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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 #include <linux/gpio.h>
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/regulator/fixed.h>
26 #include <linux/regulator/machine.h>
27 #include <linux/i2c/twl.h>
28 #include <linux/io.h>
29 #include <linux/smsc911x.h>
30 #include <linux/mmc/host.h>
31 
32 #include <mach/hardware.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 
37 #include <plat/mcspi.h>
38 #include <plat/board.h>
39 #include "common.h"
40 #include <plat/gpmc.h>
41 #include <mach/board-zoom.h>
42 
43 #include <asm/delay.h>
44 #include <plat/usb.h>
45 #include <plat/gpmc-smsc911x.h>
46 
47 #include <video/omapdss.h>
48 #include <video/omap-panel-generic-dpi.h>
49 
50 #include "board-flash.h"
51 #include "mux.h"
52 #include "hsmmc.h"
53 #include "control.h"
54 #include "common-board-devices.h"
55 
56 #define LDP_SMSC911X_CS		1
57 #define LDP_SMSC911X_GPIO	152
58 #define DEBUG_BASE		0x08000000
59 #define LDP_ETHR_START		DEBUG_BASE
60 
61 static uint32_t board_keymap[] = {
62 	KEY(0, 0, KEY_1),
63 	KEY(1, 0, KEY_2),
64 	KEY(2, 0, KEY_3),
65 	KEY(0, 1, KEY_4),
66 	KEY(1, 1, KEY_5),
67 	KEY(2, 1, KEY_6),
68 	KEY(3, 1, KEY_F5),
69 	KEY(0, 2, KEY_7),
70 	KEY(1, 2, KEY_8),
71 	KEY(2, 2, KEY_9),
72 	KEY(3, 2, KEY_F6),
73 	KEY(0, 3, KEY_F7),
74 	KEY(1, 3, KEY_0),
75 	KEY(2, 3, KEY_F8),
76 	PERSISTENT_KEY(4, 5),
77 	KEY(4, 4, KEY_VOLUMEUP),
78 	KEY(5, 5, KEY_VOLUMEDOWN),
79 	0
80 };
81 
82 static struct matrix_keymap_data board_map_data = {
83 	.keymap			= board_keymap,
84 	.keymap_size		= ARRAY_SIZE(board_keymap),
85 };
86 
87 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
88 	.keymap_data	= &board_map_data,
89 	.rows		= 6,
90 	.cols		= 6,
91 	.rep		= 1,
92 };
93 
94 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
95 	[0] = {
96 		.code			= KEY_ENTER,
97 		.gpio			= 101,
98 		.desc			= "enter sw",
99 		.active_low		= 1,
100 		.debounce_interval	= 30,
101 	},
102 	[1] = {
103 		.code			= KEY_F1,
104 		.gpio			= 102,
105 		.desc			= "func 1",
106 		.active_low		= 1,
107 		.debounce_interval	= 30,
108 	},
109 	[2] = {
110 		.code			= KEY_F2,
111 		.gpio			= 103,
112 		.desc			= "func 2",
113 		.active_low		= 1,
114 		.debounce_interval	= 30,
115 	},
116 	[3] = {
117 		.code			= KEY_F3,
118 		.gpio			= 104,
119 		.desc			= "func 3",
120 		.active_low		= 1,
121 		.debounce_interval 	= 30,
122 	},
123 	[4] = {
124 		.code			= KEY_F4,
125 		.gpio			= 105,
126 		.desc			= "func 4",
127 		.active_low		= 1,
128 		.debounce_interval	= 30,
129 	},
130 	[5] = {
131 		.code			= KEY_LEFT,
132 		.gpio			= 106,
133 		.desc			= "left sw",
134 		.active_low		= 1,
135 		.debounce_interval	= 30,
136 	},
137 	[6] = {
138 		.code			= KEY_RIGHT,
139 		.gpio			= 107,
140 		.desc			= "right sw",
141 		.active_low		= 1,
142 		.debounce_interval	= 30,
143 	},
144 	[7] = {
145 		.code			= KEY_UP,
146 		.gpio			= 108,
147 		.desc			= "up sw",
148 		.active_low		= 1,
149 		.debounce_interval	= 30,
150 	},
