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dns323-setup.c
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1 /*
2  * arch/arm/mach-orion5x/dns323-setup.c
3  *
4  * Copyright (C) 2007 Herbert Valerio Riedel <[email protected]>
5  *
6  * Support for HW Rev C1:
7  *
8  * Copyright (C) 2010 Benjamin Herrenschmidt <[email protected]>
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 #include <linux/gpio.h>
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/mach/arch.h>
34 #include <asm/mach/pci.h>
35 #include <asm/system_info.h>
36 #include <mach/orion5x.h>
37 #include <plat/orion-gpio.h>
38 #include "common.h"
39 #include "mpp.h"
40 
41 /* Rev A1 and B1 */
42 #define DNS323_GPIO_LED_RIGHT_AMBER 1
43 #define DNS323_GPIO_LED_LEFT_AMBER 2
44 #define DNS323_GPIO_SYSTEM_UP 3
45 #define DNS323_GPIO_LED_POWER1 4
46 #define DNS323_GPIO_LED_POWER2 5
47 #define DNS323_GPIO_OVERTEMP 6
48 #define DNS323_GPIO_RTC 7
49 #define DNS323_GPIO_POWER_OFF 8
50 #define DNS323_GPIO_KEY_POWER 9
51 #define DNS323_GPIO_KEY_RESET 10
52 
53 /* Rev C1 */
54 #define DNS323C_GPIO_KEY_POWER 1
55 #define DNS323C_GPIO_POWER_OFF 2
56 #define DNS323C_GPIO_LED_RIGHT_AMBER 8
57 #define DNS323C_GPIO_LED_LEFT_AMBER 9
58 #define DNS323C_GPIO_LED_POWER 17
59 #define DNS323C_GPIO_FAN_BIT1 18
60 #define DNS323C_GPIO_FAN_BIT0 19
61 
62 /* Exposed to userspace, do not change */
63 enum {
64  DNS323_REV_A1, /* 0 */
65  DNS323_REV_B1, /* 1 */
66  DNS323_REV_C1, /* 2 */
67 };
68 
69 
70 /****************************************************************************
71  * PCI setup
72  */
73 
74 static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
75 {
76  int irq;
77 
78  /*
79  * Check for devices with hard-wired IRQs.
80  */
81  irq = orion5x_pci_map_irq(dev, slot, pin);
82  if (irq != -1)
83  return irq;
84 
85  return -1;
86 }
87 
88 static struct hw_pci dns323_pci __initdata = {
89  .nr_controllers = 2,
90  .setup = orion5x_pci_sys_setup,
91  .scan = orion5x_pci_sys_scan_bus,
92  .map_irq = dns323_pci_map_irq,
93 };
94 
95 static 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 
106 subsys_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 
122 static 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 
146 static struct physmap_flash_data dns323_nor_flash_data = {
147  .width = 1,
148  .parts = dns323_partitions,
149  .nr_parts = ARRAY_SIZE(dns323_partitions)
150 };
151 
152 static 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 
158 static 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 
172 static 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  */
179 static 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 
193 static 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 
207 static 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 
247 error_fail:
248  iounmap(mac_page);
249  return -EINVAL;
250 }
251 
252 /****************************************************************************
253  * GPIO LEDs (simple - doesn't use hardware blinking support)
254  */
255 
256 static struct gpio_led dns323ab_leds[] = {
257  {
258  .name = "power:blue",
259  .gpio = DNS323_GPIO_LED_POWER2,
260  .default_trigger = "default-on",
261  }, {
262  .name = "right:amber",
263  .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
264  .active_low = 1,
265  }, {
266  .name = "left:amber",
267  .gpio = DNS323_GPIO_LED_LEFT_AMBER,
268  .active_low = 1,
269  },
270 };
271 
272 
273 static struct gpio_led dns323c_leds[] = {
274  {
275  .name = "power:blue",
276  .gpio = DNS323C_GPIO_LED_POWER,
277  .default_trigger = "timer",
278  .active_low = 1,
279  }, {
280  .name = "right:amber",
281  .gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
282  .active_low = 1,
283  }, {
284  .name = "left:amber",
285  .gpio = DNS323C_GPIO_LED_LEFT_AMBER,
286  .active_low = 1,
287  },
288 };
289 
290 
291 static struct gpio_led_platform_data dns323ab_led_data = {
292  .num_leds = ARRAY_SIZE(dns323ab_leds),
293  .leds = dns323ab_leds,
294  .gpio_blink_set = orion_gpio_led_blink_set,
295 };
296 
297 static struct gpio_led_platform_data dns323c_led_data = {
298  .num_leds = ARRAY_SIZE(dns323c_leds),
299  .leds = dns323c_leds,
300  .gpio_blink_set = orion_gpio_led_blink_set,
301 };
302 
303 static struct platform_device dns323_gpio_leds = {
