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_AB: 170 case REVISION_XM_C: 171 if (pop_mfr == 0) { 172 /* 256MB DDR */ 173 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 174 timings->ctrla = MICRON_V_ACTIMA_200; 175 timings->ctrlb = MICRON_V_ACTIMB_200; 176 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 177 } else { 178 /* 512MB DDR */ 179 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 180 timings->ctrla = NUMONYX_V_ACTIMA_165; 181 timings->ctrlb = NUMONYX_V_ACTIMB_165; 182 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 183 } 184 break; 185 default: 186 /* Assume 128MB and Micron/165MHz timings to be safe */ 187 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 188 timings->ctrla = MICRON_V_ACTIMA_165; 189 timings->ctrlb = MICRON_V_ACTIMB_165; 190 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 191 } 192 } 193 #endif 194 195 /* 196 * Routine: get_expansion_id 197 * Description: This function checks for expansion board by checking I2C 198 * bus 1 for the availability of an AT24C01B serial EEPROM. 199 * returns the device_vendor field from the EEPROM 200 */ 201 static unsigned int get_expansion_id(void) 202 { 203 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 204 205 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 206 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 207 i2c_set_bus_num(TWL4030_I2C_BUS); 208 return BEAGLE_NO_EEPROM; 209 } 210 211 /* read configuration data */ 212 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 213 sizeof(expansion_config)); 214 215 /* retry reading configuration data with 16bit addressing */ 216 if ((expansion_config.device_vendor == 0xFFFFFF00) || 217 (expansion_config.device_vendor == 0xFFFFFFFF)) { 218 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n"); 219 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config, 220 sizeof(expansion_config)); 221 } 222 223 i2c_set_bus_num(TWL4030_I2C_BUS); 224 225 return expansion_config.device_vendor; 226 } 227 228 #ifdef CONFIG_VIDEO_OMAP3 229 /* 230 * Configure DSS to display background color on DVID 231 * Configure VENC to display color bar on S-Video 232 */ 233 static void beagle_display_init(void) 234 { 235 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 236 switch (get_board_revision()) { 237 case REVISION_AXBX: 238 case REVISION_CX: 239 case REVISION_C4: 240 omap3_dss_panel_config(&dvid_cfg); 241 break; 242 case REVISION_XM_AB: 243 case REVISION_XM_C: 244 default: 245 omap3_dss_panel_config(&dvid_cfg_xm); 246 break; 247 } 248 } 249 250 /* 251 * Enable DVI power 252 */ 253 static void beagle_dvi_pup(void) 254 { 255 uchar val; 256 257 switch (get_board_revision()) { 258 case REVISION_AXBX: 259 case REVISION_CX: 260 case REVISION_C4: 261 gpio_request(170, ""); 262 gpio_direction_output(170, 0); 263 gpio_set_value(170, 1); 264 break; 265 case REVISION_XM_AB: 266 case REVISION_XM_C: 267 default: 268 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 269 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 270 271 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 272 val |= 4; 273 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 274 275 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 276 val |= 4; 277 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 278 break; 279 } 280 } 281 #endif 282 283 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 284 static struct musb_hdrc_config musb_config = { 285 .multipoint = 1, 286 .dyn_fifo = 1, 287 .num_eps = 16, 288 .ram_bits = 12, 289 }; 290 291 static struct omap_musb_board_data musb_board_data = { 292 .interface_type = MUSB_INTERFACE_ULPI, 293 }; 294 295 static struct musb_hdrc_platform_data musb_plat = { 296 #if defined(CONFIG_MUSB_HOST) 297 .mode = MUSB_HOST, 298 #elif defined(CONFIG_MUSB_GADGET) 299 .mode = MUSB_PERIPHERAL, 300 #else 301 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 302 #endif 303 .config = &musb_config, 304 .power = 100, 305 .platform_ops = &omap2430_ops, 306 .board_data = &musb_board_data, 307 }; 308 #endif 309 310 /* 311 * Routine: misc_init_r 312 * Description: Configure board specific parts 313 */ 314 int misc_init_r(void) 315 { 316 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 317 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 318 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 319 bool generate_fake_mac = false; 320 u32 value; 321 322 /* Enable i2c2 pullup resisters */ 323 value = readl(&prog_io_base->io1); 324 value &= ~(PRG_I2C2_PULLUPRESX); 325 writel(value, &prog_io_base->io1); 326 327 switch (get_board_revision()) { 328 case REVISION_AXBX: 329 printf("Beagle Rev Ax/Bx\n"); 330 setenv("beaglerev", "AxBx"); 331 break; 332 case REVISION_CX: 333 printf("Beagle Rev C1/C2/C3\n"); 334 setenv("beaglerev", "Cx"); 335 MUX_BEAGLE_C(); 336 break; 337 case REVISION_C4: 338 printf("Beagle Rev C4\n"); 339 setenv("beaglerev", "C4"); 340 MUX_BEAGLE_C(); 341 /* Set VAUX2 to 1.8V for EHCI PHY */ 342 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 343 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 344 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 345 TWL4030_PM_RECEIVER_DEV_GRP_P1); 346 break; 347 case REVISION_XM_AB: 348 printf("Beagle xM Rev A/B\n"); 349 setenv("beaglerev", "xMAB"); 350 