| 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 | }; |
| 56 | |
| 57 | extern int ifxmips_pci_external_clock; |
| 58 | extern int ifxmips_pci_req_mask; |
| 59 | |
| 60 | static unsigned int chiprev; |
| 61 | static int cmdline_mac; |
| 62 | char board_name[MAX_BOARD_NAME_LEN + 1] = { 0 }; |
| 63 | |
| 64 | struct ifxmips_board { |
| 65 | int type; |
| 66 | char name[32]; |
| 67 | unsigned int system_type; |
| 68 | struct platform_device **devs; |
| 69 | struct resource reset_resource; |
| 70 | struct resource gpiodev_resource; |
| 71 | struct gpio_led *ifxmips_leds; |
| 72 | struct gpio_led *gpio_leds; |
| 73 | int pci_external_clock; |
| 74 | int pci_req_mask; |
| 75 | int num_devs; |
| 76 | }; |
| 77 | |
| 78 | DEFINE_SPINLOCK(ebu_lock); |
| 79 | EXPORT_SYMBOL_GPL(ebu_lock); |
| 80 | |
| 81 | static unsigned char ifxmips_ethaddr[6]; |
| 82 | static int ifxmips_brn; |
| 83 | |
| 84 | static struct gpio_led_platform_data ifxmips_led_data; |
| 85 | |
| 86 | static struct platform_device ifxmips_led = { |
| 87 | .id = 0, |
| 88 | .name = "ifxmips_led", |
| 89 | .dev = { |
| 90 | .platform_data = (void *) &ifxmips_led_data, |
| 91 | } |
| 92 | }; |
| 93 | |
| 94 | static struct platform_device ifxmips_gpio = { |
| 95 | .id = 0, |
| 96 | .name = "ifxmips_gpio", |
| 97 | .num_resources = 1, |
| 98 | }; |
| 99 | |
| 100 | static struct platform_device ifxmips_mii = { |
| 101 | .id = 0, |
| 102 | .name = "ifxmips_mii0", |
| 103 | .dev = { |
| 104 | .platform_data = ifxmips_ethaddr, |
| 105 | } |
| 106 | }; |
| 107 | |
| 108 | static struct platform_device ifxmips_wdt = { |
| 109 | .id = 0, |
| 110 | .name = "ifxmips_wdt", |
| 111 | }; |
| 112 | |
| 113 | static struct resource ifxmips_mtd_resource = { |
| 114 | .start = IFXMIPS_FLASH_START, |
| 115 | .end = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1, |
| 116 | .flags = IORESOURCE_MEM, |
| 117 | }; |
| 118 | |
| 119 | static struct platform_device ifxmips_mtd = { |
| 120 | .id = 0, |
| 121 | .name = "ifxmips_mtd", |
| 122 | .num_resources = 1, |
| 123 | .resource = &ifxmips_mtd_resource, |
| 124 | }; |
| 125 | |
| 126 | static struct platform_device ifxmips_gpio_dev = { |
| 127 | .name = "GPIODEV", |
| 128 | .id = -1, |
| 129 | .num_resources = 1, |
| 130 | }; |
| 131 | |
| 132 | #ifdef CONFIG_LEDS_GPIO |
| 133 | static struct gpio_led arv4519_gpio_leds[] = { |
| 134 | { .name = "ifx:green:power", .gpio = 3, .active_low = 1, }, |
| 135 | { .name = "ifx:red:power", .gpio = 7, .active_low = 1, }, |
| 136 | { .name = "ifx:green:adsl", .gpio = 4, .active_low = 1, }, |
| 137 | { .name = "ifx:green:internet", .gpio = 5, .active_low = 1, }, |
| 138 | { .name = "ifx:red:internet", .gpio = 8, .active_low = 1, }, |
| 139 | { .name = "ifx:green:wlan", .gpio = 6, .active_low = 1, }, |
| 140 | { .name = "ifx:green:usbpwr", .gpio = 14, .active_low = 1, }, |
| 141 | { .name = "ifx:green:usb", .gpio = 19, .active_low = 1, }, |