304  .name = "leds-gpio",
305  .id = -1,
306  .dev = {
307  .platform_data = &dns323ab_led_data,
308  },
309 };
310 
311 /****************************************************************************
312  * GPIO Attached Keys
313  */
314 
315 static struct gpio_keys_button dns323ab_buttons[] = {
316  {
317  .code = KEY_RESTART,
318  .gpio = DNS323_GPIO_KEY_RESET,
319  .desc = "Reset Button",
320  .active_low = 1,
321  }, {
322  .code = KEY_POWER,
323  .gpio = DNS323_GPIO_KEY_POWER,
324  .desc = "Power Button",
325  .active_low = 1,
326  },
327 };
328 
329 static struct gpio_keys_platform_data dns323ab_button_data = {
330  .buttons = dns323ab_buttons,
331  .nbuttons = ARRAY_SIZE(dns323ab_buttons),
332 };
333 
334 static struct gpio_keys_button dns323c_buttons[] = {
335  {
336  .code = KEY_POWER,
337  .gpio = DNS323C_GPIO_KEY_POWER,
338  .desc = "Power Button",
339  .active_low = 1,
340  },
341 };
342 
343 static struct gpio_keys_platform_data dns323c_button_data = {
344  .buttons = dns323c_buttons,
345  .nbuttons = ARRAY_SIZE(dns323c_buttons),
346 };
347 
348 static struct platform_device dns323_button_device = {
349  .name = "gpio-keys",
350  .id = -1,
351  .num_resources = 0,
352  .dev = {
353  .platform_data = &dns323ab_button_data,
354  },
355 };
356 
357 /*****************************************************************************
358  * SATA
359  */
360 static struct mv_sata_platform_data dns323_sata_data = {
361  .n_ports = 2,
362 };
363 
364 /****************************************************************************
365  * General Setup
366  */
367 static unsigned int dns323a_mpp_modes[] __initdata = {
368  MPP0_PCIE_RST_OUTn,
369  MPP1_GPIO, /* right amber LED (sata ch0) */
370  MPP2_GPIO, /* left amber LED (sata ch1) */
371  MPP3_UNUSED,
372  MPP4_GPIO, /* power button LED */
373  MPP5_GPIO, /* power button LED */
374  MPP6_GPIO, /* GMT G751-2f overtemp */
375  MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */
376  MPP8_GPIO, /* triggers power off */
377  MPP9_GPIO, /* power button switch */
378  MPP10_GPIO, /* reset button switch */
379  MPP11_UNUSED,
380  MPP12_UNUSED,
381  MPP13_UNUSED,
382  MPP14_UNUSED,
383  MPP15_UNUSED,
384  MPP16_UNUSED,
385  MPP17_UNUSED,
386  MPP18_UNUSED,
387  MPP19_UNUSED,
388  0,
389 };
390 
391 static unsigned int dns323b_mpp_modes[] __initdata = {
392  MPP0_UNUSED,
393  MPP1_GPIO, /* right amber LED (sata ch0) */
394  MPP2_GPIO, /* left amber LED (sata ch1) */
395  MPP3_GPIO, /* system up flag */
396  MPP4_GPIO, /* power button LED */
397  MPP5_GPIO, /* power button LED */
398  MPP6_GPIO, /* GMT G751-2f overtemp */
399  MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */
400  MPP8_GPIO, /* triggers power off */
401  MPP9_GPIO, /* power button switch */
402  MPP10_GPIO, /* reset button switch */
403  MPP11_UNUSED,
404  MPP12_SATA_LED,
405  MPP13_SATA_LED,
406  MPP14_SATA_LED,
407  MPP15_SATA_LED,
408  MPP16_UNUSED,
409  MPP17_UNUSED,
410  MPP18_UNUSED,
411  MPP19_UNUSED,
412  0,
413 };
414 
415 static unsigned int dns323c_mpp_modes[] __initdata = {
416  MPP0_GPIO, /* ? input */
417  MPP1_GPIO, /* input power switch (0 = pressed) */
418  MPP2_GPIO, /* output power off */
419  MPP3_UNUSED, /* ? output */
420  MPP4_UNUSED, /* ? output */
421  MPP5_UNUSED, /* ? output */
422  MPP6_UNUSED, /* ? output */
423  MPP7_UNUSED, /* ? output */
424  MPP8_GPIO, /* i/o right amber LED */
425  MPP9_GPIO, /* i/o left amber LED */
426  MPP10_GPIO, /* input */
427  MPP11_UNUSED,
428  MPP12_SATA_LED,
429  MPP13_SATA_LED,
430  MPP14_SATA_LED,
431  MPP15_SATA_LED,
432  MPP16_UNUSED,
433  MPP17_GPIO, /* power button LED */
434  MPP18_GPIO, /* fan speed bit 0 */
435  MPP19_GPIO, /* fan speed bit 1 */
436  0,
437 };
438 
439 /* Rev C1 Fan speed notes:
440  *
441  * The fan is controlled by 2 GPIOs on this board. The settings
442  * of the bits is as follow:
443  *
444  * GPIO 18 GPIO 19 Fan
445  *
446  * 0 0 stopped
447  * 0 1 low speed
448  * 1 0 high speed
449  * 1 1 don't do that (*)
450  *
451  * (*) I think the two bits control two feed-in resistors into a fixed
452  * PWN circuit, setting both bits will basically go a 'bit' faster
453  * than high speed, but d-link doesn't do it and you may get out of
454  * HW spec so don't do it.
