1 /* 2 * (C) Copyright 2004-2011 3 * Texas Instruments, <www.ti.com> 4 * 5 * Author : 6 * Sunil Kumar <sunilsaini05@gmail.com> 7 * Shashi Ranjan <shashiranjanmca05@gmail.com> 8 * 9 * Derived from Beagle Board and 3430 SDP code by 10 * Richard Woodruff <r-woodruff2@ti.com> 11 * Syed Mohammed Khasim <khasim@ti.com> 12 * 13 * 14 * See file CREDITS for list of people who contributed to this 15 * project. 16 * 17 * This program is free software; you can redistribute it and/or 18 * modify it under the terms of the GNU General Public License as 19 * published by the Free Software Foundation; either version 2 of 20 * the License, or (at your option) any later version. 21 * 22 * This program is distributed in the hope that it will be useful, 23 * but WITHOUT ANY WARRANTY; without even the implied warranty of 24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 * GNU General Public License for more details. 26 * 27 * You should have received a copy of the GNU General Public License 28 * along with this program; if not, write to the Free Software 29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 30 * MA 02111-1307 USA 31 */ 32 #include <common.h> 33 #ifdef CONFIG_STATUS_LED 34 #include <status_led.h> 35 #endif 36 #include <twl4030.h> 37 #include <linux/mtd/nand.h> 38 #include <asm/io.h> 39 #include <asm/arch/mmc_host_def.h> 40 #include <asm/arch/mux.h> 41 #include <asm/arch/mem.h> 42 #include <asm/arch/sys_proto.h> 43 #include <asm/gpio.h> 44 #include <asm/mach-types.h> 45 #include <asm/omap_musb.h> 46 #include <asm/errno.h> 47 #include <linux/usb/ch9.h> 48 #include <linux/usb/gadget.h> 49 #include <linux/usb/musb.h> 50 #include "beagle.h" 51 #include <command.h> 52 53 #ifdef CONFIG_USB_EHCI 54 #include <usb.h> 55 #include <asm/ehci-omap.h> 56 #endif 57 58 #define TWL4030_I2C_BUS 0 59 #define EXPANSION_EEPROM_I2C_BUS 1 60 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50 61 62 #define TINCANTOOLS_ZIPPY 0x01000100 63 #define TINCANTOOLS_ZIPPY2 0x02000100 64 #define TINCANTOOLS_TRAINER 0x04000100 65 #define TINCANTOOLS_SHOWDOG 0x03000100 66 #define KBADC_BEAGLEFPGA 0x01000600 67 #define LW_BEAGLETOUCH 0x01000700 68 #define BRAINMUX_LCDOG 0x01000800 69 #define BRAINMUX_LCDOGTOUCH 0x02000800 70 #define BBTOYS_WIFI 0x01000B00 71 #define BBTOYS_VGA 0x02000B00 72 #define BBTOYS_LCD 0x03000B00 73 #define BCT_BRETTL3 0x01000F00 74 #define BCT_BRETTL4 0x02000F00 75 #define LSR_COM6L_ADPT 0x01001300 76 #define BEAGLE_NO_EEPROM 0xffffffff 77 78 DECLARE_GLOBAL_DATA_PTR; 79 80 static struct { 81 unsigned int device_vendor; 82 unsigned char revision; 83 unsigned char content; 84 char fab_revision[8]; 85 char env_var[16]; 86 char env_setting[64]; 87 } expansion_config; 88 89 /* 90 * Routine: board_init 91 * Description: Early hardware init. 92 */ 93 int board_init(void) 94 { 95 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 96 /* board id for Linux */ 97 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 98 /* boot param addr */ 99 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 100 101 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) 102 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); 103 #endif 104 105 return 0; 106 } 107 108 /* 109 * Routine: get_board_revision 110 * Description: Detect if we are running on a Beagle revision Ax/Bx, 111 * C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading 112 * the level of GPIO173, GPIO172 and GPIO171. This should 113 * result in 114 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 115 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 116 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 117 * GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx 118 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx 119 */ 120 static int get_board_revision(void) 121 { 122 int revision; 123 124 if (!gpio_request(171, "") && 125 !gpio_request(172, "") && 126 !gpio_request(173, "")) { 127 128 gpio_direction_input(171); 129 gpio_direction_input(172); 130 gpio_direction_input(173); 131 132 revision = gpio_get_value(173) << 2 | 133 gpio_get_value(172) << 1 | 134 gpio_get_value(171); 135 } else { 136 printf("Error: unable to acquire board revision GPIOs\n"); 137 revision = -1; 138 } 139 140 return revision; 141 } 142 143 #ifdef CONFIG_SPL_BUILD 144 /* 145 * Routine: get_board_mem_timings 146 * Description: If we use SPL then there is no x-loader nor config header 147 * so we have to setup the DDR timings ourself on both banks. 