| 142 | }; |
| 143 | |
| 144 | static struct gpio_led_platform_data ifxmips_gpio_led_data; |
| 145 | |
| 146 | static struct platform_device ifxmips_gpio_leds = { |
| 147 | .name = "leds-gpio", |
| 148 | .id = -1, |
| 149 | .dev = { |
| 150 | .platform_data = (void *) &ifxmips_gpio_led_data, |
| 151 | } |
| 152 | }; |
| 153 | #endif |
| 154 | |
| 155 | static struct resource dwc_usb_res[] = { |
| 156 | { |
| 157 | .name = "dwc_usb_membase", |
| 158 | .flags = IORESOURCE_MEM, |
| 159 | .start = 0x1E101000, |
| 160 | .end = 0x1E101FFF |
| 161 | }, |
| 162 | { |
| 163 | .name = "dwc_usb_irq", |
| 164 | .flags = IORESOURCE_IRQ, |
| 165 | .start = IFXMIPS_USB_INT, |
| 166 | } |
| 167 | }; |
| 168 | |
| 169 | static struct platform_device dwc_usb = |
| 170 | { |
| 171 | .id = 0, |
| 172 | .name = "dwc_usb", |
| 173 | .resource = dwc_usb_res, |
| 174 | .num_resources = ARRAY_SIZE(dwc_usb_res), |
| 175 | }; |
| 176 | |
| 177 | struct platform_device *easy50712_devs[] = { |
| 178 | &ifxmips_led, &ifxmips_gpio, &ifxmips_mii, |
| 179 | &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev, &dwc_usb |
| 180 | }; |
| 181 | |
| 182 | struct platform_device *easy4010_devs[] = { |
| 183 | &ifxmips_led, &ifxmips_gpio, &ifxmips_mii, |
| 184 | &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev, &dwc_usb |
| 185 | }; |
| 186 | |
| 187 | struct platform_device *arv5419_devs[] = { |
| 188 | &ifxmips_gpio, &ifxmips_mii, &ifxmips_mtd, |
| 189 | &ifxmips_gpio_dev, &ifxmips_wdt, &dwc_usb, |
| 190 | #ifdef CONFIG_LEDS_GPIO |
| 191 | &ifxmips_gpio_leds, |
| 192 | #endif |
| 193 | }; |
| 194 | |
| 195 | static struct gpio_led easy50712_leds[] = { |
| 196 | { .name = "ifx:green:test0", .gpio = 0,}, |
| 197 | { .name = "ifx:green:test1", .gpio = 1,}, |
| 198 | { .name = "ifx:green:test2", .gpio = 2,}, |
| 199 | { .name = "ifx:green:test3", .gpio = 3,}, |
| 200 | }; |
| 201 | |
| 202 | static struct gpio_led easy4010_leds[] = { |
| 203 | { .name = "ifx:green:test0", .gpio = 0,}, |
| 204 | { .name = "ifx:green:test1", .gpio = 1,}, |
| 205 | { .name = "ifx:green:test2", .gpio = 2,}, |
| 206 | { .name = "ifx:green:test3", .gpio = 3,}, |
| 207 | }; |
| 208 | |
| 209 | static struct ifxmips_board boards[] = { |
| 210 | { |
| 211 | /* infineon eval kit */ |
| 212 | .type = EASY50712, |
| 213 | .name = "EASY50712", |
| 214 | .system_type = SYSTEM_DANUBE_CHIPID1, |
| 215 | .devs = easy50712_devs, |
| 216 | .reset_resource = {.name = "reset", .start = 1, .end = 15,}, |
| 217 | .gpiodev_resource = { .name = "gpio", |
| 218 | .start = (1 << 0) | (1 << 1), |
| 219 | .end = (1 << 0) | (1 << 1)}, |
| 220 | .ifxmips_leds = easy50712_leds, |
| 221 | }, { |
| 222 | /* infineon eval kit */ |
| 223 | .type = EASY4010, |
| 224 | .name = "EASY4010", |
| 225 | .system_type = SYSTEM_TWINPASS_CHIPID, |
| 226 | .devs = easy4010_devs, |
| 227 | .reset_resource = {.name = "reset", .start = 1, .end = 15}, |
