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 * SPDX-License-Identifier: GPL-2.0+ 15 */ 16 #include <common.h> 17 #ifdef CONFIG_STATUS_LED 18 #include <status_led.h> 19 #endif 20 #include <twl4030.h> 21 #include <linux/mtd/nand.h> 22 #include <asm/io.h> 23 #include <asm/arch/mmc_host_def.h> 24 #include <asm/arch/mux.h> 25 #include <asm/arch/mem.h> 26 #include <asm/arch/sys_proto.h> 27 #include <asm/gpio.h> 28 #include <asm/mach-types.h> 29 #include <asm/omap_musb.h> 30 #include <asm/errno.h> 31 #include <linux/usb/ch9.h> 32 #include <linux/usb/gadget.h> 33 #include <linux/usb/musb.h> 34 #include "beagle.h" 35 #include <command.h> 36 37 #ifdef CONFIG_USB_EHCI 38 #include <usb.h> 39 #include <asm/ehci-omap.h> 40 #endif 41 42 #define TWL4030_I2C_BUS 0 43 #define EXPANSION_EEPROM_I2C_BUS 1 44 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50 45 46 #define TINCANTOOLS_ZIPPY 0x01000100 47 #define TINCANTOOLS_ZIPPY2 0x02000100 48 #define TINCANTOOLS_TRAINER 0x04000100 49 #define TINCANTOOLS_SHOWDOG 0x03000100 50 #define KBADC_BEAGLEFPGA 0x01000600 51 #define LW_BEAGLETOUCH 0x01000700 52 #define BRAINMUX_LCDOG 0x01000800 53 #define BRAINMUX_LCDOGTOUCH 0x02000800 54 #define BBTOYS_WIFI 0x01000B00 55 #define BBTOYS_VGA 0x02000B00 56 #define BBTOYS_LCD 0x03000B00 57 #define BCT_BRETTL3 0x01000F00 58 #define BCT_BRETTL4 0x02000F00 59 #define LSR_COM6L_ADPT 0x01001300 60 #define BEAGLE_NO_EEPROM 0xffffffff 61 62 DECLARE_GLOBAL_DATA_PTR; 63 64 static struct { 65 unsigned int device_vendor; 66 unsigned char revision; 67 unsigned char content; 68 char fab_revision[8]; 69 char env_var[16]; 70 char env_setting[64]; 71 } expansion_config; 72 73 /* 74 * Routine: board_init 75 * Description: Early hardware init. 76 */ 77 int board_init(void) 78 { 79 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 80 /* board id for Linux */ 81 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 82 /* boot param addr */ 83 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 84 85 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) 86 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); 87 #endif 88 89 return 0; 90 } 91 92 /* 93 * Routine: get_board_revision 94 * Description: Detect if we are running on a Beagle revision Ax/Bx, 95 * C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading 96 * the level of GPIO173, GPIO172 and GPIO171. This should 97 * result in 98 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 99 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 100 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 101 * GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx 102 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx 103 */ 104 static int get_board_revision(void) 105 { 106 int revision; 107 108 if (!gpio_request(171, "") && 109 !gpio_request(172, "") && 110 !gpio_request(173, "")) { 111 112 gpio_direction_input(171); 113 gpio_direction_input(172); 114 gpio_direction_input(173); 115 116 revision = gpio_get_value(173) << 2 | 117 gpio_get_value(172) << 1 | 118 gpio_get_value(171); 119 } else { 120 printf("Error: unable to acquire board revision GPIOs\n"); 121 revision = -1; 122 } 123 124 return revision; 125 } 126 127 #ifdef CONFIG_SPL_BUILD 128 /* 129 * Routine: get_board_mem_timings 130 * Description: If we use SPL then there is no x-loader nor config header 131 * so we have to setup the DDR timings ourself on both banks. 132 */ 133 void get_board_mem_timings(struct board_sdrc_timings *timings) 134 { 135 int pop_mfr, pop_id; 136 137 /* 138 * We need to identify what PoP memory is on the board so that 139 * we know what timings to use. If we can't identify it then 140 * we know it's an xM. To map the ID values please see nand_ids.c 141 */ 142 identify_nand_chip(&pop_mfr, &pop_id); 143 144 timings->mr = MICRON_V_MR_165; 145 switch (get_board_revision()) { 146 case REVISION_C4: 147 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 148 /* 512MB DDR */ 149 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 150 timings->ctrla = NUMONYX_V_ACTIMA_165; 151 timings->ctrlb = NUMONYX_V_ACTIMB_165; 152 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 153 break; 154 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 155 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 156 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 157 timings->ctrla = MICRON_V_ACTIMA_165; 158 timings->ctrlb = MICRON_V_ACTIMB_165; 159 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 160 break; 161 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 162 /* Beagleboard Rev C5, 256MB DDR */ 163 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 164 timings->ctrla = MICRON_V_ACTIMA_200; 165 timings->ctrlb = MICRON_V_ACTIMB_200; 166 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 167 break; 168 } 169 case REVISION_XM_A: 170 case REVISION_XM_B: 171 case REVISION_XM_C: 172 if (pop_mfr == 0) { 173 /* 256MB DDR */ 174 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 175 timings->ctrla = MICRON_V_ACTIMA_200; 176 timings->ctrlb = MICRON_V_ACTIMB_200; 177 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 178 } else { 179 /* 512MB DDR */ 180 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 181 timings->ctrla = NUMONYX_V_ACTIMA_165; 182 timings->ctrlb = NUMONYX_V_ACTIMB_165; 183 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 184 } 185 break; 186 default: 187 /* Assume 128MB and Micron/165MHz timings to be safe */ 188 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 189 timings->ctrla = MICRON_V_ACTIMA_165; 190 timings->ctrlb = MICRON_V_ACTIMB_165; 191 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 192 } 193 } 194 #endif 195 196 /* 197 * Routine: get_expansion_id 198 * Description: This function checks for expansion board by checking I2C 199 * bus 1 for the availability of an AT24C01B serial EEPROM. 200 * returns the device_vendor field from the EEPROM 201 */ 202 static unsigned int get_expansion_id(void) 203 { 204 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 205 206 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 207 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 208 i2c_set_bus_num(TWL4030_I2C_BUS); 209 return BEAGLE_NO_EEPROM; 210 } 211 212 /* read configuration data */ 213 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 214 sizeof(expansion_config)); 215 216 /* retry reading configuration data with 16bit addressing */ 217 if ((expansion_config.device_vendor == 0xFFFFFF00) || 218 (expansion_config.device_vendor == 0xFFFFFFFF)) { 219 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n"); 220 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config, 221 sizeof(expansion_config)); 222 } 223 224 i2c_set_bus_num(TWL4030_I2C_BUS); 225 226 return expansion_config.device_vendor; 227 } 228 229 #ifdef CONFIG_VIDEO_OMAP3 230 /* 231 * Configure DSS to display background color on DVID 232 * Configure VENC to display color bar on S-Video 233 */ 234 static void beagle_display_init(void) 235 { 236 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 237 switch (get_board_revision()) { 238 case REVISION_AXBX: 239 case REVISION_CX: 240 case REVISION_C4: 241 omap3_dss_panel_config(&dvid_cfg); 242 break; 243 case REVISION_XM_A: 244 case REVISION_XM_B: 245 case REVISION_XM_C: 246 default: 247 omap3_dss_panel_config(&dvid_cfg_xm); 248 break; 249 } 250 } 251 252 /* 253 * Enable DVI power 254 */ 255 static void beagle_dvi_pup(void) 256 { 257 uchar val; 258 259 switch (get_board_revision()) { 260 case REVISION_AXBX: 261 case REVISION_CX: 262 case REVISION_C4: 263 case REVISION_XM_A: 264 gpio_request(170, ""); 265 gpio_direction_output(170, 0); 266 gpio_set_value(170, 1); 267 break; 268 case REVISION_XM_B: 269 case REVISION_XM_C: 270 default: 271 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 272 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 273 274 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 275 val |= 4; 276 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 277 278 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 279 val |= 4; 280 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 281 break; 282 } 283 } 284 #endif 