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 <mach/orion5x.h> 36 #include "common.h" 37 #include "mpp.h" 38 39 /* Rev A1 and B1 */ 40 #define DNS323_GPIO_LED_RIGHT_AMBER 1 41 #define DNS323_GPIO_LED_LEFT_AMBER 2 42 #define DNS323_GPIO_SYSTEM_UP 3 43 #define DNS323_GPIO_LED_POWER1 4 44 #define DNS323_GPIO_LED_POWER2 5 45 #define DNS323_GPIO_OVERTEMP 6 46 #define DNS323_GPIO_RTC 7 47 #define DNS323_GPIO_POWER_OFF 8 48 #define DNS323_GPIO_KEY_POWER 9 49 #define DNS323_GPIO_KEY_RESET 10 50 51 /* Rev C1 */ 52 #define DNS323C_GPIO_KEY_POWER 1 53 #define DNS323C_GPIO_POWER_OFF 2 54 #define DNS323C_GPIO_LED_RIGHT_AMBER 8 55 #define DNS323C_GPIO_LED_LEFT_AMBER 9 56 #define DNS323C_GPIO_LED_POWER 17 57 #define DNS323C_GPIO_FAN_BIT1 18 58 #define DNS323C_GPIO_FAN_BIT0 19 59 60 /* Exposed to userspace, do not change */ 61 enum { 62 DNS323_REV_A1, /* 0 */ 63 DNS323_REV_B1, /* 1 */ 64 DNS323_REV_C1, /* 2 */ 65 }; 66 67 68 /**************************************************************************** 69 * PCI setup 70 */ 71 72 static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 73 { 74 int irq; 75 76 /* 77 * Check for devices with hard-wired IRQs. 78 */ 79 irq = orion5x_pci_map_irq(dev, slot, pin); 80 if (irq != -1) 81 return irq; 82 83 return -1; 84 } 85 86 static struct hw_pci dns323_pci __initdata = { 87 .nr_controllers = 2, 88 .swizzle = pci_std_swizzle, 89 .setup = orion5x_pci_sys_setup, 90 .scan = orion5x_pci_sys_scan_bus, 91 .map_irq = dns323_pci_map_irq, 92 }; 93 94 static int __init dns323_pci_init(void) 95 { 96 /* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI 97 * gets in the way of initialising the SATA controller. 98 */ 99 if (machine_is_dns323() && system_rev == DNS323_REV_A1) 100 pci_common_init(&dns323_pci); 101 102 return 0; 103 } 104 105 subsys_initcall(dns323_pci_init); 106 107 /**************************************************************************** 108 * 8MiB NOR flash (Spansion S29GL064M90TFIR4) 109 * 110 * Layout as used by D-Link: 111 * 0x00000000-0x00010000 : "MTD1" 112 * 0x00010000-0x00020000 : "MTD2" 113 * 0x00020000-0x001a0000 : "Linux Kernel" 114 * 0x001a0000-0x007d0000 : "File System" 115 * 0x007d0000-0x00800000 : "u-boot" 116 */ 117 118 #define DNS323_NOR_BOOT_BASE 0xf4000000 119 #define DNS323_NOR_BOOT_SIZE SZ_8M 120 121 static struct mtd_partition dns323_partitions[] = { 122 { 123 .name = "MTD1", 124 .size = 0x00010000, 125 .offset = 0, 126 }, { 127 .name = "MTD2", 128 .size = 0x00010000, 129 .offset = 0x00010000, 130 }, { 131 .name = "Linux Kernel", 132 .size = 0x00180000, 133 .offset = 0x00020000, 134 }, { 135 .name = "File System", 136 .size = 0x00630000, 137 .offset = 0x001A0000, 138 }, { 139 .name = "u-boot", 140 .size = 0x00030000, 141 .offset = 0x007d0000, 142 }, 143 }; 144 145 static struct physmap_flash_data dns323_nor_flash_data = { 146 .width = 1, 147 .parts = dns323_partitions, 148 .nr_parts = ARRAY_SIZE(dns323_partitions) 149 }; 150 151 static struct resource dns323_nor_flash_resource = { 152 .flags = IORESOURCE_MEM, 153 .start = DNS323_NOR_BOOT_BASE, 154 .