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 #ifdef CONFIG_VIDEO_OMAP3 232 /* 233 * Configure DSS to display background color on DVID 234 * Configure VENC to display color bar on S-Video 235 */ 236 static void beagle_display_init(void) 237 { 238 omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH); 239 switch (get_board_revision()) { 240 case REVISION_AXBX: 241 case REVISION_CX: 242 case REVISION_C4: 243 omap3_dss_panel_config(&dvid_cfg); 244 break; 245 case REVISION_XM_A: 246 case REVISION_XM_B: 247 case REVISION_XM_C: 248 default: 249 omap3_dss_panel_config(&dvid_cfg_xm); 250 break; 251 } 252 } 253 254 /* 255 * Enable DVI power 256 */ 257 static void beagle_dvi_pup(void) 258 { 259 uchar val; 260 261 switch (get_board_revision()) { 262 case REVISION_AXBX: 263 case REVISION_CX: 264 case REVISION_C4: 265 case REVISION_XM_A: 266 gpio_request(170, ""); 267 gpio_direction_output(170, 0); 268 gpio_set_value(170, 1); 269 break; 270 case REVISION_XM_B: 271 case REVISION_XM_C: 272 default: 273 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3) 274 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6) 275 276 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 277 val |= 4; 278 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1); 279 280 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 281 val |= 4; 282 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1); 283 break; 284 } 285 } 286 #endif 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 #ifdef CONFIG_VIDEO_OMAP3 464 beagle_dvi_pup(); 465 beagle_display_init(); 466 omap3_dss_enable(); 467 #endif 468 469 return 0; 470 } 471 472 /* 473 * Routine: set_muxconf_regs 474 * Description: Setting up the configuration Mux registers specific to the 475 * hardware. Many pins need to be moved from protect to primary 476 * mode. 477 */ 478 void set_muxconf_regs(void) 479 { 480 MUX_BEAGLE(); 481 } 482 483 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 484 int board_mmc_init(bd_t *bis) 485 { 486 omap_mmc_init(0, 0, 0); 487 return 0; 488 } 489 #endif 490 491 #ifdef CONFIG_USB_EHCI 492 /* Call usb_stop() before starting the kernel */ 493 void show_boot_progress(int val) 494 { 495 if (val == BOOTSTAGE_ID_RUN_OS) 496 usb_stop(); 497 } 498 499 static struct omap_usbhs_board_data usbhs_bdata = { 500 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 501 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 502 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 503 }; 504 505 int ehci_hcd_init(void) 506 { 507 return omap_ehci_hcd_init(&usbhs_bdata); 508 } 509 510 int ehci_hcd_stop(void) 511 { 512 return omap_ehci_hcd_stop(); 513 } 514 515 #endif /* CONFIG_USB_EHCI */ 516