arch/mips/ar7/platform.c

   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
  36 #include <asm/addrspace.h>
  37 #include <asm/mach-ar7/ar7.h>
  38 #include <asm/mach-ar7/gpio.h>
  39 #include <asm/mach-ar7/prom.h>
  40
  41 struct plat_vlynq_data {
  42         struct plat_vlynq_ops ops;
  43         int gpio_bit;
  44         int reset_bit;
  45 };
  46
  47
  48 static int vlynq_on(struct vlynq_device *dev)
  49 {
  50         int result;
  51         struct plat_vlynq_data *pdata = dev->dev.platform_data;
  52
  53         result = gpio_request(pdata->gpio_bit, "vlynq");
  54         if (result)
  55                 goto out;
  56
  57         ar7_device_reset(pdata->reset_bit);
  58
  59         result = ar7_gpio_disable(pdata->gpio_bit);
  60         if (result)
  61                 goto out_enabled;
  62
  63         result = ar7_gpio_enable(pdata->gpio_bit);
  64         if (result)
  65                 goto out_enabled;
  66
  67         result = gpio_direction_output(pdata->gpio_bit, 0);
  68         if (result)
  69                 goto out_gpio_enabled;
  70
  71         msleep(50);
  72
  73         gpio_set_value(pdata->gpio_bit, 1);
  74         msleep(50);
  75
  76         return 0;
  77
  78 out_gpio_enabled:
  79         ar7_gpio_disable(pdata->gpio_bit);
  80 out_enabled:
  81         ar7_device_disable(pdata->reset_bit);
  82         gpio_free(pdata->gpio_bit);
  83 out:
  84         return result;
  85 }
  86
  87 static void vlynq_off(struct vlynq_device *dev)
  88 {
  89         struct plat_vlynq_data *pdata = dev->dev.platform_data;
  90         ar7_gpio_disable(pdata->gpio_bit);
  91         gpio_free(pdata->gpio_bit);
  92         ar7_device_disable(pdata->reset_bit);
  93 }
  94
  95 static struct resource physmap_flash_resource = {
  96         .name = "mem",
  97         .flags = IORESOURCE_MEM,
  98         .start = 0x10000000,
  99         .end = 0x107fffff,
 100 };
 101
 102 static struct resource cpmac_low_res[] = {
 103         {
 104                 .name = "regs",
 105                 .flags = IORESOURCE_MEM,
 106                 .start = AR7_REGS_MAC0,
 107                 .end = AR7_REGS_MAC0 + 0x7ff,
 108         },
 109         {
 110                 .name = "irq",
 111                 .flags = IORESOURCE_IRQ,
 112                 .start = 27,
 113                 .end = 27,
 114         },
 115 };
 116
 117 static struct resource cpmac_high_res[] = {
 118         {
 119                 .name = "regs",
 120                 .flags = IORESOURCE_MEM,
 121                 .start = AR7_REGS_MAC1,
 122                 .end = AR7_REGS_MAC1 + 0x7ff,
 123         },
 124         {
 125                 .name = "irq",
 126                 .flags = IORESOURCE_IRQ,
 127                 .start = 41,
 128                 .end = 41,
 129         },
 130 };
 131
 132 static struct resource vlynq_low_res[] = {
 133         {
 134                 .name = "regs",
 135                 .flags = IORESOURCE_MEM,
 136                 .start = AR7_REGS_VLYNQ0,
 137                 .end = AR7_REGS_VLYNQ0 + 0xff,
 138         },
 139         {
 140                 .name = "irq",
 141                 .flags = IORESOURCE_IRQ,
 142                 .start = 29,
 143                 .end = 29,
 144         },
 145         {
 146                 .name = "mem",
 147                 .flags = IORESOURCE_MEM,
 148                 .start = 0x04000000,
 149                 .end = 0x04ffffff,
 150         },
 151         {
 152                 .name = "devirq",
 153                 .flags = IORESOURCE_IRQ,
 154                 .start = 80,
 155                 .end = 111,
 156         },
 157 };
 158
 159 static struct resource vlynq_high_res[] = {
 160         {
 161                 .name = "regs",
 162                 .flags = IORESOURCE_MEM,
 163                 .start = AR7_REGS_VLYNQ1,
 164                 .end = AR7_REGS_VLYNQ1 + 0xff,
 165         },
 166         {
 167                 .name = "irq",
 168                 .flags = IORESOURCE_IRQ,
 169                 .start = 33,
 170                 .end = 33,
 171         },
