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 pr_debug(fmt, args...) debug(fmt, ##args) 54 55 #define TWL4030_I2C_BUS 0 56 #define EXPANSION_EEPROM_I2C_BUS 1 57 #define EXPANSION_EEPROM_I2C_ADDRESS 0x50 58 59 #define TINCANTOOLS_ZIPPY 0x01000100 60 #define TINCANTOOLS_ZIPPY2 0x02000100 61 #define TINCANTOOLS_TRAINER 0x04000100 62 #define TINCANTOOLS_SHOWDOG 0x03000100 63 #define KBADC_BEAGLEFPGA 0x01000600 64 #define LW_BEAGLETOUCH 0x01000700 65 #define BRAINMUX_LCDOG 0x01000800 66 #define BRAINMUX_LCDOGTOUCH 0x02000800 67 #define BBTOYS_WIFI 0x01000B00 68 #define BBTOYS_VGA 0x02000B00 69 #define BBTOYS_LCD 0x03000B00 70 #define BCT_BRETTL3 0x01000F00 71 #define BCT_BRETTL4 0x02000F00 72 #define BEAGLE_NO_EEPROM 0xffffffff 73 74 DECLARE_GLOBAL_DATA_PTR; 75 76 static struct { 77 unsigned int device_vendor; 78 unsigned char revision; 79 unsigned char content; 80 char fab_revision[8]; 81 char env_var[16]; 82 char env_setting[64]; 83 } expansion_config; 84 85 /* 86 * Routine: board_init 87 * Description: Early hardware init. 88 */ 89 int board_init(void) 90 { 91 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 92 /* board id for Linux */ 93 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE; 94 /* boot param addr */ 95 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 96 97 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) 98 status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); 99 #endif 100 101 return 0; 102 } 103 104 /* 105 * Routine: get_board_revision 106 * Description: Detect if we are running on a Beagle revision Ax/Bx, 107 * C1/2/3, C4 or xM. This can be done by reading 108 * the level of GPIO173, GPIO172 and GPIO171. This should 109 * result in 110 * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx 111 * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3 112 * GPIO173, GPIO172, GPIO171: 1 0 1 => C4 113 * GPIO173, GPIO172, GPIO171: 0 0 0 => xM 114 */ 115 int get_board_revision(void) 116 { 117 int revision; 118 119 if (!gpio_request(171, "") && 120 !gpio_request(172, "") && 121 !gpio_request(173, "")) { 122 123 gpio_direction_input(171); 124 gpio_direction_input(172); 125 gpio_direction_input(173); 126 127 revision = gpio_get_value(173) << 2 | 128 gpio_get_value(172) << 1 | 129 gpio_get_value(171); 130 } else { 131 printf("Error: unable to acquire board revision GPIOs\n"); 132 revision = -1; 133 } 134 135 return revision; 136 } 137 138 #ifdef CONFIG_SPL_BUILD 139 /* 140 * Routine: get_board_mem_timings 141 * Description: If we use SPL then there is no x-loader nor config header 142 * so we have to setup the DDR timings ourself on both banks. 143 */ 144 void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl, 145 u32 *mr) 146 { 147 int pop_mfr, pop_id; 148 149 /* 150 * We need to identify what PoP memory is on the board so that 151 * we know what timings to use. If we can't identify it then 152 * we know it's an xM. To map the ID values please see nand_ids.c 153 */ 154 identify_nand_chip(&pop_mfr, &pop_id); 155 156 *mr = MICRON_V_MR_165; 157 switch (get_board_revision()) { 158 case REVISION_C4: 159 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) { 160 /* 512MB DDR */ 161 *mcfg = NUMONYX_V_MCFG_165(512 << 20); 162 *ctrla = NUMONYX_V_ACTIMA_165; 163 *ctrlb = NUMONYX_V_ACTIMB_165; 164 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 165 break; 166 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) { 167 /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/ 168 *mcfg = MICRON_V_MCFG_165(128 << 20); 169 *ctrla = MICRON_V_ACTIMA_165; 170 *ctrlb = MICRON_V_ACTIMB_165; 171 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 172 break; 173 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) { 174 /* Beagleboard Rev C5, 256MB DDR */ 175 *mcfg = MICRON_V_MCFG_200(256 << 20); 176 *ctrla = MICRON_V_ACTIMA_200; 177 *ctrlb = MICRON_V_ACTIMB_200; 178 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 179 break; 180 } 181 case REVISION_XM_A: 182 case REVISION_XM_B: 183 case REVISION_XM_C: 184 if (pop_mfr == 0) { 185 /* 256MB DDR */ 186 *mcfg = MICRON_V_MCFG_200(256 << 20); 187 *ctrla = MICRON_V_ACTIMA_200; 188 *ctrlb = MICRON_V_ACTIMB_200; 189 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; 190 } else { 191 /* 512MB DDR */ 192 *mcfg = NUMONYX_V_MCFG_165(512 << 20); 193 *ctrla = NUMONYX_V_ACTIMA_165; 194 *ctrlb = NUMONYX_V_ACTIMB_165; 195 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 196 } 197 break; 198 default: 199 /* Assume 128MB and Micron/165MHz timings to be safe */ 200 *mcfg = MICRON_V_MCFG_165(128 << 20); 201 *ctrla = MICRON_V_ACTIMA_165; 202 *ctrlb = MICRON_V_ACTIMB_165; 203 *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 204 } 205 } 206 #endif 207 208 /* 209 * Routine: get_expansion_id 210 * Description: This function checks for expansion board by checking I2C 211 * bus 1 for the availability of an AT24C01B serial EEPROM. 