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(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl, 148 u32 *mr) 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 *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 *mcfg = NUMONYX_V_MCFG_165(512 << 20); 165 *ctrla = NUMONYX_V_ACTIMA_165; 166 *ctrlb = NUMONYX_V_ACTIMB_165; 167 *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 *mcfg = MICRON_V_MCFG_165(128 << 20); 172 *ctrla = MICRON_V_ACTIMA_165; 173 *ctrlb = MICRON_V_ACTIMB_165; 174 *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 *mcfg = MICRON_V_MCFG_200(256 << 20); 179 *ctrla = MICRON_V_ACTIMA_200; 180 *ctrlb = MICRON_V_ACTIMB_200; 181 *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 *mcfg = MICRON_V_MCFG_200(256 << 20); 190 *ctrla = MICRON_V_ACTIMA_200; 191 *ctrlb = MICRON_V_ACTIMB_200; 192 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 193 } else { 194 /* 512MB DDR */ 195 *mcfg = NUMONYX_V_MCFG_165(512 << 20); 196 *ctrla = NUMONYX_V_ACTIMA_165; 197 *ctrlb = NUMONYX_V_ACTIMB_165; 198 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 199 } 200 break; 201 default: 202 /* Assume 128MB and Micron/165MHz timings to be safe */ 203 *mcfg = MICRON_V_MCFG_165(128 << 20); 204 *ctrla = MICRON_V_ACTIMA_165; 205 *ctrlb = MICRON_V_ACTIMB_165; 206 *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 i2c_set_bus_num(TWL4030_I2C_BUS); 232 233 return expansion_config.device_vendor; 234 } 235 236 #ifdef CONFIG_VIDEO_OMAP3 237 /* 238 * Configure DSS to display background color on DVID 239 * Configure VENC to display color bar on S-Video 240 */ 241 static void beagle_display_init(void) 242 { 243 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 244 switch (get_board_revision()) { 245 case REVISION_AXBX: 246 case REVISION_CX: 247 case REVISION_C4: 248 omap3_dss_panel_config(&dvid_cfg); 249 break; 250 case REVISION_XM_A: 251 case REVISION_XM_B: 252 case REVISION_XM_C: 253 default: 254 omap3_dss_panel_config(&dvid_cfg_xm); 255 break; 256 } 257 } 258 259 /* 260 * Enable DVI power 261 */ 262 static void beagle_dvi_pup(void) 263 { 264 uchar val; 265 266 switch (get_board_revision()) { 267 case REVISION_AXBX: 268 case REVISION_CX: 269 case REVISION_C4: 270 case REVISION_XM_A: 271 gpio_request(170, ""); 272 gpio_direction_output(170, 0); 273 gpio_set_value(170, 1); 274 break; 275 case REVISION_XM_B: 276 case REVISION_XM_C: 277 default: 278 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 279 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 280 281 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 282 val |= 4; 283 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 284 285 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 286 val |= 4; 287 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 288 break; 289 } 290 } 291 #endif 292 293 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 294 static struct musb_hdrc_config musb_config = { 295 .multipoint = 1, 296 .dyn_fifo = 1, 297 .num_eps = 16, 298 .ram_bits = 12, 299 }; 300 301 static struct omap_musb_board_data musb_board_data = { 302 .interface_type = MUSB_INTERFACE_ULPI, 303 }; 304 305 static struct musb_hdrc_platform_data musb_plat = { 306 #if defined(CONFIG_MUSB_HOST) 307 .mode = MUSB_HOST, 308 #elif defined(CONFIG_MUSB_GADGET) 309 .mode = MUSB_PERIPHERAL, 310 #else 311 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 312 #endif 313 .config = &musb_config, 314 .power = 100, 315 .platform_ops = &omap2430_ops, 316 .board_data = &musb_board_data, 317 }; 318 #endif 319 320 /* 321 * Routine: misc_init_r 322 * Description: Configure board specific parts 323 */ 324 int misc_init_r(void) 325 { 326 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 327 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 328 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 329 330 /* Enable i2c2 pullup resisters */ 331 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 332 333 switch (get_board_revision()) { 334 case REVISION_AXBX: 335 printf("Beagle Rev Ax/Bx\n"); 336 setenv("beaglerev", "AxBx"); 337 break; 338 case REVISION_CX: 339 printf("Beagle Rev C1/C2/C3\n"); 340 setenv("beaglerev", "Cx"); 341 MUX_BEAGLE_C(); 342 break; 343 case REVISION_C4: 344 printf("Beagle Rev C4\n"); 345 setenv("beaglerev", "C4"); 346 MUX_BEAGLE_C(); 347 /* Set VAUX2 to 1.8V for EHCI PHY */ 348 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 349 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 350 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 351 TWL4030_PM_RECEIVER_DEV_GRP_P1); 352 break; 353 case REVISION_XM_A: 354 printf("Beagle xM Rev A\n"); 355 setenv("beaglerev", "xMA"); 356 MUX_BEAGLE_XM(); 357 /* Set VAUX2 to 1.8V for EHCI PHY */ 358 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 359 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 360 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 361 TWL4030_PM_RECEIVER_DEV_GRP_P1); 362 break; 363 case REVISION_XM_B: 364 printf("Beagle xM Rev B\n"); 365 setenv("beaglerev", "xMB"); 366 MUX_BEAGLE_XM(); 367 /* Set VAUX2 to 1.8V for EHCI PHY */ 368 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 369 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 370 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 371 TWL4030_PM_RECEIVER_DEV_GRP_P1); 372 