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#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 <plat/orion-gpio.h> 37#include "orion5x.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 */ 63enum { 64 DNS323_REV_A1, /* 0 */ 65 DNS323_REV_B1, /* 1 */ 66 DNS323_REV_C1, /* 2 */ 67}; 68 69 70/**************************************************************************** 71 * PCI setup 72 */ 73 74static 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 88static 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 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: %pM\n", addr); 240 241 memcpy(dns323_eth_data.mac_addr, addr, 6); 242 243 return 0; 244 245error_fail: 246 iounmap(mac_page); 247 return -EINVAL; 248} 249 250/**************************************************************************** 251 * GPIO LEDs (simple - doesn't use hardware blinking support) 252 */ 253 254static struct gpio_led dns323ab_leds[] = { 255 { 256 .name = "power:blue", 257 .gpio = DNS323_GPIO_LED_POWER2, 258 .default_trigger = "default-on", 259 }, { 260 .name = "right:amber", 261 .gpio = DNS323_GPIO_LED_RIGHT_AMBER, 262 .active_low = 1, 263 }, { 264 .name = "left:amber", 265 .gpio = DNS323_GPIO_LED_LEFT_AMBER, 266 .active_low = 1, 267 }, 268}; 269 270 271static struct gpio_led dns323c_leds[] = { 272 { 273 .name = "power:blue", 274 .gpio = DNS323C_GPIO_LED_POWER, 275 .default_trigger = "timer", 276 .active_low = 1, 277 }, { 278 .name = "right:amber", 279 .gpio = DNS323C_GPIO_LED_RIGHT_AMBER, 280 .active_low = 1, 281 }, { 282 .name = "left:amber", 283 .gpio = DNS323C_GPIO_LED_LEFT_AMBER, 284 .active_low = 1, 285 }, 286}; 287 288 289static struct gpio_led_platform_data dns323ab_led_data = { 290 .num_leds = ARRAY_SIZE(dns323ab_leds), 291 .leds = dns323ab_leds, 292 .gpio_blink_set = orion_gpio_led_blink_set, 293}; 294 295static struct gpio_led_platform_data dns323c_led_data = { 296 .num_leds = ARRAY_SIZE(dns323c_leds), 297 .leds = dns323c_leds, 298 .gpio_blink_set = orion_gpio_led_blink_set, 299}; 300 301static struct platform_device dns323_gpio_leds = { 302 .name = "leds-gpio", 303 .id = -1, 304 .dev = { 305 .platform_data = &dns323ab_led_data, 306 }, 307}; 308 309/**************************************************************************** 310 * GPIO Attached Keys 311 */ 312 313static struct gpio_keys_button dns323ab_buttons[] = { 314 { 315 .code = KEY_RESTART, 316 .gpio = DNS323_GPIO_KEY_RESET, 317 .desc = "Reset Button", 318 .active_low = 1, 319 }, { 320 .code = KEY_POWER, 321 .gpio = DNS323_GPIO_KEY_POWER, 322 .desc = "Power Button", 323 .active_low = 1, 324 }, 325}; 326 327static struct gpio_keys_platform_data dns323ab_button_data = { 328 .buttons = dns323ab_buttons, 329 .nbuttons = ARRAY_SIZE(dns323ab_buttons), 330}; 331 332static struct gpio_keys_button dns323c_buttons[] = { 333 { 334 .code = KEY_POWER, 335 .gpio = DNS323C_GPIO_KEY_POWER, 336 .desc = "Power Button", 337 .active_low = 1, 338 }, 339}; 340 341static struct gpio_keys_platform_data dns323c_button_data = { 342 .buttons = dns323c_buttons, 343 .nbuttons = ARRAY_SIZE(dns323c_buttons), 344}; 345 346static struct platform_device dns323_button_device = { 347 .name = "gpio-keys", 348 .id = -1, 349 .num_resources = 0, 350 .dev = { 351 .platform_data = &dns323ab_button_data, 352 }, 353}; 354 355/***************************************************************************** 356 * SATA 357 */ 358static struct mv_sata_platform_data dns323_sata_data = { 359 .n_ports = 2, 360}; 361 362/**************************************************************************** 363 * General Setup 364 */ 365static unsigned int dns323a_mpp_modes[] __initdata = { 