1 /* 2 * Maintainer : Steve Sakoman <steve@sakoman.com> 3 * 4 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by 5 * Richard Woodruff <r-woodruff2@ti.com> 6 * Syed Mohammed Khasim <khasim@ti.com> 7 * Sunil Kumar <sunilsaini05@gmail.com> 8 * Shashi Ranjan <shashiranjanmca05@gmail.com> 9 * 10 * (C) Copyright 2004-2008 11 * Texas Instruments, <www.ti.com> 12 * 13 * SPDX-License-Identifier: GPL-2.0+ 14 */ 15 #include <common.h> 16 #include <dm.h> 17 #include <ns16550.h> 18 #include <netdev.h> 19 #include <twl4030.h> 20 #include <linux/mtd/nand.h> 21 #include <asm/io.h> 22 #include <asm/arch/mmc_host_def.h> 23 #include <asm/arch/mux.h> 24 #include <asm/arch/mem.h> 25 #include <asm/arch/sys_proto.h> 26 #include <asm/gpio.h> 27 #include <asm/mach-types.h> 28 #include "overo.h" 29 30 #ifdef CONFIG_USB_EHCI 31 #include <usb.h> 32 #include <asm/ehci-omap.h> 33 #endif 34 35 DECLARE_GLOBAL_DATA_PTR; 36 37 #define TWL4030_I2C_BUS 0 38 #define EXPANSION_EEPROM_I2C_BUS 2 39 #define EXPANSION_EEPROM_I2C_ADDRESS 0x51 40 41 #define GUMSTIX_EMPTY_EEPROM 0x0 42 43 #define GUMSTIX_SUMMIT 0x01000200 44 #define GUMSTIX_TOBI 0x02000200 45 #define GUMSTIX_TOBI_DUO 0x03000200 46 #define GUMSTIX_PALO35 0x04000200 47 #define GUMSTIX_PALO43 0x05000200 48 #define GUMSTIX_CHESTNUT43 0x06000200 49 #define GUMSTIX_PINTO 0x07000200 50 #define GUMSTIX_GALLOP43 0x08000200 51 #define GUMSTIX_ALTO35 0x09000200 52 #define GUMSTIX_STAGECOACH 0x0A000200 53 #define GUMSTIX_THUMBO 0x0B000200 54 #define GUMSTIX_TURTLECORE 0x0C000200 55 #define GUMSTIX_ARBOR43C 0x0D000200 56 57 #define ETTUS_USRP_E 0x01000300 58 59 #define GUMSTIX_NO_EEPROM 0xffffffff 60 61 static struct { 62 unsigned int device_vendor; 63 unsigned char revision; 64 unsigned char content; 65 char fab_revision[8]; 66 char env_var[16]; 67 char env_setting[64]; 68 } expansion_config = {0x0}; 69 70 static const struct ns16550_platdata overo_serial = { 71 OMAP34XX_UART3, 72 2, 73 V_NS16550_CLK 74 }; 75 76 U_BOOT_DEVICE(overo_uart) = { 77 "serial_omap", 78 &overo_serial 79 }; 80 81 /* 82 * Routine: get_sdio2_config 83 * Description: Return information about the wifi module connection 84 * Returns 0 if the module connects though a level translator 85 * Returns 1 if the module connects directly 86 */ 87 int get_sdio2_config(void) 88 { 89 int sdio_direct; 90 91 if (!gpio_request(130, "") && !gpio_request(139, "")) { 92 93 gpio_direction_output(130, 0); 94 gpio_direction_input(139); 95 96 sdio_direct = 1; 97 gpio_set_value(130, 0); 98 if (gpio_get_value(139) == 0) { 99 gpio_set_value(130, 1); 100 if (gpio_get_value(139) == 1) 101 sdio_direct = 0; 102 } 103 104 gpio_direction_input(130); 105 } else { 106 puts("Error: unable to acquire sdio2 clk GPIOs\n"); 107 sdio_direct = -1; 108 } 109 110 return sdio_direct; 111 } 112 113 /* 114 * Routine: get_expansion_id 115 * Description: This function checks for expansion board by checking I2C 116 * bus 2 for the availability of an AT24C01B serial EEPROM. 