1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2004-2011 4 * Texas Instruments, <www.ti.com> 5 * 6 * Author : 7 * Sunil Kumar <sunilsaini05@gmail.com> 8 * Shashi Ranjan <shashiranjanmca05@gmail.com> 9 * 10 * Derived from Beagle Board and 3430 SDP code by 11 * Richard Woodruff <r-woodruff2@ti.com> 12 * Syed Mohammed Khasim <khasim@ti.com> 13 * 14 */ 15 #include <common.h> 16 #include <dm.h> 17 #include <ns16550.h> 18 #ifdef CONFIG_LED_STATUS 19 #include <status_led.h> 20 #endif 21 #include <twl4030.h> 22 #include <linux/mtd/rawnand.h> 23 #include <asm/io.h> 24 #include <asm/arch/mmc_host_def.h> 25 #include <asm/arch/mux.h> 26 #include <asm/arch/mem.h> 27 #include <asm/arch/sys_proto.h> 28 #include <asm/gpio.h> 29 #include <asm/mach-types.h> 30 #include <asm/omap_musb.h> 31 #include <linux/errno.h> 32 #include <linux/usb/ch9.h> 33 #include <linux/usb/gadget.h> 34 #include <linux/usb/musb.h> 35 #include "beagle.h" 36 #include <command.h> 37 38 #ifdef CONFIG_USB_EHCI_HCD 39 #include <usb.h> 40 #include <asm/ehci-omap.h> 41 #endif 42 43 #define TWL4030_I2C_BUS 0 44 #define EXPANSION_EEPROM_I2C_BUS 1 45 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50 46 47 #define TINCANTOOLS_ZIPPY 0x01000100 48 #define TINCANTOOLS_ZIPPY2 0x02000100 49 #define TINCANTOOLS_TRAINER 0x04000100 50 #define TINCANTOOLS_SHOWDOG 0x03000100 51 #define KBADC_BEAGLEFPGA 0x01000600 52 #define LW_BEAGLETOUCH 0x01000700 53 #define BRAINMUX_LCDOG 0x01000800 54 #define BRAINMUX_LCDOGTOUCH 0x02000800 55 #define BBTOYS_WIFI 0x01000B00 56 #define BBTOYS_VGA 0x02000B00 57 #define BBTOYS_LCD 0x03000B00 58 #define BCT_BRETTL3 0x01000F00 59 #define BCT_BRETTL4 0x02000F00 60 #define LSR_COM6L_ADPT 0x01001300 61 #define BEAGLE_NO_EEPROM 0xffffffff 62 63 DECLARE_GLOBAL_DATA_PTR; 64 65 static struct { 66 unsigned int device_vendor; 67 unsigned char revision; 68 unsigned char content; 69 char fab_revision[8]; 70 char env_var[16]; 71 char env_setting[64]; 72 } expansion_config; 73 74 static const struct ns16550_platdata beagle_serial = { 75 .base = OMAP34XX_UART3, 76 .reg_shift = 2, 77 .clock = V_NS16550_CLK, 78 .fcr = UART_FCR_DEFVAL, 79 }; 80 81 U_BOOT_DEVICE(beagle_uart) = { 82 "ns16550_serial", 83 &beagle_serial 84 }; 85 86 /* 87 * Routine: board_init 88 * Description: Early hardware init. 89 */ 90 int board_init(void) 91 { 92 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 93 /* board id for Linux */ 94 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 95 /* boot param addr */ 96 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 97 98 #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE) 99 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON); 100 #endif 101 102 return 0; 103 } 104 105 #if defined(CONFIG_SPL_OS_BOOT) 106 int spl_start_uboot(void) 107 { 108 /* break into full u-boot on 'c' */ 109 if (serial_tstc() && serial_getc() == 'c') 110 return 1; 111 112 return 0; 113 } 114 #endif /* CONFIG_SPL_OS_BOOT */ 115 116 /* 117 * Routine: get_board_revision 118 * Description: Detect if we are running on a Beagle revision Ax/Bx, 119 * C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading 120 * the level of GPIO173, GPIO172 and GPIO171. This should 121 * result in 122 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 123 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 124 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 125 * GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx 126 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx 127 */ 128 static int get_board_revision(void) 129 { 130 static int revision = -1; 131 132 if (revision == -1) { 133 if (!gpio_request(171, "rev0") && 134 !gpio_request(172, "rev1") && 135 !gpio_request(173, "rev2")) { 136 gpio_direction_input(171); 137 gpio_direction_input(172); 138 gpio_direction_input(173); 139 140 revision = gpio_get_value(173) << 2 | 141 gpio_get_value(172) << 1 | 142 gpio_get_value(171); 143 } else { 144 printf("Error: unable to acquire board revision GPIOs\n"); 145 } 146 } 147 148 return revision; 149 } 150 151 #ifdef CONFIG_SPL_BUILD 152 /* 153 * Routine: get_board_mem_timings 154 * Description: If we use SPL then there is no x-loader nor config header 155 * so we have to setup the DDR timings ourself on both banks. 