148 */ 149 void get_board_mem_timings(struct board_sdrc_timings *timings) 150 { 151 int pop_mfr, pop_id; 152 153 /* 154 * We need to identify what PoP memory is on the board so that 155 * we know what timings to use. If we can't identify it then 156 * we know it's an xM. To map the ID values please see nand_ids.c 157 */ 158 identify_nand_chip(&pop_mfr, &pop_id); 159 160 timings->mr = MICRON_V_MR_165; 161 switch (get_board_revision()) { 162 case REVISION_C4: 163 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 164 /* 512MB DDR */ 165 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 166 timings->ctrla = NUMONYX_V_ACTIMA_165; 167 timings->ctrlb = NUMONYX_V_ACTIMB_165; 168 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 169 break; 170 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 171 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 172 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 173 timings->ctrla = MICRON_V_ACTIMA_165; 174 timings->ctrlb = MICRON_V_ACTIMB_165; 175 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 176 break; 177 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 178 /* Beagleboard Rev C5, 256MB DDR */ 179 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 180 timings->ctrla = MICRON_V_ACTIMA_200; 181 timings->ctrlb = MICRON_V_ACTIMB_200; 182 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 183 break; 184 } 185 case REVISION_XM_A: 186 case REVISION_XM_B: 187 case REVISION_XM_C: 188 if (pop_mfr == 0) { 189 /* 256MB DDR */ 190 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 191 timings->ctrla = MICRON_V_ACTIMA_200; 192 timings->ctrlb = MICRON_V_ACTIMB_200; 193 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 194 } else { 195 /* 512MB DDR */ 196 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 197 timings->ctrla = NUMONYX_V_ACTIMA_165; 198 timings->ctrlb = NUMONYX_V_ACTIMB_165; 199 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 200 } 201 break; 202 default: 203 /* Assume 128MB and Micron/165MHz timings to be safe */ 204 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 205 timings->ctrla = MICRON_V_ACTIMA_165; 206 timings->ctrlb = MICRON_V_ACTIMB_165; 207 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 208 } 209 } 210 #endif 211 212 /* 213 * Routine: get_expansion_id 214 * Description: This function checks for expansion board by checking I2C 215 * bus 1 for the availability of an AT24C01B serial EEPROM. 216 * returns the device_vendor field from the EEPROM 217 */ 218 static unsigned int get_expansion_id(void) 219 { 220 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 221 222 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 223 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 224 i2c_set_bus_num(TWL4030_I2C_BUS); 225 return BEAGLE_NO_EEPROM; 226 } 227 228 /* read configuration data */ 229 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 230 sizeof(expansion_config)); 231 232 /* retry reading configuration data with 16bit addressing */ 233 if ((expansion_config.device_vendor == 0xFFFFFF00) || 234 (expansion_config.device_vendor == 0xFFFFFFFF)) { 235 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n"); 236 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config, 237 sizeof(expansion_config)); 238 } 239 240 i2c_set_bus_num(TWL4030_I2C_BUS); 241 242 return expansion_config.device_vendor; 243 } 244 245 #ifdef CONFIG_VIDEO_OMAP3 246 /* 247 * Configure DSS to display background color on DVID 248 * Configure VENC to display color bar on S-Video 249 */ 250 static void beagle_display_init(void) 251 { 252 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 253 switch (get_board_revision()) { 254 case REVISION_AXBX: 255 case REVISION_CX: 256 case REVISION_C4: 257 omap3_dss_panel_config(&dvid_cfg); 258 break; 259 case REVISION_XM_A: 260 case REVISION_XM_B: 261 case REVISION_XM_C: 262 default: 263 omap3_dss_panel_config(&dvid_cfg_xm); 264 break; 265 } 266 } 267 268 /* 269 * Enable DVI power 270 */ 271 static void beagle_dvi_pup(void) 272 { 273 uchar val; 274 275 switch (get_board_revision()) { 276 case REVISION_AXBX: 277 case REVISION_CX: 278 case REVISION_C4: 279 case REVISION_XM_A: 280 gpio_request(170, ""); 281 gpio_direction_output(170, 