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 * See file CREDITS for list of people who contributed to this 15 * project. 16 * 17 * This program is free software; you can redistribute it and/or 18 * modify it under the terms of the GNU General Public License as 19 * published by the Free Software Foundation; either version 2 of 20 * the License, or (at your option) any later version. 21 * 22 * This program is distributed in the hope that it will be useful, 23 * but WITHOUT ANY WARRANTY; without even the implied warranty of 24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 * GNU General Public License for more details. 26 * 27 * You should have received a copy of the GNU General Public License 28 * along with this program; if not, write to the Free Software 29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 30 * MA 02111-1307 USA 31 */ 32 #include <common.h> 33 #ifdef CONFIG_STATUS_LED 34 #include <status_led.h> 35 #endif 36 #include <twl4030.h> 37 #include <linux/mtd/nand.h> 38 #include <asm/io.h> 39 #include <asm/arch/mmc_host_def.h> 40 #include <asm/arch/mux.h> 41 #include <asm/arch/mem.h> 42 #include <asm/arch/sys_proto.h> 43 #include <asm/gpio.h> 44 #include <asm/mach-types.h> 45 #include "beagle.h" 46 #include <command.h> 47 48 #ifdef CONFIG_USB_EHCI 49 #include <usb.h> 50 #include <asm/ehci-omap.h> 51 #endif 52 53 #define TWL4030_I2C_BUS 0 54 #define EXPANSION_EEPROM_I2C_BUS 1 55 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50 56 57 #define TINCANTOOLS_ZIPPY 0x01000100 58 #define TINCANTOOLS_ZIPPY2 0x02000100 59 #define TINCANTOOLS_TRAINER 0x04000100 60 #define TINCANTOOLS_SHOWDOG 0x03000100 61 #define KBADC_BEAGLEFPGA 0x01000600 62 #define LW_BEAGLETOUCH 0x01000700 63 #define BRAINMUX_LCDOG 0x01000800 64 #define BRAINMUX_LCDOGTOUCH 0x02000800 65 #define BBTOYS_WIFI 0x01000B00 66 #define BBTOYS_VGA 0x02000B00 67 #define BBTOYS_LCD 0x03000B00 68 #define BCT_BRETTL3 0x01000F00 69 #define BCT_BRETTL4 0x02000F00 70 #define BEAGLE_NO_EEPROM 0xffffffff 71 72 DECLARE_GLOBAL_DATA_PTR; 73 74 static struct { 75 unsigned int device_vendor; 76 unsigned char revision; 77 unsigned char content; 78 char fab_revision[8]; 79 char env_var[16]; 80 char env_setting[64]; 81 } expansion_config; 82 83 /* 84 * Routine: board_init 85 * Description: Early hardware init. 86 */ 87 int board_init(void) 88 { 89 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 90 /* board id for Linux */ 91 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 92 /* boot param addr */ 93 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 94 95 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) 96 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); 97 #endif 98 99 return 0; 100 } 101 102 /* 103 * Routine: get_board_revision 104 * Description: Detect if we are running on a Beagle revision Ax/Bx, 105 * C1/2/3, C4 or xM. This can be done by reading 106 * the level of GPIO173, GPIO172 and GPIO171. This should 107 * result in 108 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 109 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 110 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 111 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM 112 */ 113 static int get_board_revision(void) 114 { 115 int revision; 116 117 if (!gpio_request(171, "") && 118 !gpio_request(172, "") && 119 !gpio_request(173, "")) { 120 121 gpio_direction_input(171); 122 gpio_direction_input(172); 123 gpio_direction_input(173); 124 125 revision = gpio_get_value(173) << 2 | 126 gpio_get_value(172) << 1 | 127 gpio_get_value(171); 128 } else { 129 printf("Error: unable to acquire board revision GPIOs\n"); 130 revision = -1; 131 } 132 133 return revision; 134 } 135 136 #ifdef CONFIG_SPL_BUILD 137 /* 138 * Routine: get_board_mem_timings 139 * Description: If we use SPL then there is no x-loader nor config header 140 * so we have to setup the DDR timings ourself on both banks. 