156 */ 157 void get_board_mem_timings(struct board_sdrc_timings *timings) 158 { 159 int pop_mfr, pop_id; 160 161 /* 162 * We need to identify what PoP memory is on the board so that 163 * we know what timings to use. If we can't identify it then 164 * we know it's an xM. To map the ID values please see nand_ids.c 165 */ 166 identify_nand_chip(&pop_mfr, &pop_id); 167 168 timings->mr = MICRON_V_MR_165; 169 switch (get_board_revision()) { 170 case REVISION_C4: 171 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 172 /* 512MB DDR */ 173 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 174 timings->ctrla = NUMONYX_V_ACTIMA_165; 175 timings->ctrlb = NUMONYX_V_ACTIMB_165; 176 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 177 break; 178 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 179 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 180 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 181 timings->ctrla = MICRON_V_ACTIMA_165; 182 timings->ctrlb = MICRON_V_ACTIMB_165; 183 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 184 break; 185 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 186 /* Beagleboard Rev C5, 256MB DDR */ 187 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 188 timings->ctrla = MICRON_V_ACTIMA_200; 189 timings->ctrlb = MICRON_V_ACTIMB_200; 190 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 191 break; 192 } 193 case REVISION_XM_AB: 194 case REVISION_XM_C: 195 if (pop_mfr == 0) { 196 /* 256MB DDR */ 197 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 198 timings->ctrla = MICRON_V_ACTIMA_200; 199 timings->ctrlb = MICRON_V_ACTIMB_200; 200 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 201 } else { 202 /* 512MB DDR */ 203 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 204 timings->ctrla = NUMONYX_V_ACTIMA_165; 205 timings->ctrlb = NUMONYX_V_ACTIMB_165; 206 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 207 } 208 break; 209 default: 210 /* Assume 128MB and Micron/165MHz timings to be safe */ 211 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 212 timings->ctrla = MICRON_V_ACTIMA_165; 213 timings->ctrlb = MICRON_V_ACTIMB_165; 214 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 215 } 216 } 217 #endif 218 219 /* 220 * Routine: get_expansion_id 221 * Description: This function checks for expansion board by checking I2C 222 * bus 1 for the availability of an AT24C01B serial EEPROM. 223 * returns the device_vendor field from the EEPROM 224 */ 225 static unsigned int get_expansion_id(void) 226 { 227 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 228 229 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 230 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 231 i2c_set_bus_num(TWL4030_I2C_BUS); 232 return BEAGLE_NO_EEPROM; 233 } 234 235 /* read configuration data */ 236 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 237 sizeof(expansion_config)); 238 239 /* retry reading configuration data with 16bit addressing */ 240 if ((expansion_config.device_vendor == 0xFFFFFF00) || 241 (expansion_config.device_vendor == 0xFFFFFFFF)) { 242 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n"); 243 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config, 244 sizeof(expansion_config)); 245 } 246 247 i2c_set_bus_num(TWL4030_I2C_BUS); 248 249 return expansion_config.device_vendor; 250 } 251 252 #ifdef CONFIG_VIDEO_OMAP3 253 /* 254 * Configure DSS to display background color on DVID 255 * Configure VENC to display color bar on S-Video 256 */ 257 static void beagle_display_init(void) 258 { 259 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 260 switch (get_board_revision()) { 261 case REVISION_AXBX: 262 case REVISION_CX: 263 case REVISION_C4: 264 omap3_dss_panel_config(&dvid_cfg); 265 break; 266 case REVISION_XM_AB: 267 case REVISION_XM_C: 268 default: 269 omap3_dss_panel_config(&dvid_cfg_xm); 270 break; 271 } 272 } 273 274 /* 275 * Enable DVI power 276 */ 277 static void beagle_dvi_pup(void) 278 { 279 uchar val; 280 281 switch (get_board_revision()) { 282 case REVISION_AXBX: 283 case REVISION_CX: 284 case REVISION_C4: 285 