aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/board-omap3beagle.c
blob: 991ac9c38032832dbed51e533f10b2ef7099ce81 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
/*
 * linux/arch/arm/mach-omap2/board-omap3beagle.c
 *
 * Copyright (C) 2008 Texas Instruments
 *
 * Modified from mach-omap2/board-3430sdp.c
 *
 * Initial code: Syed Mohammed Khasim
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand.h>

#include <linux/regulator/machine.h>
#include <linux/i2c/twl4030.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>

#include <mach/board.h>
#include <mach/common.h>
#include <mach/gpmc.h>
#include <mach/nand.h>
#include <mach/mux.h>
#include <mach/usb.h>
#include <mach/timer-gp.h>

#include "mmc-twl4030.h"

#define GPMC_CS0_BASE  0x60
#define GPMC_CS_SIZE   0x30

#define NAND_BLOCK_SIZE		SZ_128K

static struct mtd_partition omap3beagle_nand_partitions[] = {
	/* All the partition sizes are listed in terms of NAND block size */
	{
		.name		= "X-Loader",
		.offset		= 0,
		.size		= 4 * NAND_BLOCK_SIZE,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	{
		.name		= "U-Boot",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
		.size		= 15 * NAND_BLOCK_SIZE,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	{
		.name		= "U-Boot Env",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x260000 */
		.size		= 1 * NAND_BLOCK_SIZE,
	},
	{
		.name		= "Kernel",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
		.size		= 32 * NAND_BLOCK_SIZE,
	},
	{
		.name		= "File System",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
		.size		= MTDPART_SIZ_FULL,
	},
};

static struct omap_nand_platform_data omap3beagle_nand_data = {
	.options	= NAND_BUSWIDTH_16,
	.parts		= omap3beagle_nand_partitions,
	.nr_parts	= ARRAY_SIZE(omap3beagle_nand_partitions),
	.dma_channel	= -1,		/* disable DMA in OMAP NAND driver */
	.nand_setup	= NULL,
	.dev_ready	= NULL,
};

static struct resource omap3beagle_nand_resource = {
	.flags		= IORESOURCE_MEM,
};

static struct platform_device omap3beagle_nand_device = {
	.name		= "omap2-nand",
	.id		= -1,
	.dev		= {
		.platform_data	= &omap3beagle_nand_data,
	},
	.num_resources	= 1,
	.resource	= &omap3beagle_nand_resource,
};

#include "sdram-micron-mt46h32m32lf-6.h"

static struct omap_uart_config omap3_beagle_uart_config __initdata = {
	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct twl4030_hsmmc_info mmc[] = {
	{
		.mmc		= 1,
		.wires		= 8,
		.gpio_wp	= 29,
	},
	{}	/* Terminator */
};

static struct platform_device omap3_beagle_lcd_device = {
	.name		= "omap3beagle_lcd",
	.id		= -1,
};

static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
	.ctrl_name	= "internal",
};

static struct regulator_consumer_supply beagle_vmmc1_supply = {
	.supply			= "vmmc",
};

static struct regulator_consumer_supply beagle_vsim_supply = {
	.supply			= "vmmc_aux",
};

static struct gpio_led gpio_leds[];

static int beagle_twl_gpio_setup(struct device *dev,
		unsigned gpio, unsigned ngpio)
{
	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
	omap_cfg_reg(AH8_34XX_GPIO29);
	mmc[0].gpio_cd = gpio + 0;
	twl4030_mmc_init(mmc);

	/* link regulators to MMC adapters */
	beagle_vmmc1_supply.dev = mmc[0].dev;
	beagle_vsim_supply.dev = mmc[0].dev;

	/* REVISIT: need ehci-omap hooks for external VBUS
	 * power switch and overcurrent detect
	 */

	gpio_request(gpio + 1, "EHCI_nOC");
	gpio_direction_input(gpio + 1);

	/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
	gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);

	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;

	return 0;
}

static struct twl4030_gpio_platform_data beagle_gpio_data = {
	.gpio_base	= OMAP_MAX_GPIO_LINES,
	.irq_base	= TWL4030_GPIO_IRQ_BASE,
	.irq_end	= TWL4030_GPIO_IRQ_END,
	.use_leds	= true,
	.pullups	= BIT(1),
	.pulldowns	= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
				| BIT(15) | BIT(16) | BIT(17),
	.setup		= beagle_twl_gpio_setup,
};

static struct regulator_consumer_supply beagle_vdac_supply = {
	.supply		= "vdac",
	.dev		= &omap3_beagle_lcd_device.dev,
};

static struct regulator_consumer_supply beagle_vdvi_supply = {
	.supply		= "vdvi",
	.dev		= &omap3_beagle_lcd_device.dev,
};

/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data beagle_vmmc1 = {
	.constraints = {
		.min_uV			= 1850000,
		.max_uV			= 3150000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
					| REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &beagle_vmmc1_supply,
};

/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
static struct regulator_init_data beagle_vsim = {
	.constraints = {
		.min_uV			= 1800000,
		.max_uV			= 3000000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
					| REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &beagle_vsim_supply,
};