212 * returns the device_vendor field from the EEPROM 213 */ 214 unsigned int get_expansion_id(void) 215 { 216 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 217 218 /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ 219 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 220 i2c_set_bus_num(TWL4030_I2C_BUS); 221 return BEAGLE_NO_EEPROM; 222 } 223 224 /* read configuration data */ 225 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 226 sizeof(expansion_config)); 227 228 i2c_set_bus_num(TWL4030_I2C_BUS); 229 230 return expansion_config.device_vendor; 231 } 232 233 /* 234 * Configure DSS to display background color on DVID 235 * Configure VENC to display color bar on S-Video 236 */ 237 void beagle_display_init(void) 238 { 239 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 240 switch (get_board_revision()) { 241 case REVISION_AXBX: 242 case REVISION_CX: 243 case REVISION_C4: 244 omap3_dss_panel_config(&dvid_cfg); 245 break; 246 case REVISION_XM_A: 247 case REVISION_XM_B: 248 case REVISION_XM_C: 249 default: 250 omap3_dss_panel_config(&dvid_cfg_xm); 251 break; 252 } 253 } 254 255 /* 256 * Enable DVI power 257 */ 258 static void beagle_dvi_pup(void) 259 { 260 uchar val; 261 262 switch (get_board_revision()) { 263 case REVISION_AXBX: 264 case REVISION_CX: 265 case REVISION_C4: 266 case REVISION_XM_A: 267 gpio_request(170, ""); 268 gpio_direction_output(170, 0); 269 gpio_set_value(170, 1); 270 break; 271 case REVISION_XM_B: 272 case REVISION_XM_C: 273 default: 274 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 275 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 276 277 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 278 val |= 4; 279 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 280 281 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 282 val |= 4; 283 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 284 break; 285 } 286 } 287 288 /* 289 * Routine: misc_init_r 290 * Description: Configure board specific parts 291 */ 292 int misc_init_r(void) 293 { 294 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 295 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 296 struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE; 297 298 /* Enable i2c2 pullup resisters */ 299 writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1); 300 301 switch (get_board_revision()) { 302 case REVISION_AXBX: 303 printf("Beagle Rev Ax/Bx\n"); 304 setenv("beaglerev", "AxBx"); 305 break; 306 case REVISION_CX: 307 printf("Beagle Rev C1/C2/C3\n"); 308 setenv("beaglerev", "Cx"); 309 MUX_BEAGLE_C(); 310 break; 311 case REVISION_C4: 312 printf("Beagle Rev C4\n"); 313 setenv("beaglerev", "C4"); 314 MUX_BEAGLE_C(); 315 /* Set VAUX2 to 1.8V for EHCI PHY */ 316 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 317 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 318 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 319 TWL4030_PM_RECEIVER_DEV_GRP_P1); 320 break; 321 case REVISION_XM_A: 322 printf("Beagle xM Rev A\n"); 323 setenv("beaglerev", "xMA"); 324 MUX_BEAGLE_XM(); 325 /* Set VAUX2 to 1.8V for EHCI PHY */ 326 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 327 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 328 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 329 TWL4030_PM_RECEIVER_DEV_GRP_P1); 330 break; 331 case REVISION_XM_B: 332 printf("Beagle xM Rev B\n"); 333 setenv("beaglerev", "xMB"); 334 MUX_BEAGLE_XM(); 335 /* Set VAUX2 to 1.8V for EHCI PHY */ 336 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 337 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 338 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 339 TWL4030_PM_RECEIVER_DEV_GRP_P1); 340 break; 341 case REVISION_XM_C: 342 printf("Beagle xM Rev C\n"); 343 setenv("beaglerev", "xMC"); 344 MUX_BEAGLE_XM(); 345 /* Set VAUX2 to 1.8V for EHCI PHY */ 346 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 347 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 348 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 349 TWL4030_PM_RECEIVER_DEV_GRP_P1); 350 break; 351 default: 352 printf("Beagle unknown 0x%02x\n", get_board_revision()); 353 MUX_BEAGLE_XM(); 354 /* Set VAUX2 to 1.8V for EHCI PHY */ 355 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, 