1/* 2 * Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org> 3 * Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20#include <linux/init.h> 21#include <linux/types.h> 22#include <linux/module.h> 23#include <linux/delay.h> 24#include <linux/dma-mapping.h> 25#include <linux/platform_device.h> 26#include <linux/mtd/physmap.h> 27#include <linux/serial.h> 28#include <linux/serial_8250.h> 29#include <linux/ioport.h> 30#include <linux/io.h> 31#include <linux/vlynq.h> 32#include <linux/leds.h> 33#include <linux/string.h> 34#include <linux/etherdevice.h> 35#include <linux/phy.h> 36#include <linux/phy_fixed.h> 37#include <linux/gpio.h> 38#include <linux/clk.h> 39 40#include <asm/addrspace.h> 41#include <asm/mach-ar7/ar7.h> 42#include <asm/mach-ar7/gpio.h> 43#include <asm/mach-ar7/prom.h> 44 45/***************************************************************************** 46 * VLYNQ Bus 47 ****************************************************************************/ 48struct plat_vlynq_data { 49 struct plat_vlynq_ops ops; 50 int gpio_bit; 51 int reset_bit; 52}; 53 54static int vlynq_on(struct vlynq_device *dev) 55{ 56 int ret; 57 struct plat_vlynq_data *pdata = dev->dev.platform_data; 58 59 ret = gpio_request(pdata->gpio_bit, "vlynq"); 60 if (ret) 61 goto out; 62 63 ar7_device_reset(pdata->reset_bit); 64 65 ret = ar7_gpio_disable(pdata->gpio_bit); 66 if (ret) 67 goto out_enabled; 68 69 ret = ar7_gpio_enable(pdata->gpio_bit); 70 if (ret) 71 goto out_enabled; 72 73 ret = gpio_direction_output(pdata->gpio_bit, 0); 74 if (ret) 75 goto out_gpio_enabled; 76 77 msleep(50); 78 79 gpio_set_value(pdata->gpio_bit, 1); 80 81 msleep(50); 82 83 return 0; 84 85out_gpio_enabled: 86 ar7_gpio_disable(pdata->gpio_bit); 87out_enabled: 88 ar7_device_disable(pdata->reset_bit); 89 gpio_free(pdata->gpio_bit); 90out: 91 return ret; 92} 93 94static void vlynq_off(struct vlynq_device *dev) 95{ 96 struct plat_vlynq_data *pdata = dev->dev.platform_data; 97 98 ar7_gpio_disable(pdata->gpio_bit); 99 gpio_free(pdata->gpio_bit); 100 ar7_device_disable(pdata->reset_bit); 101} 102 103static struct resource vlynq_low_res[] = { 104 { 105 .name = "regs", 106 .flags = IORESOURCE_MEM, 107 .start = AR7_REGS_VLYNQ0, 108 .end = AR7_REGS_VLYNQ0 + 0xff, 109 }, 110 { 111 .name = "irq", 112 .flags = IORESOURCE_IRQ, 113 .start = 29, 114 .end = 29, 115 }, 116 { 117 .name = "mem", 118 .flags = IORESOURCE_MEM, 119 .start = 0x04000000, 120 .end = 0x04ffffff, 121 }, 122 { 123 .name = "devirq", 124 .flags = IORESOURCE_IRQ, 125 .start = 80, 126 .end = 111, 127 }, 128}; 129 130static struct resource vlynq_high_res[] = { 131 { 132 .name = "regs", 133 .flags = IORESOURCE_MEM, 134 .start = AR7_REGS_VLYNQ1, 135 .end = AR7_REGS_VLYNQ1 + 0xff, 136 }, 137 { 138 .name = "irq", 139 .flags = IORESOURCE_IRQ, 140 .start = 33, 141 .end = 33, 142 }, 143 { 144 .name = "mem", 145 .flags = IORESOURCE_MEM, 146 .start = 0x0c000000, 147 .end = 0x0cffffff, 148 }, 149 { 150 .name = "devirq", 151 .flags = IORESOURCE_IRQ, 152 .start = 112, 153 .end = 143, 154 }, 155}; 156 157static struct plat_vlynq_data vlynq_low_data = { 158 .ops = { 159 .on = vlynq_on, 160 .off = vlynq_off, 161 }, 162 .reset_bit = 20, 163 .gpio_bit = 18, 164}; 165 166static struct plat_vlynq_data vlynq_high_data = { 167 .ops = { 168 .on = vlynq_on, 169 .off = vlynq_off, 170 }, 171 .reset_bit = 16, 172 .gpio_bit = 19, 173}; 174 175static struct platform_device vlynq_low = { 176 .id = 0, 177 .name = "vlynq", 178 .dev = { 179 .platform_data = &vlynq_low_data, 180 }, 181 .resource = vlynq_low_res, 182 .num_resources = ARRAY_SIZE(vlynq_low_res), 183}; 184 185static struct platform_device