151 	[8] = {
152 		.code			= KEY_DOWN,
153 		.gpio			= 109,
154 		.desc			= "down sw",
155 		.active_low		= 1,
156 		.debounce_interval	= 30,
157 	},
158 };
159 
160 static struct gpio_keys_platform_data ldp_gpio_keys = {
161 	.buttons		= ldp_gpio_keys_buttons,
162 	.nbuttons		= ARRAY_SIZE(ldp_gpio_keys_buttons),
163 	.rep			= 1,
164 };
165 
166 static struct platform_device ldp_gpio_keys_device = {
167 	.name		= "gpio-keys",
168 	.id		= -1,
169 	.dev		= {
170 		.platform_data	= &ldp_gpio_keys,
171 	},
172 };
173 
174 static struct omap_smsc911x_platform_data smsc911x_cfg = {
175 	.cs             = LDP_SMSC911X_CS,
176 	.gpio_irq       = LDP_SMSC911X_GPIO,
177 	.gpio_reset     = -EINVAL,
178 	.flags		= SMSC911X_USE_32BIT,
179 };
180 
ldp_init_smsc911x(void)181 static inline void __init ldp_init_smsc911x(void)
182 {
183 	gpmc_smsc911x_init(&smsc911x_cfg);
184 }
185 
186 /* LCD */
187 
188 static int ldp_backlight_gpio;
189 static int ldp_lcd_enable_gpio;
190 
191 #define LCD_PANEL_RESET_GPIO		55
192 #define LCD_PANEL_QVGA_GPIO		56
193 
ldp_panel_enable_lcd(struct omap_dss_device * dssdev)194 static int ldp_panel_enable_lcd(struct omap_dss_device *dssdev)
195 {
196 	if (gpio_is_valid(ldp_lcd_enable_gpio))
197 		gpio_direction_output(ldp_lcd_enable_gpio, 1);
198 	if (gpio_is_valid(ldp_backlight_gpio))
199 		gpio_direction_output(ldp_backlight_gpio, 1);
200 
201 	return 0;
202 }
203 
ldp_panel_disable_lcd(struct omap_dss_device * dssdev)204 static void ldp_panel_disable_lcd(struct omap_dss_device *dssdev)
205 {
206 	if (gpio_is_valid(ldp_lcd_enable_gpio))
207 		gpio_direction_output(ldp_lcd_enable_gpio, 0);
208 	if (gpio_is_valid(ldp_backlight_gpio))
209 		gpio_direction_output(ldp_backlight_gpio, 0);
210 }
211 
212 static struct panel_generic_dpi_data ldp_panel_data = {
213 	.name			= "nec_nl2432dr22-11b",
214 	.platform_enable	= ldp_panel_enable_lcd,
215 	.platform_disable	= ldp_panel_disable_lcd,
216 };
217 
218 static struct omap_dss_device ldp_lcd_device = {
219 	.name			= "lcd",
220 	.driver_name		= "generic_dpi_panel",
221 	.type			= OMAP_DISPLAY_TYPE_DPI,
222 	.phy.dpi.data_lines	= 18,
223 	.data			= &ldp_panel_data,
224 };
225 
226 static struct omap_dss_device *ldp_dss_devices[] = {
227 	&ldp_lcd_device,
228 };
229 
230 static struct omap_dss_board_info ldp_dss_data = {
231 	.num_devices	= ARRAY_SIZE(ldp_dss_devices),
232 	.devices	= ldp_dss_devices,
233 	.default_device	= &ldp_lcd_device,
234 };
235 
ldp_display_init(void)236 static void __init ldp_display_init(void)
237 {
238 	int r;
239 
240 	static struct gpio gpios[] __initdata = {
241 		{LCD_PANEL_RESET_GPIO, GPIOF_OUT_INIT_HIGH, "LCD RESET"},
242 		{LCD_PANEL_QVGA_GPIO, GPIOF_OUT_INIT_HIGH, "LCD QVGA"},
243 	};
244 
245 	r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
246 	if (r) {
247 		pr_err("Cannot request LCD GPIOs, error %d\n", r);
248 		return;
249 	}
250 
251 	omap_display_init(&ldp_dss_data);
252 }
253 
ldp_twl_gpio_setup(struct device * dev,unsigned gpio,unsigned ngpio)254 static int ldp_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio)