 172         {
 173                 .name = "mem",
 174                 .flags = IORESOURCE_MEM,
 175                 .start = 0x0c000000,
 176                 .end = 0x0cffffff,
 177         },
 178         {
 179                 .name = "devirq",
 180                 .flags = IORESOURCE_IRQ,
 181                 .start = 112,
 182                 .end = 143,
 183         },
 184 };
 185
 186 static struct resource usb_res[] = {
 187         {
 188                 .name = "regs",
 189                 .flags = IORESOURCE_MEM,
 190                 .start = AR7_REGS_USB,
 191                 .end = AR7_REGS_USB + 0xff,
 192         },
 193         {
 194                 .name = "irq",
 195                 .flags = IORESOURCE_IRQ,
 196                 .start = 32,
 197                 .end = 32,
 198         },
 199         {
 200                 .name = "mem",
 201                 .flags = IORESOURCE_MEM,
 202                 .start = 0x03400000,
 203                 .end = 0x034001fff,
 204         },
 205 };
 206
 207 static struct physmap_flash_data physmap_flash_data = {
 208         .width = 2,
 209 };
 210
 211 static struct plat_cpmac_data cpmac_low_data = {
 212         .reset_bit = 17,
 213         .power_bit = 20,
 214         .phy_mask = 0x80000000,
 215 };
 216
 217 static struct plat_cpmac_data cpmac_high_data = {
 218         .reset_bit = 21,
 219         .power_bit = 22,
 220         .phy_mask = 0x7fffffff,
 221 };
 222
 223 static struct plat_vlynq_data vlynq_low_data = {
 224         .ops.on = vlynq_on,
 225         .ops.off = vlynq_off,
 226         .reset_bit = 20,
 227         .gpio_bit = 18,
 228 };
 229
 230 static struct plat_vlynq_data vlynq_high_data = {
 231         .ops.on = vlynq_on,
 232         .ops.off = vlynq_off,
 233         .reset_bit = 16,
 234         .gpio_bit = 19,
 235 };
 236
 237 static struct platform_device physmap_flash = {
 238         .id = 0,
 239         .name = "physmap-flash",
 240         .dev.platform_data = &physmap_flash_data,
 241         .resource = &physmap_flash_resource,
 242         .num_resources = 1,
 243 };
 244
 245 static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
 246 static struct platform_device cpmac_low = {
 247         .id = 0,
 248         .name = "cpmac",
 249         .dev = {
 250                 .dma_mask = &cpmac_dma_mask,
 251                 .coherent_dma_mask = DMA_BIT_MASK(32),
 252                 .platform_data = &cpmac_low_data,
 253         },
 254         .resource = cpmac_low_res,
 255         .num_resources = ARRAY_SIZE(cpmac_low_res),
 256 };
 257
 258 static struct platform_device cpmac_high = {
 259         .id = 1,
 260         .name = "cpmac",
 261         .dev = {
 262                 .dma_mask = &cpmac_dma_mask,
 263                 .coherent_dma_mask = DMA_BIT_MASK(32),
 264                 .platform_data = &cpmac_high_data,
 265         },
 266         .resource = cpmac_high_res,
 267         .num_resources = ARRAY_SIZE(cpmac_high_res),
 268 };
 269
 270 static struct platform_device vlynq_low = {
 271         .id = 0,
 272         .name = "vlynq",
 273         .dev.platform_data = &vlynq_low_data,
 274         .resource = vlynq_low_res,
 275         .num_resources = ARRAY_SIZE(vlynq_low_res),
 276 };
 277
 278 static struct platform_device vlynq_high = {
 279         .id = 1,
 280         .name = "vlynq",
 281         .dev.platform_data = &vlynq_high_data,
 282         .resource = vlynq_high_res,
 283         .num_resources = ARRAY_SIZE(vlynq_high_res),
 284 };
 285
 286
 287 static struct gpio_led default_leds[] = {
 288         {
 289                 .name = "status",
 290                 .gpio = 8,
 291                 .active_low = 1,
 292         },
 293 };
 294
 295 static struct gpio_led dsl502t_leds[] = {
 296         {
 297                 .name = "status",
 298                 .gpio = 9,
 299                 .active_low = 1,
 300         },
 301         {
 302                 .name = "ethernet",
 303                 .gpio = 7,
 304                 .active_low = 1,
 305         },
 306         {
 307                 .name = "usb",