MUX_BEAGLE_XM(); 351 /* Set VAUX2 to 1.8V for EHCI PHY */ 352 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 353 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 354 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 355 TWL4030_PM_RECEIVER_DEV_GRP_P1); 356 generate_fake_mac = true; 357 break; 358 case REVISION_XM_C: 359 printf("Beagle xM Rev C\n"); 360 setenv("beaglerev", "xMC"); 361 MUX_BEAGLE_XM(); 362 /* Set VAUX2 to 1.8V for EHCI PHY */ 363 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 364 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 365 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 366 TWL4030_PM_RECEIVER_DEV_GRP_P1); 367 generate_fake_mac = true; 368 break; 369 default: 370 printf("Beagle unknown 0x%02x\n", get_board_revision()); 371 MUX_BEAGLE_XM(); 372 /* Set VAUX2 to 1.8V for EHCI PHY */ 373 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 374 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 375 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 376 TWL4030_PM_RECEIVER_DEV_GRP_P1); 377 generate_fake_mac = true; 378 } 379 380 switch (get_expansion_id()) { 381 case TINCANTOOLS_ZIPPY: 382 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 383 expansion_config.revision, 384 expansion_config.fab_revision); 385 MUX_TINCANTOOLS_ZIPPY(); 386 setenv("buddy", "zippy"); 387 break; 388 case TINCANTOOLS_ZIPPY2: 389 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 390 expansion_config.revision, 391 expansion_config.fab_revision); 392 MUX_TINCANTOOLS_ZIPPY(); 393 setenv("buddy", "zippy2"); 394 break; 395 case TINCANTOOLS_TRAINER: 396 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 397 expansion_config.revision, 398 expansion_config.fab_revision); 399 MUX_TINCANTOOLS_ZIPPY(); 400 MUX_TINCANTOOLS_TRAINER(); 401 setenv("buddy", "trainer"); 402 break; 403 case TINCANTOOLS_SHOWDOG: 404 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 405 expansion_config.revision, 406 expansion_config.fab_revision); 407 /* Place holder for DSS2 definition for showdog lcd */ 408 setenv("defaultdisplay", "showdoglcd"); 409 setenv("buddy", "showdog"); 410 break; 411 case KBADC_BEAGLEFPGA: 412 printf("Recognized KBADC Beagle FPGA board\n"); 413 MUX_KBADC_BEAGLEFPGA(); 414 setenv("buddy", "beaglefpga"); 415 break; 416 case LW_BEAGLETOUCH: 417 printf("Recognized Liquidware BeagleTouch board\n"); 418 setenv("buddy", "beagletouch"); 419 break; 420 case BRAINMUX_LCDOG: 421 printf("Recognized Brainmux LCDog board\n"); 422 setenv("buddy", "lcdog"); 423 break; 424 case BRAINMUX_LCDOGTOUCH: 425 printf("Recognized Brainmux LCDog Touch board\n"); 426 setenv("buddy", "lcdogtouch"); 427 break; 428 case BBTOYS_WIFI: 429 printf("Recognized BeagleBoardToys WiFi board\n"); 430 MUX_BBTOYS_WIFI() 431 setenv("buddy", "bbtoys-wifi"); 432 break;; 433 case BBTOYS_VGA: 434 printf("Recognized BeagleBoardToys VGA board\n"); 435 break;; 436 case BBTOYS_LCD: 437 printf("Recognized BeagleBoardToys LCD board\n"); 438 break;; 439 case BCT_BRETTL3: 440 printf("Recognized bct electronic GmbH brettl3 board\n"); 441 break; 442 case BCT_BRETTL4: 443 printf("Recognized bct electronic GmbH brettl4 board\n"); 444 break; 445 case LSR_COM6L_ADPT: 446 printf("Recognized LSR COM6L Adapter Board\n"); 447 MUX_BBTOYS_WIFI() 448 setenv("buddy", "lsr-com6l-adpt"); 449 break; 450 case BEAGLE_NO_EEPROM: 451 printf("No EEPROM on expansion board\n"); 452 setenv("buddy", "none"); 453 break; 454 default: 455 printf("Unrecognized expansion board: %x\n", 456 expansion_config.device_vendor); 457 setenv("buddy", "unknown"); 458 } 459 460 if (expansion_config.content == 1) 461 setenv(expansion_config.env_var, expansion_config.env_setting); 462 463 twl4030_power_init(); 464 switch (get_board_revision()) { 465 case REVISION_XM_AB: 466 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 467 break; 468 default: 469 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 470 break; 471 } 472 473 /* Set GPIO states before they are made outputs */ 474 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 475 &gpio6_base->setdataout); 476 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 477 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 478 479 /* Configure GPIOs to output */ 480 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 481 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 482 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 483 484 dieid_num_r(); 485 486 #ifdef CONFIG_VIDEO_OMAP3 487 beagle_dvi_pup(); 488 beagle_display_init(); 489 omap3_dss_enable(); 490 #endif 491 492 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 493 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 494 #endif 495 496 if (generate_fake_mac) { 497 u32 id[4]; 498 499 get_dieid(id); 500 usb_fake_mac_from_die_id(id); 501 } 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, enum usb_init_type init, 539 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 540 { 541 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 542 } 543 544 int ehci_hcd_stop(int index) 545 { 546 return omap_ehci_hcd_stop(); 547 } 548 549 #endif /* CONFIG_USB_EHCI */ 550 551 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 552 int board_eth_init(bd_t *bis) 553 { 554 return usb_eth_initialize(bis); 555 } 556 #endif 557