141 */ 142 void get_board_mem_timings(struct board_sdrc_timings *timings) 143 { 144 int pop_mfr, pop_id; 145 146 /* 147 * We need to identify what PoP memory is on the board so that 148 * we know what timings to use. If we can't identify it then 149 * we know it's an xM. To map the ID values please see nand_ids.c 150 */ 151 identify_nand_chip(&pop_mfr, &pop_id); 152 153 timings->mr = MICRON_V_MR_165; 154 switch (get_board_revision()) { 155 case REVISION_C4: 156 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 157 /* 512MB DDR */ 158 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 159 timings->ctrla = NUMONYX_V_ACTIMA_165; 160 timings->ctrlb = NUMONYX_V_ACTIMB_165; 161 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 162 break; 163 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 164 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 165 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 166 timings->ctrla = MICRON_V_ACTIMA_165; 167 timings->ctrlb = MICRON_V_ACTIMB_165; 168 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 169 break; 170 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 171 /* Beagleboard Rev C5, 256MB DDR */ 172 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 173 timings->ctrla = MICRON_V_ACTIMA_200; 174 timings->ctrlb = MICRON_V_ACTIMB_200; 175 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 176 break; 177 } 178 case REVISION_XM_A: 179 case REVISION_XM_B: 180 case REVISION_XM_C: 181 if (pop_mfr == 0) { 182 /* 256MB DDR */ 183 timings->mcfg = MICRON_V_MCFG_200(256 << 20); 184 timings->ctrla = MICRON_V_ACTIMA_200; 185 timings->ctrlb = MICRON_V_ACTIMB_200; 186 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 187 } else { 188 /* 512MB DDR */ 189 timings->mcfg = NUMONYX_V_MCFG_165(512 << 20); 190 timings->ctrla = NUMONYX_V_ACTIMA_165; 191 timings->ctrlb = NUMONYX_V_ACTIMB_165; 192 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 193 } 194 break; 195 default: 196 /* Assume 128MB and Micron/165MHz timings to be safe */ 197 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 198 timings->ctrla = MICRON_V_ACTIMA_165; 199 timings->ctrlb = MICRON_V_ACTIMB_165; 200 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 201 } 202 } 203 #endif 204 205 /* 206 * Routine: get_expansion_id 207 * Description: This function checks for expansion board by checking I2C 208 * bus 1 for the availability of an AT24C01B serial EEPROM. 209 * returns the device_vendor field from the EEPROM 210 */ 211 static unsigned int get_expansion_id(void) 212 { 213 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 214 215 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 216 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 217 i2c_set_bus_num(TWL4030_I2C_BUS); 218 return BEAGLE_NO_EEPROM; 219 } 220 221 /* read configuration data */ 222 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 223 sizeof(expansion_config)); 224 225 i2c_set_bus_num(TWL4030_I2C_BUS); 226 227 return expansion_config.device_vendor; 228 } 229 230 #ifdef CONFIG_VIDEO_OMAP3 231 /* 232 * Configure DSS to display background color on DVID 233 * Configure VENC to display color bar on S-Video 234 */ 235 static void beagle_display_init(void) 236 { 237 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 238 switch (get_board_revision()) { 239 case REVISION_AXBX: 240 case REVISION_CX: 241 case REVISION_C4: 242 omap3_dss_panel_config(&dvid_cfg); 243 break; 244 case REVISION_XM_A: 245 case REVISION_XM_B: 246 case REVISION_XM_C: 247 default: 248 omap3_dss_panel_config(&dvid_cfg_xm); 249 break; 250 } 251 } 252 253 /* 254 * Enable DVI power 255 */ 256 static void beagle_dvi_pup(void) 257 { 258 uchar val; 259 260 switch (get_board_revision()) { 261 case REVISION_AXBX: 