366 MPP0_PCIE_RST_OUTn, 367 MPP1_GPIO, /* right amber LED (sata ch0) */ 368 MPP2_GPIO, /* left amber LED (sata ch1) */ 369 MPP3_UNUSED, 370 MPP4_GPIO, /* power button LED */ 371 MPP5_GPIO, /* power button LED */ 372 MPP6_GPIO, /* GMT G751-2f overtemp */ 373 MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */ 374 MPP8_GPIO, /* triggers power off */ 375 MPP9_GPIO, /* power button switch */ 376 MPP10_GPIO, /* reset button switch */ 377 MPP11_UNUSED, 378 MPP12_UNUSED, 379 MPP13_UNUSED, 380 MPP14_UNUSED, 381 MPP15_UNUSED, 382 MPP16_UNUSED, 383 MPP17_UNUSED, 384 MPP18_UNUSED, 385 MPP19_UNUSED, 386 0, 387}; 388 389static unsigned int dns323b_mpp_modes[] __initdata = { 390 MPP0_UNUSED, 391 MPP1_GPIO, /* right amber LED (sata ch0) */ 392 MPP2_GPIO, /* left amber LED (sata ch1) */ 393 MPP3_GPIO, /* system up flag */ 394 MPP4_GPIO, /* power button LED */ 395 MPP5_GPIO, /* power button LED */ 396 MPP6_GPIO, /* GMT G751-2f overtemp */ 397 MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */ 398 MPP8_GPIO, /* triggers power off */ 399 MPP9_GPIO, /* power button switch */ 400 MPP10_GPIO, /* reset button switch */ 401 MPP11_UNUSED, 402 MPP12_SATA_LED, 403 MPP13_SATA_LED, 404 MPP14_SATA_LED, 405 MPP15_SATA_LED, 406 MPP16_UNUSED, 407 MPP17_UNUSED, 408 MPP18_UNUSED, 409 MPP19_UNUSED, 410 0, 411}; 412 413static unsigned int dns323c_mpp_modes[] __initdata = { 414 MPP0_GPIO, /* ? input */ 415 MPP1_GPIO, /* input power switch (0 = pressed) */ 416 MPP2_GPIO, /* output power off */ 417 MPP3_UNUSED, /* ? output */ 418 MPP4_UNUSED, /* ? output */ 419 MPP5_UNUSED, /* ? output */ 420 MPP6_UNUSED, /* ? output */ 421 MPP7_UNUSED, /* ? output */ 422 MPP8_GPIO, /* i/o right amber LED */ 423 MPP9_GPIO, /* i/o left amber LED */ 424 MPP10_GPIO, /* input */ 425 MPP11_UNUSED, 426 MPP12_SATA_LED, 427 MPP13_SATA_LED, 428 MPP14_SATA_LED, 429 MPP15_SATA_LED, 430 MPP16_UNUSED, 431 MPP17_GPIO, /* power button LED */ 432 MPP18_GPIO, /* fan speed bit 0 */ 433 MPP19_GPIO, /* fan speed bit 1 */ 434 0, 435}; 436 437/* Rev C1 Fan speed notes: 438 * 439 * The fan is controlled by 2 GPIOs on this board. The settings 440 * of the bits is as follow: 441 * 442 * GPIO 18 GPIO 19 Fan 443 * 444 * 0 0 stopped 445 * 0 1 low speed 446 * 1 0 high speed 447 * 1 1 don't do that (*) 448 * 449 * (*) I think the two bits control two feed-in resistors into a fixed 450 * PWN circuit, setting both bits will basically go a 'bit' faster 451 * than high speed, but d-link doesn't do it and you may get out of 452 * HW spec so don't do it. 453 */ 454 455/* 456 * On the DNS-323 A1 and B1 the following devices are attached via I2C: 457 * 458 * i2c addr | chip | description 459 * 0x3e | GMT G760Af | fan speed PWM controller 460 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) 461 * 0x68 | ST M41T80 | RTC w/ alarm 462 */ 463static struct i2c_board_info __initdata dns323ab_i2c_devices[] = { 464 { 465 I2C_BOARD_INFO("g760a", 0x3e), 466 }, { 467 I2C_BOARD_INFO("lm75", 0x48), 468 }, { 469 I2C_BOARD_INFO("m41t80", 0x68), 470 }, 471}; 472 473/* 474 * On the DNS-323 C1 the following devices are attached via I2C: 475 * 476 * i2c addr | chip | description 477 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) 478 * 0x68 | ST M41T80 | RTC w/ alarm 479 */ 480static struct i2c_board_info __initdata dns323c_i2c_devices[] = { 481 { 482 I2C_BOARD_INFO("lm75", 0x48), 483 }, { 484 I2C_BOARD_INFO("m41t80", 0x68), 485 }, 486}; 487 488/* DNS-323 rev. A specific power off method */ 489static void dns323a_power_off(void) 490{ 491 pr_info("DNS-323: Triggering power-off...\n"); 492 gpio_set_value(DNS323_GPIO_POWER_OFF, 1); 493} 494 495/* DNS-323 rev B specific power off method */ 496static void dns323b_power_off(void) 497{ 498 pr_info("DNS-323: Triggering power-off...