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 or xM. 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 0 0 => xM 118 */ 119 static int get_board_revision(void) 120 { 121 int revision; 122 123 if (!gpio_request(171, "") && 124 !gpio_request(172, "") && 125 !gpio_request(173, "")) { 126 127 gpio_direction_input(171); 128 gpio_direction_input(172); 129 gpio_direction_input(173); 130 131 revision = gpio_get_value(173) << 2 | 132 gpio_get_value(172) << 1 | 133 gpio_get_value(171); 134 } else { 135 printf("Error: unable to acquire board revision GPIOs\n"); 136 revision = -1; 137 } 138 139 return revision; 140 } 141 142 #ifdef CONFIG_SPL_BUILD 143 /* 144 * Routine: get_board_mem_timings 145 * Description: If we use SPL then there is no x-loader nor config header 146 * so we have to setup the DDR timings ourself on both banks. 147 */ 148 void get_board_mem_timings(struct board_sdrc_timings *timings) 149 { 150 int pop_mfr, pop_id; 151 152 /* 153 * We need to identify what PoP memory is on the board so that 154 * we know what timings to use. If we can't identify it then 155 * we know it's an xM. To map the ID values please see nand_ids.c 156 */ 157 identify_nand_chip(&pop_mfr, &pop_id); 158 159 timings->mr = MICRON_V_MR_165; 160 switch (get_board_revision()) { 161 case REVISION_C4: 162 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 163 /* 512MB DDR */ 164 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 165 timings->ctrla = NUMONYX_V_ACTIMA_165; 166 timings->ctrlb = NUMONYX_V_ACTIMB_165; 167 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 168 break; 169 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 170 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 171 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 172 timings->ctrla = MICRON_V_ACTIMA_165; 173 timings->ctrlb = MICRON_V_ACTIMB_165; 174 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 175 break; 176 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 177 /* Beagleboard Rev C5, 256MB DDR */ 178 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 179 timings->ctrla = MICRON_V_ACTIMA_200; 180 timings->ctrlb = MICRON_V_ACTIMB_200; 181 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 182 break; 183 } 184 case REVISION_XM_A: 185 case REVISION_XM_B: 186 case REVISION_XM_C: 187 if (pop_mfr == 0) { 188 /* 256MB DDR */ 189 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 190 timings->ctrla = MICRON_V_ACTIMA_200; 191 timings->ctrlb = MICRON_V_ACTIMB_200; 192 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 193 } else { 194 /* 512MB DDR */ 195 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 196 timings->ctrla = NUMONYX_V_ACTIMA_165; 197 timings->ctrlb = NUMONYX_V_ACTIMB_165; 198 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 199 } 200 break; 201 default: 202 /* Assume 128MB and Micron/165MHz timings to be safe */ 203 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 204 timings->ctrla = MICRON_V_ACTIMA_165; 205 timings->ctrlb = MICRON_V_ACTIMB_165; 206 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 207 } 208 } 209 #endif 210 211 /* 212 * Routine: get_expansion_id 213 * Description: This function checks for expansion board by checking I2C 214 * bus 1 for the availability of an AT24C01B serial EEPROM. 215 * returns the device_vendor field from the EEPROM 216 */ 217 static unsigned int get_expansion_id(void) 218 { 219 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 220 221 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 222 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 223 i2c_set_bus_num(TWL4030_I2C_BUS); 224 return BEAGLE_NO_EEPROM; 225 } 226 227 /* read configuration data */ 228 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 229 sizeof(expansion_config)); 230 231 /* retry reading configuration data with 16bit addressing */ 232 if ((expansion_config.device_vendor == 0xFFFFFF00) || 233 (expansion_config.device_vendor == 0xFFFFFFFF)) { 234 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n"); 235 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config, 236 sizeof(expansion_config)); 237 } 238 239 i2c_set_bus_num(TWL4030_I2C_BUS); 240 241 return expansion_config.device_vendor; 242 } 243 244 #ifdef CONFIG_VIDEO_OMAP3 245 /* 246 * Configure DSS to display background color on DVID 247 * Configure VENC to display color bar on S-Video 248 */ 249 static void beagle_display_init(void) 250 { 251 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 252 switch (get_board_revision()) { 253 case REVISION_AXBX: 254 case REVISION_CX: 255 case REVISION_C4: 