 308                 .gpio = 12,
 309                 .active_low = 1,
 310         },
 311 };
 312
 313 static struct gpio_led dg834g_leds[] = {
 314         {
 315                 .name = "ppp",
 316                 .gpio = 6,
 317                 .active_low = 1,
 318         },
 319         {
 320                 .name = "status",
 321                 .gpio = 7,
 322                 .active_low = 1,
 323         },
 324         {
 325                 .name = "adsl",
 326                 .gpio = 8,
 327                 .active_low = 1,
 328         },
 329         {
 330                 .name = "wifi",
 331                 .gpio = 12,
 332                 .active_low = 1,
 333         },
 334         {
 335                 .name = "power",
 336                 .gpio = 14,
 337                 .active_low = 1,
 338                 .default_trigger = "default-on",
 339         },
 340 };
 341
 342 static struct gpio_led fb_sl_leds[] = {
 343         {
 344                 .name = "1",
 345                 .gpio = 7,
 346         },
 347         {
 348                 .name = "2",
 349                 .gpio = 13,
 350                 .active_low = 1,
 351         },
 352         {
 353                 .name = "3",
 354                 .gpio = 10,
 355                 .active_low = 1,
 356         },
 357         {
 358                 .name = "4",
 359                 .gpio = 12,
 360                 .active_low = 1,
 361         },
 362         {
 363                 .name = "5",
 364                 .gpio = 9,
 365                 .active_low = 1,
 366         },
 367 };
 368
 369 static struct gpio_led fb_fon_leds[] = {
 370         {
 371                 .name = "1",
 372                 .gpio = 8,
 373         },
 374         {
 375                 .name = "2",
 376                 .gpio = 3,
 377                 .active_low = 1,
 378         },
 379         {
 380                 .name = "3",
 381                 .gpio = 5,
 382         },
 383         {
 384                 .name = "4",
 385                 .gpio = 4,
 386                 .active_low = 1,
 387         },
 388         {
 389                 .name = "5",
 390                 .gpio = 11,
 391                 .active_low = 1,
 392         },
 393 };
 394
 395 static struct gpio_led_platform_data ar7_led_data;
 396
 397 static struct platform_device ar7_gpio_leds = {
 398         .name = "leds-gpio",
 399         .id = -1,
 400         .dev = {
 401                 .platform_data = &ar7_led_data,
 402         }
 403 };
 404
 405 static struct platform_device ar7_udc = {
 406         .id = -1,
 407         .name = "ar7_udc",
 408         .resource = usb_res,
 409         .num_resources = ARRAY_SIZE(usb_res),
 410 };
 411
 412 static inline unsigned char char2hex(char h)
 413 {
 414         switch (h) {
 415         case '0': case '1': case '2': case '3': case '4':
 416         case '5': case '6': case '7': case '8': case '9':
 417                 return h - '0';
 418         case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
 419                 return h - 'A' + 10;
 420         case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
 421                 return h - 'a' + 10;
 422         default:
 423                 return 0;
 424         }
 425 }
 426
 427 static void cpmac_get_mac(int instance, unsigned char *dev_addr)
 428 {
 429         int i;
 430         char name[5], default_mac[ETH_ALEN], *mac;
 431
 432         mac = NULL;
 433         sprintf(name, "mac%c", 'a' + instance);
 434         mac = prom_getenv(name);
 435         if (!mac) {
 436                 sprintf(name, "mac%c", 'a');
 437                 mac = prom_getenv(name);
 438         }
 439         if (!mac) {
 440                 random_ether_addr(default_mac);
 441                 mac = default_mac;
 442         }
 443         for (i = 0; i < 6; i++)
 444                 dev_addr[i] = (char2hex(mac[i * 3]) << 4) +
 445                         char2hex(mac[i * 3 + 1]);
 446 }
 447
 448 static void __init detect_leds(void)
 449 {
 450         char *prid, *usb_prod;
 451
 452         /* Default LEDs */