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1, 155 }; 156 157 static struct platform_device dns323_nor_flash = { 158 .name = "physmap-flash", 159 .id = 0, 160 .dev = { 161 .platform_data = &dns323_nor_flash_data, 162 }, 163 .resource = &dns323_nor_flash_resource, 164 .num_resources = 1, 165 }; 166 167 /**************************************************************************** 168 * Ethernet 169 */ 170 171 static struct mv643xx_eth_platform_data dns323_eth_data = { 172 .phy_addr = MV643XX_ETH_PHY_ADDR(8), 173 }; 174 175 /* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these 176 * functions be kept somewhere? 177 */ 178 static int __init dns323_parse_hex_nibble(char n) 179 { 180 if (n >= '0' && n <= '9') 181 return n - '0'; 182 183 if (n >= 'A' && n <= 'F') 184 return n - 'A' + 10; 185 186 if (n >= 'a' && n <= 'f') 187 return n - 'a' + 10; 188 189 return -1; 190 } 191 192 static int __init dns323_parse_hex_byte(const char *b) 193 { 194 int hi; 195 int lo; 196 197 hi = dns323_parse_hex_nibble(b[0]); 198 lo = dns323_parse_hex_nibble(b[1]); 199 200 if (hi < 0 || lo < 0) 201 return -1; 202 203 return (hi << 4) | lo; 204 } 205 206 static int __init dns323_read_mac_addr(void) 207 { 208 u_int8_t addr[6]; 209 int i; 210 char *mac_page; 211 212 /* MAC address is stored as a regular ol' string in /dev/mtdblock4 213 * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80). 214 */ 215 mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024); 216 if (!mac_page) 217 return -ENOMEM; 218 219 /* Sanity check the string we're looking at */ 220 for (i = 0; i < 5; i++) { 221 if (*(mac_page + (i * 3) + 2) != ':') { 222 goto error_fail; 223 } 224 } 225 226 for (i = 0; i < 6; i++) { 227 int byte; 228 229 byte = dns323_parse_hex_byte(mac_page + (i * 3)); 230 if (byte < 0) { 231 goto error_fail; 232 } 233 234 addr[i] = byte; 235 } 236 237 iounmap(mac_page); 238 printk("DNS-323: Found ethernet MAC address: "); 239 for (i = 0; i < 6; i++) 240 printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n"); 241 242 memcpy(dns323_eth_data.mac_addr, addr, 6); 243 244 return 0; 245 246 error_fail: 247 iounmap(mac_page); 248 return -EINVAL; 249 } 250 251 /**************************************************************************** 252 * GPIO LEDs (simple - doesn't use hardware blinking support) 253 */ 254 255 #define ORION_BLINK_HALF_PERIOD 100 /* ms */ 256 257 static int dns323_gpio_blink_set(unsigned gpio, int state, 258 unsigned long *delay_on, unsigned long *delay_off) 259 { 260 261 if (delay_on && delay_off && !*delay_on && !*delay_off) 262 *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD; 263 264 switch(state) { 265 case GPIO_LED_NO_BLINK_LOW: 266 case GPIO_LED_NO_BLINK_HIGH: 267 orion_gpio_set_blink(gpio, 0); 268 gpio_set_value(gpio, state); 269 break; 270 case GPIO_LED_BLINK: 271 orion_gpio_set_blink(gpio, 1); 272 } 273 return 0; 274 } 275 276 static struct gpio_led dns323ab_leds[] = { 277 { 278 .name = "power:blue", 279 .gpio = DNS323_GPIO_LED_POWER2, 280 .default_trigger = "default-on", 281 }, { 282 .name = "right:amber", 283 .gpio = DNS323_GPIO_LED_RIGHT_AMBER, 284 .active_low = 1, 285 }, { 286 .name = "left:amber", 287 .gpio = DNS323_GPIO_LED_LEFT_AMBER, 288 .active_low = 1, 289 }, 290 }; 291 292 293 static struct gpio_led dns323c_leds[] = { 294 { 295 .name = "power:blue", 296 .gpio = DNS323C_GPIO_LED_POWER, 297 .default_trigger = "timer", 298 .active_low = 1, 299 }, { 300 .name = "right:amber", 301 .gpio = DNS323C_GPIO_LED_RIGHT_AMBER, 302 .active_low = 1, 303 }, { 304 .name = "left:amber", 305 .gpio = DNS323C_GPIO_LED_LEFT_AMBER, 306 .active_low = 1, 307 }, 308 }; 309 310 311 static struct gpio_led_platform_data dns323ab_led_data = { 312 .num_leds = ARRAY_SIZE(dns323ab_leds), 313 .leds = dns323ab_leds, 314 .gpio_blink_set = dns323_gpio_blink_set, 315 }; 316 317 static struct gpio_led_platform_data dns323c_led_data = { 318 .num_leds = ARRAY_SIZE(dns323c_leds), 319 .leds = dns323c_leds, 320 .gpio_blink_set = dns323_gpio_blink_set, 321 }; 322 323 static struct platform_device dns323_gpio_leds = { 324 .name = "leds-gpio", 325 .id = -1, 326 .dev = { 327 .platform_data = &dns323ab_led_data, 328 }, 329 }; 330 331 /**************************************************************************** 332 * GPIO Attached Keys 333 */ 334 335 static struct gpio_keys_button dns323ab_buttons[] = { 336 { 337 .code = KEY_RESTART, 338 .gpio = DNS323_GPIO_KEY_RESET, 339 .desc = "Reset Button", 340 .active_low = 1, 341 }, { 342 .code = KEY_POWER, 343 .gpio = DNS323_GPIO_KEY_POWER, 344 .desc = "Power Button", 345 .active_low = 1, 346 }, 347 }; 348 349 static struct gpio_keys_platform_data dns323ab_button_data = { 350 .buttons = dns323ab_buttons, 351 .nbuttons = ARRAY_SIZE(dns323ab_buttons), 352 }; 353 354 static struct gpio_keys_button dns323c_buttons[] = { 355 { 356 .code = KEY_POWER, 357 .gpio = DNS323C_GPIO_KEY_POWER, 358 .desc = "Power Button", 359 .active_low = 1, 360 }, 361 }; 362 363 static struct gpio_keys_platform_data dns323c_button_data = { 364 .buttons = dns323c_buttons, 365 .nbuttons = ARRAY_SIZE(dns323c_buttons), 366 }; 367 368 static struct platform_device dns323_button_device = { 369 .name = "gpio-keys", 370 .id = -1, 371 .num_resources = 0, 372 .dev = { 373 .platform_data = &dns323ab_button_data, 374 }, 375 }; 376 377 /***************************************************************************** 378 * SATA 379 */ 380 static struct mv_sata_platform_data dns323_sata_data = { 381 .n_ports = 2, 382 }; 383 384 /**************************************************************************** 385 * General Setup 386 */ 387 static unsigned int dns323a_mpp_modes[] __initdata = { 388 MPP0_PCIE_RST_OUTn, 389 MPP1_GPIO, /* right amber LED (sata ch0) */ 390 MPP2_GPIO, /* left amber LED (sata ch1) */ 391 MPP3_UNUSED, 392 MPP4_GPIO, /* power button LED */ 393 MPP5_GPIO, /* power button LED */ 394 MPP6_GPIO, /* GMT G751-2f overtemp */ 395 MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */ 396 MPP8_GPIO, /* triggers power off */ 397 MPP9_GPIO, /* power button switch */ 398 MPP10_GPIO, /* reset button switch */ 399 MPP11_UNUSED, 400 MPP12_UNUSED, 401 MPP13_UNUSED, 402 MPP14_UNUSED, 403 MPP15_UNUSED, 404 MPP16_UNUSED, 405 MPP17_UNUSED, 406 MPP18_UNUSED, 407 MPP19_UNUSED, 408 0, 409 }; 410 411 static unsigned int dns323b_mpp_modes[] __initdata = { 412 MPP0_UNUSED, 413 MPP1_GPIO, /* right amber LED (sata ch0) */ 414 MPP2_GPIO, /* left amber LED (sata ch1) */ 415 MPP3_GPIO, /* system up flag */ 416 MPP4_GPIO, /* power button LED */ 417 MPP5_GPIO, /* power button LED */ 418 MPP6_GPIO, /* GMT G751-2f overtemp */ 419 MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */ 420 MPP8_GPIO, /* triggers power off */ 421 MPP9_GPIO, /* power button switch */ 422 MPP10_GPIO, /* reset button switch */ 423 MPP11_UNUSED, 424 MPP12_SATA_LED, 425 MPP13_SATA_LED, 426 MPP14_SATA_LED, 427 MPP15_SATA_LED, 428 MPP16_UNUSED, 429 MPP17_UNUSED, 430 MPP18_UNUSED, 431 MPP19_UNUSED, 432 0, 433 }; 434 435 static unsigned int dns323c_mpp_modes[] __initdata = { 436 MPP0_GPIO, /* ? input */ 437 MPP1_GPIO, /* input power switch (0 = pressed) */ 438 MPP2_GPIO, /* output power off */ 439 MPP3_UNUSED, /* ? output */ 440 MPP4_UNUSED, /* ? output */ 441 MPP5_UNUSED, /* ? output */ 442 MPP6_UNUSED, /* ? output */ 443 MPP7_UNUSED, /* ? output */ 444 MPP8_GPIO, /* i/o right amber LED */ 445 MPP9_GPIO, /* i/o left amber LED */ 446 MPP10_GPIO, /* input */ 447 MPP11_UNUSED, 448 MPP12_SATA_LED, 449 MPP13_SATA_LED, 450 MPP14_SATA_LED, 451 MPP15_SATA_LED, 452 MPP16_UNUSED, 453 MPP17_GPIO, /* power button LED */ 454 MPP18_GPIO, /* fan speed bit 0 */ 455 MPP19_GPIO, /* fan speed bit 1 */ 456 0, 457 }; 458 459 /* Rev C1 Fan speed notes: 460 * 461 * The fan is controlled by 2 GPIOs on this board. The settings 462 * of the bits is as follow: 463 * 464 * GPIO 18 GPIO 19 Fan 465 * 466 * 0 0 stopped 467 * 0 1 low speed 468 * 1 0 high speed 469 * 1 1 don't do that (*) 470 * 471 * (*) I think the two bits control two feed-in resistors into a fixed 472 * PWN circuit, setting both bits will basically go a 'bit' faster 473 * than high speed, but d-link doesn't do it and you may get out of 474 * HW spec so don't do it. 475 */ 476 477 /* 478 * On the DNS-323 A1 and B1 the following devices are attached via I2C: 479 * 480 * i2c addr | chip | description 481 * 0x3e | GMT G760Af | fan speed PWM controller 482 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) 483 * 0x68 | ST M41T80 | RTC w/ alarm 484 */ 485 static struct i2c_board_info __initdata dns323ab_i2c_devices[] = { 486 { 487 I2C_BOARD_INFO("g760a", 0x3e), 488 }, { 489 I2C_BOARD_INFO("lm75", 0x48), 490 }, { 491 I2C_BOARD_INFO("m41t80", 0x68), 492 }, 493 }; 494 495 /* 496 * On the DNS-323 C1 the following devices are attached via I2C: 497 * 498 * i2c addr | chip | description 499 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) 500 * 0x68 | ST M41T80 | RTC w/ alarm 501 */ 502 static struct i2c_board_info __initdata dns323c_i2c_devices[] = { 503 { 504 I2C_BOARD_INFO("lm75", 0x48), 505 }, { 506 I2C_BOARD_INFO("m41t80", 0x68), 507 }, 508 }; 509 510 /* DNS-323 rev. A specific power off method */ 511 static void dns323a_power_off(void) 512 { 513 pr_info("DNS-323: Triggering power-off...\n"); 514 gpio_set_value(DNS323_GPIO_POWER_OFF, 1); 515 } 516 517 /* DNS-323 rev B specific power off method */ 518 static void dns323b_power_off(void) 519 { 520 pr_info("DNS-323: Triggering power-off...\n"); 521 /* Pin has to be changed to 1 and back to 0 to do actual power off. */ 522 gpio_set_value(DNS323_GPIO_POWER_OFF, 1); 523 mdelay(100); 524 gpio_set_value(DNS323_GPIO_POWER_OFF, 0); 525 } 526 527 /* DNS-323 rev. C specific power off method */ 528 static void dns323c_power_off(void) 529 { 530 pr_info("DNS-323: Triggering power-off...