117 * returns the device_vendor field from the EEPROM 118 */ 119 unsigned int get_expansion_id(void) 120 { 121 if (expansion_config.device_vendor != 0x0) 122 return expansion_config.device_vendor; 123 124 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 125 126 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */ 127 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 128 i2c_set_bus_num(TWL4030_I2C_BUS); 129 return GUMSTIX_NO_EEPROM; 130 } 131 132 /* read configuration data */ 133 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 134 sizeof(expansion_config)); 135 136 i2c_set_bus_num(TWL4030_I2C_BUS); 137 138 return expansion_config.device_vendor; 139 } 140 141 /* 142 * Routine: misc_init_r 143 * Description: Configure board specific parts 144 */ 145 int misc_init_r(void) 146 { 147 unsigned int expansion_id; 148 149 twl4030_power_init(); 150 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 151 152 printf("Board revision: %d\n", get_board_revision()); 153 154 switch (get_sdio2_config()) { 155 case 0: 156 puts("Tranceiver detected on mmc2\n"); 157 MUX_OVERO_SDIO2_TRANSCEIVER(); 158 break; 159 case 1: 160 puts("Direct connection on mmc2\n"); 161 MUX_OVERO_SDIO2_DIRECT(); 162 break; 163 default: 164 puts("Unable to detect mmc2 connection type\n"); 165 } 166 167 expansion_id = get_expansion_id(); 168 switch (expansion_id) { 169 case GUMSTIX_SUMMIT: 170 printf("Recognized Summit expansion board (rev %d %s)\n", 171 expansion_config.revision, 172 expansion_config.fab_revision); 173 MUX_GUMSTIX(); 174 setenv("defaultdisplay", "dvi"); 175 setenv("expansionname", "summit"); 176 break; 177 case GUMSTIX_TOBI: 178 printf("Recognized Tobi expansion board (rev %d %s)\n", 179 expansion_config.revision, 180 expansion_config.fab_revision); 181 MUX_GUMSTIX(); 182 setenv("defaultdisplay", "dvi"); 183 setenv("expansionname", "tobi"); 184 break; 185 case GUMSTIX_TOBI_DUO: 186 printf("Recognized Tobi Duo expansion board (rev %d %s)\n", 187 expansion_config.revision, 188 expansion_config.fab_revision); 189 MUX_GUMSTIX(); 190 setenv("expansionname", "tobiduo"); 191 break; 192 case GUMSTIX_PALO35: 193 printf("Recognized Palo35 expansion board (rev %d %s)\n", 194 expansion_config.revision, 195 expansion_config.fab_revision); 196 MUX_GUMSTIX(); 197 setenv("defaultdisplay", "lcd35"); 198 setenv("expansionname", "palo35"); 199 break; 200 case GUMSTIX_PALO43: 201 printf("Recognized Palo43 expansion board (rev %d %s)\n", 202 expansion_config.revision, 203 expansion_config.fab_revision); 204 MUX_GUMSTIX(); 205 setenv("defaultdisplay", "lcd43"); 206 setenv("expansionname", "palo43"); 207 break; 208 case GUMSTIX_CHESTNUT43: 209 printf("Recognized Chestnut43 expansion board (rev %d %s)\n", 210 expansion_config.revision, 211 expansion_config.fab_revision); 212 MUX_GUMSTIX(); 213 setenv("defaultdisplay", "lcd43"); 214 setenv("expansionname", "chestnut43"); 215 break; 216 case GUMSTIX_PINTO: 217 printf("Recognized Pinto expansion board (rev %d %s)\n", 218 expansion_config.revision, 219 expansion_config.fab_revision); 220 MUX_GUMSTIX(); 221 break; 222 case GUMSTIX_GALLOP43: 223 printf("Recognized Gallop43 expansion board (rev %d %s)\n", 224 expansion_config.revision, 225 expansion_config.fab_revision); 226 MUX_GUMSTIX(); 227 setenv("defaultdisplay", "lcd43"); 228 setenv("expansionname", "gallop43"); 229 break; 230 case GUMSTIX_ALTO35: 231 printf("Recognized Alto35 expansion board (rev %d %s)\n", 232 expansion_config.revision, 233 expansion_config.fab_revision); 234 MUX_GUMSTIX(); 235 MUX_ALTO35(); 236 setenv("defaultdisplay", "lcd35"); 237 setenv("expansionname", "alto35"); 238 break; 239 case GUMSTIX_STAGECOACH: 240 