vlynq_high = { 186 .id = 1, 187 .name = "vlynq", 188 .dev = { 189 .platform_data = &vlynq_high_data, 190 }, 191 .resource = vlynq_high_res, 192 .num_resources = ARRAY_SIZE(vlynq_high_res), 193}; 194 195/***************************************************************************** 196 * Flash 197 ****************************************************************************/ 198static struct resource physmap_flash_resource = { 199 .name = "mem", 200 .flags = IORESOURCE_MEM, 201 .start = 0x10000000, 202 .end = 0x107fffff, 203}; 204 205static struct physmap_flash_data physmap_flash_data = { 206 .width = 2, 207}; 208 209static struct platform_device physmap_flash = { 210 .name = "physmap-flash", 211 .dev = { 212 .platform_data = &physmap_flash_data, 213 }, 214 .resource = &physmap_flash_resource, 215 .num_resources = 1, 216}; 217 218/***************************************************************************** 219 * Ethernet 220 ****************************************************************************/ 221static struct resource cpmac_low_res[] = { 222 { 223 .name = "regs", 224 .flags = IORESOURCE_MEM, 225 .start = AR7_REGS_MAC0, 226 .end = AR7_REGS_MAC0 + 0x7ff, 227 }, 228 { 229 .name = "irq", 230 .flags = IORESOURCE_IRQ, 231 .start = 27, 232 .end = 27, 233 }, 234}; 235 236static struct resource cpmac_high_res[] = { 237 { 238 .name = "regs", 239 .flags = IORESOURCE_MEM, 240 .start = AR7_REGS_MAC1, 241 .end = AR7_REGS_MAC1 + 0x7ff, 242 }, 243 { 244 .name = "irq", 245 .flags = IORESOURCE_IRQ, 246 .start = 41, 247 .end = 41, 248 }, 249}; 250 251static struct fixed_phy_status fixed_phy_status __initdata = { 252 .link = 1, 253 .speed = 100, 254 .duplex = 1, 255}; 256 257static struct plat_cpmac_data cpmac_low_data = { 258 .reset_bit = 17, 259 .power_bit = 20, 260 .phy_mask = 0x80000000, 261}; 262 263static struct plat_cpmac_data cpmac_high_data = { 264 .reset_bit = 21, 265 .power_bit = 22, 266 .phy_mask = 0x7fffffff, 267}; 268 269static u64 cpmac_dma_mask = DMA_BIT_MASK(32); 270 271static struct platform_device cpmac_low = { 272 .id = 0, 273 .name = "cpmac", 274 .dev = { 275 .dma_mask = &cpmac_dma_mask, 276 .coherent_dma_mask = DMA_BIT_MASK(32), 277 .platform_data = &cpmac_low_data, 278 }, 279 .resource = cpmac_low_res, 280 .num_resources = ARRAY_SIZE(cpmac_low_res), 281}; 282 283static struct platform_device cpmac_high = { 284 .id = 1, 285 .name = "cpmac", 286 .dev = { 287 .dma_mask = &cpmac_dma_mask, 288 .coherent_dma_mask = DMA_BIT_MASK(32), 289 .platform_data = &cpmac_high_data, 290 }, 291 .resource = cpmac_high_res, 292 .num_resources = ARRAY_SIZE(cpmac_high_res), 293}; 294 295static void __init cpmac_get_mac(int instance, unsigned char *dev_addr) 296{ 297 char name[5], *mac; 298 299 sprintf(name, "mac%c", 'a' + instance); 300 mac = prom_getenv(name); 301 if (!mac && instance) { 302 sprintf(name, "mac%c", 'a'); 303 mac = prom_getenv(name); 304 } 305 306 if (mac) { 307 if (sscanf(mac, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", 308 &dev_addr[0], &dev_addr[1], 309 &dev_addr[2], &dev_addr[3], 310 &dev_addr[4], &dev_addr[5]) != 6) { 311 pr_warning("cannot parse mac address, " 312 "using random address\n"); 313 random_ether_addr(dev_addr); 314 } 315 } else 316 random_ether_addr(dev_addr); 317} 318 319/***************************************************************************** 320 * USB 321 ****************************************************************************/ 322static struct resource usb_res[] = { 323 { 324 .name = "regs", 325 .flags = IORESOURCE_MEM, 326 .start = AR7_REGS_USB, 327 .end = AR7_REGS_USB + 0xff, 328 }, 329 { 330 .name = "irq", 331 .flags = IORESOURCE_IRQ, 