summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/board-h4.c
blob: 3b1ad1d981a359288dc67c84c6f5416e5b1042c7 (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
/*
 * linux/arch/arm/mach-omap2/board-h4.c
 *
 * Copyright (C) 2005 Nokia Corporation
 * Author: Paul Mundt <paul.mundt@nokia.com>
 *
 * Modified from mach-omap/omap1/board-generic.c
 *
 * 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/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/input.h>

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

#include <asm/arch/gpio.h>
#include <asm/arch/gpioexpander.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
#include <asm/arch/irda.h>
#include <asm/arch/board.h>
#include <asm/arch/common.h>
#include <asm/arch/keypad.h>
#include <asm/arch/menelaus.h>
#include <asm/arch/dma.h>
#include "prcm-regs.h"

#include <asm/io.h>
#include <asm/delay.h>

static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };

static int h4_keymap[] = {
	KEY(0, 0, KEY_LEFT),
	KEY(0, 1, KEY_RIGHT),
	KEY(0, 2, KEY_A),
	KEY(0, 3, KEY_B),
	KEY(0, 4, KEY_C),
	KEY(1, 0, KEY_DOWN),
	KEY(1, 1, KEY_UP),
	KEY(1, 2, KEY_E),
	KEY(1, 3, KEY_F),
	KEY(1, 4, KEY_G),
	KEY(2, 0, KEY_ENTER),
	KEY(2, 1, KEY_I),
	KEY(2, 2, KEY_J),
	KEY(2, 3, KEY_K),
	KEY(2, 4, KEY_3),
	KEY(3, 0, KEY_M),
	KEY(3, 1, KEY_N),
	KEY(3, 2, KEY_O),
	KEY(3, 3, KEY_P),
	KEY(3, 4, KEY_Q),
	KEY(4, 0, KEY_R),
	KEY(4, 1, KEY_4),
	KEY(4, 2, KEY_T),
	KEY(4, 3, KEY_U),
	KEY(4, 4, KEY_ENTER),
	KEY(5, 0, KEY_V),
	KEY(5, 1, KEY_W),
	KEY(5, 2, KEY_L),
	KEY(5, 3, KEY_S),
	KEY(5, 4, KEY_ENTER),
	0
};

static struct mtd_partition h4_partitions[] = {
	/* bootloader (U-Boot, etc) in first sector */
	{
	      .name		= "bootloader",
	      .offset		= 0,
	      .size		= SZ_128K,
	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
	},
	/* bootloader params in the next sector */
	{
	      .name		= "params",
	      .offset		= MTDPART_OFS_APPEND,
	      .size		= SZ_128K,
	      .mask_flags	= 0,
	},
	/* kernel */
	{
	      .name		= "kernel",
	      .offset		= MTDPART_OFS_APPEND,
	      .size		= SZ_2M,
	      .mask_flags	= 0
	},
	/* file system */
	{
	      .name		= "filesystem",
	      .offset		= MTDPART_OFS_APPEND,
	      .size		= MTDPART_SIZ_FULL,
	      .mask_flags	= 0
	}
};

static struct flash_platform_data h4_flash_data = {
	.map_name	= "cfi_probe",
	.width		= 2,
	.parts		= h4_partitions,
	.nr_parts	= ARRAY_SIZE(h4_partitions),
};

static struct resource h4_flash_resource = {
	.start		= H4_CS0_BASE,
	.end		= H4_CS0_BASE + SZ_64M - 1,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device h4_flash_device = {
	.name		= "omapflash",
	.id		= 0,
	.dev		= {
		.platform_data	= &h4_flash_data,
	},
	.num_resources	= 1,
	.resource	= &h4_flash_resource,
};

static struct resource h4_smc91x_resources[] = {
	[0] = {
		.start  = OMAP24XX_ETHR_START,          /* Physical */
		.end    = OMAP24XX_ETHR_START + 0xf,
		.flags  = IORESOURCE_MEM,
	},
	[1] = {
		.start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
		.end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
		.flags  = IORESOURCE_IRQ,
	},
};

static struct platform_device h4_smc91x_device = {
	.name		= "smc91x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(h4_smc91x_resources),
	.resource	= h4_smc91x_resources,
};

/* Select between the IrDA and aGPS module
 */
static int h4_select_irda(struct device *dev, int state)
{
	unsigned char expa;
	int err = 0;

	if ((err = read_gpio_expa(&expa, 0x21))) {
		printk(KERN_ERR "Error reading from I/O expander\n");
		return err;
	}

