SAFE public projects git trees. - safe/jmp/linux-2.6/blob - arch/blackfin/mach-bf537/boards/cm_bf537u.c

   1 /*
   2  * Copyright 2004-2009 Analog Devices Inc.
   3  *           2008-2009 Bluetechnix
   4  *                2005 National ICT Australia (NICTA)
   5  *                      Aidan Williams <aidan@nicta.com.au>
   6  *
   7  * Licensed under the GPL-2 or later.
   8  */
   9
  10 #include <linux/device.h>
  11 #include <linux/etherdevice.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/mtd/mtd.h>
  14 #include <linux/mtd/partitions.h>
  15 #include <linux/mtd/physmap.h>
  16 #include <linux/spi/spi.h>
  17 #include <linux/spi/flash.h>
  18 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
  19 #include <linux/usb/isp1362.h>
  20 #endif
  21 #include <linux/ata_platform.h>
  22 #include <linux/irq.h>
  23 #include <asm/dma.h>
  24 #include <asm/bfin5xx_spi.h>
  25 #include <asm/portmux.h>
  26 #include <asm/dpmc.h>
  27 #include <linux/spi/mmc_spi.h>
  28
  29 /*
  30  * Name the Board for the /proc/cpuinfo
  31  */
  32 const char bfin_board_name[] = "Bluetechnix CM BF537U";
  33
  34 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
  35 /* all SPI peripherals info goes here */
  36
  37 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
  38 static struct mtd_partition bfin_spi_flash_partitions[] = {
  39         {
  40                 .name = "bootloader(spi)",
  41                 .size = 0x00020000,
  42                 .offset = 0,
  43                 .mask_flags = MTD_CAP_ROM
  44         }, {
  45                 .name = "linux kernel(spi)",
  46                 .size = 0xe0000,
  47                 .offset = 0x20000
  48         }, {
  49                 .name = "file system(spi)",
  50                 .size = 0x700000,
  51                 .offset = 0x00100000,
  52         }
  53 };
  54
  55 static struct flash_platform_data bfin_spi_flash_data = {
  56         .name = "m25p80",
  57         .parts = bfin_spi_flash_partitions,
  58         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
  59         .type = "m25p64",
  60 };
  61
  62 /* SPI flash chip (m25p64) */
  63 static struct bfin5xx_spi_chip spi_flash_chip_info = {
  64         .enable_dma = 0,         /* use dma transfer with this chip*/
  65         .bits_per_word = 8,
  66 };
  67 #endif
  68
  69 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
  70 /* SPI ADC chip */
  71 static struct bfin5xx_spi_chip spi_adc_chip_info = {
  72         .enable_dma = 1,         /* use dma transfer with this chip*/
  73         .bits_per_word = 16,
  74 };
  75 #endif
  76
  77 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
  78 static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
  79         .enable_dma = 0,
  80         .bits_per_word = 16,
  81 };
  82 #endif
  83
  84 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
  85 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
  86         .enable_dma = 0,
  87         .bits_per_word = 8,
  88 };
  89 #endif
  90
  91 static struct spi_board_info bfin_spi_board_info[] __initdata = {
  92 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
  93         {
  94                 /* the modalias must be the same as spi device driver name */
  95                 .modalias = "m25p80", /* Name of spi_driver for this device */
  96                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
  97                 .bus_num = 0, /* Framework bus number */
  98                 .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
  99                 .platform_data = &bfin_spi_flash_data,
 100                 .controller_data = &spi_flash_chip_info,
 101                 .mode = SPI_MODE_3,
 102         },
 103 #endif
 104
 105 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 106         {
 107                 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
 108                 .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
 109                 .bus_num = 0, /* Framework bus number */
