PageRenderTime 62ms CodeModel.GetById 32ms app.highlight 22ms RepoModel.GetById 1ms app.codeStats 0ms

/arch/arm/mach-orion5x/dns323-setup.c

https://github.com/AICP/kernel_asus_grouper
C | 740 lines | 505 code | 91 blank | 144 comment | 44 complexity | c6f427ca2b7f64c5f1f6ab1221043f0e MD5 | raw file
  1/*
  2 * arch/arm/mach-orion5x/dns323-setup.c
  3 *
  4 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
  5 *
  6 * Support for HW Rev C1:
  7 *
  8 * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org>
  9 *
 10 * This program is free software; you can redistribute it and/or modify
 11 * it under the terms of the GNU Lesser General Public License as
 12 * published by the Free Software Foundation; either version 2 of the
 13 * License, or (at your option) any later version.
 14 *
 15 */
 16
 17#include <linux/kernel.h>
 18#include <linux/init.h>
 19#include <linux/delay.h>
 20#include <linux/platform_device.h>
 21#include <linux/pci.h>
 22#include <linux/irq.h>
 23#include <linux/mtd/physmap.h>
 24#include <linux/mv643xx_eth.h>
 25#include <linux/leds.h>
 26#include <linux/gpio_keys.h>
 27#include <linux/input.h>
 28#include <linux/i2c.h>
 29#include <linux/ata_platform.h>
 30#include <linux/phy.h>
 31#include <linux/marvell_phy.h>
 32#include <asm/mach-types.h>
 33#include <asm/gpio.h>
 34#include <asm/mach/arch.h>
 35#include <asm/mach/pci.h>
 36#include <mach/orion5x.h>
 37#include "common.h"
 38#include "mpp.h"
 39
 40/* Rev A1 and B1 */
 41#define DNS323_GPIO_LED_RIGHT_AMBER	1
 42#define DNS323_GPIO_LED_LEFT_AMBER	2
 43#define DNS323_GPIO_SYSTEM_UP		3
 44#define DNS323_GPIO_LED_POWER1		4
 45#define DNS323_GPIO_LED_POWER2		5
 46#define DNS323_GPIO_OVERTEMP		6
 47#define DNS323_GPIO_RTC			7
 48#define DNS323_GPIO_POWER_OFF		8
 49#define DNS323_GPIO_KEY_POWER		9
 50#define DNS323_GPIO_KEY_RESET		10
 51
 52/* Rev C1 */
 53#define DNS323C_GPIO_KEY_POWER		1
 54#define DNS323C_GPIO_POWER_OFF		2
 55#define DNS323C_GPIO_LED_RIGHT_AMBER	8
 56#define DNS323C_GPIO_LED_LEFT_AMBER	9
 57#define DNS323C_GPIO_LED_POWER		17
 58#define DNS323C_GPIO_FAN_BIT1		18
 59#define DNS323C_GPIO_FAN_BIT0		19
 60
 61/* Exposed to userspace, do not change */
 62enum {
 63	DNS323_REV_A1,	/* 0 */
 64	DNS323_REV_B1,	/* 1 */
 65	DNS323_REV_C1,	/* 2 */
 66};
 67
 68
 69/****************************************************************************
 70 * PCI setup
 71 */
 72
 73static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 74{
 75	int irq;
 76
 77	/*
 78	 * Check for devices with hard-wired IRQs.
 79	 */
 80	irq = orion5x_pci_map_irq(dev, slot, pin);
 81	if (irq != -1)
 82		return irq;
 83
 84	return -1;
 85}
 86
 87static struct hw_pci dns323_pci __initdata = {
 88	.nr_controllers = 2,
 89	.swizzle	= pci_std_swizzle,
 90	.setup		= orion5x_pci_sys_setup,
 91	.scan		= orion5x_pci_sys_scan_bus,
 92	.map_irq	= dns323_pci_map_irq,
 93};
 94
 95static int __init dns323_pci_init(void)
 96{
 97	/* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI
 98	 * gets in the way of initialising the SATA controller.
