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/arch/arm/mach-omap2/board-overo.c

https://github.com/AICP/kernel_asus_grouper
C | 571 lines | 470 code | 76 blank | 25 comment | 18 complexity | 9c48058923ad90fcc0b80dfb0f50c14d MD5 | raw file
  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 <plat/common.h>
 47#include <video/omapdss.h>
 48#include <video/omap-panel-generic-dpi.h>
 49#include <plat/gpmc.h>
 50#include <mach/hardware.h>
 51#include <plat/nand.h>
 52#include <plat/mcspi.h>
 53#include <plat/mux.h>
 54#include <plat/usb.h>
 55
 56#include "mux.h"
 57#include "sdram-micron-mt46h32m32lf-6.h"
 58#include "hsmmc.h"
 59#include "common-board-devices.h"
 60
 61#define OVERO_GPIO_BT_XGATE	15
 62#define OVERO_GPIO_W2W_NRESET	16
 63#define OVERO_GPIO_PENDOWN	114
 64#define OVERO_GPIO_BT_NRESET	164
 65#define OVERO_GPIO_USBH_CPEN	168
 66#define OVERO_GPIO_USBH_NRESET	183
 67
 68#define OVERO_SMSC911X_CS      5
 69#define OVERO_SMSC911X_GPIO    176
 70#define OVERO_SMSC911X2_CS     4
 71#define OVERO_SMSC911X2_GPIO   65
 72
 73#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
 74	defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 75
 76/* fixed regulator for ads7846 */
 77static struct regulator_consumer_supply ads7846_supply[] = {
 78	REGULATOR_SUPPLY("vcc", "spi1.0"),
 79};
 80
 81static struct regulator_init_data vads7846_regulator = {
 82	.constraints = {
 83		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,
 84	},
 85	.num_consumer_supplies	= ARRAY_SIZE(ads7846_supply),
 86	.consumer_supplies	= ads7846_supply,
 87};
 88
 89static struct fixed_voltage_config vads7846 = {
 90	.supply_name		= "vads7846",
 91	.microvolts		= 3300000, /* 3.3V */
 92	.gpio			= -EINVAL,
 93	.startup_delay		= 0,
 94	.init_data		= &vads7846_regulator,
 95};
 96
 97static struct platform_device vads7846_device = {
 98	.name		= "reg-fixed-voltage",
 99	.id		= 1,
100	.dev = {
101		.platform_data = &vads7846,
102	},
103};
104
105static void __init overo_ads7846_init(void)
106{
107	omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
108	platform_device_register(&vads7846_device);
109}
110
111#else
112static inline void __init overo_ads7846_init(void) { return; }
113#endif
114
115#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
116
117#include <linux/smsc911x.h>
118#include <plat/gpmc-smsc911x.h>
119
120static struct omap_smsc911x_platform_data smsc911x_cfg = {
121	.id		= 0,
122	.cs             = OVERO_SMSC911X_CS,
123	.gpio_irq       = OVERO_SMSC911X_GPIO,
124	.gpio_reset     = -EINVAL,
125	.flags		= SMSC911X_USE_32BIT,
126};
127
128static struct omap_smsc911x_platform_data smsc911x2_cfg = {
129	.id		= 1,
130	.cs             = OVERO_SMSC911X2_CS,
131	.gpio_irq       = OVERO_SMSC911X2_GPIO,
132	.gpio_reset     = -EINVAL,
133	.flags		= SMSC911X_USE_32BIT,
134};
135
136static void __init overo_init_smsc911x(void)
137{
138	gpmc_smsc911x_init(&smsc911x_cfg);
139	gpmc_smsc911x_init(&smsc911x2_cfg);
140}
141
142#else
143static inline void __init overo_init_smsc911x(void) { return; }
144#endif
145
146/* DSS */
147static int lcd_enabled;
148static int dvi_enabled;
149
150#define OVERO_GPIO_LCD_EN 144
151#define OVERO_GPIO_LCD_BL 145
152
153static struct gpio overo_dss_gpios[] __initdata = {
154	{ OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
155	{ OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
156};
157
158static void __init overo_display_init(void)
159{
160	if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
161		printk(KERN_ERR "could not obtain DSS control GPIOs\n");
162		return;
163	}
164
165	gpio_export(OVERO_GPIO_LCD_EN, 0);
166	gpio_export(OVERO_GPIO_LCD_BL, 0);
167}
168
