aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/board-am3517evm.c
blob: 07399505312b19fac8331d1d0b5367e85418a422 (plain) (blame)
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
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
/*
 * linux/arch/arm/mach-omap2/board-am3517evm.c
 *
 * Copyright (C) 2009 Texas Instruments Incorporated
 * Author: Ranjith Lohithakshan <ranjithl@ti.com>
 *
 * Based on mach-omap2/board-omap3evm.c
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as  published by the
 * Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
 * whether express or implied; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/i2c/pca953x.h>
#include <linux/can/platform/ti_hecc.h>
#include <linux/davinci_emac.h>

#include <mach/hardware.h>
#include <mach/am35xx.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <plat/board.h>
#include <plat/common.h>
#include <plat/usb.h>
#include <plat/display.h>

#include "mux.h"
#include "control.h"

#define AM35XX_EVM_MDIO_FREQUENCY	(1000000)

static struct mdio_platform_data am3517_evm_mdio_pdata = {
	.bus_freq	= AM35XX_EVM_MDIO_FREQUENCY,
};

static struct resource am3517_mdio_resources[] = {
	{
		.start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
		.end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
			  SZ_4K - 1,
		.flags  = IORESOURCE_MEM,
	},
};

static struct platform_device am3517_mdio_device = {
	.name		= "davinci_mdio",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(am3517_mdio_resources),
	.resource	= am3517_mdio_resources,
	.dev.platform_data = &am3517_evm_mdio_pdata,
};

static struct emac_platform_data am3517_evm_emac_pdata = {
	.rmii_en	= 1,
};

static struct resource am3517_emac_resources[] = {
	{
		.start  = AM35XX_IPSS_EMAC_BASE,
		.end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
		.flags  = IORESOURCE_MEM,
	},
	{
		.start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
		.end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
		.flags  = IORESOURCE_IRQ,
	},
	{
		.start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
		.end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
		.flags  = IORESOURCE_IRQ,
	},
	{
		.start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
		.end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
		.flags  = IORESOURCE_IRQ,
	},
	{
		.start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
		.end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
		.flags  = IORESOURCE_IRQ,
	},
};

static struct platform_device am3517_emac_device = {
	.name		= "davinci_emac",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(am3517_emac_resources),
	.resource	= am3517_emac_resources,
};

static void am3517_enable_ethernet_int(void)
{
	u32 regval;

	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
		AM35XX_CPGMAC_C0_TX_PULSE_CLR |
		AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
		AM35XX_CPGMAC_C0_RX_THRESH_CLR);
	omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
}

static void am3517_disable_ethernet_int(void)
{
	u32 regval;

	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
		AM35XX_CPGMAC_C0_TX_PULSE_CLR);
	omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
	regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
}

static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
{
	unsigned int regval;

	pdata->ctrl_reg_offset		= AM35XX_EMAC_CNTRL_OFFSET;
	pdata->ctrl_mod_reg_offset	= AM35XX_EMAC_CNTRL_MOD_OFFSET;
	pdata->ctrl_ram_offset		= AM35XX_EMAC_CNTRL_RAM_OFFSET;
	pdata->ctrl_ram_size		= AM35XX_EMAC_CNTRL_RAM_SIZE;
	pdata->version			= EMAC_VERSION_2;
	pdata->hw_ram_addr		= AM35XX_EMAC_HW_RAM_ADDR;
	pdata->interrupt_enable		= am3517_enable_ethernet_int;
	pdata->interrupt_disable	= am3517_disable_ethernet_int;
	am3517_emac_device.dev.platform_data	= pdata;
	platform_device_register(&am3517_emac_device);
	platform_device_register(&am3517_mdio_device);
	clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
		      NULL, &am3517_emac_device.dev);

	regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
	regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
	omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
	regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);

	return ;
}



#define LCD_PANEL_PWR		176
#define LCD_PANEL_BKLIGHT_PWR	182
#define LCD_PANEL_PWM		181

static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
	{
		I2C_BOARD_INFO("s35390a", 0x30),
	},
};

