lcd_enabled = 0;
225 }
226
227 static struct panel_generic_dpi_data lcd43_panel = {
228         .name                   = "samsung_lte430wq_f0c",
229         .platform_enable        = overo_panel_enable_lcd,
230         .platform_disable       = overo_panel_disable_lcd,
231 };
232
233 static struct omap_dss_device overo_lcd43_device = {
234         .name                   = "lcd43",
235         .type                   = OMAP_DISPLAY_TYPE_DPI,
236         .driver_name            = "generic_dpi_panel",
237         .data                   = &lcd43_panel,
238         .phy.dpi.data_lines     = 24,
239 };
240
241 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
242         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
243 static struct omap_dss_device overo_lcd35_device = {
244         .type                   = OMAP_DISPLAY_TYPE_DPI,
245         .name                   = "lcd35",
246         .driver_name            = "lgphilips_lb035q02_panel",
247         .phy.dpi.data_lines     = 24,
248         .platform_enable        = overo_panel_enable_lcd,
249         .platform_disable       = overo_panel_disable_lcd,
250 };
251 #endif
252
253 static struct omap_dss_device *overo_dss_devices[] = {
254         &overo_dvi_device,
255         &overo_tv_device,
256 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
257         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
258         &overo_lcd35_device,
259 #endif
260         &overo_lcd43_device,
261 };
262
263 static struct omap_dss_board_info overo_dss_data = {
264         .num_devices    = ARRAY_SIZE(overo_dss_devices),
265         .devices        = overo_dss_devices,
266         .default_device = &overo_dvi_device,
267 };
268
269 static struct mtd_partition overo_nand_partitions[] = {
270         {
271                 .name           = "xloader",
272                 .offset         = 0,                    /* Offset = 0x00000 */
273                 .size           = 4 * NAND_BLOCK_SIZE,
274                 .mask_flags     = MTD_WRITEABLE
275         },
276         {
277                 .name           = "uboot",
278                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
279                 .size           = 14 * NAND_BLOCK_SIZE,
280         },
281         {
282                 .name           = "uboot environment",
283                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
284                 .size           = 2 * NAND_BLOCK_SIZE,
285         },
286         {
287                 .name           = "linux",
288                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
289                 .size           = 32 * NAND_BLOCK_SIZE,
290         },
291         {
292                 .name           = "rootfs",
293                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
294                 .size           = MTDPART_SIZ_FULL,
295         },
296 };
297
298 static struct omap2_hsmmc_info mmc[] = {
299         {
300                 .mmc            = 1,
301                 .caps           = MMC_CAP_4_BIT_DATA,
302                 .gpio_cd        = -EINVAL,
303                 .gpio_wp        = -EINVAL,
304         },
305         {
306                 .mmc            = 2,
307                 .caps           = MMC_CAP_4_BIT_DATA,
308                 .gpio_cd        = -EINVAL,
309                 .gpio_wp        = -EINVAL,
310                 .transceiver    = true,
311                 .ocr_mask       = 0x00100000,   /* 3.3V */
312         },
313         {}      /* Terminator */
314 };
315
316 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
317         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
318 };
319
320 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
321 #include <linux/leds.h>
322
323 static struct gpio_led gpio_leds[] = {
324         {
325                 .name                   = "overo:red:gpio21",
326                 .default_trigger        = "heartbeat",
327                 .gpio                   = 21,
328                 .active_low             = true,
329         },
330         {
331                 .name                   = "overo:blue:gpio22",
332                 .default_trigger        = "none",
333                 .gpio                   = 22,
334                 .active_low             = true,
335         },
336         {
337                 .name                   = "overo:blue:COM",
338                 .default_trigger        = "mmc0",
339                 .gpio                   = -EINVAL,      /* gets replaced */
340                 .active_low             = true,
341         },
342 };
343
344 static struct gpio_led_platform_data gpio_leds_pdata = {
345         .leds           = gpio_leds,
346         .num_leds       = ARRAY_SIZE(gpio_leds),
347 };
348
349 static struct platform_device gpio_leds_device = {
350         .name   = "leds-gpio",
351         .id     = -1,
352         .dev    = {
353                 .platform_data  = &gpio_leds_pdata,
354         },
355 };
356
357 static void __init overo_init_led(void)
358 {
359         platform_device_register(&gpio_leds_device);
360 }
361
362 #else
363 static inline void __init overo_init_led(void) { return; }
364 #endif
365
366 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
367 #include <linux/input.h>
368 #include <linux/gpio_keys.h>
369
370 static struct gpio_keys_button gpio_buttons[] = {
371         {
372                 .code                   = BTN_0,
373                 .gpio                   = 23,
374                 .desc                   = "button0",
375                 .wakeup                 = 1,
376         },
377         {
378                 .code                   = BTN_1,
379                 .gpio                   = 14,
380                 .desc                   = "button1",
381                 .wakeup                 = 1,
382         },
383 };
384
385 static struct gpio_keys_platform_data gpio_keys_pdata = {
386         .buttons        = gpio_buttons,
387         .nbuttons       = ARRAY_SIZE(gpio_buttons),
388 };
389
390 static struct platform_device gpio_keys_device = {
391         .name   = "gpio-keys",
392         .id     = -1,
393         .dev    = {
394                 .platform_data  = &gpio_keys_pdata,
395         },
396 };
397
398 static void __init overo_init_keys(void)
399 {
400         platform_device_register(&gpio_keys_device);
401 }
402
403 #else
404 static inline void __init overo_init_keys(void) { return; }
405 #endif
406
