Free Electrons

Embedded Linux Experts

  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
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
/*
 * arch/arm/mach-orion5x/dns323-setup.c
 *
 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
 *
 * Support for HW Rev C1:
 *
 * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 */
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <linux/phy.h>
#include <linux/marvell_phy.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <asm/system_info.h>
#include <mach/orion5x.h>
#include <plat/orion-gpio.h>
#include "common.h"
#include "mpp.h"

/* Rev A1 and B1 */
#define DNS323_GPIO_LED_RIGHT_AMBER	1
#define DNS323_GPIO_LED_LEFT_AMBER	2
#define DNS323_GPIO_SYSTEM_UP		3
#define DNS323_GPIO_LED_POWER1		4
#define DNS323_GPIO_LED_POWER2		5
#define DNS323_GPIO_OVERTEMP		6
#define DNS323_GPIO_RTC			7
#define DNS323_GPIO_POWER_OFF		8
#define DNS323_GPIO_KEY_POWER		9
#define DNS323_GPIO_KEY_RESET		10

/* Rev C1 */
#define DNS323C_GPIO_KEY_POWER		1
#define DNS323C_GPIO_POWER_OFF		2
#define DNS323C_GPIO_LED_RIGHT_AMBER	8
#define DNS323C_GPIO_LED_LEFT_AMBER	9
#define DNS323C_GPIO_LED_POWER		17
#define DNS323C_GPIO_FAN_BIT1		18
#define DNS323C_GPIO_FAN_BIT0		19

/* Exposed to userspace, do not change */
enum {
	DNS323_REV_A1,	/* 0 */
	DNS323_REV_B1,	/* 1 */
	DNS323_REV_C1,	/* 2 */
};


/****************************************************************************
 * PCI setup
 */

static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
	int irq;

	/*
	 * Check for devices with hard-wired IRQs.
	 */
	irq = orion5x_pci_map_irq(dev, slot, pin);
	if (irq != -1)
		return irq;

	return -1;
}

static struct hw_pci dns323_pci __initdata = {
	.nr_controllers = 2,
	.setup		= orion5x_pci_sys_setup,
	.scan		= orion5x_pci_sys_scan_bus,
	.map_irq	= dns323_pci_map_irq,
};

static int __init dns323_pci_init(void)
{
	/* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI
	 * gets in the way of initialising the SATA controller.
	 */
	if (machine_is_dns323() && system_rev == DNS323_REV_A1)
		pci_common_init(&dns323_pci);

	return 0;
}

subsys_initcall(dns323_pci_init);

/****************************************************************************
 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
 *
 * Layout as used by D-Link:
 *  0x00000000-0x00010000 : "MTD1"
 *  0x00010000-0x00020000 : "MTD2"
 *  0x00020000-0x001a0000 : "Linux Kernel"
 *  0x001a0000-0x007d0000 : "File System"
 *  0x007d0000-0x00800000 : "u-boot"
 */

#define DNS323_NOR_BOOT_BASE 0xf4000000
#define DNS323_NOR_BOOT_SIZE SZ_8M

static struct mtd_partition dns323_partitions[] = {
	{
		.name	= "MTD1",
		.size	= 0x00010000,
		.offset	= 0,
	}, {
		.name	= "MTD2",
		.size	= 0x00010000,
		.offset = 0x00010000,
	}, {
		.name	= "Linux Kernel",
		.size	= 0x00180000,
		.offset	= 0x00020000,
	}, {
		.name	= "File System",
		.size	= 0x00630000,
		.offset	= 0x001A0000,
	}, {
		.name	= "u-boot",
		.size	= 0x00030000,
		.offset	= 0x007d0000,
	},
};

static struct physmap_flash_data dns323_nor_flash_data = {
	.width		= 1,
	.parts		= dns323_partitions,
	.nr_parts	= ARRAY_SIZE(dns323_partitions)
};

static struct resource dns323_nor_flash_resource = {
	.flags		= IORESOURCE_MEM,
	.start		= DNS323_NOR_BOOT_BASE,
	.end		= DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
};

static struct platform_device dns323_nor_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &dns323_nor_flash_data,
	},
	.resource	= &dns323_nor_flash_resource,
	.num_resources	= 1,
};

