arch/mips/ar7/platform.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
   4  * Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
   5  */
   6
   7 #include <linux/init.h>
   8 #include <linux/types.h>
   9 #include <linux/delay.h>
  10 #include <linux/dma-mapping.h>
  11 #include <linux/platform_device.h>
  12 #include <linux/mtd/physmap.h>
  13 #include <linux/serial.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/ioport.h>
  16 #include <linux/io.h>
  17 #include <linux/vlynq.h>
  18 #include <linux/leds.h>
  19 #include <linux/string.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/phy.h>
  22 #include <linux/phy_fixed.h>
  23 #include <linux/gpio.h>
  24 #include <linux/clk.h>
  25
  26 #include <asm/addrspace.h>
  27 #include <asm/mach-ar7/ar7.h>
  28 #include <asm/mach-ar7/prom.h>
  29
  30 /*****************************************************************************
  31  * VLYNQ Bus
  32  ****************************************************************************/
  33 struct plat_vlynq_data {
  34         struct plat_vlynq_ops ops;
  35         int gpio_bit;
  36         int reset_bit;
  37 };
  38
  39 static int vlynq_on(struct vlynq_device *dev)
  40 {
  41         int ret;
  42         struct plat_vlynq_data *pdata = dev->dev.platform_data;
  43
  44         ret = gpio_request(pdata->gpio_bit, "vlynq");
  45         if (ret)
  46                 goto out;
  47
  48         ar7_device_reset(pdata->reset_bit);
  49
  50         ret = ar7_gpio_disable(pdata->gpio_bit);
  51         if (ret)
  52                 goto out_enabled;
  53
  54         ret = ar7_gpio_enable(pdata->gpio_bit);
  55         if (ret)
  56                 goto out_enabled;
  57
  58         ret = gpio_direction_output(pdata->gpio_bit, 0);
  59         if (ret)
  60                 goto out_gpio_enabled;
  61
  62         msleep(50);
  63
  64         gpio_set_value(pdata->gpio_bit, 1);
  65
  66         msleep(50);
  67
  68         return 0;
  69
  70 out_gpio_enabled:
  71         ar7_gpio_disable(pdata->gpio_bit);
  72 out_enabled:
  73         ar7_device_disable(pdata->reset_bit);
  74         gpio_free(pdata->gpio_bit);
  75 out:
  76         return ret;
  77 }
  78
  79 static void vlynq_off(struct vlynq_device *dev)
  80 {
  81         struct plat_vlynq_data *pdata = dev->dev.platform_data;
  82
  83         ar7_gpio_disable(pdata->gpio_bit);
  84         gpio_free(pdata->gpio_bit);
  85         ar7_device_disable(pdata->reset_bit);
  86 }
  87
  88 static struct resource vlynq_low_res[] = {
  89         {
  90                 .name   = "regs",
  91                 .flags  = IORESOURCE_MEM,
  92                 .start  = AR7_REGS_VLYNQ0,
  93                 .end    = AR7_REGS_VLYNQ0 + 0xff,
  94         },
  95         {
  96                 .name   = "irq",
  97                 .flags  = IORESOURCE_IRQ,
  98                 .start  = 29,
  99                 .end    = 29,
 100         },
 101         {
 102                 .name   = "mem",
 103                 .flags  = IORESOURCE_MEM,
 104                 .start  = 0x04000000,
 105                 .end    = 0x04ffffff,
 106         },
 107         {
 108                 .name   = "devirq",
 109                 .flags  = IORESOURCE_IRQ,
 110                 .start  = 80,
 111                 .end    = 111,
 112         },
 113 };
 114
 115 static struct resource vlynq_high_res[] = {
 116         {
 117                 .name   = "regs",
 118                 .flags  = IORESOURCE_MEM,
 119                 .start  = AR7_REGS_VLYNQ1,
 120                 .end    = AR7_REGS_VLYNQ1 + 0xff,
 121         },
 122         {
 123                 .name   = "irq",
 124                 .flags  = IORESOURCE_IRQ,
 125                 .start  = 33,
 126                 .end    = 33,
 127         },
 128         {
 129                 .name   = "mem",
 130                 .flags  = IORESOURCE_MEM,
 131                 .start  = 0x0c000000,
 132                 .end    = 0x0cffffff,
 133         },
 134         {
 135                 .name   = "devirq",
 136                 .flags  = IORESOURCE_IRQ,
 137                 .start  = 112,
 138                 .end    = 143,
 139         },
 140 };
 141
 142 static struct plat_vlynq_data vlynq_low_data = {