285 286 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 287 static struct musb_hdrc_config musb_config = { 288 .multipoint = 1, 289 .dyn_fifo = 1, 290 .num_eps = 16, 291 .ram_bits = 12, 292 }; 293 294 static struct omap_musb_board_data musb_board_data = { 295 .interface_type = MUSB_INTERFACE_ULPI, 296 }; 297 298 static struct musb_hdrc_platform_data musb_plat = { 299 #if defined(CONFIG_MUSB_HOST) 300 .mode = MUSB_HOST, 301 #elif defined(CONFIG_MUSB_GADGET) 302 .mode = MUSB_PERIPHERAL, 303 #else 304 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 305 #endif 306 .config = &musb_config, 307 .power = 100, 308 .platform_ops = &omap2430_ops, 309 .board_data = &musb_board_data, 310 }; 311 #endif 312 313 /* 314 * Routine: misc_init_r 315 * Description: Configure board specific parts 316 */ 317 int misc_init_r(void) 318 { 319 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 320 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 321 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 322 323 /* Enable i2c2 pullup resisters */ 324 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 325 326 switch (get_board_revision()) { 327 case REVISION_AXBX: 328 printf("Beagle Rev Ax/Bx\n"); 329 setenv("beaglerev", "AxBx"); 330 break; 331 case REVISION_CX: 332 printf("Beagle Rev C1/C2/C3\n"); 333 setenv("beaglerev", "Cx"); 334 MUX_BEAGLE_C(); 335 break; 336 case REVISION_C4: 337 printf("Beagle Rev C4\n"); 338 setenv("beaglerev", "C4"); 339 MUX_BEAGLE_C(); 340 /* Set VAUX2 to 1.8V for EHCI PHY */ 341 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 342 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 343 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 344 TWL4030_PM_RECEIVER_DEV_GRP_P1); 345 break; 346 case REVISION_XM_A: 347 printf("Beagle xM Rev A\n"); 348 setenv("beaglerev", "xMA"); 349 MUX_BEAGLE_XM(); 350 /* Set VAUX2 to 1.8V for EHCI PHY */ 351 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 352 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 353 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 354 TWL4030_PM_RECEIVER_DEV_GRP_P1); 355 break; 356 case REVISION_XM_B: 357 printf("Beagle xM Rev B\n"); 358 setenv("beaglerev", "xMB"); 359 MUX_BEAGLE_XM(); 360 /* Set VAUX2 to 1.8V for EHCI PHY */ 361 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 362 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 363 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 364 TWL4030_PM_RECEIVER_DEV_GRP_P1); 365 break; 366 case REVISION_XM_C: 367 printf("Beagle xM Rev C\n"); 368 setenv("beaglerev", "xMC"); 369 MUX_BEAGLE_XM(); 370 /* Set VAUX2 to 1.8V for EHCI PHY */ 371 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 372 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 373 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 374 TWL4030_PM_RECEIVER_DEV_GRP_P1); 375 break; 376 default: 377 printf("Beagle unknown 0x%02x\n", get_board_revision()); 378 MUX_BEAGLE_XM(); 379 /* Set VAUX2 to 1.8V for EHCI PHY */ 380 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 381 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 382 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 383 TWL4030_PM_RECEIVER_DEV_GRP_P1); 384 } 385 386 switch (get_expansion_id()) { 387 case TINCANTOOLS_ZIPPY: 388 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 389 expansion_config.revision, 390 expansion_config.fab_revision); 391 MUX_TINCANTOOLS_ZIPPY(); 392 setenv("buddy", "zippy"); 393 break; 394 case TINCANTOOLS_ZIPPY2: 395 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 396 expansion_config.revision, 397 expansion_config.fab_revision); 398 MUX_TINCANTOOLS_ZIPPY(); 399 setenv("buddy", "zippy2"); 400 break; 401 case TINCANTOOLS_TRAINER: 402 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 403 expansion_config.revision, 404 expansion_config.fab_revision); 405 MUX_TINCANTOOLS_ZIPPY(); 406 MUX_TINCANTOOLS_TRAINER(); 407 setenv("buddy", "trainer"); 408 break; 409 case TINCANTOOLS_SHOWDOG: 410 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 411 expansion_config.revision, 