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 #include <dm.h> 18 #include <ns16550.h> 19 #ifdef CONFIG_LED_STATUS 20 #include <status_led.h> 21 #endif 22 #include <twl4030.h> 23 #include <linux/mtd/nand.h> 24 #include <asm/io.h> 25 #include <asm/arch/mmc_host_def.h> 26 #include <asm/arch/mux.h> 27 #include <asm/arch/mem.h> 28 #include <asm/arch/sys_proto.h> 29 #include <asm/gpio.h> 30 #include <asm/mach-types.h> 31 #include <asm/omap_musb.h> 32 #include <linux/errno.h> 33 #include <linux/usb/ch9.h> 34 #include <linux/usb/gadget.h> 35 #include <linux/usb/musb.h> 36 #include "beagle.h" 37 #include <command.h> 38 39 #ifdef CONFIG_USB_EHCI_HCD 40 #include <usb.h> 41 #include <asm/ehci-omap.h> 42 #endif 43 44 #define TWL4030_I2C_BUS 0 45 #define EXPANSION_EEPROM_I2C_BUS 1 46 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50 47 48 #define TINCANTOOLS_ZIPPY 0x01000100 49 #define TINCANTOOLS_ZIPPY2 0x02000100 50 #define TINCANTOOLS_TRAINER 0x04000100 51 #define TINCANTOOLS_SHOWDOG 0x03000100 52 #define KBADC_BEAGLEFPGA 0x01000600 53 #define LW_BEAGLETOUCH 0x01000700 54 #define BRAINMUX_LCDOG 0x01000800 55 #define BRAINMUX_LCDOGTOUCH 0x02000800 56 #define BBTOYS_WIFI 0x01000B00 57 #define BBTOYS_VGA 0x02000B00 58 #define BBTOYS_LCD 0x03000B00 59 #define BCT_BRETTL3 0x01000F00 60 #define BCT_BRETTL4 0x02000F00 61 #define LSR_COM6L_ADPT 0x01001300 62 #define BEAGLE_NO_EEPROM 0xffffffff 63 64 DECLARE_GLOBAL_DATA_PTR; 65 66 static struct { 67 unsigned int device_vendor; 68 unsigned char revision; 69 unsigned char content; 70 char fab_revision[8]; 71 char env_var[16]; 72 char env_setting[64]; 73 } expansion_config; 74 75 static const struct ns16550_platdata beagle_serial = { 76 .base = OMAP34XX_UART3, 77 .reg_shift = 2, 78 .clock = V_NS16550_CLK, 79 .fcr = UART_FCR_DEFVAL, 80 }; 81 82 U_BOOT_DEVICE(beagle_uart) = { 83 "ns16550_serial", 84 &beagle_serial 85 }; 86 87 /* 88 * Routine: board_init 89 * Description: Early hardware init. 90 */ 91 int board_init(void) 92 { 93 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 94 /* board id for Linux */ 95 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 96 /* boot param addr */ 97 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 98 99 #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE) 100 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON); 101 #endif 102 103 return 0; 104 } 105 106 /* 107 * Routine: get_board_revision 108 * Description: Detect if we are running on a Beagle revision Ax/Bx, 109 * C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading 110 * the level of GPIO173, GPIO172 and GPIO171. This should 111 * result in 112 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 113 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 114 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 115 * GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx 116 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx 117 */ 118 static int get_board_revision(void) 119 { 120 static int revision = -1; 121 122 if (revision == -1) { 123 if (!gpio_request(171, "rev0") && 124 !gpio_request(172, "rev1") && 125 !gpio_request(173, "rev2")) { 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 } 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_AB: 184 case REVISION_XM_C: 185 if (pop_mfr == 0) { 186 /* 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 } else { 192 /* 512MB DDR */ 193 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 194 timings->ctrla = NUMONYX_V_ACTIMA_165; 195 timings->ctrlb = NUMONYX_V_ACTIMB_165; 196 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 197 } 198 break; 199 default: 200 /* Assume 128MB and Micron/165MHz timings to be safe */ 201 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 202 timings->ctrla = MICRON_V_ACTIMA_165; 203 timings->ctrlb = MICRON_V_ACTIMB_165; 204 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 205 } 206 } 207 #endif 208 209 /* 210 * Routine: get_expansion_id 211 * Description: This function checks for expansion board by checking I2C 212 * bus 1 for the availability of an AT24C01B serial EEPROM. 