target/linux/ifxmips/files-2.6.32/arch/mips/ifxmips/danube/board.c

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  *
  12  *   You should have received a copy of the GNU General Public License
  13  *   along with this program; if not, write to the Free Software
  14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  15  *
  16  *   Copyright (C) 2007 John Crispin <blogic@openwrt.org>
  17  */
  18
  19 #include <linux/autoconf.h>
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/types.h>
  23 #include <linux/string.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/kernel.h>
  26 #include <linux/reboot.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/leds.h>
  29 #include <linux/etherdevice.h>
  30 #include <linux/reboot.h>
  31 #include <linux/time.h>
  32 #include <linux/io.h>
  33 #include <linux/gpio.h>
  34
  35 #include <asm/bootinfo.h>
  36 #include <asm/irq.h>
  37
  38 #include <ifxmips.h>
  39 #include <ifxmips_irq.h>
  40
  41 #define MAX_BOARD_NAME_LEN              32
  42 #define MAX_IFXMIPS_DEVS                9
  43
  44 #define SYSTEM_DANUBE                   "Danube"
  45 #define SYSTEM_DANUBE_CHIPID1   0x00129083
  46 #define SYSTEM_DANUBE_CHIPID2   0x0012B083
  47
  48 #define SYSTEM_TWINPASS                 "Twinpass"
  49 #define SYSTEM_TWINPASS_CHIPID  0x0012D083
  50
  51 enum {
  52         EASY50712,
  53         EASY4010,
  54         ARV4519,
  55         ARV452,
  56 };
  57
  58 extern int ifxmips_pci_external_clock;
  59 extern int ifxmips_pci_req_mask;
  60
  61 static unsigned int chiprev;
  62 static int cmdline_mac;
  63 char board_name[MAX_BOARD_NAME_LEN + 1] = { 0 };
  64
  65 struct ifxmips_board {
  66         int type;
  67         char name[32];
  68         unsigned int system_type;
  69         struct platform_device **devs;
  70         struct resource reset_resource;
  71         struct resource gpiodev_resource;
  72         struct gpio_led *ifxmips_leds;
  73         struct gpio_led *gpio_leds;
  74         int pci_external_clock;
  75         int pci_req_mask;
  76         int num_devs;
  77 };
  78
  79 DEFINE_SPINLOCK(ebu_lock);
  80 EXPORT_SYMBOL_GPL(ebu_lock);
  81
  82 extern unsigned char ifxmips_ethaddr[6];
  83 static int ifxmips_brn;
  84
  85 static struct gpio_led_platform_data ifxmips_led_data;
  86
  87 static struct platform_device ifxmips_led = {
  88         .id = 0,
  89         .name = "ifxmips_led",
  90         .dev = {
  91                 .platform_data = (void *) &ifxmips_led_data,
  92         }
  93 };
  94
  95 static struct platform_device ifxmips_gpio = {
  96         .id = 0,
  97         .name = "ifxmips_gpio",
  98         .num_resources = 1,
  99 };
 100
 101 static struct platform_device ifxmips_mii = {
 102         .id = 0,
 103         .name = "ifxmips_mii0",
 104         .dev = {
 105                 .platform_data = ifxmips_ethaddr,
 106         }
 107 };
 108
 109 static struct platform_device ifxmips_wdt = {
 110         .id = 0,
 111         .name = "ifxmips_wdt",
 112 };
 113
 114 static struct platform_device ifxmips_ebu = {
 115         .id = 0,
 116         .name = "ifxmips_ebu",
 117 };
 118
 119 static struct resource ifxmips_mtd_resource = {
 120         .start  = IFXMIPS_FLASH_START,
 121         .end    = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
 122         .flags  = IORESOURCE_MEM,
 123 };
 124
 125 static struct platform_device ifxmips_mtd = {
 126         .id = 0,
 127         .name = "ifxmips_mtd",
 128         .num_resources  = 1,
 129         .resource   = &ifxmips_mtd_resource,
 130 };
 131
 132 static struct platform_device ifxmips_gpio_dev = {
 133         .name     = "GPIODEV",
 134         .id     = -1,
 135         .num_resources    =     1,
 136 };
 137
 138 #ifdef CONFIG_LEDS_GPIO
 139 static struct gpio_led arv4519_gpio_leds[] = {
 140         { .name = "ifx:green:power", .gpio = 3, .active_low = 1, },
 141         { .name = "ifx:red:power", .gpio = 7, .active_low = 1, },
 142         { .name = "ifx:green:adsl", .gpio = 4, .active_low = 1, },
 143         { .name = "ifx:green:internet", .gpio = 5, .active_low = 1, },
