f9101407cd560f2c984cc0d498e5eb73a7f1bf1f
[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 #include <linux/usb/phy.h>
40
41 #include <linux/platform_data/mtd-nand-omap2.h>
42 #include <linux/platform_data/spi-omap2-mcspi.h>
43
44 #include <asm/mach-types.h>
45 #include <asm/mach/arch.h>
46 #include <asm/mach/flash.h>
47 #include <asm/mach/map.h>
48
49 #include <video/omapdss.h>
50 #include <video/omap-panel-data.h>
51
52 #include "common.h"
53 #include "mux.h"
54 #include "sdram-micron-mt46h32m32lf-6.h"
55 #include "gpmc.h"
56 #include "hsmmc.h"
57 #include "board-flash.h"
58 #include "common-board-devices.h"
59
60 #define NAND_CS                 0
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 "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 struct tfp410_platform_data dvi_panel = {
171         .i2c_bus_num            = 3,
172         .power_down_gpio        = -1,
173 };
174
175 static struct omap_dss_device overo_dvi_device = {
176         .name                   = "dvi",
177         .type                   = OMAP_DISPLAY_TYPE_DPI,
178         .driver_name            = "tfp410",
179         .data                   = &dvi_panel,
180         .phy.dpi.data_lines     = 24,
181 };
182
183 static struct omap_dss_device overo_tv_device = {
184         .name = "tv",
185         .driver_name = "venc",
186         .type = OMAP_DISPLAY_TYPE_VENC,
187         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
188 };
189
190 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
191 {
192         if (dvi_enabled) {
193                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
194                 return -EINVAL;
195         }
196
197         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
198         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
199         lcd_enabled = 1;
200         return 0;
201 }
202
203 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
204 {
205         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
206         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
207         lcd_enabled = 0;
208 }
209
210 static struct panel_generic_dpi_data lcd43_panel = {
211         .name                   = "samsung_lte430wq_f0c",
212         .platform_enable        = overo_panel_enable_lcd,
213         .platform_disable       = overo_panel_disable_lcd,
214 };
215
216 static struct omap_dss_device overo_lcd43_device = {
217         .name                   = "lcd43",
218         .type                   = OMAP_DISPLAY_TYPE_DPI,
219         .driver_name            = "generic_dpi_panel",
220         .data                   = &lcd43_panel,
221         .phy.dpi.data_lines     = 24,
222 };
223
224 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
225         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
226 static struct omap_dss_device overo_lcd35_device = {
227         .type                   = OMAP_DISPLAY_TYPE_DPI,
228         .name                   = "lcd35",
229         .driver_name            = "lgphilips_lb035q02_panel",
230         .phy.dpi.data_lines     = 24,
231         .platform_enable        = overo_panel_enable_lcd,
232         .platform_disable       = overo_panel_disable_lcd,
233 };
234 #endif
235
236 static struct omap_dss_device *overo_dss_devices[] = {
237         &overo_dvi_device,
238         &overo_tv_device,
239 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
240         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
241         &overo_lcd35_device,
242 #endif
243         &overo_lcd43_device,
244 };
245
246 static struct omap_dss_board_info overo_dss_data = {
247         .num_devices    = ARRAY_SIZE(overo_dss_devices),
248         .devices        = overo_dss_devices,
249         .default_device = &overo_dvi_device,
250 };
251
252 static struct mtd_partition overo_nand_partitions[] = {
253         {
254                 .name           = "xloader",
255                 .offset         = 0,                    /* Offset = 0x00000 */
256                 .size           = 4 * NAND_BLOCK_SIZE,
257                 .mask_flags     = MTD_WRITEABLE
258         },
259         {
260                 .name           = "uboot",
261                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
262                 .size           = 14 * NAND_BLOCK_SIZE,
263         },
264         {
265                 .name           = "uboot environment",
266                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
267                 .size           = 2 * NAND_BLOCK_SIZE,
268         },
269         {
270                 .name           = "linux",
271                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
272                 .size           = 32 * NAND_BLOCK_SIZE,
273         },
274         {
275                 .name           = "rootfs",
276                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
277                 .size           = MTDPART_SIZ_FULL,
278         },
279 };
280
281 static struct omap2_hsmmc_info mmc[] = {
282         {
283                 .mmc            = 1,
284                 .caps           = MMC_CAP_4_BIT_DATA,