gpio_request(170, "dvi"); 286 gpio_direction_output(170, 0); 287 gpio_set_value(170, 1); 288 break; 289 case REVISION_XM_AB: 290 case REVISION_XM_C: 291 default: 292 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 293 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 294 295 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 296 val |= 4; 297 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 298 299 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 300 val |= 4; 301 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 302 break; 303 } 304 } 305 #endif 306 307 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 308 static struct musb_hdrc_config musb_config = { 309 .multipoint = 1, 310 .dyn_fifo = 1, 311 .num_eps = 16, 312 .ram_bits = 12, 313 }; 314 315 static struct omap_musb_board_data musb_board_data = { 316 .interface_type = MUSB_INTERFACE_ULPI, 317 }; 318 319 static struct musb_hdrc_platform_data musb_plat = { 320 #if defined(CONFIG_USB_MUSB_HOST) 321 .mode = MUSB_HOST, 322 #elif defined(CONFIG_USB_MUSB_GADGET) 323 .mode = MUSB_PERIPHERAL, 324 #else 325 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET" 326 #endif 327 .config = &musb_config, 328 .power = 100, 329 .platform_ops = &omap2430_ops, 330 .board_data = &musb_board_data, 331 }; 332 #endif 333 334 /* 335 * Routine: misc_init_r 336 * Description: Configure board specific parts 337 */ 338 int misc_init_r(void) 339 { 340 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 341 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 342 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 343 bool generate_fake_mac = false; 344 u32 value; 345 346 /* Enable i2c2 pullup resisters */ 347 value = readl(&prog_io_base->io1); 348 value &= ~(PRG_I2C2_PULLUPRESX); 349 writel(value, &prog_io_base->io1); 350 351 switch (get_board_revision()) { 352 case REVISION_AXBX: 353 printf("Beagle Rev Ax/Bx\n"); 354 env_set("beaglerev", "AxBx"); 355 break; 356 case REVISION_CX: 357 printf("Beagle Rev C1/C2/C3\n"); 358 env_set("beaglerev", "Cx"); 359 MUX_BEAGLE_C(); 360 break; 361 case REVISION_C4: 362 printf("Beagle Rev C4\n"); 363 env_set("beaglerev", "C4"); 364 MUX_BEAGLE_C(); 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_AB: 372 printf("Beagle xM Rev A/B\n"); 373 env_set("beaglerev", "xMAB"); 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 generate_fake_mac = true; 381 break; 382 case REVISION_XM_C: 383 printf("Beagle xM Rev C\n"); 384 env_set("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 generate_fake_mac = true; 392 break; 393 default: 394 printf("Beagle unknown 0x%02x\n", get_board_revision()); 395 MUX_BEAGLE_XM(); 396 /* Set VAUX2 to 1.8V for EHCI PHY */ 397 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 398 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 399 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 400 TWL4030_PM_RECEIVER_DEV_GRP_P1); 401 generate_fake_mac = true; 402 } 403 404 switch (get_expansion_id()) { 405 case TINCANTOOLS_ZIPPY: 406 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 407 expansion_config.revision, 408 expansion_config.fab_revision); 409 MUX_TINCANTOOLS_ZIPPY(); 410 env_set("buddy", "zippy"); 411 break; 412 case TINCANTOOLS_ZIPPY2: 413 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 414 expansion_config.revision, 415 expansion_config.fab_revision); 416 MUX_TINCANTOOLS_ZIPPY(); 417 env_set("buddy", "zippy2"); 418 break; 419 case TINCANTOOLS_TRAINER: 420 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 421 expansion_config.revision, 422 expansion_config.fab_revision); 423 MUX_TINCANTOOLS_ZIPPY(); 424 MUX_TINCANTOOLS_TRAINER(); 425 env_set("buddy", "trainer"); 426 break; 427 case TINCANTOOLS_SHOWDOG: 428 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 429 expansion_config.revision, 430 expansion_config.fab_revision); 431 /* Place holder for DSS2 definition for showdog lcd */ 432 env_set("defaultdisplay", "showdoglcd"); 433 env_set("buddy", "showdog"); 434 break; 435 case KBADC_BEAGLEFPGA: 436 printf("Recognized KBADC Beagle FPGA board\n"); 437 MUX_KBADC_BEAGLEFPGA(); 438 env_set("buddy", "beaglefpga"); 439 break; 440 case LW_BEAGLETOUCH: 441 printf("Recognized