| 228 | .gpiodev_resource = { .name = "gpio", |
| 229 | .start = (1 << 0) | (1 << 1), |
| 230 | .end = (1 << 0) | (1 << 1)}, |
| 231 | .ifxmips_leds = easy4010_leds, |
| 232 | }, { |
| 233 | /* arcaydian annex-a board used by thompson, airties, ... */ |
| 234 | .type = ARV4519, |
| 235 | .name = "ARV4519", |
| 236 | .system_type = SYSTEM_DANUBE_CHIPID2, |
| 237 | .devs = arv5419_devs, |
| 238 | .reset_resource = {.name = "reset", .start = 1, .end = 14}, |
| 239 | .pci_external_clock = 1, |
| 240 | .gpio_leds = arv4519_gpio_leds, |
| 241 | }, |
| 242 | }; |
| 243 | |
| 244 | const char *get_system_type(void) |
| 245 | { |
| 246 | chiprev = (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0x0FFFFFFF); |
| 247 | |
| 248 | switch (chiprev) { |
| 249 | case SYSTEM_DANUBE_CHIPID1: |
| 250 | case SYSTEM_DANUBE_CHIPID2: |
| 251 | return SYSTEM_DANUBE; |
| 252 | |
| 253 | case SYSTEM_TWINPASS_CHIPID: |
| 254 | return SYSTEM_TWINPASS; |
| 255 | } |
| 256 | |
| 257 | return BOARD_SYSTEM_TYPE; |
| 258 | } |
| 259 | |
| 260 | static int __init ifxmips_set_board_type(char *str) |
| 261 | { |
| 262 | str = strchr(str, '='); |
| 263 | if (!str) |
| 264 | goto out; |
| 265 | str++; |
| 266 | if (strlen(str) > MAX_BOARD_NAME_LEN) |
| 267 | goto out; |
| 268 | strncpy(board_name, str, MAX_BOARD_NAME_LEN); |
| 269 | printk(KERN_INFO "bootloader told us, that this is a %s board\n", |
| 270 | board_name); |
| 271 | out: |
| 272 | return 1; |
| 273 | } |
| 274 | __setup("ifxmips_board", ifxmips_set_board_type); |
| 275 | |
| 276 | static int __init ifxmips_set_ethaddr(char *str) |
| 277 | { |
| 278 | #define IS_HEX(x) \ |
| 279 | (((x >= '0' && x <= '9') || (x >= 'a' && x <= 'f') \ |
| 280 | || (x >= 'A' && x <= 'F')) ? (1) : (0)) |
| 281 | int i; |
| 282 | str = strchr(str, '='); |
| 283 | if (!str) |
| 284 | goto out; |
| 285 | str++; |
| 286 | if (strlen(str) != 17) |
| 287 | goto out; |
| 288 | for (i = 0; i < 6; i++) { |
| 289 | if (!IS_HEX(str[3 * i]) || !IS_HEX(str[(3 * i) + 1])) |
| 290 | goto out; |
| 291 | if ((i != 5) && (str[(3 * i) + 2] != ':')) |
| 292 | goto out; |
| 293 | ifxmips_ethaddr[i] = simple_strtoul(&str[3 * i], NULL, 16); |
| 294 | } |
| 295 | if (is_valid_ether_addr(ifxmips_ethaddr)) |
| 296 | cmdline_mac = 1; |
| 297 | out: |
| 298 | return 1; |
| 299 | } |
| 300 | __setup("ethaddr", ifxmips_set_ethaddr); |
| 301 | |
| 302 | int ifxmips_find_brn_block(void) |
| 303 | { |
| 304 | unsigned char temp[8]; |
| 305 | memcpy_fromio(temp, |
| 306 | (void *)KSEG1ADDR(IFXMIPS_FLASH_START + 0x800000 - 0x10000), 8); |
| 307 | if (memcmp(temp, "BRN-BOOT", 8) == 0) { |
| 308 | if (!cmdline_mac) |
| 309 | memcpy_fromio(ifxmips_ethaddr, |
| 310 | (void *)KSEG1ADDR(IFXMIPS_FLASH_START + |
| 311 | 0x800000 - 0x10000 + 0x16), 6); |
| 312 | if (is_valid_ether_addr(ifxmips_ethaddr)) |
| 313 | cmdline_mac = 1; |
| 314 | return 1; |
| 315 | } else { |