 143         .ops = {
 144                 .on     = vlynq_on,
 145                 .off    = vlynq_off,
 146         },
 147         .reset_bit      = 20,
 148         .gpio_bit       = 18,
 149 };
 150
 151 static struct plat_vlynq_data vlynq_high_data = {
 152         .ops = {
 153                 .on     = vlynq_on,
 154                 .off    = vlynq_off,
 155         },
 156         .reset_bit      = 16,
 157         .gpio_bit       = 19,
 158 };
 159
 160 static struct platform_device vlynq_low = {
 161         .id             = 0,
 162         .name           = "vlynq",
 163         .dev = {
 164                 .platform_data  = &vlynq_low_data,
 165         },
 166         .resource       = vlynq_low_res,
 167         .num_resources  = ARRAY_SIZE(vlynq_low_res),
 168 };
 169
 170 static struct platform_device vlynq_high = {
 171         .id             = 1,
 172         .name           = "vlynq",
 173         .dev = {
 174                 .platform_data  = &vlynq_high_data,
 175         },
 176         .resource       = vlynq_high_res,
 177         .num_resources  = ARRAY_SIZE(vlynq_high_res),
 178 };
 179
 180 /*****************************************************************************
 181  * Flash
 182  ****************************************************************************/
 183 static struct resource physmap_flash_resource = {
 184         .name   = "mem",
 185         .flags  = IORESOURCE_MEM,
 186         .start  = 0x10000000,
 187         .end    = 0x107fffff,
 188 };
 189
 190 static const char *ar7_probe_types[] = { "ar7part", NULL };
 191
 192 static struct physmap_flash_data physmap_flash_data = {
 193         .width  = 2,
 194         .part_probe_types = ar7_probe_types,
 195 };
 196
 197 static struct platform_device physmap_flash = {
 198         .name           = "physmap-flash",
 199         .dev = {
 200                 .platform_data  = &physmap_flash_data,
 201         },
 202         .resource       = &physmap_flash_resource,
 203         .num_resources  = 1,
 204 };
 205
 206 /*****************************************************************************
 207  * Ethernet
 208  ****************************************************************************/
 209 static struct resource cpmac_low_res[] = {
 210         {
 211                 .name   = "regs",
 212                 .flags  = IORESOURCE_MEM,
 213                 .start  = AR7_REGS_MAC0,
 214                 .end    = AR7_REGS_MAC0 + 0x7ff,
 215         },
 216         {
 217                 .name   = "irq",
 218                 .flags  = IORESOURCE_IRQ,
 219                 .start  = 27,
 220                 .end    = 27,
 221         },
 222 };
 223
 224 static struct resource cpmac_high_res[] = {
 225         {
 226                 .name   = "regs",
 227                 .flags  = IORESOURCE_MEM,
 228                 .start  = AR7_REGS_MAC1,
 229                 .end    = AR7_REGS_MAC1 + 0x7ff,
 230         },
 231         {
 232                 .name   = "irq",
 233                 .flags  = IORESOURCE_IRQ,
 234                 .start  = 41,
 235                 .end    = 41,
 236         },
 237 };
 238
 239 static struct fixed_phy_status fixed_phy_status __initdata = {
 240         .link           = 1,
 241         .speed          = 100,
 242         .duplex         = 1,
 243 };
 244
 245 static struct plat_cpmac_data cpmac_low_data = {
 246         .reset_bit      = 17,
 247         .power_bit      = 20,
 248         .phy_mask       = 0x80000000,
 249 };
 250
 251 static struct plat_cpmac_data cpmac_high_data = {
 252         .reset_bit      = 21,
 253         .power_bit      = 22,
 254         .phy_mask       = 0x7fffffff,
 255 };
 256
 257 static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
 258
 259 static struct platform_device cpmac_low = {
 260         .id             = 0,
 261         .name           = "cpmac",
 262         .dev = {
 263                 .dma_mask               = &cpmac_dma_mask,
 264                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 265                 .platform_data          = &cpmac_low_data,
 266         },
 267         .resource       = cpmac_low_res,
 268         .num_resources  = ARRAY_SIZE(cpmac_low_res),
 269 };
 270
 271 static struct platform_device cpmac_high = {