 144         { .name = "ifx:red:internet", .gpio = 8, .active_low = 1, },
 145         { .name = "ifx:green:wlan", .gpio = 6, .active_low = 1, },
 146         { .name = "ifx:green:usbpwr", .gpio = 14, .active_low = 1, },
 147         { .name = "ifx:green:usb", .gpio = 19, .active_low = 1, },
 148 };
 149
 150 static struct gpio_led arv452_gpio_leds[] = {
 151         { .name = "ifx:blue:power", .gpio = 3, .active_low = 1, },
 152         { .name = "ifx:blue:adsl", .gpio = 4, .active_low = 1, },
 153         { .name = "ifx:blue:internet", .gpio = 5, .active_low = 1, },
 154         { .name = "ifx:red:power", .gpio = 6, .active_low = 1, },
 155         { .name = "ifx:yello:wps", .gpio = 7, .active_low = 1, },
 156         { .name = "ifx:red:wps", .gpio = 9, .active_low = 1, },
 157         { .name = "ifx:blue:voip", .gpio = 32, .active_low = 1, },
 158         { .name = "ifx:blue:fxs1", .gpio = 33, .active_low = 1, },
 159         { .name = "ifx:blue:fxs2", .gpio = 34, .active_low = 1, },
 160         { .name = "ifx:blue:fxo", .gpio = 35, .active_low = 1, },
 161         { .name = "ifx:blue:voice", .gpio = 36, .active_low = 1, },
 162         { .name = "ifx:blue:usb", .gpio = 37, .active_low = 1, },
 163         { .name = "ifx:blue:wlan", .gpio = 38, .active_low = 1, },
 164         { .name = "ifx:red:internet", .gpio = 41, .active_low = 1, },
 165 };
 166
 167 static struct gpio_led_platform_data ifxmips_gpio_led_data;
 168
 169 static struct platform_device ifxmips_gpio_leds = {
 170         .name = "leds-gpio",
 171         .id = -1,
 172         .dev = {
 173                 .platform_data = (void *) &ifxmips_gpio_led_data,
 174         }
 175 };
 176 #endif
 177
 178 static struct resource dwc_usb_res[] = {
 179         {
 180                 .name = "dwc3884_membase",
 181                 .flags = IORESOURCE_MEM,
 182                 .start = 0x1E101000,
 183                 .end = 0x1E101FFF
 184         },
 185         {
 186                 .name = "dwc3884_irq",
 187                 .flags = IORESOURCE_IRQ,
 188                 .start = IFXMIPS_USB_INT,
 189         }
 190 };
 191
 192 static struct platform_device dwc_usb =
 193 {
 194         .id = 0,
 195         .name = "dwc3884-hcd",
 196         .resource = dwc_usb_res,
 197         .num_resources = ARRAY_SIZE(dwc_usb_res),
 198 };
 199
 200 struct platform_device *easy50712_devs[] = {
 201         &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
 202         &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev, &dwc_usb
 203 };
 204
 205 struct platform_device *easy4010_devs[] = {
 206         &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
 207         &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev, &dwc_usb
 208 };
 209
 210 struct platform_device *arv5419_devs[] = {
 211         &ifxmips_gpio, &ifxmips_mii, &ifxmips_mtd,
 212         &ifxmips_gpio_dev, &ifxmips_wdt, &dwc_usb,
 213 #ifdef CONFIG_LEDS_GPIO
 214         &ifxmips_gpio_leds,
 215 #endif
 216 };
 217
 218 struct platform_device *arv452_devs[] = {
 219         &ifxmips_gpio, &ifxmips_mii, &ifxmips_mtd,
 220         &ifxmips_gpio_dev, &ifxmips_wdt, &dwc_usb,
 221         &ifxmips_ebu,
 222 #ifdef CONFIG_LEDS_GPIO
 223         &ifxmips_gpio_leds,
 224 #endif
 225 };
 226
 227 static struct gpio_led easy50712_leds[] = {
 228         { .name = "ifx:green:test0", .gpio = 0,},
 229         { .name = "ifx:green:test1", .gpio = 1,},
 230         { .name = "ifx:green:test2", .gpio = 2,},
 231         { .name = "ifx:green:test3", .gpio = 3,},
 232 };
 233
 234 static struct gpio_led easy4010_leds[] = {
 235         { .name = "ifx:green:test0", .gpio = 0,},
 236         { .name = "ifx:green:test1", .gpio = 1,},
 237         { .name = "ifx:green:test2", .gpio = 2,},
 238         { .name = "ifx:green:test3", .gpio = 3,},
 239 };
 240
 241 static struct ifxmips_board boards[] = {
 242         {
 243                 /* infineon eval kit */
 244                 .type = EASY50712,
 245                 .name = "EASY50712",
 246                 .system_type = SYSTEM_DANUBE_CHIPID1,