256 omap3_dss_panel_config(&dvid_cfg); 257 break; 258 case REVISION_XM_A: 259 case REVISION_XM_B: 260 case REVISION_XM_C: 261 default: 262 omap3_dss_panel_config(&dvid_cfg_xm); 263 break; 264 } 265 } 266 267 /* 268 * Enable DVI power 269 */ 270 static void beagle_dvi_pup(void) 271 { 272 uchar val; 273 274 switch (get_board_revision()) { 275 case REVISION_AXBX: 276 case REVISION_CX: 277 case REVISION_C4: 278 case REVISION_XM_A: 279 gpio_request(170, ""); 280 gpio_direction_output(170, 0); 281 gpio_set_value(170, 1); 282 break; 283 case REVISION_XM_B: 284 case REVISION_XM_C: 285 default: 286 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 287 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 288 289 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 290 val |= 4; 291 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 292 293 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 294 val |= 4; 295 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 296 break; 297 } 298 } 299 #endif 300 301 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 302 static struct musb_hdrc_config musb_config = { 303 .multipoint = 1, 304 .dyn_fifo = 1, 305 .num_eps = 16, 306 .ram_bits = 12, 307 }; 308 309 static struct omap_musb_board_data musb_board_data = { 310 .interface_type = MUSB_INTERFACE_ULPI, 311 }; 312 313 static struct musb_hdrc_platform_data musb_plat = { 314 #if defined(CONFIG_MUSB_HOST) 315 .mode = MUSB_HOST, 316 #elif defined(CONFIG_MUSB_GADGET) 317 .mode = MUSB_PERIPHERAL, 318 #else 319 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 320 #endif 321 .config = &musb_config, 322 .power = 100, 323 .platform_ops = &omap2430_ops, 324 .board_data = &musb_board_data, 325 }; 326 #endif 327 328 /* 329 * Routine: misc_init_r 330 * Description: Configure board specific parts 331 */ 332 int misc_init_r(void) 333 { 334 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 335 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 336 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 337 338 /* Enable i2c2 pullup resisters */ 339 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 340 341 switch (get_board_revision()) { 342 case REVISION_AXBX: 343 printf("Beagle Rev Ax/Bx\n"); 344 setenv("beaglerev", "AxBx"); 345 break; 346 case REVISION_CX: 347 printf("Beagle Rev C1/C2/C3\n"); 348 setenv("beaglerev", "Cx"); 349 MUX_BEAGLE_C(); 350 break; 351 case REVISION_C4: 352 printf("Beagle Rev C4\n"); 353 setenv("beaglerev", "C4"); 354 MUX_BEAGLE_C(); 355 /* Set VAUX2 to 1.8V for EHCI PHY */ 356 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 357 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 358 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 359 TWL4030_PM_RECEIVER_DEV_GRP_P1); 360 break; 361 case REVISION_XM_A: 362 printf("Beagle xM Rev A\n"); 363 setenv("beaglerev", "xMA"); 364 MUX_BEAGLE_XM(); 365 /* Set VAUX2 to 1.8V for EHCI PHY */ 366 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 367 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 368 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 369 TWL4030_PM_RECEIVER_DEV_GRP_P1); 370 break; 371 case REVISION_XM_B: 372 printf("Beagle xM Rev B\n"); 373 setenv("beaglerev", "xMB"); 374 MUX_BEAGLE_XM(); 375 /* Set VAUX2 to 1.8V for EHCI PHY */ 376 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 377 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 378 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 379 TWL4030_PM_RECEIVER_DEV_GRP_P1); 380 break; 381 case REVISION_XM_C: 382 printf("Beagle xM Rev C\n"); 383 setenv("beaglerev", "xMC"); 384 MUX_BEAGLE_XM(); 385 /* Set VAUX2 to 1.8V for EHCI PHY */ 386 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 387 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 388 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 389 TWL4030_PM_RECEIVER_DEV_GRP_P1); 390 break; 391 default: 392 printf("Beagle unknown 0x%02x\n", get_board_revision()); 393 MUX_BEAGLE_XM(); 394 /* Set VAUX2 to 1.8V for EHCI PHY */ 395 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 396 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 397 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 398 TWL4030_PM_RECEIVER_DEV_GRP_P1); 399 } 400 401 switch (get_expansion_id()) { 402 case TINCANTOOLS_ZIPPY: 403 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 404 expansion_config.revision, 405 expansion_config.fab_revision); 406 MUX_TINCANTOOLS_ZIPPY(); 407 setenv("buddy", "zippy"); 408 break; 409 case TINCANTOOLS_ZIPPY2: 410 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 411 