break; 373 case REVISION_XM_C: 374 printf("Beagle xM Rev C\n"); 375 setenv("beaglerev", "xMC"); 376 MUX_BEAGLE_XM(); 377 /* Set VAUX2 to 1.8V for EHCI PHY */ 378 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 379 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 380 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 381 TWL4030_PM_RECEIVER_DEV_GRP_P1); 382 break; 383 default: 384 printf("Beagle unknown 0x%02x\n", get_board_revision()); 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 } 392 393 switch (get_expansion_id()) { 394 case TINCANTOOLS_ZIPPY: 395 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 396 expansion_config.revision, 397 expansion_config.fab_revision); 398 MUX_TINCANTOOLS_ZIPPY(); 399 setenv("buddy", "zippy"); 400 break; 401 case TINCANTOOLS_ZIPPY2: 402 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 403 expansion_config.revision, 404 expansion_config.fab_revision); 405 MUX_TINCANTOOLS_ZIPPY(); 406 setenv("buddy", "zippy2"); 407 break; 408 case TINCANTOOLS_TRAINER: 409 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 410 expansion_config.revision, 411 expansion_config.fab_revision); 412 MUX_TINCANTOOLS_ZIPPY(); 413 MUX_TINCANTOOLS_TRAINER(); 414 setenv("buddy", "trainer"); 415 break; 416 case TINCANTOOLS_SHOWDOG: 417 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 418 expansion_config.revision, 419 expansion_config.fab_revision); 420 /* Place holder for DSS2 definition for showdog lcd */ 421 setenv("defaultdisplay", "showdoglcd"); 422 setenv("buddy", "showdog"); 423 break; 424 case KBADC_BEAGLEFPGA: 425 printf("Recognized KBADC Beagle FPGA board\n"); 426 MUX_KBADC_BEAGLEFPGA(); 427 setenv("buddy", "beaglefpga"); 428 break; 429 case LW_BEAGLETOUCH: 430 printf("Recognized Liquidware BeagleTouch board\n"); 431 setenv("buddy", "beagletouch"); 432 break; 433 case BRAINMUX_LCDOG: 434 printf("Recognized Brainmux LCDog board\n"); 435 setenv("buddy", "lcdog"); 436 break; 437 case BRAINMUX_LCDOGTOUCH: 438 printf("Recognized Brainmux LCDog Touch board\n"); 439 setenv("buddy", "lcdogtouch"); 440 break; 441 case BBTOYS_WIFI: 442 printf("Recognized BeagleBoardToys WiFi board\n"); 443 MUX_BBTOYS_WIFI() 444 setenv("buddy", "bbtoys-wifi"); 445 break;; 446 case BBTOYS_VGA: 447 printf("Recognized BeagleBoardToys VGA board\n"); 448 break;; 449 case BBTOYS_LCD: 450 printf("Recognized BeagleBoardToys LCD board\n"); 451 break;; 452 case BCT_BRETTL3: 453 printf("Recognized bct electronic GmbH brettl3 board\n"); 454 break; 455 case BCT_BRETTL4: 456 printf("Recognized bct electronic GmbH brettl4 board\n"); 457 break; 458 case BEAGLE_NO_EEPROM: 459 printf("No EEPROM on expansion board\n"); 460 setenv("buddy", "none"); 461 break; 462 default: 463 printf("Unrecognized expansion board: %x\n", 464 expansion_config.device_vendor); 465 setenv("buddy", "unknown"); 466 } 467 468 if (expansion_config.content == 1) 469 setenv(expansion_config.env_var, expansion_config.env_setting); 470 471 twl4030_power_init(); 472 switch (get_board_revision()) { 473 case REVISION_XM_A: 474 case REVISION_XM_B: 475 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 476 break; 477 default: 478 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 479 break; 480 } 481 482 /* Set GPIO states before they are made outputs */ 483 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 484 &gpio6_base->setdataout); 485 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 486 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 487 488 /* Configure GPIOs to output */ 489 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 490 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 491 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 492 493 dieid_num_r(); 494 495 #ifdef CONFIG_VIDEO_OMAP3 496 beagle_dvi_pup(); 497 beagle_display_init(); 498 omap3_dss_enable(); 499 #endif 500 501 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 502 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 503 #endif 504 505 return 0; 506 } 507 508 /* 509 * Routine: set_muxconf_regs 510 * Description: Setting up the configuration Mux registers specific to the 511 * hardware. Many pins need to be moved from protect to primary 512 * mode. 513 */ 514 void set_muxconf_regs(void) 515 { 516 MUX_BEAGLE(); 517 } 518 519 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 520 int board_mmc_init(bd_t *bis) 521 { 522 omap_mmc_init(0, 0, 0); 523 return 0; 524 } 525 #endif 526 527 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 528 /* Call usb_stop() before starting the kernel */ 529 void show_boot_progress(int val) 530 { 531 if (val == BOOTSTAGE_ID_RUN_OS) 532 usb_stop(); 533 } 534 535 static struct omap_usbhs_board_data usbhs_bdata = { 536 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 537 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 538 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 539 }; 540 541 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 542 { 543 return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 544 } 545 546 int ehci_hcd_stop(int index) 547 { 548 return omap_ehci_hcd_stop(); 549 } 550 551 #endif /* CONFIG_USB_EHCI */ 552 553 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 554 int board_eth_init(bd_t *bis) 555 { 556 return usb_eth_initialize(bis); 557 } 558 #endif 559