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 BEAGLE_NO_EEPROM 0xffffffff 76 77 DECLARE_GLOBAL_DATA_PTR; 78 79 static struct { 80 unsigned int device_vendor; 81 unsigned char revision; 82 unsigned char content; 83 char fab_revision[8]; 84 char env_var[16]; 85 char env_setting[64]; 86 } expansion_config; 87 88 /* 89 * Routine: board_init 90 * Description: Early hardware init. 91 */ 92 int board_init(void) 93 { 94 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 95 /* board id for Linux */ 96 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 97 /* boot param addr */ 98 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 99 100 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) 101 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); 102 #endif 103 104 return 0; 105 } 106 107 /* 108 * Routine: get_board_revision 109 * Description: Detect if we are running on a Beagle revision Ax/Bx, 110 * C1/2/3, C4 or xM. This can be done by reading 111 * the level of GPIO173, GPIO172 and GPIO171. This should 112 * result in 113 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 114 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 115 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 116 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM 117 */ 118 static int get_board_revision(void) 119 { 120 int revision; 121 122 if (!gpio_request(171, "") && 123 !gpio_request(172, "") && 124 !gpio_request(173, "")) { 125 126 gpio_direction_input(171); 127 gpio_direction_input(172); 128 gpio_direction_input(173); 129 130 revision = gpio_get_value(173) << 2 | 131 gpio_get_value(172) << 1 | 132 gpio_get_value(171); 133 } else { 134 printf("Error: unable to acquire board revision GPIOs\n"); 135 revision = -1; 136 } 137 138 return revision; 139 } 140 141 #ifdef CONFIG_SPL_BUILD 142 /* 143 * Routine: get_board_mem_timings 144 * Description: If we use SPL then there is no x-loader nor config header 145 * so we have to setup the DDR timings ourself on both banks. 146 */ 147 void get_board_mem_timings(struct board_sdrc_timings *timings) 148 { 149 int pop_mfr, pop_id; 150 151 /* 152 * We need to identify what PoP memory is on the board so that 153 * we know what timings to use. If we can't identify it then 154 * we know it's an xM. To map the ID values please see nand_ids.c 155 */ 156 identify_nand_chip(&pop_mfr, &pop_id); 157 158 timings->mr = MICRON_V_MR_165; 159 switch (get_board_revision()) { 160 case REVISION_C4: 161 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 162 /* 512MB DDR */ 163 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 164 timings->ctrla = NUMONYX_V_ACTIMA_165; 165 timings->ctrlb = NUMONYX_V_ACTIMB_165; 166 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 167 break; 168 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 169 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 170 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 171 timings->ctrla = MICRON_V_ACTIMA_165; 172 timings->ctrlb = MICRON_V_ACTIMB_165; 173 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 174 break; 175 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 176 /* Beagleboard Rev C5, 256MB DDR */ 177 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 178 timings->ctrla = MICRON_V_ACTIMA_200; 179 timings->ctrlb = MICRON_V_ACTIMB_200; 180 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 181 break; 182 } 183 case REVISION_XM_A: 184 case REVISION_XM_B: 185 case REVISION_XM_C: 186 if (pop_mfr == 0) { 187 /* 256MB DDR */ 188 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 189 timings->ctrla = MICRON_V_ACTIMA_200; 190 timings->ctrlb = MICRON_V_ACTIMB_200; 191 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 192 } else { 193 /* 512MB DDR */ 194 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 195 timings->ctrla = NUMONYX_V_ACTIMA_165; 196 timings->ctrlb = NUMONYX_V_ACTIMB_165; 197 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 198 } 199 break; 200 default: 201 /* Assume 128MB and Micron/165MHz timings to be safe */ 202 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 203 timings->ctrla = MICRON_V_ACTIMA_165; 204 timings->ctrlb = MICRON_V_ACTIMB_165; 205 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 206 } 207 } 208 #endif 209 210 /* 211 * Routine: get_expansion_id 212 * Description: This function checks for expansion board by checking I2C 213 * bus 1 for the availability of an AT24C01B serial EEPROM. 