 110                 .chip_select = 1, /* Framework chip select. */
 111                 .platform_data = NULL, /* No spi_driver specific config */
 112                 .controller_data = &spi_adc_chip_info,
 113         },
 114 #endif
 115
 116 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 117         {
 118                 .modalias = "ad1836",
 119                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 120                 .bus_num = 0,
 121                 .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
 122                 .controller_data = &ad1836_spi_chip_info,
 123         },
 124 #endif
 125
 126 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 127         {
 128                 .modalias = "mmc_spi",
 129                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 130                 .bus_num = 0,
 131                 .chip_select = 1,
 132                 .controller_data = &mmc_spi_chip_info,
 133                 .mode = SPI_MODE_3,
 134         },
 135 #endif
 136 };
 137
 138 /* SPI (0) */
 139 static struct resource bfin_spi0_resource[] = {
 140         [0] = {
 141                 .start = SPI0_REGBASE,
 142                 .end   = SPI0_REGBASE + 0xFF,
 143                 .flags = IORESOURCE_MEM,
 144                 },
 145         [1] = {
 146                 .start = CH_SPI,
 147                 .end   = CH_SPI,
 148                 .flags = IORESOURCE_DMA,
 149         },
 150         [2] = {
 151                 .start = IRQ_SPI,
 152                 .end   = IRQ_SPI,
 153                 .flags = IORESOURCE_IRQ,
 154         },
 155 };
 156
 157 /* SPI controller data */
 158 static struct bfin5xx_spi_master bfin_spi0_info = {
 159         .num_chipselect = 8,
 160         .enable_dma = 1,  /* master has the ability to do dma transfer */
 161         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 162 };
 163
 164 static struct platform_device bfin_spi0_device = {
 165         .name = "bfin-spi",
 166         .id = 0, /* Bus number */
 167         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 168         .resource = bfin_spi0_resource,
 169         .dev = {
 170                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 171         },
 172 };
 173 #endif  /* spi master and devices */
 174
 175 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 176 static struct platform_device rtc_device = {
 177         .name = "rtc-bfin",
 178         .id   = -1,
 179 };
 180 #endif
 181
 182 #if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
 183 static struct platform_device hitachi_fb_device = {
 184         .name = "hitachi-tx09",
 185 };
 186 #endif
 187
 188 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 189 #include <linux/smc91x.h>
 190
 191 static struct smc91x_platdata smc91x_info = {
 192         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 193         .leda = RPC_LED_100_10,
 194         .ledb = RPC_LED_TX_RX,
 195 };
 196
 197 static struct resource smc91x_resources[] = {
 198         {
 199                 .start = 0x20200300,
 200                 .end = 0x20200300 + 16,
 201                 .flags = IORESOURCE_MEM,
 202         }, {
 203                 .start = IRQ_PF14,
 204                 .end = IRQ_PF14,
 205                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 206                 },
 207 };
 208
 209 static struct platform_device smc91x_device = {
 210         .name = "smc91x",
 211         .id = 0,
 212         .num_resources = ARRAY_SIZE(smc91x_resources),
 213         .resource = smc91x_resources,
 214         .dev    = {
 215                 .platform_data  = &smc91x_info,
 216         },
 217 };
 218 #endif
 219
 220 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
 221 static struct resource isp1362_hcd_resources[] = {
 222         {
 223                 .start = 0x20308000,
 224                 .end = 0x20308000,
 225                 .flags = IORESOURCE_MEM,
 226         }, {
 227                 .start = 0x20308004,