 272         .id             = 1,
 273         .name           = "cpmac",
 274         .dev = {
 275                 .dma_mask               = &cpmac_dma_mask,
 276                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 277                 .platform_data          = &cpmac_high_data,
 278         },
 279         .resource       = cpmac_high_res,
 280         .num_resources  = ARRAY_SIZE(cpmac_high_res),
 281 };
 282
 283 static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
 284 {
 285         char name[5], *mac;
 286
 287         sprintf(name, "mac%c", 'a' + instance);
 288         mac = prom_getenv(name);
 289         if (!mac && instance) {
 290                 sprintf(name, "mac%c", 'a');
 291                 mac = prom_getenv(name);
 292         }
 293
 294         if (mac) {
 295                 if (!mac_pton(mac, dev_addr)) {
 296                         pr_warn("cannot parse mac address, using random address\n");
 297                         eth_random_addr(dev_addr);
 298                 }
 299         } else
 300                 eth_random_addr(dev_addr);
 301 }
 302
 303 /*****************************************************************************
 304  * USB
 305  ****************************************************************************/
 306 static struct resource usb_res[] = {
 307         {
 308                 .name   = "regs",
 309                 .flags  = IORESOURCE_MEM,
 310                 .start  = AR7_REGS_USB,
 311                 .end    = AR7_REGS_USB + 0xff,
 312         },
 313         {
 314                 .name   = "irq",
 315                 .flags  = IORESOURCE_IRQ,
 316                 .start  = 32,
 317                 .end    = 32,
 318         },
 319         {
 320                 .name   = "mem",
 321                 .flags  = IORESOURCE_MEM,
 322                 .start  = 0x03400000,
 323                 .end    = 0x03401fff,
 324         },
 325 };
 326
 327 static struct platform_device ar7_udc = {
 328         .name           = "ar7_udc",
 329         .resource       = usb_res,
 330         .num_resources  = ARRAY_SIZE(usb_res),
 331 };
 332
 333 /*****************************************************************************
 334  * LEDs
 335  ****************************************************************************/
 336 static const struct gpio_led default_leds[] = {
 337         {
 338                 .name                   = "status",
 339                 .gpio                   = 8,
 340                 .active_low             = 1,
 341         },
 342 };
 343
 344 static const struct gpio_led titan_leds[] = {
 345         { .name = "status", .gpio = 8, .active_low = 1, },
 346         { .name = "wifi", .gpio = 13, .active_low = 1, },
 347 };
 348
 349 static const struct gpio_led dsl502t_leds[] = {
 350         {
 351                 .name                   = "status",
 352                 .gpio                   = 9,
 353                 .active_low             = 1,
 354         },
 355         {
 356                 .name                   = "ethernet",
 357                 .gpio                   = 7,
 358                 .active_low             = 1,
 359         },
 360         {
 361                 .name                   = "usb",
 362                 .gpio                   = 12,
 363                 .active_low             = 1,
 364         },
 365 };
 366
 367 static const struct gpio_led dg834g_leds[] = {
 368         {
 369                 .name                   = "ppp",
 370                 .gpio                   = 6,
 371                 .active_low             = 1,
 372         },
 373         {
 374                 .name                   = "status",
 375                 .gpio                   = 7,
 376                 .active_low             = 1,
 377         },
 378         {
 379                 .name                   = "adsl",
 380                 .gpio                   = 8,
 381                 .active_low             = 1,
 382         },
 383         {
 384                 .name                   = "wifi",
 385                 .gpio                   = 12,
 386                 .active_low             = 1,
 387         },
 388         {
 389                 .name                   = "power",