 99	 */
100	if (machine_is_dns323() && system_rev == DNS323_REV_A1)
101		pci_common_init(&dns323_pci);
102
103	return 0;
104}
105
106subsys_initcall(dns323_pci_init);
107
108/****************************************************************************
109 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
110 *
111 * Layout as used by D-Link:
112 *  0x00000000-0x00010000 : "MTD1"
113 *  0x00010000-0x00020000 : "MTD2"
114 *  0x00020000-0x001a0000 : "Linux Kernel"
115 *  0x001a0000-0x007d0000 : "File System"
116 *  0x007d0000-0x00800000 : "u-boot"
117 */
118
119#define DNS323_NOR_BOOT_BASE 0xf4000000
120#define DNS323_NOR_BOOT_SIZE SZ_8M
121
122static struct mtd_partition dns323_partitions[] = {
123	{
124		.name	= "MTD1",
125		.size	= 0x00010000,
126		.offset	= 0,
127	}, {
128		.name	= "MTD2",
129		.size	= 0x00010000,
130		.offset = 0x00010000,
131	}, {
132		.name	= "Linux Kernel",
133		.size	= 0x00180000,
134		.offset	= 0x00020000,
135	}, {
136		.name	= "File System",
137		.size	= 0x00630000,
138		.offset	= 0x001A0000,
139	}, {
140		.name	= "u-boot",
141		.size	= 0x00030000,
142		.offset	= 0x007d0000,
143	},
144};
145
146static struct physmap_flash_data dns323_nor_flash_data = {
147	.width		= 1,
148	.parts		= dns323_partitions,
149	.nr_parts	= ARRAY_SIZE(dns323_partitions)
150};
151
152static struct resource dns323_nor_flash_resource = {
153	.flags		= IORESOURCE_MEM,
154	.start		= DNS323_NOR_BOOT_BASE,
155	.end		= DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
156};
157
158static struct platform_device dns323_nor_flash = {
159	.name		= "physmap-flash",
160	.id		= 0,
161	.dev		= {
162		.platform_data	= &dns323_nor_flash_data,
163	},
164	.resource	= &dns323_nor_flash_resource,
165	.num_resources	= 1,
166};
167
168/****************************************************************************
169 * Ethernet
170 */
171
172static struct mv643xx_eth_platform_data dns323_eth_data = {
173	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
174};
175
176/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
177 * functions be kept somewhere?
178 */
179static int __init dns323_parse_hex_nibble(char n)
180{
181	if (n >= '0' && n <= '9')
182		return n - '0';
183
184	if (n >= 'A' && n <= 'F')
185		return n - 'A' + 10;
186
187	if (n >= 'a' && n <= 'f')
188		return n - 'a' + 10;
189
190	return -1;
191}
192
193static int __init dns323_parse_hex_byte(const char *b)
194{
195	int hi;
196	int lo;
197
198	hi = dns323_parse_hex_nibble(b[0]);
199	lo = dns323_parse_hex_nibble(b[1]);
200
201	if (hi < 0 || lo < 0)
202		return -1;
203
204	return (hi << 4) | lo;
205}
206
207static int __init dns323_read_mac_addr(void)
208{
209	u_int8_t addr[6];
210	int i;
211	char *mac_page;
212
213	/* MAC address is stored as a regular ol' string in /dev/mtdblock4
214	 * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
215	 */
216	mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
217	if (!mac_page)
218		return -ENOMEM;
219
220	/* Sanity check the string we're looking at */
221	for (i = 0; i < 5; i++) {
222		if (*(mac_page + (i * 3) + 2) != ':') {
223			goto error_fail;
224		}
225	}
226
227	for (i = 0; i < 6; i++)	{
228		int byte;
229
230		byte = dns323_parse_hex_byte(mac_page + (i * 3));
231		if (byte < 0) {
232			goto error_fail;