| 316 | return 0; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | int ifxmips_has_brn_block(void) |
| 321 | { |
| 322 | return ifxmips_brn; |
| 323 | } |
| 324 | EXPORT_SYMBOL(ifxmips_has_brn_block); |
| 325 | |
| 326 | struct ifxmips_board *ifxmips_find_board(void) |
| 327 | { |
| 328 | int i; |
| 329 | if (!*board_name) |
| 330 | return 0; |
| 331 | for (i = 0; i < ARRAY_SIZE(boards); i++) |
| 332 | if ((boards[i].system_type == chiprev) && |
| 333 | (!strcmp(boards[i].name, board_name))) |
| 334 | return &boards[i]; |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | int __init ifxmips_init_devices(void) |
| 339 | { |
| 340 | struct ifxmips_board *board; |
| 341 | |
| 342 | chiprev = (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0x0FFFFFFF); |
| 343 | board = ifxmips_find_board(); |
| 344 | ifxmips_brn = ifxmips_find_brn_block(); |
| 345 | |
| 346 | if (!cmdline_mac) |
| 347 | random_ether_addr(ifxmips_ethaddr); |
| 348 | |
| 349 | if (!board) { |
| 350 | switch (chiprev) { |
| 351 | case SYSTEM_DANUBE_CHIPID1: |
| 352 | case SYSTEM_DANUBE_CHIPID2: |
| 353 | default: |
| 354 | board = &boards[0]; |
| 355 | break; |
| 356 | case SYSTEM_TWINPASS_CHIPID: |
| 357 | board = &boards[1]; |
| 358 | break; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | switch (board->type) { |
| 363 | case EASY50712: |
| 364 | board->num_devs = ARRAY_SIZE(easy50712_devs); |
| 365 | ifxmips_led_data.num_leds = ARRAY_SIZE(easy50712_leds); |
| 366 | break; |
| 367 | case EASY4010: |
| 368 | board->num_devs = ARRAY_SIZE(easy4010_devs); |
| 369 | ifxmips_led_data.num_leds = ARRAY_SIZE(easy4010_leds); |
| 370 | break; |
| 371 | case ARV4519: |
| 372 | /* set some sane defaults for the gpios */ |
| 373 | gpio_set_value(3, 0); |
| 374 | gpio_set_value(4, 0); |
| 375 | gpio_set_value(5, 0); |
| 376 | gpio_set_value(6, 0); |
| 377 | gpio_set_value(7, 1); |
| 378 | gpio_set_value(8, 1); |
| 379 | gpio_set_value(19, 0); |
| 380 | board->num_devs = ARRAY_SIZE(arv5419_devs); |
| 381 | #ifdef CONFIG_LEDS_GPIO |
| 382 | ifxmips_gpio_led_data.num_leds = ARRAY_SIZE(arv4519_gpio_leds); |
| 383 | #endif |
| 384 | break; |
| 385 | } |
| 386 | #ifdef CONFIG_LEDS_GPIO |
| 387 | ifxmips_gpio_led_data.leds = board->gpio_leds; |
| 388 | #endif |
| 389 | ifxmips_led_data.leds = board->ifxmips_leds; |
| 390 | |
| 391 | printk(KERN_INFO "%s: adding %d devs\n", |
| 392 | __func__, board->num_devs); |
| 393 | |
| 394 | ifxmips_gpio.resource = &board->reset_resource; |
| 395 | ifxmips_gpio_dev.resource = &board->gpiodev_resource; |
| 396 | if (board->pci_external_clock) |
| 397 | ifxmips_pci_external_clock = 1; |
| 398 | if (board->pci_req_mask) |
| 399 | ifxmips_pci_req_mask = board->pci_req_mask; |
| 400 | printk(KERN_INFO "using board definition %s\n", board->name); |
| 401 | return platform_add_devices(board->devs, board->num_devs); |
| 402 | } |
| 403 | |
| 404 | arch_initcall(ifxmips_init_devices); |
| 405 | |