412 expansion_config.fab_revision); 413 /* Place holder for DSS2 definition for showdog lcd */ 414 setenv("defaultdisplay", "showdoglcd"); 415 setenv("buddy", "showdog"); 416 break; 417 case KBADC_BEAGLEFPGA: 418 printf("Recognized KBADC Beagle FPGA board\n"); 419 MUX_KBADC_BEAGLEFPGA(); 420 setenv("buddy", "beaglefpga"); 421 break; 422 case LW_BEAGLETOUCH: 423 printf("Recognized Liquidware BeagleTouch board\n"); 424 setenv("buddy", "beagletouch"); 425 break; 426 case BRAINMUX_LCDOG: 427 printf("Recognized Brainmux LCDog board\n"); 428 setenv("buddy", "lcdog"); 429 break; 430 case BRAINMUX_LCDOGTOUCH: 431 printf("Recognized Brainmux LCDog Touch board\n"); 432 setenv("buddy", "lcdogtouch"); 433 break; 434 case BBTOYS_WIFI: 435 printf("Recognized BeagleBoardToys WiFi board\n"); 436 MUX_BBTOYS_WIFI() 437 setenv("buddy", "bbtoys-wifi"); 438 break;; 439 case BBTOYS_VGA: 440 printf("Recognized BeagleBoardToys VGA board\n"); 441 break;; 442 case BBTOYS_LCD: 443 printf("Recognized BeagleBoardToys LCD board\n"); 444 break;; 445 case BCT_BRETTL3: 446 printf("Recognized bct electronic GmbH brettl3 board\n"); 447 break; 448 case BCT_BRETTL4: 449 printf("Recognized bct electronic GmbH brettl4 board\n"); 450 break; 451 case LSR_COM6L_ADPT: 452 printf("Recognized LSR COM6L Adapter Board\n"); 453 MUX_BBTOYS_WIFI() 454 setenv("buddy", "lsr-com6l-adpt"); 455 break; 456 case BEAGLE_NO_EEPROM: 457 printf("No EEPROM on expansion board\n"); 458 setenv("buddy", "none"); 459 break; 460 default: 461 printf("Unrecognized expansion board: %x\n", 462 expansion_config.device_vendor); 463 setenv("buddy", "unknown"); 464 } 465 466 if (expansion_config.content == 1) 467 setenv(expansion_config.env_var, expansion_config.env_setting); 468 469 twl4030_power_init(); 470 switch (get_board_revision()) { 471 case REVISION_XM_A: 472 case REVISION_XM_B: 473 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 474 break; 475 default: 476 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 477 break; 478 } 479 480 /* Set GPIO states before they are made outputs */ 481 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 482 &gpio6_base->setdataout); 483 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 484 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 485 486 /* Configure GPIOs to output */ 487 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 488 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 489 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 490 491 dieid_num_r(); 492 493 #ifdef CONFIG_VIDEO_OMAP3 494 beagle_dvi_pup(); 495 beagle_display_init(); 496 omap3_dss_enable(); 497 #endif 498 499 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 500 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 501 #endif 502 503 return 0; 504 } 505 506 /* 507 * Routine: set_muxconf_regs 508 * Description: Setting up the configuration Mux registers specific to the 509 * hardware. Many pins need to be moved from protect to primary 510 * mode. 511 */ 512 void set_muxconf_regs(void) 513 { 514 MUX_BEAGLE(); 515 } 516 517 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 518 int board_mmc_init(bd_t *bis) 519 { 520 return omap_mmc_init(0, 0, 0, -1, -1); 521 } 522 #endif 523 524 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 525 /* Call usb_stop() before starting the kernel */ 526 void show_boot_progress(int val) 527 { 528 if (val == BOOTSTAGE_ID_RUN_OS) 529 usb_stop(); 530 } 531 532 static struct omap_usbhs_board_data usbhs_bdata = { 533 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 534 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 535 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 536 }; 537 538 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 539 { 540 return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 541 } 542 543 int ehci_hcd_stop(int index) 544 { 545 return omap_ehci_hcd_stop(); 546 } 547 548 #endif /* CONFIG_USB_EHCI */ 549 550 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 551 int board_eth_init(bd_t *bis) 552 { 553 return usb_eth_initialize(bis); 554 } 555 #endif 556