1. 根目录:
2. arch
3. arm
4. mach-s3c24xx
5. mach-anubis.c

/* linux/arch/arm/mach-s3c2440/mach-anubis.c
 *
 * Copyright 2003-2009 Simtec Electronics
 *	http://armlinux.simtec.co.uk/
 *	Ben Dooks <ben@simtec.co.uk>
 *
 * 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/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/sm501.h>
#include <linux/sm501-regs.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>

#include <plat/regs-serial.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
#include <mach/gpio-samsung.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>

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

#include <net/ax88796.h>

#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <linux/platform_data/asoc-s3c24xx_simtec.h>
#include <plat/samsung-time.h>

#include "anubis.h"
#include "common.h"
#include "simtec.h"

#define COPYRIGHT ", Copyright 2005-2009 Simtec Electronics"

static struct map_desc anubis_iodesc[] __initdata = {
  /* ISA IO areas */

  {
	.virtual	= (u32)S3C24XX_VA_ISA_BYTE,
	.pfn		= __phys_to_pfn(0x0),
	.length		= SZ_4M,
	.type		= MT_DEVICE,
  }, {
	.virtual	= (u32)S3C24XX_VA_ISA_WORD,
	.pfn		= __phys_to_pfn(0x0),
	.length 	= SZ_4M,
	.type		= MT_DEVICE,
  },

  /* we could possibly compress the next set down into a set of smaller tables
   * pagetables, but that would mean using an L2 section, and it still means
   * we cannot actually feed the same register to an LDR due to 16K spacing
   */

  /* CPLD control registers */

  {
	.virtual	= (u32)ANUBIS_VA_CTRL1,
	.pfn		= __phys_to_pfn(ANUBIS_PA_CTRL1),
	.length		= SZ_4K,
	.type		= MT_DEVICE,
  }, {
	.virtual	= (u32)ANUBIS_VA_IDREG,
	.pfn		= __phys_to_pfn(ANUBIS_PA_IDREG),
	.length		= SZ_4K,
	.type		= MT_DEVICE,
  },
};

#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE

static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
	[0] = {
		.hwport	     = 0,
		.flags	     = 0,
		.ucon	     = UCON,
		.ulcon	     = ULCON,
		.ufcon	     = UFCON,
		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
	},
	[1] = {
		.hwport	     = 2,
		.flags	     = 0,
		.ucon	     = UCON,
		.ulcon	     = ULCON,
		.ufcon	     = UFCON,
		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
	},
};

/* NAND Flash on Anubis board */

static int external_map[]   = { 2 };
static int chip0_map[]      = { 0 };
static int chip1_map[]      = { 1 };

static struct mtd_partition __initdata anubis_default_nand_part[] = {
	[0] = {
		.name	= "Boot Agent",
		.size	= SZ_16K,
		.offset	= 0,
	},
	[1] = {
		.name	= "/boot",
		.size	= SZ_4M - SZ_16K,
		.offset	= SZ_16K,
	},
	[2] = {
		.name	= "user1",
		.offset	= SZ_4M,
		.size	= SZ_32M - SZ_4M,
	},
	[3] = {
		.name	= "user2",
		.offset	= SZ_32M,
		.size	= MTDPART_SIZ_FULL,
	}
};

static struct mtd_partition __initdata anubis_default_nand_part_large[] = {
	[0] = {
		.name	= "Boot Agent",
		.size	= SZ_128K,
		.offset	= 0,
	},
	[1] = {
		.name	= "/boot",
		.size	= SZ_4M - SZ_128K,
		.offset	= SZ_128K,
	},
	[2] = {
		.name	= "user1",
		.offset	= SZ_4M,
		.size	= SZ_32M - SZ_4M,
	},
	[3] = {
		.name	= "user2",
		.offset	= SZ_32M,
		.size	= MTDPART_SIZ_FULL,
	}
};