0); 282 gpio_set_value(170, 1); 283 break; 284 case REVISION_XM_B: 285 case REVISION_XM_C: 286 default: 287 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 288 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 289 290 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 291 val |= 4; 292 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 293 294 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 295 val |= 4; 296 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 297 break; 298 } 299 } 300 #endif 301 302 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 303 static struct musb_hdrc_config musb_config = { 304 .multipoint = 1, 305 .dyn_fifo = 1, 306 .num_eps = 16, 307 .ram_bits = 12, 308 }; 309 310 static struct omap_musb_board_data musb_board_data = { 311 .interface_type = MUSB_INTERFACE_ULPI, 312 }; 313 314 static struct musb_hdrc_platform_data musb_plat = { 315 #if defined(CONFIG_MUSB_HOST) 316 .mode = MUSB_HOST, 317 #elif defined(CONFIG_MUSB_GADGET) 318 .mode = MUSB_PERIPHERAL, 319 #else 320 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 321 #endif 322 .config = &musb_config, 323 .power = 100, 324 .platform_ops = &omap2430_ops, 325 .board_data = &musb_board_data, 326 }; 327 #endif 328 329 /* 330 * Routine: misc_init_r 331 * Description: Configure board specific parts 332 */ 333 int misc_init_r(void) 334 { 335 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 336 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 337 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 338 339 /* Enable i2c2 pullup resisters */ 340 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 341 342 switch (get_board_revision()) { 343 case REVISION_AXBX: 344 printf("Beagle Rev Ax/Bx\n"); 345 setenv("beaglerev", "AxBx"); 346 break; 347 case REVISION_CX: 348 printf("Beagle Rev C1/C2/C3\n"); 349 setenv("beaglerev", "Cx"); 350 MUX_BEAGLE_C(); 351 break; 352 case REVISION_C4: 353 printf("Beagle Rev C4\n"); 354 setenv("beaglerev", "C4"); 355 MUX_BEAGLE_C(); 356 /* Set VAUX2 to 1.8V for EHCI PHY */ 357 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 358 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 359 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 360 TWL4030_PM_RECEIVER_DEV_GRP_P1); 361 break; 362 case REVISION_XM_A: 363 printf("Beagle xM Rev A\n"); 364 setenv("beaglerev", "xMA"); 365 MUX_BEAGLE_XM(); 366 /* Set VAUX2 to 1.8V for EHCI PHY */ 367 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 368 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 369 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 370 TWL4030_PM_RECEIVER_DEV_GRP_P1); 371 break; 372 case REVISION_XM_B: 373 printf("Beagle xM Rev B\n"); 374 setenv("beaglerev", "xMB"); 375 MUX_BEAGLE_XM(); 376 /* Set VAUX2 to 1.8V for EHCI PHY */ 377 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 378 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 379 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 380 TWL4030_PM_RECEIVER_DEV_GRP_P1); 381 break; 382 case REVISION_XM_C: 383 printf("Beagle xM Rev C\n"); 384 setenv("beaglerev", "xMC"); 385 MUX_BEAGLE_XM(); 386 /* Set VAUX2 to 1.8V for EHCI PHY */ 387 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 388 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 389 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 390 TWL4030_PM_RECEIVER_DEV_GRP_P1); 391 break; 392 default: 393 printf("Beagle unknown 0x%02x\n", get_board_revision()); 394 MUX_BEAGLE_XM(); 395 /* Set VAUX2 to 1.8V for EHCI PHY */ 396 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 397 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 398 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 399 TWL4030_PM_RECEIVER_DEV_GRP_P1); 400 } 401 402 switch (get_expansion_id()) { 403 case TINCANTOOLS_ZIPPY: 404 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 405 expansion_config.revision, 406 expansion_config.fab_revision); 407 MUX_TINCANTOOLS_ZIPPY(); 408 setenv("buddy", "zippy"); 409 break; 410 case TINCANTOOLS_ZIPPY2: 411 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 412 expansion_config.revision, 413 expansion_config.fab_revision); 414 MUX_TINCANTOOLS_ZIPPY(); 415 setenv("buddy", "zippy2"); 416 break; 417 case TINCANTOOLS_TRAINER: 418 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 419 expansion_config.revision, 