 390                 .gpio                   = 14,
 391                 .active_low             = 1,
 392                 .default_trigger        = "default-on",
 393         },
 394 };
 395
 396 static const struct gpio_led fb_sl_leds[] = {
 397         {
 398                 .name                   = "1",
 399                 .gpio                   = 7,
 400         },
 401         {
 402                 .name                   = "2",
 403                 .gpio                   = 13,
 404                 .active_low             = 1,
 405         },
 406         {
 407                 .name                   = "3",
 408                 .gpio                   = 10,
 409                 .active_low             = 1,
 410         },
 411         {
 412                 .name                   = "4",
 413                 .gpio                   = 12,
 414                 .active_low             = 1,
 415         },
 416         {
 417                 .name                   = "5",
 418                 .gpio                   = 9,
 419                 .active_low             = 1,
 420         },
 421 };
 422
 423 static const struct gpio_led fb_fon_leds[] = {
 424         {
 425                 .name                   = "1",
 426                 .gpio                   = 8,
 427         },
 428         {
 429                 .name                   = "2",
 430                 .gpio                   = 3,
 431                 .active_low             = 1,
 432         },
 433         {
 434                 .name                   = "3",
 435                 .gpio                   = 5,
 436         },
 437         {
 438                 .name                   = "4",
 439                 .gpio                   = 4,
 440                 .active_low             = 1,
 441         },
 442         {
 443                 .name                   = "5",
 444                 .gpio                   = 11,
 445                 .active_low             = 1,
 446         },
 447 };
 448
 449 static const struct gpio_led gt701_leds[] = {
 450         {
 451                 .name                   = "inet:green",
 452                 .gpio                   = 13,
 453                 .active_low             = 1,
 454         },
 455         {
 456                 .name                   = "usb",
 457                 .gpio                   = 12,
 458                 .active_low             = 1,
 459         },
 460         {
 461                 .name                   = "inet:red",
 462                 .gpio                   = 9,
 463                 .active_low             = 1,
 464         },
 465         {
 466                 .name                   = "power:red",
 467                 .gpio                   = 7,
 468                 .active_low             = 1,
 469         },
 470         {
 471                 .name                   = "power:green",
 472                 .gpio                   = 8,
 473                 .active_low             = 1,
 474                 .default_trigger        = "default-on",
 475         },
 476         {
 477                 .name                   = "ethernet",
 478                 .gpio                   = 10,
 479                 .active_low             = 1,
 480         },
 481 };
 482
 483 static struct gpio_led_platform_data ar7_led_data;
 484
 485 static struct platform_device ar7_gpio_leds = {
 486         .name = "leds-gpio",
 487         .dev = {
 488                 .platform_data = &ar7_led_data,
 489         }
 490 };
 491
 492 static void __init detect_leds(void)
 493 {
 494         char *prid, *usb_prod;
 495
 496         /* Default LEDs */
 497         ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
 498         ar7_led_data.leds = default_leds;
 499
 500         /* FIXME: the whole thing is unreliable */
 501         prid = prom_getenv("ProductID");
 502         usb_prod = prom_getenv("usb_prod");
 503
 504         /* If we can't get the product id from PROM, use the default LEDs */
 505         if (!prid)
 506                 return;
 507
 508         if (strstr(prid, "Fritz_Box_FON")) {
 509                 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
 510                 ar7_led_data.leds = fb_fon_leds;
 511         } else if (strstr(prid, "Fritz_Box_")) {