\n"); 531 gpio_set_value(DNS323C_GPIO_POWER_OFF, 1); 532 } 533 534 static int dns323c_phy_fixup(struct phy_device *phy) 535 { 536 phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS; 537 538 return 0; 539 } 540 541 static int __init dns323_identify_rev(void) 542 { 543 u32 dev, rev, i, reg; 544 545 pr_debug("DNS-323: Identifying board ... \n"); 546 547 /* Rev A1 has a 5181 */ 548 orion5x_pcie_id(&dev, &rev); 549 if (dev == MV88F5181_DEV_ID) { 550 pr_debug("DNS-323: 5181 found, board is A1\n"); 551 return DNS323_REV_A1; 552 } 553 pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n"); 554 555 /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is 556 * a bit gross but we want to do that without links into the eth 557 * driver so let's poke at it directly. We default to rev B1 in 558 * case the accesses fail 559 */ 560 561 #define ETH_SMI_REG (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004) 562 #define SMI_BUSY 0x10000000 563 #define SMI_READ_VALID 0x08000000 564 #define SMI_OPCODE_READ 0x04000000 565 #define SMI_OPCODE_WRITE 0x00000000 566 567 for (i = 0; i < 1000; i++) { 568 reg = readl(ETH_SMI_REG); 569 if (!(reg & SMI_BUSY)) 570 break; 571 } 572 if (i >= 1000) { 573 pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n"); 574 return DNS323_REV_B1; 575 } 576 writel((3 << 21) /* phy ID reg */ | 577 (8 << 16) /* phy addr */ | 578 SMI_OPCODE_READ, ETH_SMI_REG); 579 for (i = 0; i < 1000; i++) { 580 reg = readl(ETH_SMI_REG); 581 if (reg & SMI_READ_VALID) 582 break; 583 } 584 if (i >= 1000) { 585 pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n"); 586 return DNS323_REV_B1; 587 } 588 pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff); 589 590 /* Note: the Marvell tools mask the ID with 0x3f0 before comparison 591 * but I don't see that making a difference here, at least with 592 * any known Marvell PHY ID 593 */ 594 switch(reg & 0xfff0) { 595 case 0x0cc0: /* MV88E1111 */ 596 return DNS323_REV_B1; 597 case 0x0e10: /* MV88E1118 */ 598 return DNS323_REV_C1; 599 default: 600 pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n", 601 reg & 0xffff); 602 } 603 return DNS323_REV_B1; 604 } 605 606 static void __init dns323_init(void) 607 { 608 /* Setup basic Orion functions. Need to be called early. */ 609 orion5x_init(); 610 611 /* Identify revision */ 612 system_rev = dns323_identify_rev(); 613 pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev); 614 615 /* Just to be tricky, the 5182 has a completely different 616 * set of MPP modes to the 5181. 617 */ 618 switch(system_rev) { 619 case DNS323_REV_A1: 620 orion5x_mpp_conf(dns323a_mpp_modes); 621 writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */ 622 break; 623 case DNS323_REV_B1: 624 orion5x_mpp_conf(dns323b_mpp_modes); 625 break; 626 case DNS323_REV_C1: 627 orion5x_mpp_conf(dns323c_mpp_modes); 628 break; 629 } 630 631 /* setup flash mapping 632 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 633 */ 634 orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE); 635 platform_device_register(&dns323_nor_flash); 636 637 /* Sort out LEDs, Buttons and i2c devices */ 638 switch(system_rev) { 639 case DNS323_REV_A1: 640 /* The 5181 power LED is active low and requires 641 * DNS323_GPIO_LED_POWER1 to also be low. 642 */ 643 dns323ab_leds[0].active_low = 