213 * returns the device_vendor field from the EEPROM 214 */ 215 static unsigned int get_expansion_id(void) 216 { 217 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 218 219 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 220 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 221 i2c_set_bus_num(TWL4030_I2C_BUS); 222 return BEAGLE_NO_EEPROM; 223 } 224 225 /* read configuration data */ 226 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 227 sizeof(expansion_config)); 228 229 /* retry reading configuration data with 16bit addressing */ 230 if ((expansion_config.device_vendor == 0xFFFFFF00) || 231 (expansion_config.device_vendor == 0xFFFFFFFF)) { 232 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n"); 233 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config, 234 sizeof(expansion_config)); 235 } 236 237 i2c_set_bus_num(TWL4030_I2C_BUS); 238 239 return expansion_config.device_vendor; 240 } 241 242 #ifdef CONFIG_VIDEO_OMAP3 243 /* 244 * Configure DSS to display background color on DVID 245 * Configure VENC to display color bar on S-Video 246 */ 247 static void beagle_display_init(void) 248 { 249 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 250 switch (get_board_revision()) { 251 case REVISION_AXBX: 252 case REVISION_CX: 253 case REVISION_C4: 254 omap3_dss_panel_config(&dvid_cfg); 255 break; 256 case REVISION_XM_AB: 257 case REVISION_XM_C: 258 default: 259 omap3_dss_panel_config(&dvid_cfg_xm); 260 break; 261 } 262 } 263 264 /* 265 * Enable DVI power 266 */ 267 static void beagle_dvi_pup(void) 268 { 269 uchar val; 270 271 switch (get_board_revision()) { 272 case REVISION_AXBX: 273 case REVISION_CX: 274 case REVISION_C4: 275 gpio_request(170, "dvi"); 276 gpio_direction_output(170, 0); 277 gpio_set_value(170, 1); 278 break; 279 case REVISION_XM_AB: 280 case REVISION_XM_C: 281 default: 282 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 283 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 284 285 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 286 val |= 4; 287 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 288 289 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 290 val |= 4; 291 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 292 break; 293 } 294 } 295 #endif 296 297 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 298 static struct musb_hdrc_config musb_config = { 299 .multipoint = 1, 300 .dyn_fifo = 1, 301 .num_eps = 16, 302 .ram_bits = 12, 303 }; 304 305 static struct omap_musb_board_data musb_board_data = { 306 .interface_type = MUSB_INTERFACE_ULPI, 307 }; 308 309 static struct musb_hdrc_platform_data musb_plat = { 310 #if defined(CONFIG_USB_MUSB_HOST) 311 .mode = MUSB_HOST, 312 #elif defined(CONFIG_USB_MUSB_GADGET) 313 .mode = MUSB_PERIPHERAL, 314 #else 315 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET" 316 #endif 317 .config = &musb_config, 318 .power = 100, 319 .platform_ops = &omap2430_ops, 320 .board_data = &musb_board_data, 321 }; 322 #endif 323 324 /* 325 * Routine: misc_init_r 326 * Description: Configure board specific parts 327 */ 328 int misc_init_r(void) 329 { 330 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 331 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 332 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 333 bool generate_fake_mac = false; 334 u32 value; 335 336 /* Enable i2c2 pullup resisters */ 337 value = readl(&prog_io_base->io1); 338 value &= ~(PRG_I2C2_PULLUPRESX); 339 writel(value, &prog_io_base->io1); 340 341 switch (get_board_revision()) { 342 case REVISION_AXBX: 343 printf("Beagle Rev Ax/Bx\n"); 344 env_set("beaglerev", "AxBx"); 345 break; 346 case REVISION_CX: 347 printf("Beagle Rev C1/C2/C3\n"); 348 env_set("beaglerev", "Cx"); 349 MUX_BEAGLE_C(); 350 break; 351 case REVISION_C4: 352 printf("Beagle Rev C4\n"); 353 env_set("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_AB: 362 printf("Beagle xM Rev A/B\n"); 363 env_set("beaglerev", "xMAB"); 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 generate_fake_mac = true; 371 break; 372 case REVISION_XM_C: 373 printf("Beagle xM Rev C\n"); 374 env_set("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 generate_fake_mac = true; 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 generate_fake_mac = true; 392 } 393 394 switch (get_expansion_id()) { 395 case TINCANTOOLS_ZIPPY: 396 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 397 expansion_config.revision, 398 expansion_config.fab_revision); 399 MUX_TINCANTOOLS_ZIPPY(); 400 env_set("buddy", "zippy"); 401 break; 402 case TINCANTOOLS_ZIPPY2: 403 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 404 expansion_config.revision, 405 expansion_config.fab_revision); 406 MUX_TINCANTOOLS_ZIPPY(); 407 env_set("buddy", "zippy2"); 408 break; 409 case TINCANTOOLS_TRAINER: 410 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 411 expansion_config.revision, 412 expansion_config.fab_revision); 