420 expansion_config.fab_revision); 421 MUX_TINCANTOOLS_ZIPPY(); 422 MUX_TINCANTOOLS_TRAINER(); 423 setenv("buddy", "trainer"); 424 break; 425 case TINCANTOOLS_SHOWDOG: 426 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 427 expansion_config.revision, 428 expansion_config.fab_revision); 429 /* Place holder for DSS2 definition for showdog lcd */ 430 setenv("defaultdisplay", "showdoglcd"); 431 setenv("buddy", "showdog"); 432 break; 433 case KBADC_BEAGLEFPGA: 434 printf("Recognized KBADC Beagle FPGA board\n"); 435 MUX_KBADC_BEAGLEFPGA(); 436 setenv("buddy", "beaglefpga"); 437 break; 438 case LW_BEAGLETOUCH: 439 printf("Recognized Liquidware BeagleTouch board\n"); 440 setenv("buddy", "beagletouch"); 441 break; 442 case BRAINMUX_LCDOG: 443 printf("Recognized Brainmux LCDog board\n"); 444 setenv("buddy", "lcdog"); 445 break; 446 case BRAINMUX_LCDOGTOUCH: 447 printf("Recognized Brainmux LCDog Touch board\n"); 448 setenv("buddy", "lcdogtouch"); 449 break; 450 case BBTOYS_WIFI: 451 printf("Recognized BeagleBoardToys WiFi board\n"); 452 MUX_BBTOYS_WIFI() 453 setenv("buddy", "bbtoys-wifi"); 454 break;; 455 case BBTOYS_VGA: 456 printf("Recognized BeagleBoardToys VGA board\n"); 457 break;; 458 case BBTOYS_LCD: 459 printf("Recognized BeagleBoardToys LCD board\n"); 460 break;; 461 case BCT_BRETTL3: 462 printf("Recognized bct electronic GmbH brettl3 board\n"); 463 break; 464 case BCT_BRETTL4: 465 printf("Recognized bct electronic GmbH brettl4 board\n"); 466 break; 467 case LSR_COM6L_ADPT: 468 printf("Recognized LSR COM6L Adapter Board\n"); 469 MUX_BBTOYS_WIFI() 470 setenv("buddy", "lsr-com6l-adpt"); 471 break; 472 case BEAGLE_NO_EEPROM: 473 printf("No EEPROM on expansion board\n"); 474 setenv("buddy", "none"); 475 break; 476 default: 477 printf("Unrecognized expansion board: %x\n", 478 expansion_config.device_vendor); 479 setenv("buddy", "unknown"); 480 } 481 482 if (expansion_config.content == 1) 483 setenv(expansion_config.env_var, expansion_config.env_setting); 484 485 twl4030_power_init(); 486 switch (get_board_revision()) { 487 case REVISION_XM_A: 488 case REVISION_XM_B: 489 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 490 break; 491 default: 492 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 493 break; 494 } 495 496 /* Set GPIO states before they are made outputs */ 497 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 498 &gpio6_base->setdataout); 499 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 500 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 501 502 /* Configure GPIOs to output */ 503 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 504 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 505 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 506 507 dieid_num_r(); 508 509 #ifdef CONFIG_VIDEO_OMAP3 510 beagle_dvi_pup(); 511 beagle_display_init(); 512 omap3_dss_enable(); 513 #endif 514 515 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 516 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 517 #endif 518 519 return 0; 520 } 521 522 /* 523 * Routine: set_muxconf_regs 524 * Description: Setting up the configuration Mux registers specific to the 525 * hardware. Many pins need to be moved from protect to primary 526 * mode. 527 */ 528 void set_muxconf_regs(void) 529 { 530 MUX_BEAGLE(); 531 } 532 533 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 534 int board_mmc_init(bd_t *bis) 535 { 536 return omap_mmc_init(0, 0, 0, -1, -1); 537 } 538 #endif 539 540 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 541 /* Call usb_stop() before starting the kernel */ 542 void show_boot_progress(int val) 543 { 544 if (val == BOOTSTAGE_ID_RUN_OS) 545 usb_stop(); 546 } 547 548 static struct omap_usbhs_board_data usbhs_bdata = { 549 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 550 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 551 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 552 }; 553 554 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 555 { 556 return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 557 } 558 559 int ehci_hcd_stop(int index) 560 { 561 return omap_ehci_hcd_stop(); 562 } 563 564 #endif /* CONFIG_USB_EHCI */ 565 566 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 567 int board_eth_init(bd_t *bis) 568 { 569 return usb_eth_initialize(bis); 570 } 571 #endif 572