/****************************************************************************
 * Ethernet
 */

static struct mv643xx_eth_platform_data dns323_eth_data = {
	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};

/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
 * functions be kept somewhere?
 */
static int __init dns323_parse_hex_nibble(char n)
{
	if (n >= '0' && n <= '9')
		return n - '0';

	if (n >= 'A' && n <= 'F')
		return n - 'A' + 10;

	if (n >= 'a' && n <= 'f')
		return n - 'a' + 10;

	return -1;
}

static int __init dns323_parse_hex_byte(const char *b)
{
	int hi;
	int lo;

	hi = dns323_parse_hex_nibble(b[0]);
	lo = dns323_parse_hex_nibble(b[1]);

	if (hi < 0 || lo < 0)
		return -1;

	return (hi << 4) | lo;
}

static int __init dns323_read_mac_addr(void)
{
	u_int8_t addr[6];
	int i;
	char *mac_page;

	/* MAC address is stored as a regular ol' string in /dev/mtdblock4
	 * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
	 */
	mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
	if (!mac_page)
		return -ENOMEM;

	/* Sanity check the string we're looking at */
	for (i = 0; i < 5; i++) {
		if (*(mac_page + (i * 3) + 2) != ':') {
			goto error_fail;
		}
	}

	for (i = 0; i < 6; i++)	{
		int byte;

		byte = dns323_parse_hex_byte(mac_page + (i * 3));
		if (byte < 0) {
			goto error_fail;
		}

		addr[i] = byte;
	}

	iounmap(mac_page);
	printk("DNS-323: Found ethernet MAC address: ");
	for (i = 0; i < 6; i++)
		printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");

	memcpy(dns323_eth_data.mac_addr, addr, 6);

	return 0;

error_fail:
	iounmap(mac_page);
	return -EINVAL;
}

/****************************************************************************
 * GPIO LEDs (simple - doesn't use hardware blinking support)
 */

static struct gpio_led dns323ab_leds[] = {
	{
		.name = "power:blue",
		.gpio = DNS323_GPIO_LED_POWER2,
		.default_trigger = "default-on",
	}, {
		.name = "right:amber",
		.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
		.active_low = 1,
	}, {
		.name = "left:amber",
		.gpio = DNS323_GPIO_LED_LEFT_AMBER,
		.active_low = 1,
	},
};


static struct gpio_led dns323c_leds[] = {
	{
		.name = "power:blue",
		.gpio = DNS323C_GPIO_LED_POWER,
		.default_trigger = "timer",
		.active_low = 1,
	}, {
		.name = "right:amber",
		.gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
		.active_low = 1,
	}, {
		.name = "left:amber",
		.gpio = DNS323C_GPIO_LED_LEFT_AMBER,
		.active_low = 1,
	},
};


static struct gpio_led_platform_data dns323ab_led_data = {
	.num_leds	= ARRAY_SIZE(dns323ab_leds),
	.leds		= dns323ab_leds,
	.gpio_blink_set = orion_gpio_led_blink_set,
};

static struct gpio_led_platform_data dns323c_led_data = {
	.num_leds	= ARRAY_SIZE(dns323c_leds),
	.leds		= dns323c_leds,
	.gpio_blink_set = orion_gpio_led_blink_set,
};

static struct platform_device dns323_gpio_leds = {
	.name		= "leds-gpio",
	.id		= -1,
	.dev		= {
		.platform_data	= &dns323ab_led_data,
	},
};

/****************************************************************************
 * GPIO Attached Keys
 */

static struct gpio_keys_button dns323ab_buttons[] = {
	{
		.code		= KEY_RESTART,
		.gpio		= DNS323_GPIO_KEY_RESET,
		.desc		= "Reset Button",
		.active_low	= 1,
	}, {
		.code		= KEY_POWER,
		.gpio		= DNS323_GPIO_KEY_POWER,
		.desc		= "Power Button",
		.active_low	= 1,
	},
};

static struct gpio_keys_platform_data dns323ab_button_data = {
	.buttons	= dns323ab_buttons,
	.nbuttons	= ARRAY_SIZE(dns323ab_buttons),
};

static struct gpio_keys_button dns323c_buttons[] = {
	{
		.code		= KEY_POWER,
		.gpio		= DNS323C_GPIO_KEY_POWER,
		.desc		= "Power Button",
		.active_low	= 1,
	},
};

static struct gpio_keys_platform_data dns323c_button_data = {
	.buttons	= dns323c_buttons,
	.nbuttons	= ARRAY_SIZE(dns323c_buttons),
};

static struct platform_device dns323_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.num_resources	= 0,
	.dev		= {
		.platform_data	= &dns323ab_button_data,
	},
};