332 .start = 32, 333 .end = 32, 334 }, 335 { 336 .name = "mem", 337 .flags = IORESOURCE_MEM, 338 .start = 0x03400000, 339 .end = 0x03401fff, 340 }, 341}; 342 343static struct platform_device ar7_udc = { 344 .name = "ar7_udc", 345 .resource = usb_res, 346 .num_resources = ARRAY_SIZE(usb_res), 347}; 348 349/***************************************************************************** 350 * LEDs 351 ****************************************************************************/ 352static struct gpio_led default_leds[] = { 353 { 354 .name = "status", 355 .gpio = 8, 356 .active_low = 1, 357 }, 358}; 359 360static struct gpio_led dsl502t_leds[] = { 361 { 362 .name = "status", 363 .gpio = 9, 364 .active_low = 1, 365 }, 366 { 367 .name = "ethernet", 368 .gpio = 7, 369 .active_low = 1, 370 }, 371 { 372 .name = "usb", 373 .gpio = 12, 374 .active_low = 1, 375 }, 376}; 377 378static struct gpio_led dg834g_leds[] = { 379 { 380 .name = "ppp", 381 .gpio = 6, 382 .active_low = 1, 383 }, 384 { 385 .name = "status", 386 .gpio = 7, 387 .active_low = 1, 388 }, 389 { 390 .name = "adsl", 391 .gpio = 8, 392 .active_low = 1, 393 }, 394 { 395 .name = "wifi", 396 .gpio = 12, 397 .active_low = 1, 398 }, 399 { 400 .name = "power", 401 .gpio = 14, 402 .active_low = 1, 403 .default_trigger = "default-on", 404 }, 405}; 406 407static struct gpio_led fb_sl_leds[] = { 408 { 409 .name = "1", 410 .gpio = 7, 411 }, 412 { 413 .name = "2", 414 .gpio = 13, 415 .active_low = 1, 416 }, 417 { 418 .name = "3", 419 .gpio = 10, 420 .active_low = 1, 421 }, 422 { 423 .name = "4", 424 .gpio = 12, 425 .active_low = 1, 426 }, 427 { 428 .name = "5", 429 .gpio = 9, 430 .active_low = 1, 431 }, 432}; 433 434static struct gpio_led fb_fon_leds[] = { 435 { 436 .name = "1", 437 .gpio = 8, 438 }, 439 { 440 .name = "2", 441 .gpio = 3, 442 .active_low = 1, 443 }, 444 { 445 .name = "3", 446 .gpio = 5, 447 }, 448 { 449 .name = "4", 450 .gpio = 4, 451 .active_low = 1, 452 }, 453 { 454 .name = "5", 455 .gpio = 11, 456 .active_low = 1, 457 }, 458}; 459 460static struct gpio_led_platform_data ar7_led_data; 461 462static struct platform_device ar7_gpio_leds = { 463 .name = "leds-gpio", 464 .dev = { 465 .platform_data = &ar7_led_data, 466 } 467}; 468 469static void __init detect_leds(void) 470{ 471 char *prid, *usb_prod; 472 473 /* Default LEDs */ 474 ar7_led_data.num_leds = ARRAY_SIZE(default_leds); 475 ar7_led_data.leds = default_leds; 476 477 prid = prom_getenv("ProductID"); 478 usb_prod = prom_getenv("usb_prod"); 479 480 /* If we can't get the product id from PROM, use the default LEDs */ 481 if (!prid) 482 return; 483 484 if (strstr(prid, "Fritz_Box_FON")) { 485 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds); 486 ar7_led_data.leds = fb_fon_leds; 487 } else if (strstr(prid, "Fritz_Box_")) { 488 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds); 489 ar7_led_data.leds = fb_sl_leds; 490 } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB")) 491 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) { 492 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds); 493 ar7_led_data.leds = dsl502t_leds; 494 } else if (strstr(prid, "DG834")) { 495 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds); 496 ar7_led_data.leds = dg834g_leds; 497 } 498} 499 500/***************************************************************************** 501 * Watchdog 502 ****************************************************************************/ 503static struct resource ar7_wdt_res = { 504 .name = "regs", 505 .flags = IORESOURCE_MEM, 506 .start = -1, /* Filled at runtime */ 507 .end = -1, /* Filled at runtime */ 508}; 509 510static struct