\n"); 499 /* Pin has to be changed to 1 and back to 0 to do actual power off. */ 500 gpio_set_value(DNS323_GPIO_POWER_OFF, 1); 501 mdelay(100); 502 gpio_set_value(DNS323_GPIO_POWER_OFF, 0); 503} 504 505/* DNS-323 rev. C specific power off method */ 506static void dns323c_power_off(void) 507{ 508 pr_info("DNS-323: Triggering power-off...\n"); 509 gpio_set_value(DNS323C_GPIO_POWER_OFF, 1); 510} 511 512static int dns323c_phy_fixup(struct phy_device *phy) 513{ 514 phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS; 515 516 return 0; 517} 518 519static int __init dns323_identify_rev(void) 520{ 521 u32 dev, rev, i, reg; 522 523 pr_debug("DNS-323: Identifying board ... \n"); 524 525 /* Rev A1 has a 5181 */ 526 orion5x_pcie_id(&dev, &rev); 527 if (dev == MV88F5181_DEV_ID) { 528 pr_debug("DNS-323: 5181 found, board is A1\n"); 529 return DNS323_REV_A1; 530 } 531 pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n"); 532 533 /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is 534 * a bit gross but we want to do that without links into the eth 535 * driver so let's poke at it directly. We default to rev B1 in 536 * case the accesses fail 537 */ 538 539#define ETH_SMI_REG (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004) 540#define SMI_BUSY 0x10000000 541#define SMI_READ_VALID 0x08000000 542#define SMI_OPCODE_READ 0x04000000 543#define SMI_OPCODE_WRITE 0x00000000 544 545 for (i = 0; i < 1000; i++) { 546 reg = readl(ETH_SMI_REG); 547 if (!(reg & SMI_BUSY)) 548 break; 549 } 550 if (i >= 1000) { 551 pr_warn("DNS-323: Timeout accessing PHY, assuming rev B1\n"); 552 return DNS323_REV_B1; 553 } 554 writel((3 << 21) /* phy ID reg */ | 555 (8 << 16) /* phy addr */ | 556 SMI_OPCODE_READ, ETH_SMI_REG); 557 for (i = 0; i < 1000; i++) { 558 reg = readl(ETH_SMI_REG); 559 if (reg & SMI_READ_VALID) 560 break; 561 } 562 if (i >= 1000) { 563 pr_warn("DNS-323: Timeout reading PHY, assuming rev B1\n"); 564 return DNS323_REV_B1; 565 } 566 pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff); 567 568 /* Note: the Marvell tools mask the ID with 0x3f0 before comparison 569 * but I don't see that making a difference here, at least with 570 * any known Marvell PHY ID 571 */ 572 switch(reg & 0xfff0) { 573 case 0x0cc0: /* MV88E1111 */ 574 return DNS323_REV_B1; 575 case 0x0e10: /* MV88E1118 */ 576 return DNS323_REV_C1; 577 default: 578 pr_warn("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n", 579 reg & 0xffff); 580 } 581 return DNS323_REV_B1; 582} 583 584static void __init dns323_init(void) 585{ 586 /* Setup basic Orion functions. Need to be called early. */ 587 orion5x_init(); 588 589 /* Identify revision */ 590 system_rev = dns323_identify_rev(); 591 pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev); 592 593 /* Just to be tricky, the 5182 has a completely different 594 * set of MPP modes to the 5181. 595 */ 596 switch(system_rev) { 597 case DNS323_REV_A1: 598 orion5x_mpp_conf(dns323a_mpp_modes); 599 writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */ 600 break; 601 case DNS323_REV_B1: 602 orion5x_mpp_conf(dns323b_mpp_modes); 603 break; 604 case DNS323_REV_C1: 605 orion5x_mpp_conf(dns323c_mpp_modes); 606 break; 607 } 608 609 /* setup flash mapping 610 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 611 */ 612 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET, 613 ORION_MBUS_DEVBUS_BOOT_ATTR, 614 DNS323_NOR_BOOT_BASE, 615 DNS323_NOR_BOOT_SIZE); 616 platform_device_register(&dns323_nor_flash); 617 618 /* Sort out LEDs, Buttons and i2c devices */ 619 switch(system_rev) { 