 247                 .devs = easy50712_devs,
 248                 .reset_resource = {.name = "reset", .start = 1, .end = 15,},
 249                 .gpiodev_resource = { .name = "gpio",
 250                         .start = (1 << 0) | (1 << 1),
 251                         .end = (1 << 0) | (1 << 1)},
 252                 .ifxmips_leds = easy50712_leds,
 253         }, {
 254                 /* infineon eval kit */
 255                 .type = EASY4010,
 256                 .name = "EASY4010",
 257                 .system_type = SYSTEM_TWINPASS_CHIPID,
 258                 .devs = easy4010_devs,
 259                 .reset_resource = {.name = "reset", .start = 1, .end = 15},
 260                 .gpiodev_resource = { .name = "gpio",
 261                         .start = (1 << 0) | (1 << 1),
 262                         .end = (1 << 0) | (1 << 1)},
 263                 .ifxmips_leds = easy4010_leds,
 264         }, {
 265                 /* arcaydian annex-a board used by thompson, airties, ... */
 266                 .type = ARV4519,
 267                 .name = "ARV4519",
 268                 .system_type = SYSTEM_DANUBE_CHIPID2,
 269                 .devs = arv5419_devs,
 270                 .reset_resource = {.name = "reset", .start = 1, .end = 14},
 271                 .pci_external_clock = 1,
 272 #ifdef CONFIG_LEDS_GPIO
 273                 .gpio_leds = arv4519_gpio_leds,
 274 #endif
 275         }, {
 276                 /* arcaydian annex-b board used by airties, arcor */
 277                 .type = ARV452,
 278                 .name = "ARV452",
 279                 .system_type = SYSTEM_DANUBE_CHIPID2,
 280                 .devs = arv452_devs,
 281                 .reset_resource = {.name = "reset", .start = 1, .end = 14},
 282                 .pci_external_clock = 1,
 283 #ifdef CONFIG_LEDS_GPIO
 284                 .gpio_leds = arv452_gpio_leds,
 285 #endif
 286         },
 287 };
 288
 289 const char *get_system_type(void)
 290 {
 291         chiprev = (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0x0FFFFFFF);
 292
 293         switch (chiprev) {
 294         case SYSTEM_DANUBE_CHIPID1:
 295         case SYSTEM_DANUBE_CHIPID2:
 296                 return SYSTEM_DANUBE;
 297
 298         case SYSTEM_TWINPASS_CHIPID:
 299                 return SYSTEM_TWINPASS;
 300         }
 301
 302         return BOARD_SYSTEM_TYPE;
 303 }
 304
 305 static int __init ifxmips_set_board_type(char *str)
 306 {
 307         str = strchr(str, '=');
 308         if (!str)
 309                 goto out;
 310         str++;
 311         if (strlen(str) > MAX_BOARD_NAME_LEN)
 312                 goto out;
 313         strncpy(board_name, str, MAX_BOARD_NAME_LEN);
 314         printk(KERN_INFO "bootloader told us, that this is a %s board\n",
 315                 board_name);
 316 out:
 317         return 1;
 318 }
 319 __setup("ifxmips_board", ifxmips_set_board_type);
 320
 321 static int __init ifxmips_set_ethaddr(char *str)
 322 {
 323 #define IS_HEX(x) \
 324         (((x >= '0' && x <= '9') || (x >= 'a' && x <= 'f') \
 325                 || (x >= 'A' && x <= 'F')) ? (1) : (0))
 326         int i;
 327         str = strchr(str, '=');
 328         if (!str)
 329                 goto out;
 330         str++;
 331         if (strlen(str) != 17)
 332                 goto out;
 333         for (i = 0; i < 6; i++) {
 334                 if (!IS_HEX(str[3 * i]) || !IS_HEX(str[(3 * i) + 1]))
 335                         goto out;
 336                 if ((i != 5) && (str[(3 * i) + 2] != ':'))
 337                         goto out;
 338                 ifxmips_ethaddr[i] = simple_strtoul(&str[3 * i], NULL, 16);
 339         }
 340         if (is_valid_ether_addr(ifxmips_ethaddr))
 341                 cmdline_mac = 1;
 342 out:
 343         return 1;
 344 }
 345 __setup("ethaddr", ifxmips_set_ethaddr);
 346
 347 int ifxmips_find_brn_block(void)
 348 {
 349         unsigned char temp[8];
 350         memcpy_fromio(temp,
 351                 (void *)KSEG1ADDR(IFXMIPS_FLASH_START + 0x800000 - 0x10000), 8);
 352         if (memcmp(temp, "BRN-BOOT", 8) == 0) {