/*
 * RTC - S35390A
 */
#define GPIO_RTCS35390A_IRQ	55

static void __init am3517_evm_rtc_init(void)
{
	int r;

	omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
	r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
	if (r < 0) {
		printk(KERN_WARNING "failed to request GPIO#%d\n",
				GPIO_RTCS35390A_IRQ);
		return;
	}
	r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
	if (r < 0) {
		printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
				GPIO_RTCS35390A_IRQ);
		gpio_free(GPIO_RTCS35390A_IRQ);
		return;
	}
	am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
}

/*
 * I2C GPIO Expander - TCA6416
 */

/* Mounted on Base-Board */
static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
	.gpio_base	= OMAP_MAX_GPIO_LINES,
};
static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
	{
		I2C_BOARD_INFO("tca6416", 0x21),
		.platform_data = &am3517evm_gpio_expander_info_0,
	},
};

/* Mounted on UI Card */
static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
	.gpio_base	= OMAP_MAX_GPIO_LINES + 16,
};
static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
	.gpio_base	= OMAP_MAX_GPIO_LINES + 32,
};
static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
	{
		I2C_BOARD_INFO("tca6416", 0x20),
		.platform_data = &am3517evm_ui_gpio_expander_info_1,
	},
	{
		I2C_BOARD_INFO("tca6416", 0x21),
		.platform_data = &am3517evm_ui_gpio_expander_info_2,
	},
};

static int __init am3517_evm_i2c_init(void)
{
	omap_register_i2c_bus(1, 400, NULL, 0);
	omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
			ARRAY_SIZE(am3517evm_i2c2_boardinfo));
	omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
			ARRAY_SIZE(am3517evm_i2c3_boardinfo));

	return 0;
}

static int lcd_enabled;
static int dvi_enabled;

#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
		defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
static void __init am3517_evm_display_init(void)
{
	int r;

	omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
	omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
	omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
	/*
	 * Enable GPIO 182 = LCD Backlight Power
	 */
	r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
	if (r) {
		printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
		return;
	}
	gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
	/*
	 * Enable GPIO 181 = LCD Panel PWM
	 */
	r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
	if (r) {
		printk(KERN_ERR "failed to get lcd_pwm\n");
		goto err_1;
	}
	gpio_direction_output(LCD_PANEL_PWM, 1);
	/*
	 * Enable GPIO 176 = LCD Panel Power enable pin
	 */
	r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
	if (r) {
		printk(KERN_ERR "failed to get lcd_panel_pwr\n");
		goto err_2;
	}
	gpio_direction_output(LCD_PANEL_PWR, 1);

	printk(KERN_INFO "Display initialized successfully\n");
	return;

err_2:
	gpio_free(LCD_PANEL_PWM);
err_1:
	gpio_free(LCD_PANEL_BKLIGHT_PWR);
}
#else
static void __init am3517_evm_display_init(void) {}
#endif

static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
{
	if (dvi_enabled) {
		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
		return -EINVAL;
	}
	gpio_set_value(LCD_PANEL_PWR, 1);
	lcd_enabled = 1;

	return 0;
}

static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
{
	gpio_set_value(LCD_PANEL_PWR, 0);
	lcd_enabled = 0;
}

static struct omap_dss_device am3517_evm_lcd_device = {
	.type			= OMAP_DISPLAY_TYPE_DPI,
	.name			= "lcd",
	.driver_name		= "sharp_lq_panel",
	.phy.dpi.data_lines 	= 16,
	.platform_enable	= am3517_evm_panel_enable_lcd,
	.platform_disable	= am3517_evm_panel_disable_lcd,
};

static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
{
	return 0;
}

static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
{
}

static struct omap_dss_device am3517_evm_tv_device = {
	.type 			= OMAP_DISPLAY_TYPE_VENC,
	.name 			= "tv",
	.driver_name		= "venc",
	.phy.venc.type		= OMAP_DSS_VENC_TYPE_SVIDEO,
	.platform_enable	= am3517_evm_panel_enable_tv,
	.platform_disable	= am3517_evm_panel_disable_tv,
};

static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
{
	if (lcd_enabled) {
		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
		return -EINVAL;
	}
	dvi_enabled = 1;

	return 0;
}

static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
{
	dvi_enabled = 0;
}

static struct omap_dss_device am3517_evm_dvi_device = {
	.type			= OMAP_DISPLAY_TYPE_DPI,
	.name			= "dvi",
	.driver_name		= "generic_panel",
	.phy.dpi.data_lines	= 24,
	.platform_enable	= am3517_evm_panel_enable_dvi,
	.platform_disable	= am3517_evm_panel_disable_dvi,
};