620 case DNS323_REV_A1: 621 /* The 5181 power LED is active low and requires 622 * DNS323_GPIO_LED_POWER1 to also be low. 623 */ 624 dns323ab_leds[0].active_low = 1; 625 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable"); 626 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0); 627 fallthrough; 628 case DNS323_REV_B1: 629 i2c_register_board_info(0, dns323ab_i2c_devices, 630 ARRAY_SIZE(dns323ab_i2c_devices)); 631 break; 632 case DNS323_REV_C1: 633 /* Hookup LEDs & Buttons */ 634 dns323_gpio_leds.dev.platform_data = &dns323c_led_data; 635 dns323_button_device.dev.platform_data = &dns323c_button_data; 636 637 /* Hookup i2c devices and fan driver */ 638 i2c_register_board_info(0, dns323c_i2c_devices, 639 ARRAY_SIZE(dns323c_i2c_devices)); 640 platform_device_register_simple("dns323c-fan", 0, NULL, 0); 641 642 /* Register fixup for the PHY LEDs */ 643 if (!IS_BUILTIN(CONFIG_PHYLIB)) 644 break; 645 phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118, 646 MARVELL_PHY_ID_MASK, 647 dns323c_phy_fixup); 648 } 649 650 platform_device_register(&dns323_gpio_leds); 651 platform_device_register(&dns323_button_device); 652 653 /* 654 * Configure peripherals. 655 */ 656 if (dns323_read_mac_addr() < 0) 657 printk("DNS-323: Failed to read MAC address\n"); 658 orion5x_ehci0_init(); 659 orion5x_eth_init(&dns323_eth_data); 660 orion5x_i2c_init(); 661 orion5x_uart0_init(); 662 663 /* Remaining GPIOs */ 664 switch(system_rev) { 665 case DNS323_REV_A1: 666 /* Poweroff GPIO */ 667 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || 668 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) 669 pr_err("DNS-323: failed to setup power-off GPIO\n"); 670 pm_power_off = dns323a_power_off; 671 break; 672 case DNS323_REV_B1: 673 /* 5182 built-in SATA init */ 674 orion5x_sata_init(&dns323_sata_data); 675 676 /* The DNS323 rev B1 has flag to indicate the system is up. 677 * Without this flag set, power LED will flash and cannot be 678 * controlled via leds-gpio. 679 */ 680 if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0) 681 gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1); 682 683 /* Poweroff GPIO */ 684 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || 685 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) 686 pr_err("DNS-323: failed to setup power-off GPIO\n"); 687 pm_power_off = dns323b_power_off; 688 break; 689 case DNS323_REV_C1: 690 /* 5182 built-in SATA init */ 691 orion5x_sata_init(&dns323_sata_data); 692 693 /* Poweroff GPIO */ 694 if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 || 695 gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0) 696 pr_err("DNS-323: failed to setup power-off GPIO\n"); 697 pm_power_off = dns323c_power_off; 698 699 /* Now, -this- should theoretically be done by the sata_mv driver 700 * once I figure out what's going on there. Maybe the behaviour 701 * of the LEDs should be somewhat passed via the platform_data. 702 * for now, just whack the register and make the LEDs happy 703 * 704 * Note: AFAIK, rev B1 needs the same treatment but I'll let 705 * somebody else test it. 706 */ 707 writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c); 708 break; 709 } 710} 711 712/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */ 713MACHINE_START(DNS323, "D-Link DNS-323") 714 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ 715 .atag_offset = 0x100, 716 .nr_irqs = ORION5X_NR_IRQS, 717 .init_machine = dns323_init, 718 .map_io = orion5x_map_io, 719 .init_early = orion5x_init_early, 720 .init_irq = orion5x_init_irq, 721 .init_time = orion5x_timer_init, 722 .fixup = tag_fixup_mem32, 723 .restart = orion5x_restart, 724MACHINE_END 725