169static int overo_panel_enable_dvi(struct omap_dss_device *dssdev)
170{
171	if (lcd_enabled) {
172		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
173		return -EINVAL;
174	}
175	dvi_enabled = 1;
176
177	return 0;
178}
179
180static void overo_panel_disable_dvi(struct omap_dss_device *dssdev)
181{
182	dvi_enabled = 0;
183}
184
185static struct panel_generic_dpi_data dvi_panel = {
186	.name			= "generic",
187	.platform_enable	= overo_panel_enable_dvi,
188	.platform_disable	= overo_panel_disable_dvi,
189};
190
191static struct omap_dss_device overo_dvi_device = {
192	.name			= "dvi",
193	.type			= OMAP_DISPLAY_TYPE_DPI,
194	.driver_name		= "generic_dpi_panel",
195	.data			= &dvi_panel,
196	.phy.dpi.data_lines	= 24,
197};
198
199static struct omap_dss_device overo_tv_device = {
200	.name = "tv",
201	.driver_name = "venc",
202	.type = OMAP_DISPLAY_TYPE_VENC,
203	.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
204};
205
206static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
207{
208	if (dvi_enabled) {
209		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
210		return -EINVAL;
211	}
212
213	gpio_set_value(OVERO_GPIO_LCD_EN, 1);
214	gpio_set_value(OVERO_GPIO_LCD_BL, 1);
215	lcd_enabled = 1;
216	return 0;
217}
218
219static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
220{
221	gpio_set_value(OVERO_GPIO_LCD_EN, 0);
222	gpio_set_value(OVERO_GPIO_LCD_BL, 0);
223	lcd_enabled = 0;
224}
225
226static struct panel_generic_dpi_data lcd43_panel = {
227	.name			= "samsung_lte430wq_f0c",
228	.platform_enable	= overo_panel_enable_lcd,
229	.platform_disable	= overo_panel_disable_lcd,
230};
231
232static struct omap_dss_device overo_lcd43_device = {
233	.name			= "lcd43",
234	.type			= OMAP_DISPLAY_TYPE_DPI,
235	.driver_name		= "generic_dpi_panel",
236	.data			= &lcd43_panel,
237	.phy.dpi.data_lines	= 24,
238};
239
240#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
241	defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
242static struct omap_dss_device overo_lcd35_device = {
243	.type			= OMAP_DISPLAY_TYPE_DPI,
244	.name			= "lcd35",
245	.driver_name		= "lgphilips_lb035q02_panel",
246	.phy.dpi.data_lines	= 24,
247	.platform_enable	= overo_panel_enable_lcd,
248	.platform_disable	= overo_panel_disable_lcd,
249};
250#endif
251
252static struct omap_dss_device *overo_dss_devices[] = {
253	&overo_dvi_device,
254	&overo_tv_device,
255#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
256	defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
257	&overo_lcd35_device,
258#endif
259	&overo_lcd43_device,
260};
261
262static struct omap_dss_board_info overo_dss_data = {
263	.num_devices	= ARRAY_SIZE(overo_dss_devices),
264	.devices	= overo_dss_devices,
265	.default_device	= &overo_dvi_device,
266};
267
268static struct mtd_partition overo_nand_partitions[] = {
269	{
270		.name           = "xloader",
271		.offset         = 0,			/* Offset = 0x00000 */
272		.size           = 4 * NAND_BLOCK_SIZE,
273		.mask_flags     = MTD_WRITEABLE
274	},
275	{
276		.name           = "uboot",
277		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
278		.size           = 14 * NAND_BLOCK_SIZE,
279	},
280	{
281		.name           = "uboot environment",
282		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x240000 */
283		.size           = 2 * NAND_BLOCK_SIZE,
284	},
285	{
286		.name           = "linux",
287		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
288		.size           = 32 * NAND_BLOCK_SIZE,
289	},
290	{
291		.name           = "rootfs",
292		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
293		.size           = MTDPART_SIZ_FULL,
294	},
295};
296
297static struct omap2_hsmmc_info mmc[] = {
298	{
299		.mmc		= 1,
300		.caps		= MMC_CAP_4_BIT_DATA,