255 {
256 	int r;
257 
258 	struct gpio gpios[] = {
259 		{gpio + 7 , GPIOF_OUT_INIT_LOW, "LCD ENABLE"},
260 		{gpio + 15, GPIOF_OUT_INIT_LOW, "LCD BACKLIGHT"},
261 	};
262 
263 	r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
264 	if (r) {
265 		pr_err("Cannot request LCD GPIOs, error %d\n", r);
266 		ldp_backlight_gpio = -EINVAL;
267 		ldp_lcd_enable_gpio = -EINVAL;
268 		return r;
269 	}
270 
271 	ldp_backlight_gpio = gpio + 15;
272 	ldp_lcd_enable_gpio = gpio + 7;
273 
274 	return 0;
275 }
276 
277 static struct twl4030_gpio_platform_data ldp_gpio_data = {
278 	.gpio_base	= OMAP_MAX_GPIO_LINES,
279 	.irq_base	= TWL4030_GPIO_IRQ_BASE,
280 	.irq_end	= TWL4030_GPIO_IRQ_END,
281 	.setup		= ldp_twl_gpio_setup,
282 };
283 
284 static struct regulator_consumer_supply ldp_vmmc1_supply[] = {
285 	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
286 };
287 
288 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
289 static struct regulator_init_data ldp_vmmc1 = {
290 	.constraints = {
291 		.min_uV			= 1850000,
292 		.max_uV			= 3150000,
293 		.valid_modes_mask	= REGULATOR_MODE_NORMAL
294 					| REGULATOR_MODE_STANDBY,
295 		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
296 					| REGULATOR_CHANGE_MODE
297 					| REGULATOR_CHANGE_STATUS,
298 	},
299 	.num_consumer_supplies	= ARRAY_SIZE(ldp_vmmc1_supply),
300 	.consumer_supplies	= ldp_vmmc1_supply,
301 };
302 
303 /* ads7846 on SPI */
304 static struct regulator_consumer_supply ldp_vaux1_supplies[] = {
305 	REGULATOR_SUPPLY("vcc", "spi1.0"),
306 };
307 
308 /* VAUX1 */
309 static struct regulator_init_data ldp_vaux1 = {
310 	.constraints = {
311 		.min_uV			= 3000000,
312 		.max_uV			= 3000000,
313 		.apply_uV		= true,
314 		.valid_modes_mask	= REGULATOR_MODE_NORMAL
315 					| REGULATOR_MODE_STANDBY,
316 		.valid_ops_mask		= REGULATOR_CHANGE_MODE
317 					| REGULATOR_CHANGE_STATUS,
318 	},
319 	.num_consumer_supplies		= ARRAY_SIZE(ldp_vaux1_supplies),
320 	.consumer_supplies		= ldp_vaux1_supplies,
321 };
322 
323 static struct regulator_consumer_supply ldp_vpll2_supplies[] = {
324 	REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
325 	REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
326 };
327 
328 static struct regulator_init_data ldp_vpll2 = {
329 	.constraints = {
330 		.name			= "VDVI",
331 		.min_uV			= 1800000,
332 		.max_uV			= 1800000,
333 		.apply_uV		= true,
334 		.valid_modes_mask	= REGULATOR_MODE_NORMAL
335 					| REGULATOR_MODE_STANDBY,
336 		.valid_ops_mask		= REGULATOR_CHANGE_MODE
337 					| REGULATOR_CHANGE_STATUS,
338 	},
339 	.num_consumer_supplies	= ARRAY_SIZE(ldp_vpll2_supplies),
340 	.consumer_supplies	= ldp_vpll2_supplies,
341 };
342 
343 static struct twl4030_platform_data ldp_twldata = {
344 	/* platform_data for children goes here */
345 	.vmmc1		= &ldp_vmmc1,
346 	.vaux1		= &ldp_vaux1,
347 	.vpll2		= &ldp_vpll2,
348 	.gpio		= &ldp_gpio_data,
349 	.keypad		= &ldp_kp_twl4030_data,
350 };
351 