/* the Anubis has 3 selectable slots for nand-flash, the two
 * on-board chip areas, as well as the external slot.
 *
 * Note, there is no current hot-plug support for the External
 * socket.
*/

static struct s3c2410_nand_set __initdata anubis_nand_sets[] = {
	[1] = {
		.name		= "External",
		.nr_chips	= 1,
		.nr_map		= external_map,
		.nr_partitions	= ARRAY_SIZE(anubis_default_nand_part),
		.partitions	= anubis_default_nand_part,
	},
	[0] = {
		.name		= "chip0",
		.nr_chips	= 1,
		.nr_map		= chip0_map,
		.nr_partitions	= ARRAY_SIZE(anubis_default_nand_part),
		.partitions	= anubis_default_nand_part,
	},
	[2] = {
		.name		= "chip1",
		.nr_chips	= 1,
		.nr_map		= chip1_map,
		.nr_partitions	= ARRAY_SIZE(anubis_default_nand_part),
		.partitions	= anubis_default_nand_part,
	},
};

static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
{
	unsigned int tmp;

	slot = set->nr_map[slot] & 3;

	pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
		 slot, set, set->nr_map);

	tmp = __raw_readb(ANUBIS_VA_CTRL1);
	tmp &= ~ANUBIS_CTRL1_NANDSEL;
	tmp |= slot;

	pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);

	__raw_writeb(tmp, ANUBIS_VA_CTRL1);
}

static struct s3c2410_platform_nand __initdata anubis_nand_info = {
	.tacls		= 25,
	.twrph0		= 55,
	.twrph1		= 40,
	.nr_sets	= ARRAY_SIZE(anubis_nand_sets),
	.sets		= anubis_nand_sets,
	.select_chip	= anubis_nand_select,
};

/* IDE channels */

static struct pata_platform_info anubis_ide_platdata = {
	.ioport_shift	= 5,
};

static struct resource anubis_ide0_resource[] = {
	[0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32),
	[2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32),
	[3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
};

static struct platform_device anubis_device_ide0 = {
	.name		= "pata_platform",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(anubis_ide0_resource),
	.resource	= anubis_ide0_resource,
	.dev	= {
		.platform_data = &anubis_ide_platdata,
		.coherent_dma_mask = ~0,
	},
};

static struct resource anubis_ide1_resource[] = {
	[0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32),
	[1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32),
	[2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
};

static struct platform_device anubis_device_ide1 = {
	.name		= "pata_platform",
	.id		= 1,
	.num_resources	= ARRAY_SIZE(anubis_ide1_resource),
	.resource	= anubis_ide1_resource,
	.dev	= {
		.platform_data = &anubis_ide_platdata,
		.coherent_dma_mask = ~0,
	},
};

/* Asix AX88796 10/100 ethernet controller */

static struct ax_plat_data anubis_asix_platdata = {
	.flags		= AXFLG_MAC_FROMDEV,
	.wordlength	= 2,
	.dcr_val	= 0x48,
	.rcr_val	= 0x40,
};

static struct resource anubis_asix_resource[] = {
	[0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20),
	[1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX),
};

static struct platform_device anubis_device_asix = {
	.name		= "ax88796",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(anubis_asix_resource),
	.resource	= anubis_asix_resource,
	.dev		= {
		.platform_data = &anubis_asix_platdata,
	}
};

/* SM501 */

static struct resource anubis_sm501_resource[] = {
	[0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M),
	[1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M),
	[2] = DEFINE_RES_IRQ(IRQ_EINT0),
};

static struct sm501_initdata anubis_sm501_initdata = {
	.gpio_high	= {
		.set	= 0x3F000000,		/* 24bit panel */
		.mask	= 0x0,
	},
	.misc_timing	= {
		.set	= 0x010100,		/* SDRAM timing */
		.mask	= 0x1F1F00,
	},
	.misc_control	= {
		.set	= SM501_MISC_PNL_24BIT,
		.mask	= 0,
	},