455  */
456 
457 /*
458  * On the DNS-323 A1 and B1 the following devices are attached via I2C:
459  *
460  * i2c addr | chip | description
461  * 0x3e | GMT G760Af | fan speed PWM controller
462  * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
463  * 0x68 | ST M41T80 | RTC w/ alarm
464  */
465 static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
466  {
467  I2C_BOARD_INFO("g760a", 0x3e),
468  }, {
469  I2C_BOARD_INFO("lm75", 0x48),
470  }, {
471  I2C_BOARD_INFO("m41t80", 0x68),
472  },
473 };
474 
475 /*
476  * On the DNS-323 C1 the following devices are attached via I2C:
477  *
478  * i2c addr | chip | description
479  * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
480  * 0x68 | ST M41T80 | RTC w/ alarm
481  */
482 static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
483  {
484  I2C_BOARD_INFO("lm75", 0x48),
485  }, {
486  I2C_BOARD_INFO("m41t80", 0x68),
487  },
488 };
489 
490 /* DNS-323 rev. A specific power off method */
491 static void dns323a_power_off(void)
492 {
493  pr_info("DNS-323: Triggering power-off...\n");
494  gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
495 }
496 
497 /* DNS-323 rev B specific power off method */
498 static void dns323b_power_off(void)
499 {
500  pr_info("DNS-323: Triggering power-off...\n");
501  /* Pin has to be changed to 1 and back to 0 to do actual power off. */
502  gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
503  mdelay(100);
504  gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
505 }
506 
507 /* DNS-323 rev. C specific power off method */
508 static void dns323c_power_off(void)
509 {
510  pr_info("DNS-323: Triggering power-off...\n");
511  gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
512 }
513 
514 static int dns323c_phy_fixup(struct phy_device *phy)
515 {
516  phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;
517 
518  return 0;
519 }
520 
521 static int __init dns323_identify_rev(void)
522 {
523  u32 dev, rev, i, reg;
524 
525  pr_debug("DNS-323: Identifying board ... \n");
526 
527  /* Rev A1 has a 5181 */
528  orion5x_pcie_id(&dev, &rev);
529  if (dev == MV88F5181_DEV_ID) {
530  pr_debug("DNS-323: 5181 found, board is A1\n");
531  return DNS323_REV_A1;
532  }
533  pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");
534 
535  /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
536  * a bit gross but we want to do that without links into the eth
537  * driver so let's poke at it directly. We default to rev B1 in
538  * case the accesses fail
539  */
540 
541 #define ETH_SMI_REG (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
542 #define SMI_BUSY 0x10000000
543 #define SMI_READ_VALID 0x08000000
544 #define SMI_OPCODE_READ 0x04000000
545 #define SMI_OPCODE_WRITE 0x00000000
546 
547  for (i = 0; i < 1000; i++) {
548  reg = readl(ETH_SMI_REG);
549  if (!(reg & SMI_BUSY))
550  break;
551  }
552  if (i >= 1000) {
553  pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n");
554  return DNS323_REV_B1;
555  }
556  writel((3 << 21) /* phy ID reg */ |
557  (8 << 16) /* phy addr */ |
558  SMI_OPCODE_READ, ETH_SMI_REG);
559  for (i = 0; i < 1000; i++) {
560  reg = readl(ETH_SMI_REG);
561  if (reg & SMI_READ_VALID)
562  break;
563  }
564  if (i >= 1000) {
565  pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n");
566  return DNS323_REV_B1;
567  }
568  pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);
569 
570  /* Note: the Marvell tools mask the ID with 0x3f0 before comparison
571  * but I don't see that making a difference here, at least with
572  * any known Marvell PHY ID
573  */
574  switch(reg & 0xfff0) {
575  case 0x0cc0: /* MV88E1111 */
576  return DNS323_REV_B1;
577  case 0x0e10: /* MV88E1118 */
578  return DNS323_REV_C1;
579  default:
580  pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
581  reg & 0xffff);
582  }
583  return DNS323_REV_B1;
584 }
585 
586 static void __init dns323_init(void)
587 {
588  /* Setup basic Orion functions. Need to be called early. */
589  orion5x_init();
590 
591  /* Identify revision */
592  system_rev = dns323_identify_rev();
593  pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);
594 
595  /* Just to be tricky, the 5182 has a completely different
596  * set of MPP modes to the 5181.