 453         ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
 454         ar7_led_data.leds = default_leds;
 455
 456         /* FIXME: the whole thing is unreliable */
 457         prid = prom_getenv("ProductID");
 458         usb_prod = prom_getenv("usb_prod");
 459
 460         /* If we can't get the product id from PROM, use the default LEDs */
 461         if (!prid)
 462                 return;
 463
 464         if (strstr(prid, "Fritz_Box_FON")) {
 465                 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
 466                 ar7_led_data.leds = fb_fon_leds;
 467         } else if (strstr(prid, "Fritz_Box_")) {
 468                 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
 469                 ar7_led_data.leds = fb_sl_leds;
 470         } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
 471                 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
 472                 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
 473                 ar7_led_data.leds = dsl502t_leds;
 474         } else if (strstr(prid, "DG834")) {
 475                 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
 476                 ar7_led_data.leds = dg834g_leds;
 477         }
 478 }
 479
 480 static int __init ar7_register_devices(void)
 481 {
 482         int res;
 483 #ifdef CONFIG_SERIAL_8250
 484         static struct uart_port uart_port[2];
 485
 486         memset(uart_port, 0, sizeof(struct uart_port) * 2);
 487
 488         uart_port[0].type = PORT_16550A;
 489         uart_port[0].line = 0;
 490         uart_port[0].irq = AR7_IRQ_UART0;
 491         uart_port[0].uartclk = ar7_bus_freq() / 2;
 492         uart_port[0].iotype = UPIO_MEM32;
 493         uart_port[0].mapbase = AR7_REGS_UART0;
 494         uart_port[0].membase = ioremap(uart_port[0].mapbase, 256);
 495         uart_port[0].regshift = 2;
 496         res = early_serial_setup(&uart_port[0]);
 497         if (res)
 498                 return res;
 499
 500
 501         /* Only TNETD73xx have a second serial port */
 502         if (ar7_has_second_uart()) {
 503                 uart_port[1].type = PORT_16550A;
 504                 uart_port[1].line = 1;
 505                 uart_port[1].irq = AR7_IRQ_UART1;
 506                 uart_port[1].uartclk = ar7_bus_freq() / 2;
 507                 uart_port[1].iotype = UPIO_MEM32;
 508                 uart_port[1].mapbase = UR8_REGS_UART1;
 509                 uart_port[1].membase = ioremap(uart_port[1].mapbase, 256);
 510                 uart_port[1].regshift = 2;
 511                 res = early_serial_setup(&uart_port[1]);
 512                 if (res)
 513                         return res;
 514         }
 515 #endif /* CONFIG_SERIAL_8250 */
 516         res = platform_device_register(&physmap_flash);
 517         if (res)
 518                 return res;
 519
 520         ar7_device_disable(vlynq_low_data.reset_bit);
 521         res = platform_device_register(&vlynq_low);
 522         if (res)
 523                 return res;
 524
 525         if (ar7_has_high_vlynq()) {
 526                 ar7_device_disable(vlynq_high_data.reset_bit);
 527                 res = platform_device_register(&vlynq_high);
 528                 if (res)
 529                         return res;
 530         }
 531
 532         if (ar7_has_high_cpmac()) {
 533                 cpmac_get_mac(1, cpmac_high_data.dev_addr);
 534                 res = platform_device_register(&cpmac_high);
 535                 if (res)
 536                         return res;
 537         } else {
 538                 cpmac_low_data.phy_mask = 0xffffffff;
 539         }
 540
 541         cpmac_get_mac(0, cpmac_low_data.dev_addr);
 542         res = platform_device_register(&cpmac_low);
 543         if (res)
 544                 return res;
 545
 546         detect_leds();
 547         res = platform_device_register(&ar7_gpio_leds);
 548         if (res)
 549                 return res;
 550
 551         res = platform_device_register(&ar7_udc);
 552
 553         return res;
 554 }
 555 arch_initcall(ar7_register_devices);