262 case REVISION_CX: 263 case REVISION_C4: 264 case REVISION_XM_A: 265 gpio_request(170, ""); 266 gpio_direction_output(170, 0); 267 gpio_set_value(170, 1); 268 break; 269 case REVISION_XM_B: 270 case REVISION_XM_C: 271 default: 272 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 273 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 274 275 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 276 val |= 4; 277 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 278 279 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 280 val |= 4; 281 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 282 break; 283 } 284 } 285 #endif 286 287 /* 288 * Routine: misc_init_r 289 * Description: Configure board specific parts 290 */ 291 int misc_init_r(void) 292 { 293 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 294 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 295 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 296 297 /* Enable i2c2 pullup resisters */ 298 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 299 300 switch (get_board_revision()) { 301 case REVISION_AXBX: 302 printf("Beagle Rev Ax/Bx\n"); 303 setenv("beaglerev", "AxBx"); 304 break; 305 case REVISION_CX: 306 printf("Beagle Rev C1/C2/C3\n"); 307 setenv("beaglerev", "Cx"); 308 MUX_BEAGLE_C(); 309 break; 310 case REVISION_C4: 311 printf("Beagle Rev C4\n"); 312 setenv("beaglerev", "C4"); 313 MUX_BEAGLE_C(); 314 /* Set VAUX2 to 1.8V for EHCI PHY */ 315 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 316 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 317 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 318 TWL4030_PM_RECEIVER_DEV_GRP_P1); 319 break; 320 case REVISION_XM_A: 321 printf("Beagle xM Rev A\n"); 322 setenv("beaglerev", "xMA"); 323 MUX_BEAGLE_XM(); 324 /* Set VAUX2 to 1.8V for EHCI PHY */ 325 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 326 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 327 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 328 TWL4030_PM_RECEIVER_DEV_GRP_P1); 329 break; 330 case REVISION_XM_B: 331 printf("Beagle xM Rev B\n"); 332 setenv("beaglerev", "xMB"); 333 MUX_BEAGLE_XM(); 334 /* Set VAUX2 to 1.8V for EHCI PHY */ 335 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 336 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 337 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 338 TWL4030_PM_RECEIVER_DEV_GRP_P1); 339 break; 340 case REVISION_XM_C: 341 printf("Beagle xM Rev C\n"); 342 setenv("beaglerev", "xMC"); 343 MUX_BEAGLE_XM(); 344 /* Set VAUX2 to 1.8V for EHCI PHY */ 345 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 346 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 347 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 348 TWL4030_PM_RECEIVER_DEV_GRP_P1); 349 break; 350 default: 351 printf("Beagle unknown 0x%02x\n", get_board_revision()); 352 MUX_BEAGLE_XM(); 353 /* Set VAUX2 to 1.8V for EHCI PHY */ 354 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 355 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 356 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 357 TWL4030_PM_RECEIVER_DEV_GRP_P1); 358 } 359 360 switch (get_expansion_id()) { 361 case TINCANTOOLS_ZIPPY: 362 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 363 expansion_config.revision, 364 expansion_config.fab_revision); 365 MUX_TINCANTOOLS_ZIPPY(); 366 setenv("buddy", "zippy"); 367 break; 368 case TINCANTOOLS_ZIPPY2: 369 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 370 expansion_config.revision, 371 expansion_config.fab_revision); 372 MUX_TINCANTOOLS_ZIPPY(); 373 setenv("buddy", "zippy2"); 374 break; 375 case TINCANTOOLS_TRAINER: 376 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 377 expansion_config.revision, 378 expansion_config.fab_revision); 379 MUX_TINCANTOOLS_ZIPPY(); 380 