 228                 .end = 0x20308004,
 229                 .flags = IORESOURCE_MEM,
 230         }, {
 231                 .start = IRQ_PG15,
 232                 .end = IRQ_PG15,
 233                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 234         },
 235 };
 236
 237 static struct isp1362_platform_data isp1362_priv = {
 238         .sel15Kres = 1,
 239         .clknotstop = 0,
 240         .oc_enable = 0,
 241         .int_act_high = 0,
 242         .int_edge_triggered = 0,
 243         .remote_wakeup_connected = 0,
 244         .no_power_switching = 1,
 245         .power_switching_mode = 0,
 246 };
 247
 248 static struct platform_device isp1362_hcd_device = {
 249         .name = "isp1362-hcd",
 250         .id = 0,
 251         .dev = {
 252                 .platform_data = &isp1362_priv,
 253         },
 254         .num_resources = ARRAY_SIZE(isp1362_hcd_resources),
 255         .resource = isp1362_hcd_resources,
 256 };
 257 #endif
 258
 259 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 260 static struct resource net2272_bfin_resources[] = {
 261         {
 262                 .start = 0x20200000,
 263                 .end = 0x20200000 + 0x100,
 264                 .flags = IORESOURCE_MEM,
 265         }, {
 266                 .start = IRQ_PH14,
 267                 .end = IRQ_PH14,
 268                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 269         },
 270 };
 271
 272 static struct platform_device net2272_bfin_device = {
 273         .name = "net2272",
 274         .id = -1,
 275         .num_resources = ARRAY_SIZE(net2272_bfin_resources),
 276         .resource = net2272_bfin_resources,
 277 };
 278 #endif
 279
 280 static struct resource bfin_gpios_resources = {
 281         .start = 0,
 282         .end   = MAX_BLACKFIN_GPIOS - 1,
 283         .flags = IORESOURCE_IRQ,
 284 };
 285
 286 static struct platform_device bfin_gpios_device = {
 287         .name = "simple-gpio",
 288         .id = -1,
 289         .num_resources = 1,
 290         .resource = &bfin_gpios_resources,
 291 };
 292
 293 #if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
 294 static struct mtd_partition cm_partitions[] = {
 295         {
 296                 .name   = "bootloader(nor)",
 297                 .size   = 0x40000,
 298                 .offset = 0,
 299         }, {
 300                 .name   = "linux kernel(nor)",
 301                 .size   = 0x100000,
 302                 .offset = MTDPART_OFS_APPEND,
 303         }, {
 304                 .name   = "file system(nor)",
 305                 .size   = MTDPART_SIZ_FULL,
 306                 .offset = MTDPART_OFS_APPEND,
 307         }
 308 };
 309
 310 static struct physmap_flash_data cm_flash_data = {
 311         .width    = 2,
 312         .parts    = cm_partitions,
 313         .nr_parts = ARRAY_SIZE(cm_partitions),
 314 };
 315
 316 static unsigned cm_flash_gpios[] = { GPIO_PH0 };
 317
 318 static struct resource cm_flash_resource[] = {
 319         {
 320                 .name  = "cfi_probe",
 321                 .start = 0x20000000,
 322                 .end   = 0x201fffff,
 323                 .flags = IORESOURCE_MEM,
 324         }, {
 325                 .start = (unsigned long)cm_flash_gpios,
 326                 .end   = ARRAY_SIZE(cm_flash_gpios),
 327                 .flags = IORESOURCE_IRQ,
 328         }
 329 };
 330
 331 static struct platform_device cm_flash_device = {
 332         .name          = "gpio-addr-flash",
 333         .id            = 0,
 334         .dev = {
 335                 .platform_data = &cm_flash_data,
 336         },
 337         .num_resources = ARRAY_SIZE(cm_flash_resource),
 338         .resource      = cm_flash_resource,
 339 };
 340 #endif
 341
 342 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 343 static struct resource bfin_uart_resources[] = {
 344         {
 345                 .start = 0xFFC00400,
 346                 .end = 0xFFC004FF,
 347                 .flags = IORESOURCE_MEM,
 348         }, {
