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 <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_warn("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_warn("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_warn("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 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET, 615 ORION_MBUS_DEVBUS_BOOT_ATTR, 616 DNS323_NOR_BOOT_BASE, 617 DNS323_NOR_BOOT_SIZE); 618 platform_device_register(&dns323_nor_flash); 619 620 /* Sort out LEDs, Buttons and i2c devices */ 621 switch(system_rev) { 622 case DNS323_REV_A1: 623 /* The 5181 power LED is active low and requires 624 * DNS323_GPIO_LED_POWER1 to also be low. 625 */ 626 dns323ab_leds[0].active_low = 1; 627 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable"); 628 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0); 629 /* Fall through */ 630 case DNS323_REV_B1: 631 i2c_register_board_info(0, dns323ab_i2c_devices, 632 ARRAY_SIZE(dns323ab_i2c_devices)); 633 break; 634 case DNS323_REV_C1: 635 /* Hookup LEDs & Buttons */ 636 dns323_gpio_leds.dev.platform_data = &dns323c_led_data; 637 dns323_button_device.dev.platform_data = &dns323c_button_data; 638 639 /* Hookup i2c devices and fan driver */ 640 i2c_register_board_info(0, dns323c_i2c_devices, 641 ARRAY_SIZE(dns323c_i2c_devices)); 642 platform_device_register_simple("dns323c-fan", 0, NULL, 0); 643 644 /* Register fixup for the PHY LEDs */ 645 if (!IS_BUILTIN(CONFIG_PHYLIB)) 646 break; 647 phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118, 648 MARVELL_PHY_ID_MASK, 649 dns323c_phy_fixup); 650 } 651 652 platform_device_register(&dns323_gpio_leds); 653 platform_device_register(&dns323_button_device); 654 655 /* 656 * Configure peripherals. 657 */ 658 if (dns323_read_mac_addr() < 0) 659 printk("DNS-323: Failed to read MAC address\n"); 660 orion5x_ehci0_init(); 661 orion5x_eth_init(&dns323_eth_data); 662 orion5x_i2c_init(); 663 orion5x_uart0_init(); 664 665 /* Remaining GPIOs */ 666 switch(system_rev) { 667 case DNS323_REV_A1: 668 /* Poweroff GPIO */ 669 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || 670 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) 671 pr_err("DNS-323: failed to setup power-off GPIO\n"); 672 pm_power_off = dns323a_power_off; 673 break; 674 case DNS323_REV_B1: 675 /* 5182 built-in SATA init */ 676 orion5x_sata_init(&dns323_sata_data); 677 678 /* The DNS323 rev B1 has flag to indicate the system is up. 679 * Without this flag set, power LED will flash and cannot be 680 * controlled via leds-gpio. 681 */ 682 if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0) 683 gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1); 684 685 /* Poweroff GPIO */ 686 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || 687 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) 688 pr_err("DNS-323: failed to setup power-off GPIO\n"); 689 pm_power_off = dns323b_power_off; 690 break; 691 case DNS323_REV_C1: 692 /* 5182 built-in SATA init */ 693 orion5x_sata_init(&dns323_sata_data); 694 695 /* Poweroff GPIO */ 696 if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 || 697 gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0) 698 pr_err("DNS-323: failed to setup power-off GPIO\n"); 699 pm_power_off = dns323c_power_off; 700 701 /* Now, -this- should theorically be done by the sata_mv driver 702 * once I figure out what's going on there. Maybe the behaviour 703 * of the LEDs should be somewhat passed via the platform_data. 704 * for now, just whack the register and make the LEDs happy 705 * 706 * Note: AFAIK, rev B1 needs the same treatement but I'll let 707 * somebody else test it. 708 */ 709 writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c); 710 break; 711 } 712 } 713 714 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */ 715 MACHINE_START(DNS323, "D-Link DNS-323") 716 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ 717 .atag_offset = 0x100, 718 .init_machine = dns323_init, 719 .map_io = orion5x_map_io, 720 .init_early = orion5x_init_early, 721 .init_irq = orion5x_init_irq, 722 .init_time = orion5x_timer_init, 723 .fixup = tag_fixup_mem32, 724 .restart = orion5x_restart, 725 MACHINE_END 726