214 * returns the device_vendor field from the EEPROM 215 */ 216 static unsigned int get_expansion_id(void) 217 { 218 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 219 220 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 221 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 222 i2c_set_bus_num(TWL4030_I2C_BUS); 223 return BEAGLE_NO_EEPROM; 224 } 225 226 /* read configuration data */ 227 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 228 sizeof(expansion_config)); 229 230 i2c_set_bus_num(TWL4030_I2C_BUS); 231 232 return expansion_config.device_vendor; 233 } 234 235 #ifdef CONFIG_VIDEO_OMAP3 236 /* 237 * Configure DSS to display background color on DVID 238 * Configure VENC to display color bar on S-Video 239 */ 240 static void beagle_display_init(void) 241 { 242 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 243 switch (get_board_revision()) { 244 case REVISION_AXBX: 245 case REVISION_CX: 246 case REVISION_C4: 247 omap3_dss_panel_config(&dvid_cfg); 248 break; 249 case REVISION_XM_A: 250 case REVISION_XM_B: 251 case REVISION_XM_C: 252 default: 253 omap3_dss_panel_config(&dvid_cfg_xm); 254 break; 255 } 256 } 257 258 /* 259 * Enable DVI power 260 */ 261 static void beagle_dvi_pup(void) 262 { 263 uchar val; 264 265 switch (get_board_revision()) { 266 case REVISION_AXBX: 267 case REVISION_CX: 268 case REVISION_C4: 269 case REVISION_XM_A: 270 gpio_request(170, ""); 271 gpio_direction_output(170, 0); 272 gpio_set_value(170, 1); 273 break; 274 case REVISION_XM_B: 275 case REVISION_XM_C: 276 default: 277 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 278 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 279 280 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 281 val |= 4; 282 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 283 284 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 285 val |= 4; 286 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 287 break; 288 } 289 } 290 #endif 291 292 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 293 static struct musb_hdrc_config musb_config = { 294 .multipoint = 1, 295 .dyn_fifo = 1, 296 .num_eps = 16, 297 .ram_bits = 12, 298 }; 299 300 static struct omap_musb_board_data musb_board_data = { 301 .interface_type = MUSB_INTERFACE_ULPI, 302 }; 303 304 static struct musb_hdrc_platform_data musb_plat = { 305 #if defined(CONFIG_MUSB_HOST) 306 .mode = MUSB_HOST, 307 #elif defined(CONFIG_MUSB_GADGET) 308 .mode = MUSB_PERIPHERAL, 309 #else 310 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 311 #endif 312 .config = &musb_config, 313 .power = 100, 314 .platform_ops = &omap2430_ops, 315 .board_data = &musb_board_data, 316 }; 317 #endif 318 319 /* 320 * Routine: misc_init_r 321 * Description: Configure board specific parts 322 */ 323 int misc_init_r(void) 324 { 325 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 326 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 327 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 328 329 /* Enable i2c2 pullup resisters */ 330 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 331 332 switch (get_board_revision()) { 333 case REVISION_AXBX: 334 printf("Beagle Rev Ax/Bx\n"); 335 setenv("beaglerev", "AxBx"); 336 break; 337 case REVISION_CX: 338 printf("Beagle Rev C1/C2/C3\n"); 339 setenv("beaglerev", "Cx"); 340 MUX_BEAGLE_C(); 341 break; 342 case REVISION_C4: 343 printf("Beagle Rev C4\n"); 344 setenv("beaglerev", "C4"); 345 MUX_BEAGLE_C(); 346 /* Set VAUX2 to 1.8V for EHCI PHY */ 347 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 348 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 349 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 350 TWL4030_PM_RECEIVER_DEV_GRP_P1); 351 break; 352 case REVISION_XM_A: 353 printf("Beagle xM Rev A\n"); 354 setenv("beaglerev", "xMA"); 355 MUX_BEAGLE_XM(); 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_B: 363 printf("Beagle xM Rev B\n"); 364 setenv("beaglerev", "xMB"); 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_C: 373 printf("Beagle xM Rev C\n"); 374 setenv("beaglerev", "xMC"); 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 default: 383 printf("Beagle unknown 0x%02x\n", get_board_revision()); 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 } 391 392 switch (get_expansion_id()) { 393 case TINCANTOOLS_ZIPPY: 394 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 395 expansion_config.revision, 396 expansion_config.fab_revision); 397 MUX_TINCANTOOLS_ZIPPY(); 398 setenv("buddy", "zippy"); 399 break; 400 case TINCANTOOLS_ZIPPY2: 401 