/*****************************************************************************
 * SATA
 */
static struct mv_sata_platform_data dns323_sata_data = {
       .n_ports        = 2,
};

/****************************************************************************
 * General Setup
 */
static unsigned int dns323a_mpp_modes[] __initdata = {
	MPP0_PCIE_RST_OUTn,
	MPP1_GPIO,		/* right amber LED (sata ch0) */
	MPP2_GPIO,		/* left amber LED (sata ch1) */
	MPP3_UNUSED,
	MPP4_GPIO,		/* power button LED */
	MPP5_GPIO,		/* power button LED */
	MPP6_GPIO,		/* GMT G751-2f overtemp */
	MPP7_GPIO,		/* M41T80 nIRQ/OUT/SQW */
	MPP8_GPIO,		/* triggers power off */
	MPP9_GPIO,		/* power button switch */
	MPP10_GPIO,		/* reset button switch */
	MPP11_UNUSED,
	MPP12_UNUSED,
	MPP13_UNUSED,
	MPP14_UNUSED,
	MPP15_UNUSED,
	MPP16_UNUSED,
	MPP17_UNUSED,
	MPP18_UNUSED,
	MPP19_UNUSED,
	0,
};

static unsigned int dns323b_mpp_modes[] __initdata = {
	MPP0_UNUSED,
	MPP1_GPIO,		/* right amber LED (sata ch0) */
	MPP2_GPIO,		/* left amber LED (sata ch1) */
	MPP3_GPIO,		/* system up flag */
	MPP4_GPIO,		/* power button LED */
	MPP5_GPIO,		/* power button LED */
	MPP6_GPIO,		/* GMT G751-2f overtemp */
	MPP7_GPIO,		/* M41T80 nIRQ/OUT/SQW */
	MPP8_GPIO,		/* triggers power off */
	MPP9_GPIO,		/* power button switch */
	MPP10_GPIO,		/* reset button switch */
	MPP11_UNUSED,
	MPP12_SATA_LED,
	MPP13_SATA_LED,
	MPP14_SATA_LED,
	MPP15_SATA_LED,
	MPP16_UNUSED,
	MPP17_UNUSED,
	MPP18_UNUSED,
	MPP19_UNUSED,
	0,
};

static unsigned int dns323c_mpp_modes[] __initdata = {
	MPP0_GPIO,		/* ? input */
	MPP1_GPIO,		/* input power switch (0 = pressed) */
	MPP2_GPIO,		/* output power off */
	MPP3_UNUSED,		/* ? output */
	MPP4_UNUSED,		/* ? output */
	MPP5_UNUSED,		/* ? output */
	MPP6_UNUSED,		/* ? output */
	MPP7_UNUSED,		/* ? output */
	MPP8_GPIO,		/* i/o right amber LED */
	MPP9_GPIO,		/* i/o left amber LED */
	MPP10_GPIO,		/* input */
	MPP11_UNUSED,
	MPP12_SATA_LED,
	MPP13_SATA_LED,
	MPP14_SATA_LED,
	MPP15_SATA_LED,
	MPP16_UNUSED,
	MPP17_GPIO,		/* power button LED */
	MPP18_GPIO,		/* fan speed bit 0 */
	MPP19_GPIO,		/* fan speed bit 1 */
	0,
};