1; 644 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable"); 645 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0); 646 /* Fall through */ 647 case DNS323_REV_B1: 648 i2c_register_board_info(0, dns323ab_i2c_devices, 649 ARRAY_SIZE(dns323ab_i2c_devices)); 650 break; 651 case DNS323_REV_C1: 652 /* Hookup LEDs & Buttons */ 653 dns323_gpio_leds.dev.platform_data = &dns323c_led_data; 654 dns323_button_device.dev.platform_data = &dns323c_button_data; 655 656 /* Hookup i2c devices and fan driver */ 657 i2c_register_board_info(0, dns323c_i2c_devices, 658 ARRAY_SIZE(dns323c_i2c_devices)); 659 platform_device_register_simple("dns323c-fan", 0, NULL, 0); 660 661 /* Register fixup for the PHY LEDs */ 662 phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118, 663 MARVELL_PHY_ID_MASK, 664 dns323c_phy_fixup); 665 } 666 667 platform_device_register(&dns323_gpio_leds); 668 platform_device_register(&dns323_button_device); 669 670 /* 671 * Configure peripherals. 672 */ 673 if (dns323_read_mac_addr() < 0) 674 printk("DNS-323: Failed to read MAC address\n"); 675 orion5x_ehci0_init(); 676 orion5x_eth_init(&dns323_eth_data); 677 orion5x_i2c_init(); 678 orion5x_uart0_init(); 679 680 /* Remaining GPIOs */ 681 switch(system_rev) { 682 case DNS323_REV_A1: 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 = dns323a_power_off; 688 break; 689 case DNS323_REV_B1: 690 /* 5182 built-in SATA init */ 691 orion5x_sata_init(&dns323_sata_data); 692 693 /* The DNS323 rev B1 has flag to indicate the system is up. 694 * Without this flag set, power LED will flash and cannot be 695 * controlled via leds-gpio. 696 */ 697 if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0) 698 gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1); 699 700 /* Poweroff GPIO */ 701 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || 702 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) 703 pr_err("DNS-323: failed to setup power-off GPIO\n"); 704 pm_power_off = dns323b_power_off; 705 break; 706 case DNS323_REV_C1: 707 /* 5182 built-in SATA init */ 708 orion5x_sata_init(&dns323_sata_data); 709 710 /* Poweroff GPIO */ 711 if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 || 712 gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0) 713 pr_err("DNS-323: failed to setup power-off GPIO\n"); 714 pm_power_off = dns323c_power_off; 715 716 /* Now, -this- should theorically be done by the sata_mv driver 717 * once I figure out what's going on there. Maybe the behaviour 718 * of the LEDs should be somewhat passed via the platform_data. 719 * for now, just whack the register and make the LEDs happy 720 * 721 * Note: AFAIK, rev B1 needs the same treatement but I'll let 722 * somebody else test it. 723 */ 724 writel(0x5, ORION5X_SATA_VIRT_BASE | 0x2c); 725 break; 726 } 727 } 728 729 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */ 730 MACHINE_START(DNS323, "D-Link DNS-323") 731 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ 732 .atag_offset = 0x100, 733 .init_machine = dns323_init, 734 .map_io = orion5x_map_io, 735 .init_early = orion5x_init_early, 736 .init_irq = orion5x_init_irq, 737 .timer = &orion5x_timer, 738 .fixup = tag_fixup_mem32, 739 .restart = orion5x_restart, 740 MACHINE_END 741