static struct omap_dss_device *am3517_evm_dss_devices[] = {
	&am3517_evm_lcd_device,
	&am3517_evm_tv_device,
	&am3517_evm_dvi_device,
};

static struct omap_dss_board_info am3517_evm_dss_data = {
	.num_devices	= ARRAY_SIZE(am3517_evm_dss_devices),
	.devices	= am3517_evm_dss_devices,
	.default_device	= &am3517_evm_lcd_device,
};

static struct platform_device am3517_evm_dss_device = {
	.name		= "omapdss",
	.id		= -1,
	.dev		= {
		.platform_data	= &am3517_evm_dss_data,
	},
};

/*
 * Board initialization
 */
static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
};

static struct platform_device *am3517_evm_devices[] __initdata = {
	&am3517_evm_dss_device,
};

static void __init am3517_evm_init_irq(void)
{
	omap_board_config = am3517_evm_config;
	omap_board_config_size = ARRAY_SIZE(am3517_evm_config);

	omap2_init_common_hw(NULL, NULL);
	omap_init_irq();
	omap_gpio_init();
}

static struct omap_musb_board_data musb_board_data = {
	.interface_type         = MUSB_INTERFACE_ULPI,
	.mode                   = MUSB_OTG,
	.power                  = 500,
};

static __init void am3517_evm_musb_init(void)
{
	u32 devconf2;

	/*
	 * Set up USB clock/mode in the DEVCONF2 register.
	 */
	devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);

	/* USB2.0 PHY reference clock is 13 MHz */
	devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
	devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
			| CONF2_DATPOL;

	omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);

	usb_musb_init(&musb_board_data);
}

static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
	.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
		defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
	.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
#else
	.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
#endif
	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,

	.phy_reset  = true,
	.reset_gpio_port[0]  = 57,
	.reset_gpio_port[1]  = -EINVAL,
	.reset_gpio_port[2]  = -EINVAL
};

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
	/* USB OTG DRVVBUS offset = 0x212 */
	OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
	{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#else
#define board_mux	NULL
#endif


static struct resource am3517_hecc_resources[] = {
	{
		.start	= AM35XX_IPSS_HECC_BASE,
		.end	= AM35XX_IPSS_HECC_BASE + 0x3FFF,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_35XX_HECC0_IRQ,
		.end	= INT_35XX_HECC0_IRQ,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device am3517_hecc_device = {
	.name		= "ti_hecc",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(am3517_hecc_resources),
	.resource	= am3517_hecc_resources,
};

static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
	.scc_hecc_offset	= AM35XX_HECC_SCC_HECC_OFFSET,
	.scc_ram_offset		= AM35XX_HECC_SCC_RAM_OFFSET,
	.hecc_ram_offset	= AM35XX_HECC_RAM_OFFSET,
	.mbx_offset		= AM35XX_HECC_MBOX_OFFSET,
	.int_line		= AM35XX_HECC_INT_LINE,
	.version		= AM35XX_HECC_VERSION,
};

static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
{
	am3517_hecc_device.dev.platform_data = pdata;
	platform_device_register(&am3517_hecc_device);
}

static void __init am3517_evm_init(void)
{
	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);

	am3517_evm_i2c_init();
	platform_add_devices(am3517_evm_devices,
				ARRAY_SIZE(am3517_evm_devices));

	omap_serial_init();

	/* Configure GPIO for EHCI port */
	omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
	usb_ehci_init(&ehci_pdata);
	am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
	/* DSS */
	am3517_evm_display_init();

	/* RTC - S35390A */
	am3517_evm_rtc_init();

	i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
				ARRAY_SIZE(am3517evm_i2c1_boardinfo));
	/*Ethernet*/
	am3517_evm_ethernet_init(&am3517_evm_emac_pdata);

	/* MUSB */
	am3517_evm_musb_init();
}

MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
	.boot_params	= 0x80000100,
	.map_io		= omap3_map_io,
	.reserve	= omap_reserve,
	.init_irq	= am3517_evm_init_irq,
	.init_machine	= am3517_evm_init,
	.timer		= &omap_timer,
MACHINE_END