/* Rev C1 Fan speed notes:
 *
 * The fan is controlled by 2 GPIOs on this board. The settings
 * of the bits is as follow:
 *
 *  GPIO 18    GPIO 19    Fan
 *
 *    0          0        stopped
 *    0          1        low speed
 *    1          0        high speed
 *    1          1        don't do that (*)
 *
 * (*) I think the two bits control two feed-in resistors into a fixed
 *     PWN circuit, setting both bits will basically go a 'bit' faster
 *     than high speed, but d-link doesn't do it and you may get out of
 *     HW spec so don't do it.
 */

/*
 * On the DNS-323 A1 and B1 the following devices are attached via I2C:
 *
 *  i2c addr | chip        | description
 *  0x3e     | GMT G760Af  | fan speed PWM controller
 *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 *  0x68     | ST M41T80   | RTC w/ alarm
 */
static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
	{
		I2C_BOARD_INFO("g760a", 0x3e),
	}, {
		I2C_BOARD_INFO("lm75", 0x48),
	}, {
		I2C_BOARD_INFO("m41t80", 0x68),
	},
};

/*
 * On the DNS-323 C1 the following devices are attached via I2C:
 *
 *  i2c addr | chip        | description
 *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 *  0x68     | ST M41T80   | RTC w/ alarm
 */
static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
	{
		I2C_BOARD_INFO("lm75", 0x48),
	}, {
		I2C_BOARD_INFO("m41t80", 0x68),
	},
};

/* DNS-323 rev. A specific power off method */
static void dns323a_power_off(void)
{
	pr_info("DNS-323: Triggering power-off...\n");
	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
}

/* DNS-323 rev B specific power off method */
static void dns323b_power_off(void)
{
	pr_info("DNS-323: Triggering power-off...\n");
	/* Pin has to be changed to 1 and back to 0 to do actual power off. */
	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
	mdelay(100);
	gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
}

/* DNS-323 rev. C specific power off method */
static void dns323c_power_off(void)
{
	pr_info("DNS-323: Triggering power-off...\n");
	gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
}

static int dns323c_phy_fixup(struct phy_device *phy)
{
	phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;

	return 0;
}

static int __init dns323_identify_rev(void)
{
	u32 dev, rev, i, reg;

	pr_debug("DNS-323: Identifying board ... \n");

	/* Rev A1 has a 5181 */
	orion5x_pcie_id(&dev, &rev);
	if (dev == MV88F5181_DEV_ID) {
		pr_debug("DNS-323: 5181 found, board is A1\n");
		return DNS323_REV_A1;
	}
	pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");

	/* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
	 * a bit gross but we want to do that without links into the eth
	 * driver so let's poke at it directly. We default to rev B1 in
	 * case the accesses fail
	 */

#define ETH_SMI_REG		(ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
#define  SMI_BUSY		0x10000000
#define  SMI_READ_VALID		0x08000000
#define  SMI_OPCODE_READ	0x04000000
#define  SMI_OPCODE_WRITE	0x00000000

	for (i = 0; i < 1000; i++) {
		reg = readl(ETH_SMI_REG);
		if (!(reg & SMI_BUSY))
			break;
	}
	if (i >= 1000) {
		pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n");
		return DNS323_REV_B1;
	}
	writel((3 << 21)	/* phy ID reg */ |
	       (8 << 16)	/* phy addr */ |
	       SMI_OPCODE_READ, ETH_SMI_REG);
	for (i = 0; i < 1000; i++) {
		reg = readl(ETH_SMI_REG);
		if (reg & SMI_READ_VALID)
			break;
	}
	if (i >= 1000) {
		pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n");
		return DNS323_REV_B1;
	}
	pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);

	/* Note: the Marvell tools mask the ID with 0x3f0 before comparison
	 * but I don't see that making a difference here, at least with
	 * any known Marvell PHY ID
	 */
	switch(reg & 0xfff0) {
	case 0x0cc0: /* MV88E1111 */
		return DNS323_REV_B1;
	case 0x0e10: /* MV88E1118 */
		return DNS323_REV_C1;
	default:
		pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
			   reg & 0xffff);
	}
	return DNS323_REV_B1;
}

static void __init dns323_init(void)
{
	/* Setup basic Orion functions. Need to be called early. */
	orion5x_init();

	/* Identify revision */
	system_rev = dns323_identify_rev();
	pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);