233		}
234
235		addr[i] = byte;
236	}
237
238	iounmap(mac_page);
239	printk("DNS-323: Found ethernet MAC address: ");
240	for (i = 0; i < 6; i++)
241		printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
242
243	memcpy(dns323_eth_data.mac_addr, addr, 6);
244
245	return 0;
246
247error_fail:
248	iounmap(mac_page);
249	return -EINVAL;
250}
251
252/****************************************************************************
253 * GPIO LEDs (simple - doesn't use hardware blinking support)
254 */
255
256#define ORION_BLINK_HALF_PERIOD 100 /* ms */
257
258static int dns323_gpio_blink_set(unsigned gpio, int state,
259	unsigned long *delay_on, unsigned long *delay_off)
260{
261
262	if (delay_on && delay_off && !*delay_on && !*delay_off)
263		*delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;
264
265	switch(state) {
266	case GPIO_LED_NO_BLINK_LOW:
267	case GPIO_LED_NO_BLINK_HIGH:
268		orion_gpio_set_blink(gpio, 0);
269		gpio_set_value(gpio, state);
270		break;
271	case GPIO_LED_BLINK:
272		orion_gpio_set_blink(gpio, 1);
273	}
274	return 0;
275}
276
277static struct gpio_led dns323ab_leds[] = {
278	{
279		.name = "power:blue",
280		.gpio = DNS323_GPIO_LED_POWER2,
281		.default_trigger = "default-on",
282	}, {
283		.name = "right:amber",
284		.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
285		.active_low = 1,
286	}, {
287		.name = "left:amber",
288		.gpio = DNS323_GPIO_LED_LEFT_AMBER,
289		.active_low = 1,
290	},
291};
292
293
294static struct gpio_led dns323c_leds[] = {
295	{
296		.name = "power:blue",
297		.gpio = DNS323C_GPIO_LED_POWER,
298		.default_trigger = "timer",
299		.active_low = 1,
300	}, {
301		.name = "right:amber",
302		.gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
303		.active_low = 1,
304	}, {
305		.name = "left:amber",
306		.gpio = DNS323C_GPIO_LED_LEFT_AMBER,
307		.active_low = 1,
308	},
309};
310
311
312static struct gpio_led_platform_data dns323ab_led_data = {
313	.num_leds	= ARRAY_SIZE(dns323ab_leds),
314	.leds		= dns323ab_leds,
315	.gpio_blink_set = dns323_gpio_blink_set,
316};
317
318static struct gpio_led_platform_data dns323c_led_data = {
319	.num_leds	= ARRAY_SIZE(dns323c_leds),
320	.leds		= dns323c_leds,
321	.gpio_blink_set = dns323_gpio_blink_set,
322};
323
324static struct platform_device dns323_gpio_leds = {
325	.name		= "leds-gpio",
326	.id		= -1,
327	.dev		= {
328		.platform_data	= &dns323ab_led_data,
329	},
330};
331
332/****************************************************************************
333 * GPIO Attached Keys
334 */
335
336static struct gpio_keys_button dns323ab_buttons[] = {
337	{
338		.code		= KEY_RESTART,
339		.gpio		= DNS323_GPIO_KEY_RESET,
340		.desc		= "Reset Button",
341		.active_low	= 1,
342	}, {
343		.code		= KEY_POWER,
344		.gpio		= DNS323_GPIO_KEY_POWER,
345		.desc		= "Power Button",
346		.active_low	= 1,
347	},
348};
349
350static struct gpio_keys_platform_data dns323ab_button_data = {
351	.buttons	= dns323ab_buttons,
352	.nbuttons	= ARRAY_SIZE(dns323ab_buttons),
353};
354
355static struct gpio_keys_button dns323c_buttons[] = {
356	{
357		.code		= KEY_POWER,
358		.gpio		= DNS323C_GPIO_KEY_POWER,
359		.desc		= "Power Button",
360		.active_low	= 1,
361	},
362};
363
364static struct gpio_keys_platform_data dns323c_button_data = {