platform_device ar7_wdt = { 511 .name = "ar7_wdt", 512 .resource = &ar7_wdt_res, 513 .num_resources = 1, 514}; 515 516/***************************************************************************** 517 * Init 518 ****************************************************************************/ 519static int __init ar7_register_uarts(void) 520{ 521#ifdef CONFIG_SERIAL_8250 522 static struct uart_port uart_port __initdata; 523 struct clk *bus_clk; 524 int res; 525 526 memset(&uart_port, 0, sizeof(struct uart_port)); 527 528 bus_clk = clk_get(NULL, "bus"); 529 if (IS_ERR(bus_clk)) 530 panic("unable to get bus clk\n"); 531 532 uart_port.type = PORT_AR7; 533 uart_port.uartclk = clk_get_rate(bus_clk) / 2; 534 uart_port.iotype = UPIO_MEM32; 535 uart_port.regshift = 2; 536 537 uart_port.line = 0; 538 uart_port.irq = AR7_IRQ_UART0; 539 uart_port.mapbase = AR7_REGS_UART0; 540 uart_port.membase = ioremap(uart_port.mapbase, 256); 541 542 res = early_serial_setup(&uart_port); 543 if (res) 544 return res; 545 546 /* Only TNETD73xx have a second serial port */ 547 if (ar7_has_second_uart()) { 548 uart_port.line = 1; 549 uart_port.irq = AR7_IRQ_UART1; 550 uart_port.mapbase = UR8_REGS_UART1; 551 uart_port.membase = ioremap(uart_port.mapbase, 256); 552 553 res = early_serial_setup(&uart_port); 554 if (res) 555 return res; 556 } 557#endif 558 559 return 0; 560} 561 562static int __init ar7_register_devices(void) 563{ 564 void __iomem *bootcr; 565 u32 val; 566 int res; 567 568 res = ar7_register_uarts(); 569 if (res) 570 pr_err("unable to setup uart(s): %d\n", res); 571 572 res = platform_device_register(&physmap_flash); 573 if (res) 574 pr_warning("unable to register physmap-flash: %d\n", res); 575 576 ar7_device_disable(vlynq_low_data.reset_bit); 577 res = platform_device_register(&vlynq_low); 578 if (res) 579 pr_warning("unable to register vlynq-low: %d\n", res); 580 581 if (ar7_has_high_vlynq()) { 582 ar7_device_disable(vlynq_high_data.reset_bit); 583 res = platform_device_register(&vlynq_high); 584 if (res) 585 pr_warning("unable to register vlynq-high: %d\n", res); 586 } 587 588 if (ar7_has_high_cpmac()) { 589 res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status); 590 if (!res) { 591 cpmac_get_mac(1, cpmac_high_data.dev_addr); 592 593 res = platform_device_register(&cpmac_high); 594 if (res) 595 pr_warning("unable to register cpmac-high: %d\n", res); 596 } else 597 pr_warning("unable to add cpmac-high phy: %d\n", res); 598 } else 599 cpmac_low_data.phy_mask = 0xffffffff; 600 601 res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status); 602 if (!res) { 603 cpmac_get_mac(0, cpmac_low_data.dev_addr); 604 res = platform_device_register(&cpmac_low); 605 if (res) 606 pr_warning("unable to register cpmac-low: %d\n", res); 607 } else 608 pr_warning("unable to add cpmac-low phy: %d\n", res); 609 610 detect_leds(); 611 res = platform_device_register(&ar7_gpio_leds); 612 if (res) 613 pr_warning("unable to register leds: %d\n", res); 614 615 res = platform_device_register(&ar7_udc); 616 if (res) 617 pr_warning("unable to register usb slave: %d\n", res); 618 619 /* Register watchdog only if enabled in hardware */ 620 bootcr = ioremap_nocache(AR7_REGS_DCL, 4); 621 val = readl(bootcr); 622 iounmap(bootcr); 623 if (val & AR7_WDT_HW_ENA) { 624 if (ar7_has_high_vlynq()) 625 ar7_wdt_res.start = UR8_REGS_WDT; 626 else 627 ar7_wdt_res.start = AR7_REGS_WDT; 628 629 ar7_wdt_res.end = ar7_wdt_res.start + 0x20; 630 res = platform_device_register(&ar7_wdt); 631 if (res) 632 pr_warning("unable to register watchdog: %d\n", res); 633 } 634 635 return 0; 636} 637device_initcall(ar7_register_devices); 638