356 TWL4030_PM_RECEIVER_VAUX2_VSEL_18, 357 TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, 358 TWL4030_PM_RECEIVER_DEV_GRP_P1); 359 } 360 361 switch (get_expansion_id()) { 362 case TINCANTOOLS_ZIPPY: 363 printf("Recognized Tincantools Zippy board (rev %d %s)\n", 364 expansion_config.revision, 365 expansion_config.fab_revision); 366 MUX_TINCANTOOLS_ZIPPY(); 367 setenv("buddy", "zippy"); 368 break; 369 case TINCANTOOLS_ZIPPY2: 370 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", 371 expansion_config.revision, 372 expansion_config.fab_revision); 373 MUX_TINCANTOOLS_ZIPPY(); 374 setenv("buddy", "zippy2"); 375 break; 376 case TINCANTOOLS_TRAINER: 377 printf("Recognized Tincantools Trainer board (rev %d %s)\n", 378 expansion_config.revision, 379 expansion_config.fab_revision); 380 MUX_TINCANTOOLS_ZIPPY(); 381 MUX_TINCANTOOLS_TRAINER(); 382 setenv("buddy", "trainer"); 383 break; 384 case TINCANTOOLS_SHOWDOG: 385 printf("Recognized Tincantools Showdow board (rev %d %s)\n", 386 expansion_config.revision, 387 expansion_config.fab_revision); 388 /* Place holder for DSS2 definition for showdog lcd */ 389 setenv("defaultdisplay", "showdoglcd"); 390 setenv("buddy", "showdog"); 391 break; 392 case KBADC_BEAGLEFPGA: 393 printf("Recognized KBADC Beagle FPGA board\n"); 394 MUX_KBADC_BEAGLEFPGA(); 395 setenv("buddy", "beaglefpga"); 396 break; 397 case LW_BEAGLETOUCH: 398 printf("Recognized Liquidware BeagleTouch board\n"); 399 setenv("buddy", "beagletouch"); 400 break; 401 case BRAINMUX_LCDOG: 402 printf("Recognized Brainmux LCDog board\n"); 403 setenv("buddy", "lcdog"); 404 break; 405 case BRAINMUX_LCDOGTOUCH: 406 printf("Recognized Brainmux LCDog Touch board\n"); 407 setenv("buddy", "lcdogtouch"); 408 break; 409 case BBTOYS_WIFI: 410 printf("Recognized BeagleBoardToys WiFi board\n"); 411 MUX_BBTOYS_WIFI() 412 setenv("buddy", "bbtoys-wifi"); 413 break;; 414 case BBTOYS_VGA: 415 printf("Recognized BeagleBoardToys VGA board\n"); 416 break;; 417 case BBTOYS_LCD: 418 printf("Recognized BeagleBoardToys LCD board\n"); 419 break;; 420 case BCT_BRETTL3: 421 printf("Recognized bct electronic GmbH brettl3 board\n"); 422 break; 423 case BCT_BRETTL4: 424 printf("Recognized bct electronic GmbH brettl4 board\n"); 425 break; 426 case BEAGLE_NO_EEPROM: 427 printf("No EEPROM on expansion board\n"); 428 setenv("buddy", "none"); 429 break; 430 default: 431 printf("Unrecognized expansion board: %x\n", 432 expansion_config.device_vendor); 433 setenv("buddy", "unknown"); 434 } 435 436 if (expansion_config.content == 1) 437 setenv(expansion_config.env_var, expansion_config.env_setting); 438 439 twl4030_power_init(); 440 switch (get_board_revision()) { 441 case REVISION_XM_A: 442 case REVISION_XM_B: 443 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 444 break; 445 default: 446 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 447 break; 448 } 449 450 /* Set GPIO states before they are made outputs */ 451 writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1, 452 &gpio6_base->setdataout); 453 writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 454 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); 455 456 /* Configure GPIOs to output */ 457 writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe); 458 writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | 459 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe); 460 461 dieid_num_r(); 462 463 beagle_dvi_pup(); 464 beagle_display_init(); 465 omap3_dss_enable(); 466 467 return 0; 468 } 469 470 /* 471 * Routine: set_muxconf_regs 472 * Description: Setting up the configuration Mux registers specific to the 473 * hardware. Many pins need to be moved from protect to primary 474 * mode. 475 */ 476 void set_muxconf_regs(void) 477 { 478 MUX_BEAGLE(); 479 } 480 481 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 482 int board_mmc_init(bd_t *bis) 483 { 484 omap_mmc_init(0, 0, 0); 485 return 0; 486 } 487 #endif 488 489 #ifdef CONFIG_USB_EHCI 490 /* Call usb_stop() before starting the kernel */ 491 void show_boot_progress(int val) 492 { 493 if (val == BOOTSTAGE_ID_RUN_OS) 494 usb_stop(); 495 } 496 497 static struct omap_usbhs_board_data usbhs_bdata = { 498 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 499 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 500 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 501 }; 502 503 int ehci_hcd_init(void) 504 { 505 return omap_ehci_hcd_init(&usbhs_bdata); 506 } 507 508 int ehci_hcd_stop(void) 509 { 510 return omap_ehci_hcd_stop(); 511 } 512 513 #endif /* CONFIG_USB_EHCI */ 514