Liquidware BeagleTouch board\n"); 442 env_set("buddy", "beagletouch"); 443 break; 444 case BRAINMUX_LCDOG: 445 printf("Recognized Brainmux LCDog board\n"); 446 env_set("buddy", "lcdog"); 447 break; 448 case BRAINMUX_LCDOGTOUCH: 449 printf("Recognized Brainmux LCDog Touch board\n"); 450 env_set("buddy", "lcdogtouch"); 451 break; 452 case BBTOYS_WIFI: 453 printf("Recognized BeagleBoardToys WiFi board\n"); 454 MUX_BBTOYS_WIFI() 455 env_set("buddy", "bbtoys-wifi"); 456 break; 457 case BBTOYS_VGA: 458 printf("Recognized BeagleBoardToys VGA board\n"); 459 break; 460 case BBTOYS_LCD: 461 printf("Recognized BeagleBoardToys LCD board\n"); 462 break; 463 case BCT_BRETTL3: 464 printf("Recognized bct electronic GmbH brettl3 board\n"); 465 break; 466 case BCT_BRETTL4: 467 printf("Recognized bct electronic GmbH brettl4 board\n"); 468 break; 469 case LSR_COM6L_ADPT: 470 printf("Recognized LSR COM6L Adapter Board\n"); 471 MUX_BBTOYS_WIFI() 472 env_set("buddy", "lsr-com6l-adpt"); 473 break; 474 case BEAGLE_NO_EEPROM: 475 printf("No EEPROM on expansion board\n"); 476 env_set("buddy", "none"); 477 break; 478 default: 479 printf("Unrecognized expansion board: %x\n", 480 expansion_config.device_vendor); 481 env_set("buddy", "unknown"); 482 } 483 484 if (expansion_config.content == 1) 485 env_set(expansion_config.env_var, expansion_config.env_setting); 486 487 twl4030_power_init(); 488 switch (get_board_revision()) { 489 case REVISION_XM_AB: 490 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 491 break; 492 default: 493 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 494 break; 495 } 496 497 /* Set GPIO states before they are made outputs */ 498 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 499 &gpio6_base->setdataout); 500 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 501 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 502 503 /* Configure GPIOs to output */ 504 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 505 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 506 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 507 508 omap_die_id_display(); 509 510 #ifdef CONFIG_VIDEO_OMAP3 511 beagle_dvi_pup(); 512 beagle_display_init(); 513 omap3_dss_enable(); 514 #endif 515 516 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 517 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 518 #endif 519 520 if (generate_fake_mac) 521 omap_die_id_usbethaddr(); 522 523 #if defined(CONFIG_MTDIDS_DEFAULT) && defined(CONFIG_MTDPARTS_DEFAULT) 524 if (strlen(CONFIG_MTDIDS_DEFAULT)) 525 env_set("mtdids", CONFIG_MTDIDS_DEFAULT); 526 527 if (strlen(CONFIG_MTDPARTS_DEFAULT)) 528 env_set("mtdparts", CONFIG_MTDPARTS_DEFAULT); 529 #endif 530 531 return 0; 532 } 533 534 /* 535 * Routine: set_muxconf_regs 536 * Description: Setting up the configuration Mux registers specific to the 537 * hardware. Many pins need to be moved from protect to primary 538 * mode. 539 */ 540 void set_muxconf_regs(void) 541 { 542 MUX_BEAGLE(); 543 } 544 545 #if defined(CONFIG_MMC) 546 int board_mmc_init(bd_t *bis) 547 { 548 return omap_mmc_init(0, 0, 0, -1, -1); 549 } 550 #endif 551 552 #if defined(CONFIG_MMC) 553 void board_mmc_power_init(void) 554 { 555 twl4030_power_mmc_init(0); 556 } 557 #endif 558 559 #if defined(CONFIG_USB_EHCI_HCD) && !defined(CONFIG_SPL_BUILD) 560 /* Call usb_stop() before starting the kernel */ 561 void show_boot_progress(int val) 562 { 563 if (val == BOOTSTAGE_ID_RUN_OS) 564 usb_stop(); 565 } 566 567 static struct omap_usbhs_board_data usbhs_bdata = { 568 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 569 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 570 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 571 }; 572 573 int ehci_hcd_init(int index, enum usb_init_type init, 574 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 575 { 576 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 577 } 578 579 int ehci_hcd_stop(int index) 580 { 581 return omap_ehci_hcd_stop(); 582 } 583 584 #endif /* CONFIG_USB_EHCI_HCD */ 585 586 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET) 587 int board_eth_init(bd_t *bis) 588 { 589 return usb_eth_initialize(bis); 590 } 591 #endif 592