597  */
598  switch(system_rev) {
599  case DNS323_REV_A1:
600  orion5x_mpp_conf(dns323a_mpp_modes);
601  writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
602  break;
603  case DNS323_REV_B1:
604  orion5x_mpp_conf(dns323b_mpp_modes);
605  break;
606  case DNS323_REV_C1:
607  orion5x_mpp_conf(dns323c_mpp_modes);
608  break;
609  }
610 
611  /* setup flash mapping
612  * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
613  */
614  orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
615  platform_device_register(&dns323_nor_flash);
616 
617  /* Sort out LEDs, Buttons and i2c devices */
618  switch(system_rev) {
619  case DNS323_REV_A1:
620  /* The 5181 power LED is active low and requires
621  * DNS323_GPIO_LED_POWER1 to also be low.
622  */
623  dns323ab_leds[0].active_low = 1;
624  gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
625  gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
626  /* Fall through */
627  case DNS323_REV_B1:
628  i2c_register_board_info(0, dns323ab_i2c_devices,
629  ARRAY_SIZE(dns323ab_i2c_devices));
630  break;
631  case DNS323_REV_C1:
632  /* Hookup LEDs & Buttons */
633  dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
634  dns323_button_device.dev.platform_data = &dns323c_button_data;
635 
636  /* Hookup i2c devices and fan driver */
637  i2c_register_board_info(0, dns323c_i2c_devices,
638  ARRAY_SIZE(dns323c_i2c_devices));
639  platform_device_register_simple("dns323c-fan", 0, NULL, 0);
640 
641  /* Register fixup for the PHY LEDs */
642  phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
643  MARVELL_PHY_ID_MASK,
644  dns323c_phy_fixup);
645  }
646 
647  platform_device_register(&dns323_gpio_leds);
648  platform_device_register(&dns323_button_device);
649 
650  /*
651  * Configure peripherals.
652  */
653  if (dns323_read_mac_addr() < 0)
654  printk("DNS-323: Failed to read MAC address\n");
655  orion5x_ehci0_init();
656  orion5x_eth_init(&dns323_eth_data);
657  orion5x_i2c_init();
658  orion5x_uart0_init();
659 
660  /* Remaining GPIOs */
661  switch(system_rev) {
662  case DNS323_REV_A1:
663  /* Poweroff GPIO */
664  if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
665  gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
666  pr_err("DNS-323: failed to setup power-off GPIO\n");
667  pm_power_off = dns323a_power_off;
668  break;
669  case DNS323_REV_B1:
670  /* 5182 built-in SATA init */
671  orion5x_sata_init(&dns323_sata_data);
672 
673  /* The DNS323 rev B1 has flag to indicate the system is up.
674  * Without this flag set, power LED will flash and cannot be
675  * controlled via leds-gpio.
676  */
677  if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
678  gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);
679 
680  /* Poweroff GPIO */
681  if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
682  gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
683  pr_err("DNS-323: failed to setup power-off GPIO\n");
684  pm_power_off = dns323b_power_off;
685  break;
686  case DNS323_REV_C1:
687  /* 5182 built-in SATA init */
688  orion5x_sata_init(&dns323_sata_data);
689 
690  /* Poweroff GPIO */
691  if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
692  gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
693  pr_err("DNS-323: failed to setup power-off GPIO\n");
694  pm_power_off = dns323c_power_off;
695 
696  /* Now, -this- should theorically be done by the sata_mv driver
697  * once I figure out what's going on there. Maybe the behaviour
698  * of the LEDs should be somewhat passed via the platform_data.
699  * for now, just whack the register and make the LEDs happy
700  *
701  * Note: AFAIK, rev B1 needs the same treatement but I'll let
702  * somebody else test it.
703  */
704  writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c);
705  break;
706  }
707 }
708 
709 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
710 MACHINE_START(DNS323, "D-Link DNS-323")
711  /* Maintainer: Herbert Valerio Riedel <[email protected]> */
712  .atag_offset = 0x100,
713  .init_machine = dns323_init,
714  .map_io = orion5x_map_io,
715  .init_early = orion5x_init_early,
716  .init_irq = orion5x_init_irq,
717  .timer = &orion5x_timer,
718  .fixup = tag_fixup_mem32,
719  .restart = orion5x_restart,
720 MACHINE_END
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