	.devices	= SM501_USE_GPIO,

	/* set the SDRAM and bus clocks */
	.mclk		= 72 * MHZ,
	.m1xclk		= 144 * MHZ,
};

static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
	[0] = {
		.bus_num	= 1,
		.pin_scl	= 44,
		.pin_sda	= 45,
	},
	[1] = {
		.bus_num	= 2,
		.pin_scl	= 40,
		.pin_sda	= 41,
	},
};

static struct sm501_platdata anubis_sm501_platdata = {
	.init		= &anubis_sm501_initdata,
	.gpio_base	= -1,
	.gpio_i2c	= anubis_sm501_gpio_i2c,
	.gpio_i2c_nr	= ARRAY_SIZE(anubis_sm501_gpio_i2c),
};

static struct platform_device anubis_device_sm501 = {
	.name		= "sm501",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(anubis_sm501_resource),
	.resource	= anubis_sm501_resource,
	.dev		= {
		.platform_data = &anubis_sm501_platdata,
	},
};

/* Standard Anubis devices */

static struct platform_device *anubis_devices[] __initdata = {
	&s3c_device_ohci,
	&s3c_device_wdt,
	&s3c_device_adc,
	&s3c_device_i2c0,
 	&s3c_device_rtc,
	&s3c_device_nand,
	&anubis_device_ide0,
	&anubis_device_ide1,
	&anubis_device_asix,
	&anubis_device_sm501,
};

static struct clk *anubis_clocks[] __initdata = {
	&s3c24xx_dclk0,
	&s3c24xx_dclk1,
	&s3c24xx_clkout0,
	&s3c24xx_clkout1,
	&s3c24xx_uclk,
};

/* I2C devices. */

static struct i2c_board_info anubis_i2c_devs[] __initdata = {
	{
		I2C_BOARD_INFO("tps65011", 0x48),
		.irq	= IRQ_EINT20,
	}
};

/* Audio setup */
static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = {
	.have_mic	= 1,
	.have_lout	= 1,
	.output_cdclk	= 1,
	.use_mpllin	= 1,
	.amp_gpio	= S3C2410_GPB(2),
	.amp_gain[0]	= S3C2410_GPD(10),
	.amp_gain[1]	= S3C2410_GPD(11),
};

static void __init anubis_map_io(void)
{
	/* initialise the clocks */

	s3c24xx_dclk0.parent = &clk_upll;
	s3c24xx_dclk0.rate   = 12*1000*1000;

	s3c24xx_dclk1.parent = &clk_upll;
	s3c24xx_dclk1.rate   = 24*1000*1000;

	s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
	s3c24xx_clkout1.parent  = &s3c24xx_dclk1;

	s3c24xx_uclk.parent  = &s3c24xx_clkout1;

	s3c24xx_register_clocks(anubis_clocks, ARRAY_SIZE(anubis_clocks));

	s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
	s3c24xx_init_clocks(0);
	s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);

	/* check for the newer revision boards with large page nand */

	if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
		printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
		       __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
		anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
		anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
	} else {
		/* ensure that the GPIO is setup */
		gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
		gpio_free(S3C2410_GPA(0));
	}
}

static void __init anubis_init(void)
{
	s3c_i2c0_set_platdata(NULL);
	s3c_nand_set_platdata(&anubis_nand_info);
	simtec_audio_add(NULL, false, &anubis_audio);

	platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));

	i2c_register_board_info(0, anubis_i2c_devs,
				ARRAY_SIZE(anubis_i2c_devs));
}


MACHINE_START(ANUBIS, "Simtec-Anubis")
	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
	.atag_offset	= 0x100,
	.map_io		= anubis_map_io,
	.init_machine	= anubis_init,
	.init_irq	= s3c2440_init_irq,
	.init_time	= samsung_timer_init,
	.restart	= s3c244x_restart,
MACHINE_END
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