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; 319 320 /* Enable i2c2 pullup resisters */ 321 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 322 323 switch (get_board_revision()) { 324 case REVISION_AXBX: 325 printf("Beagle Rev Ax/Bx\n"); 326 setenv("beaglerev", "AxBx"); 327 break; 328 case REVISION_CX: 329 printf("Beagle Rev C1/C2/C3\n"); 330 setenv("beaglerev", "Cx"); 331 MUX_BEAGLE_C(); 332 break; 333 case REVISION_C4: 334 printf("Beagle Rev C4\n"); 335 setenv("beaglerev", "C4"); 336 MUX_BEAGLE_C(); 337 /* Set VAUX2 to 1.8V for EHCI PHY */ 338 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 339 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 340 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 341 TWL4030_PM_RECEIVER_DEV_GRP_P1); 342 break; 343 case REVISION_XM_AB: 344 printf("Beagle xM Rev A/B\n"); 345 setenv("beaglerev", "xMAB"); 346 MUX_BEAGLE_XM(); 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_C: 354 printf("Beagle xM Rev C\n"); 355 setenv("beaglerev", "xMC"); 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 default: 364 printf("Beagle unknown 0x%02x\n", get_board_revision()); 365 MUX_BEAGLE_XM(); 366 /* Set VAUX2 to 1.8V for EHCI PHY */ 367 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 368 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 369 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 370 TWL4030_PM_RECEIVER_DEV_GRP_P1); 371 } 372 373 switch (get_expansion_id()) { 374 case TINCANTOOLS_ZIPPY: 375 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 376 expansion_config.revision, 377 expansion_config.fab_revision); 378 MUX_TINCANTOOLS_ZIPPY(); 379 setenv("buddy", "zippy"); 380 break; 381 case TINCANTOOLS_ZIPPY2: 382 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 383 expansion_config.revision, 384 expansion_config.fab_revision); 385 MUX_TINCANTOOLS_ZIPPY(); 386 setenv("buddy", "zippy2"); 387 break; 388 case TINCANTOOLS_TRAINER: 389 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 390 expansion_config.revision, 391 expansion_config.fab_revision); 392 MUX_TINCANTOOLS_ZIPPY(); 393 MUX_TINCANTOOLS_TRAINER(); 394 setenv("buddy", "trainer"); 395 break; 396 case TINCANTOOLS_SHOWDOG: 397 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 398 expansion_config.revision, 399 expansion_config.fab_revision); 400 /* Place holder for DSS2 definition for showdog lcd */ 401 setenv("defaultdisplay", "showdoglcd"); 402 setenv("buddy", "showdog"); 403 break; 404 case KBADC_BEAGLEFPGA: 405 printf("Recognized KBADC Beagle FPGA board\n"); 406 MUX_KBADC_BEAGLEFPGA(); 407 setenv("buddy", "beaglefpga"); 408 break; 409 case LW_BEAGLETOUCH: 410 printf("Recognized Liquidware BeagleTouch board\n"); 411 setenv("buddy", "beagletouch"); 412 break; 413 case BRAINMUX_LCDOG: 414 printf("Recognized Brainmux LCDog board\n"); 415 setenv("buddy", "lcdog"); 416 break; 417 case BRAINMUX_LCDOGTOUCH: 418 printf("Recognized Brainmux LCDog Touch board\n"); 419 setenv("buddy", "lcdogtouch"); 420 break; 421 case BBTOYS_WIFI: 422 printf("Recognized BeagleBoardToys WiFi board\n"); 423 MUX_BBTOYS_WIFI() 424 setenv("buddy", "bbtoys-wifi"); 425 break;; 426 case BBTOYS_VGA: 427 printf("Recognized BeagleBoardToys VGA board\n"); 428 break;; 429 case BBTOYS_LCD: 430 printf("Recognized BeagleBoardToys LCD board\n"); 431 break;; 432 case BCT_BRETTL3: 433 printf("Recognized bct electronic GmbH brettl3 board\n"); 434 break; 435 case BCT_BRETTL4: 436 printf("Recognized bct electronic GmbH brettl4 board\n"); 437 break; 438 case LSR_COM6L_ADPT: 439 printf("Recognized LSR COM6L Adapter Board\n"); 440 MUX_BBTOYS_WIFI() 441 setenv("buddy", "lsr-com6l-adpt"); 442 break; 443 case BEAGLE_NO_EEPROM: 444 printf("No EEPROM on expansion board\n"); 445 setenv("buddy", "none"); 446 break; 447 default: 448 printf("Unrecognized expansion board: %x\n", 449 expansion_config.device_vendor); 450 setenv("buddy", "unknown"); 451 } 452 453 if (expansion_config.content == 1) 454 setenv(expansion_config.env_var, expansion_config.env_setting); 455 456 twl4030_power_init(); 457 switch (get_board_revision()) { 458 case REVISION_XM_AB: 459 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 460 break; 461 default: 462 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 463 break; 464 } 465 466 /* Set GPIO states before they are made outputs */ 467 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 468 &gpio6_base->setdataout); 469 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 470 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 471 472 /* Configure GPIOs to output */ 473 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 474 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 475 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 476 477 dieid_num_r(); 478 479 #ifdef CONFIG_VIDEO_OMAP3 480 beagle_dvi_pup(); 481 beagle_display_init(); 482 omap3_dss_enable(); 483 #endif 484 485 #ifdef CONFIG_USB_MUSB_OMAP2PLUS 486 musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE); 487 #endif 488 489 return 0; 490 } 491 492 /* 493 * Routine: set_muxconf_regs 494 * Description: Setting up the configuration Mux registers specific to the 495 * hardware. Many pins need to be moved from protect to primary 496 * mode. 497 */ 498 void set_muxconf_regs(void) 499 { 500 MUX_BEAGLE(); 501 } 502 503 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 504 int board_mmc_init(bd_t *bis) 505 { 506 return omap_mmc_init(0, 0, 0, -1, -1); 507 } 508 #endif 509 510 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 511 /* Call usb_stop() before starting the kernel */ 512 void show_boot_progress(int val) 513 { 514 if (val == BOOTSTAGE_ID_RUN_OS) 515 usb_stop(); 516 } 517 518 static struct omap_usbhs_board_data usbhs_bdata = { 519 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 520 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 521 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 522 }; 523 524 int ehci_hcd_init(int index, enum usb_init_type init, 525 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 526 { 527 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 528 } 529 530 int ehci_hcd_stop(int index) 531 { 532 return omap_ehci_hcd_stop(); 533 } 534 535 #endif /* CONFIG_USB_EHCI */ 536 537 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 538 int board_eth_init(bd_t *bis) 539 { 540 return usb_eth_initialize(bis); 541 } 542 #endif 543