	/* Just to be tricky, the 5182 has a completely different
	 * set of MPP modes to the 5181.
	 */
	switch(system_rev) {
	case DNS323_REV_A1:
		orion5x_mpp_conf(dns323a_mpp_modes);
		writel(0, MPP_DEV_CTRL);		/* DEV_D[31:16] */
		break;
	case DNS323_REV_B1:
		orion5x_mpp_conf(dns323b_mpp_modes);
		break;
	case DNS323_REV_C1:
		orion5x_mpp_conf(dns323c_mpp_modes);
		break;
	}

	/* setup flash mapping
	 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
	 */
	mvebu_mbus_add_window("devbus-boot", DNS323_NOR_BOOT_BASE,
			      DNS323_NOR_BOOT_SIZE);
	platform_device_register(&dns323_nor_flash);

	/* Sort out LEDs, Buttons and i2c devices */
	switch(system_rev) {
	case DNS323_REV_A1:
		/* The 5181 power LED is active low and requires
		 * DNS323_GPIO_LED_POWER1 to also be low.
		 */
		 dns323ab_leds[0].active_low = 1;
		 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
		 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
		/* Fall through */
	case DNS323_REV_B1:
		i2c_register_board_info(0, dns323ab_i2c_devices,
				ARRAY_SIZE(dns323ab_i2c_devices));
		break;
	case DNS323_REV_C1:
		/* Hookup LEDs & Buttons */
		dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
		dns323_button_device.dev.platform_data = &dns323c_button_data;

		/* Hookup i2c devices and fan driver */
		i2c_register_board_info(0, dns323c_i2c_devices,
				ARRAY_SIZE(dns323c_i2c_devices));
		platform_device_register_simple("dns323c-fan", 0, NULL, 0);

		/* Register fixup for the PHY LEDs */
		phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
					   MARVELL_PHY_ID_MASK,
					   dns323c_phy_fixup);
	}

	platform_device_register(&dns323_gpio_leds);
	platform_device_register(&dns323_button_device);

	/*
	 * Configure peripherals.
	 */
	if (dns323_read_mac_addr() < 0)
		printk("DNS-323: Failed to read MAC address\n");
	orion5x_ehci0_init();
	orion5x_eth_init(&dns323_eth_data);
	orion5x_i2c_init();
	orion5x_uart0_init();

	/* Remaining GPIOs */
	switch(system_rev) {
	case DNS323_REV_A1:
		/* Poweroff GPIO */
		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
			pr_err("DNS-323: failed to setup power-off GPIO\n");
		pm_power_off = dns323a_power_off;
		break;
	case DNS323_REV_B1:
		/* 5182 built-in SATA init */
		orion5x_sata_init(&dns323_sata_data);

		/* The DNS323 rev B1 has flag to indicate the system is up.
		 * Without this flag set, power LED will flash and cannot be
		 * controlled via leds-gpio.
		 */
		if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
			gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);

		/* Poweroff GPIO */
		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
			pr_err("DNS-323: failed to setup power-off GPIO\n");
		pm_power_off = dns323b_power_off;
		break;
	case DNS323_REV_C1:
		/* 5182 built-in SATA init */
		orion5x_sata_init(&dns323_sata_data);

		/* Poweroff GPIO */
		if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
		    gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
			pr_err("DNS-323: failed to setup power-off GPIO\n");
		pm_power_off = dns323c_power_off;

		/* Now, -this- should theorically be done by the sata_mv driver
		 * once I figure out what's going on there. Maybe the behaviour
		 * of the LEDs should be somewhat passed via the platform_data.
		 * for now, just whack the register and make the LEDs happy
		 *
		 * Note: AFAIK, rev B1 needs the same treatement but I'll let
		 * somebody else test it.
		 */
		writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c);
		break;
	}
}

/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
MACHINE_START(DNS323, "D-Link DNS-323")
	/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
	.atag_offset	= 0x100,
	.init_machine	= dns323_init,
	.map_io		= orion5x_map_io,
	.init_early	= orion5x_init_early,
	.init_irq	= orion5x_init_irq,
	.init_time	= orion5x_timer_init,
	.fixup		= tag_fixup_mem32,
	.restart	= orion5x_restart,
MACHINE_END