365	.buttons	= dns323c_buttons,
366	.nbuttons	= ARRAY_SIZE(dns323c_buttons),
367};
368
369static struct platform_device dns323_button_device = {
370	.name		= "gpio-keys",
371	.id		= -1,
372	.num_resources	= 0,
373	.dev		= {
374		.platform_data	= &dns323ab_button_data,
375	},
376};
377
378/*****************************************************************************
379 * SATA
380 */
381static struct mv_sata_platform_data dns323_sata_data = {
382       .n_ports        = 2,
383};
384
385/****************************************************************************
386 * General Setup
387 */
388static unsigned int dns323a_mpp_modes[] __initdata = {
389	MPP0_PCIE_RST_OUTn,
390	MPP1_GPIO,		/* right amber LED (sata ch0) */
391	MPP2_GPIO,		/* left amber LED (sata ch1) */
392	MPP3_UNUSED,
393	MPP4_GPIO,		/* power button LED */
394	MPP5_GPIO,		/* power button LED */
395	MPP6_GPIO,		/* GMT G751-2f overtemp */
396	MPP7_GPIO,		/* M41T80 nIRQ/OUT/SQW */
397	MPP8_GPIO,		/* triggers power off */
398	MPP9_GPIO,		/* power button switch */
399	MPP10_GPIO,		/* reset button switch */
400	MPP11_UNUSED,
401	MPP12_UNUSED,
402	MPP13_UNUSED,
403	MPP14_UNUSED,
404	MPP15_UNUSED,
405	MPP16_UNUSED,
406	MPP17_UNUSED,
407	MPP18_UNUSED,
408	MPP19_UNUSED,
409	0,
410};
411
412static unsigned int dns323b_mpp_modes[] __initdata = {
413	MPP0_UNUSED,
414	MPP1_GPIO,		/* right amber LED (sata ch0) */
415	MPP2_GPIO,		/* left amber LED (sata ch1) */
416	MPP3_GPIO,		/* system up flag */
417	MPP4_GPIO,		/* power button LED */
418	MPP5_GPIO,		/* power button LED */
419	MPP6_GPIO,		/* GMT G751-2f overtemp */
420	MPP7_GPIO,		/* M41T80 nIRQ/OUT/SQW */
421	MPP8_GPIO,		/* triggers power off */
422	MPP9_GPIO,		/* power button switch */
423	MPP10_GPIO,		/* reset button switch */
424	MPP11_UNUSED,
425	MPP12_SATA_LED,
426	MPP13_SATA_LED,
427	MPP14_SATA_LED,
428	MPP15_SATA_LED,
429	MPP16_UNUSED,
430	MPP17_UNUSED,
431	MPP18_UNUSED,
432	MPP19_UNUSED,
433	0,
434};
435
436static unsigned int dns323c_mpp_modes[] __initdata = {
437	MPP0_GPIO,		/* ? input */
438	MPP1_GPIO,		/* input power switch (0 = pressed) */
439	MPP2_GPIO,		/* output power off */
440	MPP3_UNUSED,		/* ? output */
441	MPP4_UNUSED,		/* ? output */
442	MPP5_UNUSED,		/* ? output */
443	MPP6_UNUSED,		/* ? output */
444	MPP7_UNUSED,		/* ? output */
445	MPP8_GPIO,		/* i/o right amber LED */
446	MPP9_GPIO,		/* i/o left amber LED */
447	MPP10_GPIO,		/* input */
448	MPP11_UNUSED,
449	MPP12_SATA_LED,
450	MPP13_SATA_LED,
451	MPP14_SATA_LED,
452	MPP15_SATA_LED,
453	MPP16_UNUSED,
454	MPP17_GPIO,		/* power button LED */
455	MPP18_GPIO,		/* fan speed bit 0 */
456	MPP19_GPIO,		/* fan speed bit 1 */
457	0,
458};
459
460/* Rev C1 Fan speed notes:
461 *
462 * The fan is controlled by 2 GPIOs on this board. The settings
463 * of the bits is as follow:
464 *
465 *  GPIO 18    GPIO 19    Fan
466 *
467 *    0          0        stopped
468 *    0          1        low speed
469 *    1          0        high speed
470 *    1          1        don't do that (*)
471 *
472 * (*) I think the two bits control two feed-in resistors into a fixed
473 *     PWN circuit, setting both bits will basically go a 'bit' faster
474 *     than high speed, but d-link doesn't do it and you may get out of
475 *     HW spec so don't do it.