285                 .gpio_cd        = -EINVAL,
286                 .gpio_wp        = -EINVAL,
287         },
288         {
289                 .mmc            = 2,
290                 .caps           = MMC_CAP_4_BIT_DATA,
291                 .gpio_cd        = -EINVAL,
292                 .gpio_wp        = -EINVAL,
293                 .transceiver    = true,
294                 .ocr_mask       = 0x00100000,   /* 3.3V */
295         },
296         {}      /* Terminator */
297 };
298
299 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
300         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
301 };
302
303 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
304 #include <linux/leds.h>
305
306 static struct gpio_led gpio_leds[] = {
307         {
308                 .name                   = "overo:red:gpio21",
309                 .default_trigger        = "heartbeat",
310                 .gpio                   = 21,
311                 .active_low             = true,
312         },
313         {
314                 .name                   = "overo:blue:gpio22",
315                 .default_trigger        = "none",
316                 .gpio                   = 22,
317                 .active_low             = true,
318         },
319         {
320                 .name                   = "overo:blue:COM",
321                 .default_trigger        = "mmc0",
322                 .gpio                   = -EINVAL,      /* gets replaced */
323                 .active_low             = true,
324         },
325 };
326
327 static struct gpio_led_platform_data gpio_leds_pdata = {
328         .leds           = gpio_leds,
329         .num_leds       = ARRAY_SIZE(gpio_leds),
330 };
331
332 static struct platform_device gpio_leds_device = {
333         .name   = "leds-gpio",
334         .id     = -1,
335         .dev    = {
336                 .platform_data  = &gpio_leds_pdata,
337         },
338 };
339
340 static void __init overo_init_led(void)
341 {
342         platform_device_register(&gpio_leds_device);
343 }
344
345 #else
346 static inline void __init overo_init_led(void) { return; }
347 #endif
348
349 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
350 #include <linux/input.h>
351 #include <linux/gpio_keys.h>
352
353 static struct gpio_keys_button gpio_buttons[] = {
354         {
355                 .code                   = BTN_0,
356                 .gpio                   = 23,
357                 .desc                   = "button0",
358                 .wakeup                 = 1,
359         },
360         {
361                 .code                   = BTN_1,
362                 .gpio                   = 14,
363                 .desc                   = "button1",
364                 .wakeup                 = 1,
365         },
366 };
367
368 static struct gpio_keys_platform_data gpio_keys_pdata = {
369         .buttons        = gpio_buttons,
370         .nbuttons       = ARRAY_SIZE(gpio_buttons),
371 };
372
373 static struct platform_device gpio_keys_device = {
374         .name   = "gpio-keys",
375         .id     = -1,
376         .dev    = {
377                 .platform_data  = &gpio_keys_pdata,
378         },
379 };
380
381 static void __init overo_init_keys(void)
382 {
383         platform_device_register(&gpio_keys_device);
384 }
385
386 #else
387 static inline void __init overo_init_keys(void) { return; }
388 #endif
389
390 static int overo_twl_gpio_setup(struct device *dev,
391                 unsigned gpio, unsigned ngpio)
392 {
393 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
394         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
395         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
396 #endif
397
398         return 0;
399 }
400
401 static struct twl4030_gpio_platform_data overo_gpio_data = {
402         .use_leds       = true,
403         .setup          = overo_twl_gpio_setup,
404 };
405
406 static struct regulator_init_data overo_vmmc1 = {
407         .constraints = {
408                 .min_uV                 = 1850000,
409                 .max_uV                 = 3150000,
410                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
411                                         | REGULATOR_MODE_STANDBY,
412                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
413                                         | REGULATOR_CHANGE_MODE
414                                         | REGULATOR_CHANGE_STATUS,
415         },
416         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
417         .consumer_supplies      = overo_vmmc1_supply,
418 };
419
420 static struct twl4030_platform_data overo_twldata = {
421         .gpio           = &overo_gpio_data,
422         .vmmc1          = &overo_vmmc1,
423 };
424
425 static int __init overo_i2c_init(void)
426 {
427         omap3_pmic_get_config(&overo_twldata,
428                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
429                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
430
431         overo_twldata.vpll2->constraints.name = "VDVI";
432