301		.gpio_cd	= -EINVAL,
302		.gpio_wp	= -EINVAL,
303	},
304	{
305		.mmc		= 2,
306		.caps		= MMC_CAP_4_BIT_DATA,
307		.gpio_cd	= -EINVAL,
308		.gpio_wp	= -EINVAL,
309		.transceiver	= true,
310		.ocr_mask	= 0x00100000,	/* 3.3V */
311	},
312	{}	/* Terminator */
313};
314
315static struct regulator_consumer_supply overo_vmmc1_supply[] = {
316	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
317};
318
319#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
320#include <linux/leds.h>
321
322static struct gpio_led gpio_leds[] = {
323	{
324		.name			= "overo:red:gpio21",
325		.default_trigger	= "heartbeat",
326		.gpio			= 21,
327		.active_low		= true,
328	},
329	{
330		.name			= "overo:blue:gpio22",
331		.default_trigger	= "none",
332		.gpio			= 22,
333		.active_low		= true,
334	},
335	{
336		.name			= "overo:blue:COM",
337		.default_trigger	= "mmc0",
338		.gpio			= -EINVAL,	/* gets replaced */
339		.active_low		= true,
340	},
341};
342
343static struct gpio_led_platform_data gpio_leds_pdata = {
344	.leds		= gpio_leds,
345	.num_leds	= ARRAY_SIZE(gpio_leds),
346};
347
348static struct platform_device gpio_leds_device = {
349	.name	= "leds-gpio",
350	.id	= -1,
351	.dev	= {
352		.platform_data	= &gpio_leds_pdata,
353	},
354};
355
356static void __init overo_init_led(void)
357{
358	platform_device_register(&gpio_leds_device);
359}
360
361#else
362static inline void __init overo_init_led(void) { return; }
363#endif
364
365#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
366#include <linux/input.h>
367#include <linux/gpio_keys.h>
368
369static struct gpio_keys_button gpio_buttons[] = {
370	{
371		.code			= BTN_0,
372		.gpio			= 23,
373		.desc			= "button0",
374		.wakeup			= 1,
375	},
376	{
377		.code			= BTN_1,
378		.gpio			= 14,
379		.desc			= "button1",
380		.wakeup			= 1,
381	},
382};
383
384static struct gpio_keys_platform_data gpio_keys_pdata = {
385	.buttons	= gpio_buttons,
386	.nbuttons	= ARRAY_SIZE(gpio_buttons),
387};
388
389static struct platform_device gpio_keys_device = {
390	.name	= "gpio-keys",
391	.id	= -1,
392	.dev	= {
393		.platform_data	= &gpio_keys_pdata,
394	},
395};
396
397static void __init overo_init_keys(void)
398{
399	platform_device_register(&gpio_keys_device);
400}
401
402#else
403static inline void __init overo_init_keys(void) { return; }
404#endif
405
406static int overo_twl_gpio_setup(struct device *dev,
407		unsigned gpio, unsigned ngpio)
408{
409	omap2_hsmmc_init(mmc);
410
411#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
412	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
413	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
414#endif
415
416	return 0;
417}
418
419static struct twl4030_gpio_platform_data overo_gpio_data = {
420	.gpio_base	= OMAP_MAX_GPIO_LINES,
421	.irq_base	= TWL4030_GPIO_IRQ_BASE,
422	.irq_end	= TWL4030_GPIO_IRQ_END,
423	.use_leds	= true,
424	.setup		= overo_twl_gpio_setup,
425};
426
427static struct regulator_init_data overo_vmmc1 = {
428	.constraints = {
429		.min_uV			= 1850000,
430		.max_uV			= 3150000,
431		.valid_modes_mask	= REGULATOR_MODE_NORMAL
432					| REGULATOR_MODE_STANDBY,
433		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
434					| REGULATOR_CHANGE_MODE
435					| REGULATOR_CHANGE_STATUS,
436	},
437	.num_consumer_supplies	= ARRAY_SIZE(overo_vmmc1_supply),
438	.consumer_supplies	= overo_vmmc1_supply,
439};
440
441static struct twl4030_platform_data overo_twldata = {
442	.gpio		= &overo_gpio_data,
443	.vmmc1		= &overo_vmmc1,
444};
445
446static int __init overo_i2c_init(void)
447{
448	omap3_pmic_get_config(&overo_twldata,
449			TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
450			TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