 353                 if (!cmdline_mac)
 354                         memcpy_fromio(ifxmips_ethaddr,
 355                                 (void *)KSEG1ADDR(IFXMIPS_FLASH_START +
 356                                         0x800000 - 0x10000 + 0x16), 6);
 357                 if (is_valid_ether_addr(ifxmips_ethaddr))
 358                         cmdline_mac = 1;
 359                 return 1;
 360         } else {
 361                 return 0;
 362         }
 363 }
 364
 365 int ifxmips_has_brn_block(void)
 366 {
 367         return ifxmips_brn;
 368 }
 369 EXPORT_SYMBOL(ifxmips_has_brn_block);
 370
 371 struct ifxmips_board *ifxmips_find_board(void)
 372 {
 373         int i;
 374         if (!*board_name)
 375                 return 0;
 376         for (i = 0; i < ARRAY_SIZE(boards); i++)
 377                 if ((boards[i].system_type == chiprev) &&
 378                     (!strcmp(boards[i].name, board_name)))
 379                         return &boards[i];
 380         return 0;
 381 }
 382
 383 int __init ifxmips_init_devices(void)
 384 {
 385         struct ifxmips_board *board;
 386
 387         chiprev = (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0x0FFFFFFF);
 388         board = ifxmips_find_board();
 389         ifxmips_brn = ifxmips_find_brn_block();
 390
 391         if (!cmdline_mac)
 392                 random_ether_addr(ifxmips_ethaddr);
 393
 394         if (!board) {
 395                 switch (chiprev) {
 396                 case SYSTEM_DANUBE_CHIPID1:
 397                 case SYSTEM_DANUBE_CHIPID2:
 398                 default:
 399                         board = &boards[0];
 400                         break;
 401                 case SYSTEM_TWINPASS_CHIPID:
 402                         board = &boards[1];
 403                         break;
 404                 }
 405         }
 406
 407         switch (board->type) {
 408         case EASY50712:
 409                 board->num_devs = ARRAY_SIZE(easy50712_devs);
 410                 ifxmips_led_data.num_leds = ARRAY_SIZE(easy50712_leds);
 411                 break;
 412         case EASY4010:
 413                 board->num_devs = ARRAY_SIZE(easy4010_devs);
 414                 ifxmips_led_data.num_leds = ARRAY_SIZE(easy4010_leds);
 415                 break;
 416         case ARV4519:
 417                 /* set some sane defaults for the gpios */
 418                 gpio_set_value(3, 0);
 419                 gpio_set_value(4, 0);
 420                 gpio_set_value(5, 0);
 421                 gpio_set_value(6, 0);
 422                 gpio_set_value(7, 1);
 423                 gpio_set_value(8, 1);
 424                 gpio_set_value(19, 0);
 425                 board->num_devs = ARRAY_SIZE(arv5419_devs);
 426 #ifdef CONFIG_LEDS_GPIO
 427                 ifxmips_gpio_led_data.num_leds = ARRAY_SIZE(arv4519_gpio_leds);
 428 #endif
 429                 break;
 430         case ARV452:
 431                 /* set some sane defaults for the gpios */
 432                 board->num_devs = ARRAY_SIZE(arv452_devs);
 433                 ifxmips_w32(0x8001e7ff, IFXMIPS_EBU_BUSCON1);
 434 #ifdef CONFIG_LEDS_GPIO
 435                 ifxmips_gpio_led_data.num_leds = ARRAY_SIZE(arv452_gpio_leds);
 436 #endif
 437                 break;
 438         }
 439 #ifdef CONFIG_LEDS_GPIO
 440         ifxmips_gpio_led_data.leds = board->gpio_leds;
 441 #endif
 442         ifxmips_led_data.leds = board->ifxmips_leds;
 443
 444         printk(KERN_INFO "%s: adding %d devs\n",
 445                 __func__, board->num_devs);
 446
 447         ifxmips_gpio.resource = &board->reset_resource;
 448         ifxmips_gpio_dev.resource = &board->gpiodev_resource;
 449         if (board->pci_external_clock)
 450                 ifxmips_pci_external_clock = 1;
 451         if (board->pci_req_mask)
 452                 ifxmips_pci_req_mask = board->pci_req_mask;
 453         printk(KERN_INFO "using board definition %s\n", board->name);
 454         return platform_add_devices(board->devs, board->num_devs);
 455 }
 456
 457 arch_initcall(ifxmips_init_devices);