 349                 .start = 0xFFC02000,
 350                 .end = 0xFFC020FF,
 351                 .flags = IORESOURCE_MEM,
 352         },
 353 };
 354
 355 static struct platform_device bfin_uart_device = {
 356         .name = "bfin-uart",
 357         .id = 1,
 358         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 359         .resource = bfin_uart_resources,
 360 };
 361 #endif
 362
 363 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 364 #ifdef CONFIG_BFIN_SIR0
 365 static struct resource bfin_sir0_resources[] = {
 366         {
 367                 .start = 0xFFC00400,
 368                 .end = 0xFFC004FF,
 369                 .flags = IORESOURCE_MEM,
 370         },
 371         {
 372                 .start = IRQ_UART0_RX,
 373                 .end = IRQ_UART0_RX+1,
 374                 .flags = IORESOURCE_IRQ,
 375         },
 376         {
 377                 .start = CH_UART0_RX,
 378                 .end = CH_UART0_RX+1,
 379                 .flags = IORESOURCE_DMA,
 380         },
 381 };
 382 static struct platform_device bfin_sir0_device = {
 383         .name = "bfin_sir",
 384         .id = 0,
 385         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 386         .resource = bfin_sir0_resources,
 387 };
 388 #endif
 389 #ifdef CONFIG_BFIN_SIR1
 390 static struct resource bfin_sir1_resources[] = {
 391         {
 392                 .start = 0xFFC02000,
 393                 .end = 0xFFC020FF,
 394                 .flags = IORESOURCE_MEM,
 395         },
 396         {
 397                 .start = IRQ_UART1_RX,
 398                 .end = IRQ_UART1_RX+1,
 399                 .flags = IORESOURCE_IRQ,
 400         },
 401         {
 402                 .start = CH_UART1_RX,
 403                 .end = CH_UART1_RX+1,
 404                 .flags = IORESOURCE_DMA,
 405         },
 406 };
 407 static struct platform_device bfin_sir1_device = {
 408         .name = "bfin_sir",
 409         .id = 1,
 410         .num_resources = ARRAY_SIZE(bfin_sir1_resources),
 411         .resource = bfin_sir1_resources,
 412 };
 413 #endif
 414 #endif
 415
 416 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 417 static struct resource bfin_twi0_resource[] = {
 418         [0] = {
 419                 .start = TWI0_REGBASE,
 420                 .end   = TWI0_REGBASE,
 421                 .flags = IORESOURCE_MEM,
 422         },
 423         [1] = {
 424                 .start = IRQ_TWI,
 425                 .end   = IRQ_TWI,
 426                 .flags = IORESOURCE_IRQ,
 427         },
 428 };
 429
 430 static struct platform_device i2c_bfin_twi_device = {
 431         .name = "i2c-bfin-twi",
 432         .id = 0,
 433         .num_resources = ARRAY_SIZE(bfin_twi0_resource),
 434         .resource = bfin_twi0_resource,
 435 };
 436 #endif
 437
 438 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 439 static struct platform_device bfin_sport0_uart_device = {
 440         .name = "bfin-sport-uart",
 441         .id = 0,
 442 };
 443
 444 static struct platform_device bfin_sport1_uart_device = {
 445         .name = "bfin-sport-uart",
 446         .id = 1,
 447 };
 448 #endif
 449
 450 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 451 static struct platform_device bfin_mii_bus = {
 452         .name = "bfin_mii_bus",
 453 };
 454
 455 static struct platform_device bfin_mac_device = {
 456         .name = "bfin_mac",
 457         .dev.platform_data = &bfin_mii_bus,
 458 };
 459 #endif
 460
 461 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 462 #define PATA_INT        IRQ_PF14
 463
 464 static struct pata_platform_info bfin_pata_platform_data = {
 465         .ioport_shift = 2,
 466         .irq_type = IRQF_TRIGGER_HIGH | IRQF_DISABLED,
 467 };
 468
 469 static struct resource bfin_pata_resources[] = {
 470         {
 471                 .start = 0x2030C000,
 472                 .end = 0x2030C01F,
 473                 .flags = IORESOURCE_MEM,
 474         },
 475         {
 476                 .start = 0x2030D018,
 477                 .end = 0x2030D01B,