433         omap3_pmic_init("tps65950", &overo_twldata);
434         /* i2c2 pins are used for gpio */
435         omap_register_i2c_bus(3, 400, NULL, 0);
436         return 0;
437 }
438
439 static struct spi_board_info overo_spi_board_info[] __initdata = {
440 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
441         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
442         {
443                 .modalias               = "lgphilips_lb035q02_panel-spi",
444                 .bus_num                = 1,
445                 .chip_select            = 1,
446                 .max_speed_hz           = 500000,
447                 .mode                   = SPI_MODE_3,
448         },
449 #endif
450 };
451
452 static int __init overo_spi_init(void)
453 {
454         overo_ads7846_init();
455         spi_register_board_info(overo_spi_board_info,
456                         ARRAY_SIZE(overo_spi_board_info));
457         return 0;
458 }
459
460 static struct usbhs_phy_data phy_data[] __initdata = {
461         {
462                 .port = 2,
463                 .reset_gpio = OVERO_GPIO_USBH_NRESET,
464                 .vcc_gpio = -EINVAL,
465         },
466 };
467
468 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
469         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
470 };
471
472 #ifdef CONFIG_OMAP_MUX
473 static struct omap_board_mux board_mux[] __initdata = {
474         { .reg_offset = OMAP_MUX_TERMINATOR },
475 };
476 #endif
477
478 static struct gpio overo_bt_gpios[] __initdata = {
479         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
480         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
481 };
482
483 static struct regulator_consumer_supply dummy_supplies[] = {
484         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
485         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
486         REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
487         REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
488 };
489
490 static void __init overo_init(void)
491 {
492         int ret;
493
494         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
495         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
496         overo_i2c_init();
497         omap_hsmmc_init(mmc);
498         omap_display_init(&overo_dss_data);
499         omap_serial_init();
500         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
501                                   mt46h32m32lf6_sdrc_params);
502         board_nand_init(overo_nand_partitions,
503                         ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL);
504         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
505         usb_musb_init(NULL);
506
507         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
508         usbhs_init(&usbhs_bdata);
509         overo_spi_init();
510         overo_init_smsc911x();
511         overo_display_init();
512         overo_init_led();
513         overo_init_keys();
514         omap_twl4030_audio_init("overo", NULL);
515
516         /* Ensure SDRC pins are mux'd for self-refresh */
517         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
518         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
519
520         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
521                                "OVERO_GPIO_W2W_NRESET");
522         if (ret == 0) {
523                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
524                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
525                 udelay(10);
526                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
527         } else {
528                 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
529         }
530
531         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
532         if (ret) {
533                 pr_err("%s: could not obtain BT gpios\n", __func__);
534         } else {
535                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
536                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
537                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
538                 mdelay(6);
539                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
540         }
541
542         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
543                                "OVERO_GPIO_USBH_CPEN");
544         if (ret == 0)
545                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
546         else
547                 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
548 }
549
550 MACHINE_START(OVERO, "Gumstix Overo")
551         .atag_offset    = 0x100,
552         .reserve        = omap_reserve,
553         .map_io         = omap3_map_io,
554         .init_early     = omap35xx_init_early,
555         .init_irq       = omap3_init_irq,
556         .handle_irq     = omap3_intc_handle_irq,
557         .init_machine   = overo_init,
558         .init_late      = omap35xx_init_late,
559         .init_time      = omap3_sync32k_timer_init,
560         .restart        = omap3xxx_restart,
561 MACHINE_END