 512                 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
 513                 ar7_led_data.leds = fb_sl_leds;
 514         } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
 515                 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
 516                 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
 517                 ar7_led_data.leds = dsl502t_leds;
 518         } else if (strstr(prid, "DG834")) {
 519                 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
 520                 ar7_led_data.leds = dg834g_leds;
 521         } else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) {
 522                 ar7_led_data.num_leds = ARRAY_SIZE(titan_leds);
 523                 ar7_led_data.leds = titan_leds;
 524         } else if (strstr(prid, "GT701")) {
 525                 ar7_led_data.num_leds = ARRAY_SIZE(gt701_leds);
 526                 ar7_led_data.leds = gt701_leds;
 527         }
 528 }
 529
 530 /*****************************************************************************
 531  * Watchdog
 532  ****************************************************************************/
 533 static struct resource ar7_wdt_res = {
 534         .name           = "regs",
 535         .flags          = IORESOURCE_MEM,
 536         .start          = -1,   /* Filled at runtime */
 537         .end            = -1,   /* Filled at runtime */
 538 };
 539
 540 static struct platform_device ar7_wdt = {
 541         .name           = "ar7_wdt",
 542         .resource       = &ar7_wdt_res,
 543         .num_resources  = 1,
 544 };
 545
 546 /*****************************************************************************
 547  * Init
 548  ****************************************************************************/
 549 static int __init ar7_register_uarts(void)
 550 {
 551 #ifdef CONFIG_SERIAL_8250
 552         static struct uart_port uart_port __initdata;
 553         struct clk *bus_clk;
 554         int res;
 555
 556         memset(&uart_port, 0, sizeof(struct uart_port));
 557
 558         bus_clk = clk_get(NULL, "bus");
 559         if (IS_ERR(bus_clk))
 560                 panic("unable to get bus clk");
 561
 562         uart_port.type          = PORT_AR7;
 563         uart_port.uartclk       = clk_get_rate(bus_clk) / 2;
 564         uart_port.iotype        = UPIO_MEM32;
 565         uart_port.flags         = UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF;
 566         uart_port.regshift      = 2;
 567
 568         uart_port.line          = 0;
 569         uart_port.irq           = AR7_IRQ_UART0;
 570         uart_port.mapbase       = AR7_REGS_UART0;
 571         uart_port.membase       = ioremap(uart_port.mapbase, 256);
 572
 573         res = early_serial_setup(&uart_port);
 574         if (res)
 575                 return res;
 576
 577         /* Only TNETD73xx have a second serial port */
 578         if (ar7_has_second_uart()) {
 579                 uart_port.line          = 1;
 580                 uart_port.irq           = AR7_IRQ_UART1;
 581                 uart_port.mapbase       = UR8_REGS_UART1;
 582                 uart_port.membase       = ioremap(uart_port.mapbase, 256);
 583
 584                 res = early_serial_setup(&uart_port);
 585                 if (res)
 586                         return res;
 587         }
 588 #endif
 589
 590         return 0;
 591 }
 592
 593 static void __init titan_fixup_devices(void)
 594 {
 595         /* Set vlynq0 data */
 596         vlynq_low_data.reset_bit = 15;
 597         vlynq_low_data.gpio_bit = 14;
 598
 599         /* Set vlynq1 data */
 600         vlynq_high_data.reset_bit = 16;
 601         vlynq_high_data.gpio_bit = 7;
 602
 603         /* Set vlynq0 resources */
 604         vlynq_low_res[0].start = TITAN_REGS_VLYNQ0;
 605         vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff;
 606         vlynq_low_res[1].start = 33;
 607         vlynq_low_res[1].end = 33;
 608         vlynq_low_res[2].start = 0x0c000000;
 609         vlynq_low_res[2].end = 0x0fffffff;
 610         vlynq_low_res[3].start = 80;
 611         vlynq_low_res[3].end = 111;
 612
 613         /* Set vlynq1 resources */
 614         vlynq_high_res[0].start = TITAN_REGS_VLYNQ1;