 478                 .flags = IORESOURCE_MEM,
 479         },
 480         {
 481                 .start = PATA_INT,
 482                 .end = PATA_INT,
 483                 .flags = IORESOURCE_IRQ,
 484         },
 485 };
 486
 487 static struct platform_device bfin_pata_device = {
 488         .name = "pata_platform",
 489         .id = -1,
 490         .num_resources = ARRAY_SIZE(bfin_pata_resources),
 491         .resource = bfin_pata_resources,
 492         .dev = {
 493                 .platform_data = &bfin_pata_platform_data,
 494         }
 495 };
 496 #endif
 497
 498 static const unsigned int cclk_vlev_datasheet[] =
 499 {
 500         VRPAIR(VLEV_085, 250000000),
 501         VRPAIR(VLEV_090, 376000000),
 502         VRPAIR(VLEV_095, 426000000),
 503         VRPAIR(VLEV_100, 426000000),
 504         VRPAIR(VLEV_105, 476000000),
 505         VRPAIR(VLEV_110, 476000000),
 506         VRPAIR(VLEV_115, 476000000),
 507         VRPAIR(VLEV_120, 500000000),
 508         VRPAIR(VLEV_125, 533000000),
 509         VRPAIR(VLEV_130, 600000000),
 510 };
 511
 512 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 513         .tuple_tab = cclk_vlev_datasheet,
 514         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 515         .vr_settling_time = 25 /* us */,
 516 };
 517
 518 static struct platform_device bfin_dpmc = {
 519         .name = "bfin dpmc",
 520         .dev = {
 521                 .platform_data = &bfin_dmpc_vreg_data,
 522         },
 523 };
 524
 525 static struct platform_device *cm_bf537u_devices[] __initdata = {
 526
 527         &bfin_dpmc,
 528
 529 #if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
 530         &hitachi_fb_device,
 531 #endif
 532
 533 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 534         &rtc_device,
 535 #endif
 536
 537 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 538         &bfin_uart_device,
 539 #endif
 540
 541 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 542 #ifdef CONFIG_BFIN_SIR0
 543         &bfin_sir0_device,
 544 #endif
 545 #ifdef CONFIG_BFIN_SIR1
 546         &bfin_sir1_device,
 547 #endif
 548 #endif
 549
 550 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 551         &i2c_bfin_twi_device,
 552 #endif
 553
 554 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 555         &bfin_sport0_uart_device,
 556         &bfin_sport1_uart_device,
 557 #endif
 558
 559 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
 560         &isp1362_hcd_device,
 561 #endif
 562
 563 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 564         &smc91x_device,
 565 #endif
 566
 567 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 568         &bfin_mii_bus,
 569         &bfin_mac_device,
 570 #endif
 571
 572 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 573         &net2272_bfin_device,
 574 #endif
 575
 576 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 577         &bfin_spi0_device,
 578 #endif
 579
 580 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 581         &bfin_pata_device,
 582 #endif
 583
 584 #if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
 585         &cm_flash_device,
 586 #endif
 587
 588         &bfin_gpios_device,
 589 };
 590
 591 static int __init cm_bf537u_init(void)
 592 {
 593         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 594         platform_add_devices(cm_bf537u_devices, ARRAY_SIZE(cm_bf537u_devices));
 595 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 596         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 597 #endif
 598
 599 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
 600         irq_desc[PATA_INT].status |= IRQ_NOAUTOEN;
 601 #endif
 602         return 0;
 603 }
 604
 605 arch_initcall(cm_bf537u_init);
 606
 607 void bfin_get_ether_addr(char *addr)
 608 {
 609         random_ether_addr(addr);
 610         printk(KERN_WARNING "%s:%s: Setting Ethernet MAC to a random one\n", __FILE__, __func__);
 611 }
 612 EXPORT_SYMBOL(bfin_get_ether_addr);