expansion_config.revision, 412 expansion_config.fab_revision); 413 MUX_TINCANTOOLS_ZIPPY(); 414 setenv("buddy", "zippy2"); 415 break; 416 case TINCANTOOLS_TRAINER: 417 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 418 expansion_config.revision, 419 expansion_config.fab_revision); 420 MUX_TINCANTOOLS_ZIPPY(); 421 MUX_TINCANTOOLS_TRAINER(); 422 setenv("buddy", "trainer"); 423 break; 424 case TINCANTOOLS_SHOWDOG: 425 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 426 expansion_config.revision, 427 expansion_config.fab_revision); 428 /* Place holder for DSS2 definition for showdog lcd */ 429 setenv("defaultdisplay", "showdoglcd"); 430 setenv("buddy", "showdog"); 431 break; 432 case KBADC_BEAGLEFPGA: 433 printf("Recognized KBADC Beagle FPGA board\n"); 434 MUX_KBADC_BEAGLEFPGA(); 435 setenv("buddy", "beaglefpga"); 436 break; 437 case LW_BEAGLETOUCH: 438 printf("Recognized Liquidware BeagleTouch board\n"); 439 setenv("buddy", "beagletouch"); 440 break; 441 case BRAINMUX_LCDOG: 442 printf("Recognized Brainmux LCDog board\n"); 443 setenv("buddy", "lcdog"); 444 break; 445 case BRAINMUX_LCDOGTOUCH: 446 printf("Recognized Brainmux LCDog Touch board\n"); 447 setenv("buddy", "lcdogtouch"); 448 break; 449 case BBTOYS_WIFI: 450 printf("Recognized BeagleBoardToys WiFi board\n"); 451 MUX_BBTOYS_WIFI() 452 setenv("buddy", "bbtoys-wifi"); 453 break;; 454 case BBTOYS_VGA: 455 printf("Recognized BeagleBoardToys VGA board\n"); 456 break;; 457 case BBTOYS_LCD: 458 printf("Recognized BeagleBoardToys LCD board\n"); 459 break;; 460 case BCT_BRETTL3: 461 printf("Recognized bct electronic GmbH brettl3 board\n"); 462 break; 463 case BCT_BRETTL4: 464 printf("Recognized bct electronic GmbH brettl4 board\n"); 465 break; 466 case LSR_COM6L_ADPT: 467 printf("Recognized LSR COM6L Adapter Board\n"); 468 MUX_BBTOYS_WIFI() 469 setenv("buddy", "lsr-com6l-adpt"); 470 break; 471 case BEAGLE_NO_EEPROM: 472 printf("No EEPROM on expansion board\n"); 473 setenv("buddy", "none"); 474 break; 475 default: 476 printf("Unrecognized expansion board: %x\n", 477 expansion_config.device_vendor); 478 setenv("buddy", "unknown"); 479 } 480 481 if (expansion_config.content == 1) 482 setenv(expansion_config.env_var, expansion_config.env_setting); 483 484 twl4030_power_init(); 485 switch (get_board_revision()) { 486 case REVISION_XM_A: 487 case REVISION_XM_B: 488 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 489 break; 490 default: 491 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 492 break; 493 } 494 495 /* Set GPIO states before they are made outputs */ 496 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 497 &gpio6_base->setdataout); 498 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 499 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 500 501 /* Configure GPIOs to output */ 502 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 503 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 504 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 505 506 dieid_num_r(); 507 508 #ifdef CONFIG_VIDEO_OMAP3 509 beagle_dvi_pup(); 510 beagle_display_init(); 511 omap3_dss_enable(); 512 #endif 513 514 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 515 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 516 #endif 517 518 return 0; 519 } 520 521 /* 522 * Routine: set_muxconf_regs 523 * Description: Setting up the configuration Mux registers specific to the 524 * hardware. Many pins need to be moved from protect to primary 525 * mode. 526 */ 527 void set_muxconf_regs(void) 528 { 529 MUX_BEAGLE(); 530 } 531 532 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 533 int board_mmc_init(bd_t *bis) 534 { 535 return omap_mmc_init(0, 0, 0, -1, -1); 536 } 537 #endif 538 539 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 540 /* Call usb_stop() before starting the kernel */ 541 void show_boot_progress(int val) 542 { 543 if (val == BOOTSTAGE_ID_RUN_OS) 544 usb_stop(); 545 } 546 547 static struct omap_usbhs_board_data usbhs_bdata = { 548 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 549 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 550 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 551 }; 552 553 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 554 { 555 return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 556 } 557 558 int ehci_hcd_stop(int index) 559 { 560 return omap_ehci_hcd_stop(); 561 } 562 563 #endif /* CONFIG_USB_EHCI */ 564 565 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 566 int board_eth_init(bd_t *bis) 567 { 568 return usb_eth_initialize(bis); 569 } 570 #endif 571