 615         vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff;
 616         vlynq_high_res[1].start = 34;
 617         vlynq_high_res[1].end = 34;
 618         vlynq_high_res[2].start = 0x40000000;
 619         vlynq_high_res[2].end = 0x43ffffff;
 620         vlynq_high_res[3].start = 112;
 621         vlynq_high_res[3].end = 143;
 622
 623         /* Set cpmac0 data */
 624         cpmac_low_data.phy_mask = 0x40000000;
 625
 626         /* Set cpmac1 data */
 627         cpmac_high_data.phy_mask = 0x80000000;
 628
 629         /* Set cpmac0 resources */
 630         cpmac_low_res[0].start = TITAN_REGS_MAC0;
 631         cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff;
 632
 633         /* Set cpmac1 resources */
 634         cpmac_high_res[0].start = TITAN_REGS_MAC1;
 635         cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff;
 636 }
 637
 638 static int __init ar7_register_devices(void)
 639 {
 640         void __iomem *bootcr;
 641         u32 val;
 642         int res;
 643
 644         res = ar7_gpio_init();
 645         if (res)
 646                 pr_warn("unable to register gpios: %d\n", res);
 647
 648         res = ar7_register_uarts();
 649         if (res)
 650                 pr_err("unable to setup uart(s): %d\n", res);
 651
 652         res = platform_device_register(&physmap_flash);
 653         if (res)
 654                 pr_warn("unable to register physmap-flash: %d\n", res);
 655
 656         if (ar7_is_titan())
 657                 titan_fixup_devices();
 658
 659         ar7_device_disable(vlynq_low_data.reset_bit);
 660         res = platform_device_register(&vlynq_low);
 661         if (res)
 662                 pr_warn("unable to register vlynq-low: %d\n", res);
 663
 664         if (ar7_has_high_vlynq()) {
 665                 ar7_device_disable(vlynq_high_data.reset_bit);
 666                 res = platform_device_register(&vlynq_high);
 667                 if (res)
 668                         pr_warn("unable to register vlynq-high: %d\n", res);
 669         }
 670
 671         if (ar7_has_high_cpmac()) {
 672                 res = fixed_phy_add(PHY_POLL, cpmac_high.id,
 673                                     &fixed_phy_status);
 674                 if (!res) {
 675                         cpmac_get_mac(1, cpmac_high_data.dev_addr);
 676
 677                         res = platform_device_register(&cpmac_high);
 678                         if (res)
 679                                 pr_warn("unable to register cpmac-high: %d\n",
 680                                         res);
 681                 } else
 682                         pr_warn("unable to add cpmac-high phy: %d\n", res);
 683         } else
 684                 cpmac_low_data.phy_mask = 0xffffffff;
 685
 686         res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
 687         if (!res) {
 688                 cpmac_get_mac(0, cpmac_low_data.dev_addr);
 689                 res = platform_device_register(&cpmac_low);
 690                 if (res)
 691                         pr_warn("unable to register cpmac-low: %d\n", res);
 692         } else
 693                 pr_warn("unable to add cpmac-low phy: %d\n", res);
 694
 695         detect_leds();
 696         res = platform_device_register(&ar7_gpio_leds);
 697         if (res)
 698                 pr_warn("unable to register leds: %d\n", res);
 699
 700         res = platform_device_register(&ar7_udc);
 701         if (res)
 702                 pr_warn("unable to register usb slave: %d\n", res);
 703
 704         /* Register watchdog only if enabled in hardware */
 705         bootcr = ioremap(AR7_REGS_DCL, 4);
 706         val = readl(bootcr);
 707         iounmap(bootcr);
 708         if (val & AR7_WDT_HW_ENA) {
 709                 if (ar7_has_high_vlynq())
 710                         ar7_wdt_res.start = UR8_REGS_WDT;
 711                 else
 712                         ar7_wdt_res.start = AR7_REGS_WDT;
 713
 714                 ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
 715                 res = platform_device_register(&ar7_wdt);
 716                 if (res)
 717                         pr_warn("unable to register watchdog: %d\n", res);
 718         }
 719
 720         return 0;
 721 }
 722 device_initcall(ar7_register_devices);