	/* 'P6' enable/disable IRDA_TX and IRDA_RX */
	if (state & IR_SEL) {	/* IrDa */
		if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
			printk(KERN_ERR "Error writing to I/O expander\n");
			return err;
		}
	} else {
		if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
			printk(KERN_ERR "Error writing to I/O expander\n");
			return err;
		}
	}
	return err;
}

static void set_trans_mode(void *data)
{
	int *mode = data;
	unsigned char expa;
	int err = 0;

	if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
		printk(KERN_ERR "Error reading from I/O expander\n");
	}

	expa &= ~0x01;

	if (!(*mode & IR_SIRMODE)) { /* MIR/FIR */
		expa |= 0x01;
	}

	if ((err = write_gpio_expa(expa, 0x20)) != 0) {
		printk(KERN_ERR "Error writing to I/O expander\n");
	}
}

static int h4_transceiver_mode(struct device *dev, int mode)
{
	struct omap_irda_config *irda_config = dev->platform_data;

	cancel_delayed_work(&irda_config->gpio_expa);
	PREPARE_WORK(&irda_config->gpio_expa, set_trans_mode, &mode);
#error this is not permitted - mode is an argument variable
	schedule_delayed_work(&irda_config->gpio_expa, 0);

	return 0;
}

static struct omap_irda_config h4_irda_data = {
	.transceiver_cap	= IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
	.transceiver_mode	= h4_transceiver_mode,
	.select_irda	 	= h4_select_irda,
	.rx_channel		= OMAP24XX_DMA_UART3_RX,
	.tx_channel		= OMAP24XX_DMA_UART3_TX,
	.dest_start		= OMAP_UART3_BASE,
	.src_start		= OMAP_UART3_BASE,
	.tx_trigger		= OMAP24XX_DMA_UART3_TX,
	.rx_trigger		= OMAP24XX_DMA_UART3_RX,
};

static struct resource h4_irda_resources[] = {
	[0] = {
		.start	= INT_24XX_UART3_IRQ,
		.end	= INT_24XX_UART3_IRQ,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device h4_irda_device = {
	.name		= "omapirda",
	.id		= -1,
	.dev		= {
		.platform_data	= &h4_irda_data,
	},
	.num_resources	= 1,
	.resource	= h4_irda_resources,
};

static struct omap_kp_platform_data h4_kp_data = {
	.rows		= 6,
	.cols		= 7,
	.keymap 	= h4_keymap,
	.keymapsize 	= ARRAY_SIZE(h4_keymap),
	.rep		= 1,
	.row_gpios 	= row_gpios,
	.col_gpios 	= col_gpios,
};

static struct platform_device h4_kp_device = {
	.name		= "omap-keypad",
	.id		= -1,
	.dev		= {
		.platform_data = &h4_kp_data,
	},
};

static struct platform_device h4_lcd_device = {
	.name		= "lcd_h4",
	.id		= -1,
};

static struct platform_device *h4_devices[] __initdata = {
	&h4_smc91x_device,
	&h4_flash_device,
	&h4_irda_device,
	&h4_kp_device,
	&h4_lcd_device,
};

static inline void __init h4_init_smc91x(void)
{
	/* Make sure CS1 timings are correct */
	GPMC_CONFIG1_1 = 0x00011200;
	GPMC_CONFIG2_1 = 0x001f1f01;
	GPMC_CONFIG3_1 = 0x00080803;
	GPMC_CONFIG4_1 = 0x1c091c09;
	GPMC_CONFIG5_1 = 0x041f1f1f;
	GPMC_CONFIG6_1 = 0x000004c4;
	GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
	udelay(100);

	omap_cfg_reg(M15_24XX_GPIO92);
	if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
		printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
			OMAP24XX_ETHR_GPIO_IRQ);
		return;
	}
	omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
}

static void __init omap_h4_init_irq(void)
{
	omap2_init_common_hw();
	omap_init_irq();
	omap_gpio_init();
	h4_init_smc91x();
}

static struct omap_uart_config h4_uart_config __initdata = {
	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct omap_mmc_config h4_mmc_config __initdata = {
	.mmc [0] = {
		.enabled	= 1,
		.wire4		= 1,
		.wp_pin		= -1,
		.power_pin	= -1,
		.switch_pin	= -1,
	},
};

static struct omap_lcd_config h4_lcd_config __initdata = {
	.ctrl_name	= "internal",
};

static struct omap_board_config_kernel h4_config[] = {
	{ OMAP_TAG_UART,	&h4_uart_config },
	{ OMAP_TAG_MMC,		&h4_mmc_config },
	{ OMAP_TAG_LCD,		&h4_lcd_config },
};

static void __init omap_h4_init(void)
{
	/*
	 * Make sure the serial ports are muxed on at this point.
	 * You have to mux them off in device drivers later on
	 * if not needed.
	 */
#if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
	omap_cfg_reg(K15_24XX_UART3_TX);
	omap_cfg_reg(K14_24XX_UART3_RX);
#endif

#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
	if (omap_has_menelaus()) {
		row_gpios[5] = 0;
		col_gpios[2] = 15;
		col_gpios[6] = 18;
	}
#endif

	platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
	omap_board_config = h4_config;
	omap_board_config_size = ARRAY_SIZE(h4_config);
	omap_serial_init();
}

static void __init omap_h4_map_io(void)
{
	omap2_map_common_io();
}

MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
	/* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= omap_h4_map_io,
	.init_irq	= omap_h4_init_irq,
	.init_machine	= omap_h4_init,
	.timer		= &omap_timer,
MACHINE_END