dns323-setup.c revision 6e2daa49420777190c133d7097dd8d5c05b475ac
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(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 struct orion5x_mpp_mode dns323a_mpp_modes[] __initdata = { 389 { 0, MPP_PCIE_RST_OUTn }, 390 { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ 391 { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ 392 { 3, MPP_UNUSED }, 393 { 4, MPP_GPIO }, /* power button LED */ 394 { 5, MPP_GPIO }, /* power button LED */ 395 { 6, MPP_GPIO }, /* GMT G751-2f overtemp */ 396 { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */ 397 { 8, MPP_GPIO }, /* triggers power off */ 398 { 9, MPP_GPIO }, /* power button switch */ 399 { 10, MPP_GPIO }, /* reset button switch */ 400 { 11, MPP_UNUSED }, 401 { 12, MPP_UNUSED }, 402 { 13, MPP_UNUSED }, 403 { 14, MPP_UNUSED }, 404 { 15, MPP_UNUSED }, 405 { 16, MPP_UNUSED }, 406 { 17, MPP_UNUSED }, 407 { 18, MPP_UNUSED }, 408 { 19, MPP_UNUSED }, 409 { -1 }, 410}; 411 412static struct orion5x_mpp_mode dns323b_mpp_modes[] __initdata = { 413 { 0, MPP_UNUSED }, 414 { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ 415 { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ 416 { 3, MPP_GPIO }, /* system up flag */ 417 { 4, MPP_GPIO }, /* power button LED */ 418 { 5, MPP_GPIO }, /* power button LED */ 419 { 6, MPP_GPIO }, /* GMT G751-2f overtemp */ 420 { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */ 421 { 8, MPP_GPIO }, /* triggers power off */ 422 { 9, MPP_GPIO }, /* power button switch */ 423 { 10, MPP_GPIO }, /* reset button switch */ 424 { 11, MPP_UNUSED }, 425 { 12, MPP_SATA_LED }, 426 { 13, MPP_SATA_LED }, 427 { 14, MPP_SATA_LED }, 428 { 15, MPP_SATA_LED }, 429 { 16, MPP_UNUSED }, 430 { 17, MPP_UNUSED }, 431 { 18, MPP_UNUSED }, 432 { 19, MPP_UNUSED }, 433 { -1 }, 434}; 435 436static struct orion5x_mpp_mode dns323c_mpp_modes[] __initdata = { 437 { 0, MPP_GPIO }, /* ? input */ 438 { 1, MPP_GPIO }, /* input power switch (0 = pressed) */ 439 { 2, MPP_GPIO }, /* output power off */ 440 { 3, MPP_UNUSED }, /* ? output */ 441 { 4, MPP_UNUSED }, /* ? output */ 442 { 5, MPP_UNUSED }, /* ? output */ 443 { 6, MPP_UNUSED }, /* ? output */ 444 { 7, MPP_UNUSED }, /* ? output */ 445 { 8, MPP_GPIO }, /* i/o right amber LED */ 446 { 9, MPP_GPIO }, /* i/o left amber LED */ 447 { 10, MPP_GPIO }, /* input */ 448 { 11, MPP_UNUSED }, 449 { 12, MPP_SATA_LED }, 450 { 13, MPP_SATA_LED }, 451 { 14, MPP_SATA_LED }, 452 { 15, MPP_SATA_LED }, 453 { 16, MPP_UNUSED }, 454 { 17, MPP_GPIO }, /* power button LED */ 455 { 18, MPP_GPIO }, /* fan speed bit 0 */ 456 { 19, MPP_GPIO }, /* fan speed bit 1 */ 457 { -1 }, 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 .phys_io = ORION5X_REGS_PHYS_BASE, 734 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, 735 .boot_params = 0x00000100, 736 .init_machine = dns323_init, 737 .map_io = orion5x_map_io, 738 .init_irq = orion5x_init_irq, 739 .timer = &orion5x_timer, 740 .fixup = tag_fixup_mem32, 741MACHINE_END 742