omap_i2c_init(void)352 static int __init omap_i2c_init(void)
353 {
354 	omap3_pmic_get_config(&ldp_twldata,
355 			  TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC, 0);
356 	omap3_pmic_init("twl4030", &ldp_twldata);
357 	omap_register_i2c_bus(2, 400, NULL, 0);
358 	omap_register_i2c_bus(3, 400, NULL, 0);
359 	return 0;
360 }
361 
362 static struct omap2_hsmmc_info mmc[] __initdata = {
363 	{
364 		.mmc		= 1,
365 		.caps		= MMC_CAP_4_BIT_DATA,
366 		.gpio_cd	= -EINVAL,
367 		.gpio_wp	= -EINVAL,
368 	},
369 	{}	/* Terminator */
370 };
371 
372 static struct platform_device *ldp_devices[] __initdata = {
373 	&ldp_gpio_keys_device,
374 };
375 
376 #ifdef CONFIG_OMAP_MUX
377 static struct omap_board_mux board_mux[] __initdata = {
378 	{ .reg_offset = OMAP_MUX_TERMINATOR },
379 };
380 #endif
381 
382 static struct mtd_partition ldp_nand_partitions[] = {
383 	/* All the partition sizes are listed in terms of NAND block size */
384 	{
385 		.name		= "X-Loader-NAND",
386 		.offset		= 0,
387 		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
388 		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
389 	},
390 	{
391 		.name		= "U-Boot-NAND",
392 		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
393 		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
394 		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
395 	},
396 	{
397 		.name		= "Boot Env-NAND",
398 		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
399 		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
400 	},
401 	{
402 		.name		= "Kernel-NAND",
403 		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
404 		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
405 	},
406 	{
407 		.name		= "File System - NAND",
408 		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
409 		.size		= MTDPART_SIZ_FULL,	/* 96MB, 0x6000000 */
410 	},
411 
412 };
413 
414 static struct regulator_consumer_supply dummy_supplies[] = {
415 	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
416 	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
417 };
418 
omap_ldp_init(void)419 static void __init omap_ldp_init(void)
420 {
421 	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
422 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
423 	ldp_init_smsc911x();
424 	omap_i2c_init();
425 	platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
426 	omap_ads7846_init(1, 54, 310, NULL);
427 	omap_serial_init();
428 	omap_sdrc_init(NULL, NULL);
429 	usb_musb_init(NULL);
430 	board_nand_init(ldp_nand_partitions,
431 		ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS, 0);
432 
433 	omap_hsmmc_init(mmc);
434 	ldp_display_init();
435 }
436 
437 MACHINE_START(OMAP_LDP, "OMAP LDP board")
438 	.atag_offset	= 0x100,
439 	.reserve	= omap_reserve,
440 	.map_io		= omap3_map_io,
441 	.init_early	= omap3430_init_early,
442 	.init_irq	= omap3_init_irq,
443 	.handle_irq	= omap3_intc_handle_irq,
444 	.init_machine	= omap_ldp_init,
445 	.timer		= &omap3_timer,
446 	.restart	= omap_prcm_restart,
447 MACHINE_END
448