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 402 expansion_config.revision, 403 expansion_config.fab_revision); 404 MUX_TINCANTOOLS_ZIPPY(); 405 setenv("buddy", "zippy2"); 406 break; 407 case TINCANTOOLS_TRAINER: 408 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 409 expansion_config.revision, 410 expansion_config.fab_revision); 411 MUX_TINCANTOOLS_ZIPPY(); 412 MUX_TINCANTOOLS_TRAINER(); 413 setenv("buddy", "trainer"); 414 break; 415 case TINCANTOOLS_SHOWDOG: 416 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 417 expansion_config.revision, 418 expansion_config.fab_revision); 419 /* Place holder for DSS2 definition for showdog lcd */ 420 setenv("defaultdisplay", "showdoglcd"); 421 setenv("buddy", "showdog"); 422 break; 423 case KBADC_BEAGLEFPGA: 424 printf("Recognized KBADC Beagle FPGA board\n"); 425 MUX_KBADC_BEAGLEFPGA(); 426 setenv("buddy", "beaglefpga"); 427 break; 428 case LW_BEAGLETOUCH: 429 printf("Recognized Liquidware BeagleTouch board\n"); 430 setenv("buddy", "beagletouch"); 431 break; 432 case BRAINMUX_LCDOG: 433 printf("Recognized Brainmux LCDog board\n"); 434 setenv("buddy", "lcdog"); 435 break; 436 case BRAINMUX_LCDOGTOUCH: 437 printf("Recognized Brainmux LCDog Touch board\n"); 438 setenv("buddy", "lcdogtouch"); 439 break; 440 case BBTOYS_WIFI: 441 printf("Recognized BeagleBoardToys WiFi board\n"); 442 MUX_BBTOYS_WIFI() 443 setenv("buddy", "bbtoys-wifi"); 444 break;; 445 case BBTOYS_VGA: 446 printf("Recognized BeagleBoardToys VGA board\n"); 447 break;; 448 case BBTOYS_LCD: 449 printf("Recognized BeagleBoardToys LCD board\n"); 450 break;; 451 case BCT_BRETTL3: 452 printf("Recognized bct electronic GmbH brettl3 board\n"); 453 break; 454 case BCT_BRETTL4: 455 printf("Recognized bct electronic GmbH brettl4 board\n"); 456 break; 457 case BEAGLE_NO_EEPROM: 458 printf("No EEPROM on expansion board\n"); 459 setenv("buddy", "none"); 460 break; 461 default: 462 printf("Unrecognized expansion board: %x\n", 463 expansion_config.device_vendor); 464 setenv("buddy", "unknown"); 465 } 466 467 if (expansion_config.content == 1) 468 setenv(expansion_config.env_var, expansion_config.env_setting); 469 470 twl4030_power_init(); 471 switch (get_board_revision()) { 472 case REVISION_XM_A: 473 case REVISION_XM_B: 474 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 475 break; 476 default: 477 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 478 break; 479 } 480 481 /* Set GPIO states before they are made outputs */ 482 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 483 &gpio6_base->setdataout); 484 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 485 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 486 487 /* Configure GPIOs to output */ 488 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 489 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 490 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 491 492 dieid_num_r(); 493 494 #ifdef CONFIG_VIDEO_OMAP3 495 beagle_dvi_pup(); 496 beagle_display_init(); 497 omap3_dss_enable(); 498 #endif 499 500 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 501 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 502 #endif 503 504 return 0; 505 } 506 507 /* 508 * Routine: set_muxconf_regs 509 * Description: Setting up the configuration Mux registers specific to the 510 * hardware. Many pins need to be moved from protect to primary 511 * mode. 512 */ 513 void set_muxconf_regs(void) 514 { 515 MUX_BEAGLE(); 516 } 517 518 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 519 int board_mmc_init(bd_t *bis) 520 { 521 omap_mmc_init(0, 0, 0); 522 return 0; 523 } 524 #endif 525 526 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 527 /* Call usb_stop() before starting the kernel */ 528 void show_boot_progress(int val) 529 { 530 if (val == BOOTSTAGE_ID_RUN_OS) 531 usb_stop(); 532 } 533 534 static struct omap_usbhs_board_data usbhs_bdata = { 535 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 536 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 537 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 538 }; 539 540 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 541 { 542 return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 543 } 544 545 int ehci_hcd_stop(int index) 546 { 547 return omap_ehci_hcd_stop(); 548 } 549 550 #endif /* CONFIG_USB_EHCI */ 551 552 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 553 int board_eth_init(bd_t *bis) 554 { 555 return usb_eth_initialize(bis); 556 } 557 #endif 558