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(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl, 143 u32 *mr) 144 { 145 int pop_mfr, pop_id; 146 147 /* 148 * We need to identify what PoP memory is on the board so that 149 * we know what timings to use. If we can't identify it then 150 * we know it's an xM. To map the ID values please see nand_ids.c 151 */ 152 identify_nand_chip(&pop_mfr, &pop_id); 153 154 *mr = MICRON_V_MR_165; 155 switch (get_board_revision()) { 156 case REVISION_C4: 157 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 158 /* 512MB DDR */ 159 *mcfg = NUMONYX_V_MCFG_165(512 << 20); 160 *ctrla = NUMONYX_V_ACTIMA_165; 161 *ctrlb = NUMONYX_V_ACTIMB_165; 162 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 163 break; 164 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 165 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 166 *mcfg = MICRON_V_MCFG_165(128 << 20); 167 *ctrla = MICRON_V_ACTIMA_165; 168 *ctrlb = MICRON_V_ACTIMB_165; 169 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 170 break; 171 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 172 /* Beagleboard Rev C5, 256MB DDR */ 173 *mcfg = MICRON_V_MCFG_200(256 << 20); 174 *ctrla = MICRON_V_ACTIMA_200; 175 *ctrlb = MICRON_V_ACTIMB_200; 176 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 177 break; 178 } 179 case REVISION_XM_A: 180 case REVISION_XM_B: 181 case REVISION_XM_C: 182 if (pop_mfr == 0) { 183 /* 256MB DDR */ 184 *mcfg = MICRON_V_MCFG_200(256 << 20); 185 *ctrla = MICRON_V_ACTIMA_200; 186 *ctrlb = MICRON_V_ACTIMB_200; 187 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 188 } else { 189 /* 512MB DDR */ 190 *mcfg = NUMONYX_V_MCFG_165(512 << 20); 191 *ctrla = NUMONYX_V_ACTIMA_165; 192 *ctrlb = NUMONYX_V_ACTIMB_165; 193 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 194 } 195 break; 196 default: 197 /* Assume 128MB and Micron/165MHz timings to be safe */ 198 *mcfg = MICRON_V_MCFG_165(128 << 20); 199 *ctrla = MICRON_V_ACTIMA_165; 200 *ctrlb = MICRON_V_ACTIMB_165; 201 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 202 } 203 } 204 #endif 205 206 /* 207 * Routine: get_expansion_id 208 * Description: This function checks for expansion board by checking I2C 209 * bus 1 for the availability of an AT24C01B serial EEPROM. 210 * returns the device_vendor field from the EEPROM 211 */ 212 static unsigned int get_expansion_id(void) 213 { 214 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 215 216 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 217 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 218 i2c_set_bus_num(TWL4030_I2C_BUS); 219 return BEAGLE_NO_EEPROM; 220 } 221 222 /* read configuration data */ 223 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 224 sizeof(expansion_config)); 225 226 i2c_set_bus_num(TWL4030_I2C_BUS); 227 228 return expansion_config.device_vendor; 229 } 230 231 /* 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 } 285 286 /* 287 * Routine: misc_init_r 288 * Description: Configure board specific parts 289 */ 290 int misc_init_r(void) 291 { 292 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 293 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 294 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 295 296 /* Enable i2c2 pullup resisters */ 297 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 298 299 switch (get_board_revision()) { 300 case REVISION_AXBX: 301 printf("Beagle Rev Ax/Bx\n"); 302 setenv("beaglerev", "AxBx"); 303 break; 304 case REVISION_CX: 305 printf("Beagle Rev C1/C2/C3\n"); 306 setenv("beaglerev", "Cx"); 307 MUX_BEAGLE_C(); 308 break; 309 case REVISION_C4: 310 printf("Beagle Rev C4\n"); 311 setenv("beaglerev", "C4"); 312 MUX_BEAGLE_C(); 313 /* Set VAUX2 to 1.8V for EHCI PHY */ 314 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 315 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 316 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 317 TWL4030_PM_RECEIVER_DEV_GRP_P1); 318 break; 319 case REVISION_XM_A: 320 printf("Beagle xM Rev A\n"); 321 setenv("beaglerev", "xMA"); 322 MUX_BEAGLE_XM(); 323 /* Set VAUX2 to 1.8V for EHCI PHY */ 324 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 325 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 326 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 327 TWL4030_PM_RECEIVER_DEV_GRP_P1); 328 break; 329 case REVISION_XM_B: 330 printf("Beagle xM Rev B\n"); 331 setenv("beaglerev", "xMB"); 332 MUX_BEAGLE_XM(); 333 /* Set VAUX2 to 1.8V for EHCI PHY */ 334 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 335 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 336 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 337 TWL4030_PM_RECEIVER_DEV_GRP_P1); 338 break; 339 case REVISION_XM_C: 340 printf("Beagle xM Rev C\n"); 341 setenv("beaglerev", "xMC"); 342 MUX_BEAGLE_XM(); 343 /* Set VAUX2 to 1.8V for EHCI PHY */ 344 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 