/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
static struct regulator_init_data beagle_vdac = {
	.constraints = {
		.min_uV			= 1800000,
		.max_uV			= 1800000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &beagle_vdac_supply,
};

/* VPLL2 for digital video outputs */
static struct regulator_init_data beagle_vpll2 = {
	.constraints = {
		.name			= "VDVI",
		.min_uV			= 1800000,
		.max_uV			= 1800000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &beagle_vdvi_supply,
};

static struct twl4030_platform_data beagle_twldata = {
	.irq_base	= TWL4030_IRQ_BASE,
	.irq_end	= TWL4030_IRQ_END,

	/* platform_data for children goes here */
	.gpio		= &beagle_gpio_data,
	.vmmc1		= &beagle_vmmc1,
	.vsim		= &beagle_vsim,
	.vdac		= &beagle_vdac,
	.vpll2		= &beagle_vpll2,
};

static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
	{
		I2C_BOARD_INFO("twl4030", 0x48),
		.flags = I2C_CLIENT_WAKE,
		.irq = INT_34XX_SYS_NIRQ,
		.platform_data = &beagle_twldata,
	},
};

static int __init omap3_beagle_i2c_init(void)
{
	omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
			ARRAY_SIZE(beagle_i2c_boardinfo));
	/* Bus 3 is attached to the DVI port where devices like the pico DLP
	 * projector don't work reliably with 400kHz */
	omap_register_i2c_bus(3, 100, NULL, 0);
	return 0;
}

static void __init omap3_beagle_init_irq(void)
{
	omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
	omap_init_irq();
#ifdef CONFIG_OMAP_32K_TIMER
	omap2_gp_clockevent_set_gptimer(12);
#endif
	omap_gpio_init();
}

static struct gpio_led gpio_leds[] = {
	{
		.name			= "beagleboard::usr0",
		.default_trigger	= "heartbeat",
		.gpio			= 150,
	},
	{
		.name			= "beagleboard::usr1",
		.default_trigger	= "mmc0",
		.gpio			= 149,
	},
	{
		.name			= "beagleboard::pmu_stat",
		.gpio			= -EINVAL,	/* gets replaced */
		.active_low		= true,
	},
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds		= gpio_leds,
	.num_leds	= ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds_gpio = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
		.platform_data	= &gpio_led_info,
	},
};

static struct gpio_keys_button gpio_buttons[] = {
	{
		.code			= BTN_EXTRA,
		.gpio			= 7,
		.desc			= "user",
		.wakeup			= 1,
	},
};

static struct gpio_keys_platform_data gpio_key_info = {
	.buttons	= gpio_buttons,
	.nbuttons	= ARRAY_SIZE(gpio_buttons),
};

static struct platform_device keys_gpio = {
	.name	= "gpio-keys",
	.id	= -1,
	.dev	= {
		.platform_data	= &gpio_key_info,
	},
};

static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
	{ OMAP_TAG_UART,	&omap3_beagle_uart_config },
	{ OMAP_TAG_LCD,		&omap3_beagle_lcd_config },
};

static struct platform_device *omap3_beagle_devices[] __initdata = {
	&omap3_beagle_lcd_device,
	&leds_gpio,
	&keys_gpio,
};

static void __init omap3beagle_flash_init(void)
{
	u8 cs = 0;
	u8 nandcs = GPMC_CS_NUM + 1;

	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;

	/* find out the chip-select on which NAND exists */
	while (cs < GPMC_CS_NUM) {
		u32 ret = 0;
		ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);

		if ((ret & 0xC00) == 0x800) {
			printk(KERN_INFO "Found NAND on CS%d\n", cs);
			if (nandcs > GPMC_CS_NUM)
				nandcs = cs;
		}
		cs++;
	}

	if (nandcs > GPMC_CS_NUM) {
		printk(KERN_INFO "NAND: Unable to find configuration "
				 "in GPMC\n ");
		return;
	}

	if (nandcs < GPMC_CS_NUM) {
		omap3beagle_nand_data.cs = nandcs;
		omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
			(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
		omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);

		printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
		if (platform_device_register(&omap3beagle_nand_device) < 0)
			printk(KERN_ERR "Unable to register NAND device\n");
	}
}

static void __init omap3_beagle_init(void)
{
	omap3_beagle_i2c_init();
	platform_add_devices(omap3_beagle_devices,
			ARRAY_SIZE(omap3_beagle_devices));
	omap_board_config = omap3_beagle_config;
	omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
	omap_serial_init();

	omap_cfg_reg(J25_34XX_GPIO170);
	gpio_request(170, "DVI_nPD");
	/* REVISIT leave DVI powered down until it's needed ... */
	gpio_direction_output(170, true);

	usb_musb_init();
	omap3beagle_flash_init();
}

static void __init omap3_beagle_map_io(void)
{
	omap2_set_globals_343x();
	omap2_map_common_io();
}

MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
	/* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= omap3_beagle_map_io,
	.init_irq	= omap3_beagle_init_irq,
	.init_machine	= omap3_beagle_init,
	.timer		= &omap_timer,
MACHINE_END