413 MUX_TINCANTOOLS_ZIPPY(); 414 MUX_TINCANTOOLS_TRAINER(); 415 env_set("buddy", "trainer"); 416 break; 417 case TINCANTOOLS_SHOWDOG: 418 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 419 expansion_config.revision, 420 expansion_config.fab_revision); 421 /* Place holder for DSS2 definition for showdog lcd */ 422 env_set("defaultdisplay", "showdoglcd"); 423 env_set("buddy", "showdog"); 424 break; 425 case KBADC_BEAGLEFPGA: 426 printf("Recognized KBADC Beagle FPGA board\n"); 427 MUX_KBADC_BEAGLEFPGA(); 428 env_set("buddy", "beaglefpga"); 429 break; 430 case LW_BEAGLETOUCH: 431 printf("Recognized Liquidware BeagleTouch board\n"); 432 env_set("buddy", "beagletouch"); 433 break; 434 case BRAINMUX_LCDOG: 435 printf("Recognized Brainmux LCDog board\n"); 436 env_set("buddy", "lcdog"); 437 break; 438 case BRAINMUX_LCDOGTOUCH: 439 printf("Recognized Brainmux LCDog Touch board\n"); 440 env_set("buddy", "lcdogtouch"); 441 break; 442 case BBTOYS_WIFI: 443 printf("Recognized BeagleBoardToys WiFi board\n"); 444 MUX_BBTOYS_WIFI() 445 env_set("buddy", "bbtoys-wifi"); 446 break; 447 case BBTOYS_VGA: 448 printf("Recognized BeagleBoardToys VGA board\n"); 449 break; 450 case BBTOYS_LCD: 451 printf("Recognized BeagleBoardToys LCD board\n"); 452 break; 453 case BCT_BRETTL3: 454 printf("Recognized bct electronic GmbH brettl3 board\n"); 455 break; 456 case BCT_BRETTL4: 457 printf("Recognized bct electronic GmbH brettl4 board\n"); 458 break; 459 case LSR_COM6L_ADPT: 460 printf("Recognized LSR COM6L Adapter Board\n"); 461 MUX_BBTOYS_WIFI() 462 env_set("buddy", "lsr-com6l-adpt"); 463 break; 464 case BEAGLE_NO_EEPROM: 465 printf("No EEPROM on expansion board\n"); 466 env_set("buddy", "none"); 467 break; 468 default: 469 printf("Unrecognized expansion board: %x\n", 470 expansion_config.device_vendor); 471 env_set("buddy", "unknown"); 472 } 473 474 if (expansion_config.content == 1) 475 env_set(expansion_config.env_var, expansion_config.env_setting); 476 477 twl4030_power_init(); 478 switch (get_board_revision()) { 479 case REVISION_XM_AB: 480 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 481 break; 482 default: 483 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 484 break; 485 } 486 487 /* Set GPIO states before they are made outputs */ 488 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 489 &gpio6_base->setdataout); 490 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 491 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 492 493 /* Configure GPIOs to output */ 494 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 495 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 496 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 497 498 omap_die_id_display(); 499 500 #ifdef CONFIG_VIDEO_OMAP3 501 beagle_dvi_pup(); 502 beagle_display_init(); 503 omap3_dss_enable(); 504 #endif 505 506 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 507 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 508 #endif 509 510 if (generate_fake_mac) 511 omap_die_id_usbethaddr(); 512 513 return 0; 514 } 515 516 /* 517 * Routine: set_muxconf_regs 518 * Description: Setting up the configuration Mux registers specific to the 519 * hardware. Many pins need to be moved from protect to primary 520 * mode. 521 */ 522 void set_muxconf_regs(void) 523 { 524 MUX_BEAGLE(); 525 } 526 527 #if defined(CONFIG_MMC) 528 int board_mmc_init(bd_t *bis) 529 { 530 return omap_mmc_init(0, 0, 0, -1, -1); 531 } 532 #endif 533 534 #if defined(CONFIG_MMC) 535 void board_mmc_power_init(void) 536 { 537 twl4030_power_mmc_init(0); 538 } 539 #endif 540 541 #if defined(CONFIG_USB_EHCI_HCD) && !defined(CONFIG_SPL_BUILD) 542 /* Call usb_stop() before starting the kernel */ 543 void show_boot_progress(int val) 544 { 545 if (val == BOOTSTAGE_ID_RUN_OS) 546 usb_stop(); 547 } 548 549 static struct omap_usbhs_board_data usbhs_bdata = { 550 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 551 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 552 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 553 }; 554 555 int ehci_hcd_init(int index, enum usb_init_type init, 556 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 557 { 558 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 559 } 560 561 int ehci_hcd_stop(int index) 562 { 563 return omap_ehci_hcd_stop(); 564 } 565 566 #endif /* CONFIG_USB_EHCI_HCD */ 567 568 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET) 569 int board_eth_init(bd_t *bis) 570 { 571 return usb_eth_initialize(bis); 572 } 573 #endif 574