407 static int overo_twl_gpio_setup(struct device *dev,
408                 unsigned gpio, unsigned ngpio)
409 {
410         omap2_hsmmc_init(mmc);
411
412 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
413         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
414         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
415 #endif
416
417         return 0;
418 }
419
420 static struct twl4030_gpio_platform_data overo_gpio_data = {
421         .gpio_base      = OMAP_MAX_GPIO_LINES,
422         .irq_base       = TWL4030_GPIO_IRQ_BASE,
423         .irq_end        = TWL4030_GPIO_IRQ_END,
424         .use_leds       = true,
425         .setup          = overo_twl_gpio_setup,
426 };
427
428 static struct regulator_init_data overo_vmmc1 = {
429         .constraints = {
430                 .min_uV                 = 1850000,
431                 .max_uV                 = 3150000,
432                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
433                                         | REGULATOR_MODE_STANDBY,
434                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
435                                         | REGULATOR_CHANGE_MODE
436                                         | REGULATOR_CHANGE_STATUS,
437         },
438         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
439         .consumer_supplies      = overo_vmmc1_supply,
440 };
441
442 static struct twl4030_platform_data overo_twldata = {
443         .gpio           = &overo_gpio_data,
444         .vmmc1          = &overo_vmmc1,
445 };
446
447 static int __init overo_i2c_init(void)
448 {
449         omap3_pmic_get_config(&overo_twldata,
450                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
451                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
452
453         overo_twldata.vpll2->constraints.name = "VDVI";
454
455         omap3_pmic_init("tps65950", &overo_twldata);
456         /* i2c2 pins are used for gpio */
457         omap_register_i2c_bus(3, 400, NULL, 0);
458         return 0;
459 }
460
461 static struct spi_board_info overo_spi_board_info[] __initdata = {
462 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
463         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
464         {
465                 .modalias               = "lgphilips_lb035q02_panel-spi",
466                 .bus_num                = 1,
467                 .chip_select            = 1,
468                 .max_speed_hz           = 500000,
469                 .mode                   = SPI_MODE_3,
470         },
471 #endif
472 };
473
474 static int __init overo_spi_init(void)
475 {
476         overo_ads7846_init();
477         spi_register_board_info(overo_spi_board_info,
478                         ARRAY_SIZE(overo_spi_board_info));
479         return 0;
480 }
481
482 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
483         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
484         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
485         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
486         .phy_reset  = true,
487         .reset_gpio_port[0]  = -EINVAL,
488         .reset_gpio_port[1]  = OVERO_GPIO_USBH_NRESET,
489         .reset_gpio_port[2]  = -EINVAL
490 };
491
492 #ifdef CONFIG_OMAP_MUX
493 static struct omap_board_mux board_mux[] __initdata = {
494         { .reg_offset = OMAP_MUX_TERMINATOR },
495 };
496 #endif
497
498 static struct gpio overo_bt_gpios[] __initdata = {
499         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
500         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
501 };
502
503 static void __init overo_init(void)
504 {
505         int ret;
506
507         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
508         overo_i2c_init();
509         omap_display_init(&overo_dss_data);
510         omap_serial_init();
511         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
512                                   mt46h32m32lf6_sdrc_params);
513         omap_nand_flash_init(0, overo_nand_partitions,
514                              ARRAY_SIZE(overo_nand_partitions));
515         usb_musb_init(NULL);
516         usbhs_init(&usbhs_bdata);
517         overo_spi_init();
518         overo_init_smsc911x();
519         overo_display_init();
520         overo_init_led();
521         overo_init_keys();
522
523         /* Ensure SDRC pins are mux'd for self-refresh */
524         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
525         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
526
527         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
528                                "OVERO_GPIO_W2W_NRESET");
529         if (ret == 0) {
530                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
531                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
532                 udelay(10);
533                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
534         } else {
535                 printk(KERN_ERR "could not obtain gpio for "
536                                         "OVERO_GPIO_W2W_NRESET\n");
537         }
538
539         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
540         if (ret) {
541                 pr_err("%s: could not obtain BT gpios\n", __func__);
542         } else {
543                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
544                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
545                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
546                 mdelay(6);
547                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
548         }
549
550         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
551                                "OVERO_GPIO_USBH_CPEN");
552         if (ret == 0)
553                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
554         else
555                 printk(KERN_ERR "could not obtain gpio for "
556                                         "OVERO_GPIO_USBH_CPEN\n");
557 }
558
559 MACHINE_START(OVERO, "Gumstix Overo")
560         .atag_offset    = 0x100,
561         .reserve        = omap_reserve,
562         .map_io         = omap3_map_io,
563         .init_early     = omap35xx_init_early,
564         .init_irq       = omap3_init_irq,
565         .handle_irq     = omap3_intc_handle_irq,
566         .init_machine   = overo_init,
567         .timer          = &omap3_timer,
568 MACHINE_END