451
452	overo_twldata.vpll2->constraints.name = "VDVI";
453
454	omap3_pmic_init("tps65950", &overo_twldata);
455	/* i2c2 pins are used for gpio */
456	omap_register_i2c_bus(3, 400, NULL, 0);
457	return 0;
458}
459
460static struct spi_board_info overo_spi_board_info[] __initdata = {
461#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
462	defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
463	{
464		.modalias		= "lgphilips_lb035q02_panel-spi",
465		.bus_num		= 1,
466		.chip_select		= 1,
467		.max_speed_hz		= 500000,
468		.mode			= SPI_MODE_3,
469	},
470#endif
471};
472
473static int __init overo_spi_init(void)
474{
475	overo_ads7846_init();
476	spi_register_board_info(overo_spi_board_info,
477			ARRAY_SIZE(overo_spi_board_info));
478	return 0;
479}
480
481static void __init overo_init_early(void)
482{
483	omap2_init_common_infrastructure();
484	omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
485				  mt46h32m32lf6_sdrc_params);
486}
487
488static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
489	.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
490	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
491	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
492	.phy_reset  = true,
493	.reset_gpio_port[0]  = -EINVAL,
494	.reset_gpio_port[1]  = OVERO_GPIO_USBH_NRESET,
495	.reset_gpio_port[2]  = -EINVAL
496};
497
498#ifdef CONFIG_OMAP_MUX
499static struct omap_board_mux board_mux[] __initdata = {
500	{ .reg_offset = OMAP_MUX_TERMINATOR },
501};
502#endif
503
504static struct gpio overo_bt_gpios[] __initdata = {
505	{ OVERO_GPIO_BT_XGATE,	GPIOF_OUT_INIT_LOW,	"lcd enable"    },
506	{ OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,	"lcd bl enable" },
507};
508
509static void __init overo_init(void)
510{
511	int ret;
512
513	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
514	overo_i2c_init();
515	omap_display_init(&overo_dss_data);
516	omap_serial_init();
517	omap_nand_flash_init(0, overo_nand_partitions,
518			     ARRAY_SIZE(overo_nand_partitions));
519	usb_musb_init(NULL);
520	usbhs_init(&usbhs_bdata);
521	overo_spi_init();
522	overo_init_smsc911x();
523	overo_display_init();
524	overo_init_led();
525	overo_init_keys();
526
527	/* Ensure SDRC pins are mux'd for self-refresh */
528	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
529	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
530
531	ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
532			       "OVERO_GPIO_W2W_NRESET");
533	if (ret == 0) {
534		gpio_export(OVERO_GPIO_W2W_NRESET, 0);
535		gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
536		udelay(10);
537		gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
538	} else {
539		printk(KERN_ERR "could not obtain gpio for "
540					"OVERO_GPIO_W2W_NRESET\n");
541	}
542
543	ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
544	if (ret) {
545		pr_err("%s: could not obtain BT gpios\n", __func__);
546	} else {
547		gpio_export(OVERO_GPIO_BT_XGATE, 0);
548		gpio_export(OVERO_GPIO_BT_NRESET, 0);
549		gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
550		mdelay(6);
551		gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
552	}
553
554	ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
555			       "OVERO_GPIO_USBH_CPEN");
556	if (ret == 0)
557		gpio_export(OVERO_GPIO_USBH_CPEN, 0);
558	else
559		printk(KERN_ERR "could not obtain gpio for "
560					"OVERO_GPIO_USBH_CPEN\n");
561}
562
563MACHINE_START(OVERO, "Gumstix Overo")
564	.boot_params	= 0x80000100,
565	.reserve	= omap_reserve,
566	.map_io		= omap3_map_io,
567	.init_early	= overo_init_early,
568	.init_irq	= omap3_init_irq,
569	.init_machine	= overo_init,
570	.timer		= &omap3_timer,
571MACHINE_END