MUX_TINCANTOOLS_TRAINER(); 381 setenv("buddy", "trainer"); 382 break; 383 case TINCANTOOLS_SHOWDOG: 384 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 385 expansion_config.revision, 386 expansion_config.fab_revision); 387 /* Place holder for DSS2 definition for showdog lcd */ 388 setenv("defaultdisplay", "showdoglcd"); 389 setenv("buddy", "showdog"); 390 break; 391 case KBADC_BEAGLEFPGA: 392 printf("Recognized KBADC Beagle FPGA board\n"); 393 MUX_KBADC_BEAGLEFPGA(); 394 setenv("buddy", "beaglefpga"); 395 break; 396 case LW_BEAGLETOUCH: 397 printf("Recognized Liquidware BeagleTouch board\n"); 398 setenv("buddy", "beagletouch"); 399 break; 400 case BRAINMUX_LCDOG: 401 printf("Recognized Brainmux LCDog board\n"); 402 setenv("buddy", "lcdog"); 403 break; 404 case BRAINMUX_LCDOGTOUCH: 405 printf("Recognized Brainmux LCDog Touch board\n"); 406 setenv("buddy", "lcdogtouch"); 407 break; 408 case BBTOYS_WIFI: 409 printf("Recognized BeagleBoardToys WiFi board\n"); 410 MUX_BBTOYS_WIFI() 411 setenv("buddy", "bbtoys-wifi"); 412 break;; 413 case BBTOYS_VGA: 414 printf("Recognized BeagleBoardToys VGA board\n"); 415 break;; 416 case BBTOYS_LCD: 417 printf("Recognized BeagleBoardToys LCD board\n"); 418 break;; 419 case BCT_BRETTL3: 420 printf("Recognized bct electronic GmbH brettl3 board\n"); 421 break; 422 case BCT_BRETTL4: 423 printf("Recognized bct electronic GmbH brettl4 board\n"); 424 break; 425 case BEAGLE_NO_EEPROM: 426 printf("No EEPROM on expansion board\n"); 427 setenv("buddy", "none"); 428 break; 429 default: 430 printf("Unrecognized expansion board: %x\n", 431 expansion_config.device_vendor); 432 setenv("buddy", "unknown"); 433 } 434 435 if (expansion_config.content == 1) 436 setenv(expansion_config.env_var, expansion_config.env_setting); 437 438 twl4030_power_init(); 439 switch (get_board_revision()) { 440 case REVISION_XM_A: 441 case REVISION_XM_B: 442 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 443 break; 444 default: 445 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 446 break; 447 } 448 449 /* Set GPIO states before they are made outputs */ 450 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 451 &gpio6_base->setdataout); 452 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 453 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 454 455 /* Configure GPIOs to output */ 456 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 457 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 458 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 459 460 dieid_num_r(); 461 462 #ifdef CONFIG_VIDEO_OMAP3 463 beagle_dvi_pup(); 464 beagle_display_init(); 465 omap3_dss_enable(); 466 #endif 467 468 return 0; 469 } 470 471 /* 472 * Routine: set_muxconf_regs 473 * Description: Setting up the configuration Mux registers specific to the 474 * hardware. Many pins need to be moved from protect to primary 475 * mode. 476 */ 477 void set_muxconf_regs(void) 478 { 479 MUX_BEAGLE(); 480 } 481 482 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 483 int board_mmc_init(bd_t *bis) 484 { 485 omap_mmc_init(0, 0, 0); 486 return 0; 487 } 488 #endif 489 490 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD) 491 /* Call usb_stop() before starting the kernel */ 492 void show_boot_progress(int val) 493 { 494 if (val == BOOTSTAGE_ID_RUN_OS) 495 usb_stop(); 496 } 497 498 static struct omap_usbhs_board_data usbhs_bdata = { 499 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 500 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 501 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 502 }; 503 504 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 505 { 506 return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 507 } 508 509 int ehci_hcd_stop(int index) 510 { 511 return omap_ehci_hcd_stop(); 512 } 513 514 #endif /* CONFIG_USB_EHCI */ 515