345 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 346 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 347 TWL4030_PM_RECEIVER_DEV_GRP_P1); 348 break; 349 default: 350 printf("Beagle unknown 0x%02x\n", get_board_revision()); 351 MUX_BEAGLE_XM(); 352 /* Set VAUX2 to 1.8V for EHCI PHY */ 353 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 354 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 355 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 356 TWL4030_PM_RECEIVER_DEV_GRP_P1); 357 } 358 359 switch (get_expansion_id()) { 360 case TINCANTOOLS_ZIPPY: 361 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 362 expansion_config.revision, 363 expansion_config.fab_revision); 364 MUX_TINCANTOOLS_ZIPPY(); 365 setenv("buddy", "zippy"); 366 break; 367 case TINCANTOOLS_ZIPPY2: 368 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 369 expansion_config.revision, 370 expansion_config.fab_revision); 371 MUX_TINCANTOOLS_ZIPPY(); 372 setenv("buddy", "zippy2"); 373 break; 374 case TINCANTOOLS_TRAINER: 375 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 376 expansion_config.revision, 377 expansion_config.fab_revision); 378 MUX_TINCANTOOLS_ZIPPY(); 379 MUX_TINCANTOOLS_TRAINER(); 380 setenv("buddy", "trainer"); 381 break; 382 case TINCANTOOLS_SHOWDOG: 383 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 384 expansion_config.revision, 385 expansion_config.fab_revision); 386 /* Place holder for DSS2 definition for showdog lcd */ 387 setenv("defaultdisplay", "showdoglcd"); 388 setenv("buddy", "showdog"); 389 break; 390 case KBADC_BEAGLEFPGA: 391 printf("Recognized KBADC Beagle FPGA board\n"); 392 MUX_KBADC_BEAGLEFPGA(); 393 setenv("buddy", "beaglefpga"); 394 break; 395 case LW_BEAGLETOUCH: 396 printf("Recognized Liquidware BeagleTouch board\n"); 397 setenv("buddy", "beagletouch"); 398 break; 399 case BRAINMUX_LCDOG: 400 printf("Recognized Brainmux LCDog board\n"); 401 setenv("buddy", "lcdog"); 402 break; 403 case BRAINMUX_LCDOGTOUCH: 404 printf("Recognized Brainmux LCDog Touch board\n"); 405 setenv("buddy", "lcdogtouch"); 406 break; 407 case BBTOYS_WIFI: 408 printf("Recognized BeagleBoardToys WiFi board\n"); 409 MUX_BBTOYS_WIFI() 410 setenv("buddy", "bbtoys-wifi"); 411 break;; 412 case BBTOYS_VGA: 413 printf("Recognized BeagleBoardToys VGA board\n"); 414 break;; 415 case BBTOYS_LCD: 416 printf("Recognized BeagleBoardToys LCD board\n"); 417 break;; 418 case BCT_BRETTL3: 419 printf("Recognized bct electronic GmbH brettl3 board\n"); 420 break; 421 case BCT_BRETTL4: 422 printf("Recognized bct electronic GmbH brettl4 board\n"); 423 break; 424 case BEAGLE_NO_EEPROM: 425 printf("No EEPROM on expansion board\n"); 426 setenv("buddy", "none"); 427 break; 428 default: 429 printf("Unrecognized expansion board: %x\n", 430 expansion_config.device_vendor); 431 setenv("buddy", "unknown"); 432 } 433 434 if (expansion_config.content == 1) 435 setenv(expansion_config.env_var, expansion_config.env_setting); 436 437 twl4030_power_init(); 438 switch (get_board_revision()) { 439 case REVISION_XM_A: 440 case REVISION_XM_B: 441 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 442 break; 443 default: 444 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 445 break; 446 } 447 448 /* Set GPIO states before they are made outputs */ 449 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 450 &gpio6_base->setdataout); 451 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 452 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 453 454 /* Configure GPIOs to output */ 455 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 456 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 457 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 458 459 dieid_num_r(); 460 461 beagle_dvi_pup(); 462 beagle_display_init(); 463 omap3_dss_enable(); 464 465 return 0; 466 } 467 468 /* 469 * Routine: set_muxconf_regs 470 * Description: Setting up the configuration Mux registers specific to the 471 * hardware. Many pins need to be moved from protect to primary 472 * mode. 473 */ 474 void set_muxconf_regs(void) 475 { 476 MUX_BEAGLE(); 477 } 478 479 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 480 int board_mmc_init(bd_t *bis) 481 { 482 omap_mmc_init(0, 0, 0); 483 return 0; 484 } 485 #endif 486 487 #ifdef CONFIG_USB_EHCI 488 /* Call usb_stop() before starting the kernel */ 489 void show_boot_progress(int val) 490 { 491 if (val == BOOTSTAGE_ID_RUN_OS) 492 usb_stop(); 493 } 494 495 static struct omap_usbhs_board_data usbhs_bdata = { 496 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 497 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 498 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 499 }; 500 501 int ehci_hcd_init(void) 502 { 503 return omap_ehci_hcd_init(&usbhs_bdata); 504 } 505 506 int ehci_hcd_stop(void) 507 { 508 return omap_ehci_hcd_stop(); 509 } 510 511 #endif /* CONFIG_USB_EHCI */ 512