476 */
477
478/*
479 * On the DNS-323 A1 and B1 the following devices are attached via I2C:
480 *
481 *  i2c addr | chip        | description
482 *  0x3e     | GMT G760Af  | fan speed PWM controller
483 *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
484 *  0x68     | ST M41T80   | RTC w/ alarm
485 */
486static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
487	{
488		I2C_BOARD_INFO("g760a", 0x3e),
489	}, {
490		I2C_BOARD_INFO("lm75", 0x48),
491	}, {
492		I2C_BOARD_INFO("m41t80", 0x68),
493	},
494};
495
496/*
497 * On the DNS-323 C1 the following devices are attached via I2C:
498 *
499 *  i2c addr | chip        | description
500 *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
501 *  0x68     | ST M41T80   | RTC w/ alarm
502 */
503static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
504	{
505		I2C_BOARD_INFO("lm75", 0x48),
506	}, {
507		I2C_BOARD_INFO("m41t80", 0x68),
508	},
509};
510
511/* DNS-323 rev. A specific power off method */
512static void dns323a_power_off(void)
513{
514	pr_info("DNS-323: Triggering power-off...\n");
515	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
516}
517
518/* DNS-323 rev B specific power off method */
519static void dns323b_power_off(void)
520{
521	pr_info("DNS-323: Triggering power-off...\n");
522	/* Pin has to be changed to 1 and back to 0 to do actual power off. */
523	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
524	mdelay(100);
525	gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
526}
527
528/* DNS-323 rev. C specific power off method */
529static void dns323c_power_off(void)
530{
531	pr_info("DNS-323: Triggering power-off...\n");
532	gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
533}
534
535static int dns323c_phy_fixup(struct phy_device *phy)
536{
537	phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;
538
539	return 0;
540}
541
542static int __init dns323_identify_rev(void)
543{
544	u32 dev, rev, i, reg;
545
546	pr_debug("DNS-323: Identifying board ... \n");
547
548	/* Rev A1 has a 5181 */
549	orion5x_pcie_id(&dev, &rev);
550	if (dev == MV88F5181_DEV_ID) {
551		pr_debug("DNS-323: 5181 found, board is A1\n");
552		return DNS323_REV_A1;
553	}
554	pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");
555
556	/* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
557	 * a bit gross but we want to do that without links into the eth
558	 * driver so let's poke at it directly. We default to rev B1 in
559	 * case the accesses fail
560	 */
561
562#define ETH_SMI_REG		(ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
563#define  SMI_BUSY		0x10000000
564#define  SMI_READ_VALID		0x08000000
565#define  SMI_OPCODE_READ	0x04000000
566#define  SMI_OPCODE_WRITE	0x00000000
567
568	for (i = 0; i < 1000; i++) {
569		reg = readl(ETH_SMI_REG);
570		if (!(reg & SMI_BUSY))
571			break;
572	}
573	if (i >= 1000) {
574		pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n");
575		return DNS323_REV_B1;
576	}
577	writel((3 << 21)	/* phy ID reg */ |
578	       (8 << 16)	/* phy addr */ |
579	       SMI_OPCODE_READ, ETH_SMI_REG);
580	for (i = 0; i < 1000; i++) {
581		reg = readl(ETH_SMI_REG);
582		if (reg & SMI_READ_VALID)
583			break;
584	}
585	if (i >= 1000) {
586		pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n");
587		return DNS323_REV_B1;
588	}
589	pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);
590
591	/* Note: the Marvell tools mask the ID with 0x3f0 before comparison
592	 * but I don't see that making a difference here, at least with
593	 * any known Marvell PHY ID
594	 */
595	switch(reg & 0xfff0) {
596	case 0x0cc0: /* MV88E1111 */
597		return DNS323_REV_B1;
598	case 0x0e10: /* MV88E1118 */
599		return DNS323_REV_C1;
600	default:
601		pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
602			   reg & 0xffff);
603	}
604	return DNS323_REV_B1;
605}
606
607static void __init dns323_init(void)
608{
609	/* Setup basic Orion functions. Need to be called early. */
610	orion5x_init();
611
612	/* Identify revision */
613	system_rev = dns323_identify_rev();
614	pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);
615
616	/* Just to be tricky, the 5182 has a completely different
617	 * set of MPP modes to the 5181.
618	 */
619	switch(system_rev) {
620	case DNS323_REV_A1:
621		orion5x_mpp_conf(dns323a_mpp_modes);
622		writel(0, MPP_DEV_CTRL);		/* DEV_D[31:16] */
623		break;
624	case DNS323_REV_B1:
625		orion5x_mpp_conf(dns323b_mpp_modes);
626		break;
627	case DNS323_REV_C1:
628		orion5x_mpp_conf(dns323c_mpp_modes);
629		break;
630	}
631
632	/* setup flash mapping
633	 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
634	 */
635	orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
636	platform_device_register(&dns323_nor_flash);
637
638	/* Sort out LEDs, Buttons and i2c devices */
639	switch(system_rev) {
640	case DNS323_REV_A1:
641		/* The 5181 power LED is active low and requires
642		 * DNS323_GPIO_LED_POWER1 to also be low.
643		 */
644		 dns323ab_leds[0].active_low = 1;
645		 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
646		 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
647		/* Fall through */
648	case DNS323_REV_B1:
649		i2c_register_board_info(0, dns323ab_i2c_devices,
650				ARRAY_SIZE(dns323ab_i2c_devices));
651		break;
652	case DNS323_REV_C1:
653		/* Hookup LEDs & Buttons */
654		dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
655		dns323_button_device.dev.platform_data = &dns323c_button_data;
656
657		/* Hookup i2c devices and fan driver */
658		i2c_register_board_info(0, dns323c_i2c_devices,
659				ARRAY_SIZE(dns323c_i2c_devices));
660		platform_device_register_simple("dns323c-fan", 0, NULL, 0);
661
662		/* Register fixup for the PHY LEDs */
663		phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
664					   MARVELL_PHY_ID_MASK,
665					   dns323c_phy_fixup);
666	}
667
668	platform_device_register(&dns323_gpio_leds);
669	platform_device_register(&dns323_button_device);
670
671	/*
672	 * Configure peripherals.
673	 */
674	if (dns323_read_mac_addr() < 0)
675		printk("DNS-323: Failed to read MAC address\n");
676	orion5x_ehci0_init();
677	orion5x_eth_init(&dns323_eth_data);
678	orion5x_i2c_init();
679	orion5x_uart0_init();
680
681	/* Remaining GPIOs */
682	switch(system_rev) {
683	case DNS323_REV_A1:
684		/* Poweroff GPIO */
685		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
686		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
687			pr_err("DNS-323: failed to setup power-off GPIO\n");
688		pm_power_off = dns323a_power_off;
689		break;
690	case DNS323_REV_B1:
691		/* 5182 built-in SATA init */
692		orion5x_sata_init(&dns323_sata_data);
693
694		/* The DNS323 rev B1 has flag to indicate the system is up.
695		 * Without this flag set, power LED will flash and cannot be
696		 * controlled via leds-gpio.
697		 */
698		if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
699			gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);
700
701		/* Poweroff GPIO */
702		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
703		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
704			pr_err("DNS-323: failed to setup power-off GPIO\n");
705		pm_power_off = dns323b_power_off;
706		break;
707	case DNS323_REV_C1:
708		/* 5182 built-in SATA init */
709		orion5x_sata_init(&dns323_sata_data);
710
711		/* Poweroff GPIO */
712		if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
713		    gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
714			pr_err("DNS-323: failed to setup power-off GPIO\n");
715		pm_power_off = dns323c_power_off;
716
717		/* Now, -this- should theorically be done by the sata_mv driver
718		 * once I figure out what's going on there. Maybe the behaviour
719		 * of the LEDs should be somewhat passed via the platform_data.
720		 * for now, just whack the register and make the LEDs happy
721		 *
722		 * Note: AFAIK, rev B1 needs the same treatement but I'll let
723		 * somebody else test it.
724		 */
725		writel(0x5, ORION5X_SATA_VIRT_BASE | 0x2c);
726		break;
727	}
728}
729
730/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
731MACHINE_START(DNS323, "D-Link DNS-323")
732	/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
733	.boot_params	= 0x00000100,
734	.init_machine	= dns323_init,
735	.map_io		= orion5x_map_io,
736	.init_early	= orion5x_init_early,
737	.init_irq	= orion5x_init_irq,
738	.timer		= &orion5x_timer,
739	.fixup		= tag_fixup_mem32,
740MACHINE_END