printf("Recognized Stagecoach expansion board (rev %d %s)\n", 241 expansion_config.revision, 242 expansion_config.fab_revision); 243 MUX_GUMSTIX(); 244 break; 245 case GUMSTIX_THUMBO: 246 printf("Recognized Thumbo expansion board (rev %d %s)\n", 247 expansion_config.revision, 248 expansion_config.fab_revision); 249 MUX_GUMSTIX(); 250 break; 251 case GUMSTIX_TURTLECORE: 252 printf("Recognized Turtlecore expansion board (rev %d %s)\n", 253 expansion_config.revision, 254 expansion_config.fab_revision); 255 MUX_GUMSTIX(); 256 break; 257 case GUMSTIX_ARBOR43C: 258 printf("Recognized Arbor43C expansion board (rev %d %s)\n", 259 expansion_config.revision, 260 expansion_config.fab_revision); 261 MUX_GUMSTIX(); 262 MUX_ARBOR43C(); 263 setenv("defaultdisplay", "lcd43"); 264 setenv("expansionname", "arbor43c"); 265 break; 266 case ETTUS_USRP_E: 267 printf("Recognized Ettus Research USRP-E (rev %d %s)\n", 268 expansion_config.revision, 269 expansion_config.fab_revision); 270 MUX_GUMSTIX(); 271 MUX_USRP_E(); 272 setenv("defaultdisplay", "dvi"); 273 break; 274 case GUMSTIX_NO_EEPROM: 275 case GUMSTIX_EMPTY_EEPROM: 276 puts("No or empty EEPROM on expansion board\n"); 277 MUX_GUMSTIX(); 278 setenv("expansionname", "tobi"); 279 break; 280 default: 281 printf("Unrecognized expansion board 0x%08x\n", expansion_id); 282 break; 283 } 284 285 if (expansion_config.content == 1) 286 setenv(expansion_config.env_var, expansion_config.env_setting); 287 288 dieid_num_r(); 289 290 if (get_cpu_family() == CPU_OMAP34XX) 291 setenv("boardname", "overo"); 292 else 293 setenv("boardname", "overo-storm"); 294 295 return 0; 296 } 297 298 #if defined(CONFIG_CMD_NET) 299 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */ 300 static const u32 gpmc_lan_config[] = { 301 NET_LAN9221_GPMC_CONFIG1, 302 NET_LAN9221_GPMC_CONFIG2, 303 NET_LAN9221_GPMC_CONFIG3, 304 NET_LAN9221_GPMC_CONFIG4, 305 NET_LAN9221_GPMC_CONFIG5, 306 NET_LAN9221_GPMC_CONFIG6, 307 /*CONFIG7- computed as params */ 308 }; 309 310 /* 311 * Routine: setup_net_chip 312 * Description: Setting up the configuration GPMC registers specific to the 313 * Ethernet hardware. 314 */ 315 static void setup_net_chip(void) 316 { 317 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 318 319 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 320 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 321 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 322 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 323 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 324 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 325 &ctrl_base->gpmc_nadv_ale); 326 } 327 328 /* 329 * Routine: reset_net_chip 330 * Description: Reset the Ethernet hardware. 331 */ 332 static void reset_net_chip(void) 333 { 334 /* Make GPIO 64 as output pin and send a magic pulse through it */ 335 if (!gpio_request(64, "")) { 336 gpio_direction_output(64, 0); 337 gpio_set_value(64, 1); 338 udelay(1); 339 gpio_set_value(64, 0); 340 udelay(1); 341 gpio_set_value(64, 1); 342 } 343 } 344 345 int board_eth_init(bd_t *bis) 346 { 347 unsigned int expansion_id; 348 int rc = 0; 349 350 #ifdef CONFIG_SMC911X 351 expansion_id = get_expansion_id(); 352 switch (expansion_id) { 353 case GUMSTIX_TOBI_DUO: 354 /* second lan chip */ 355 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4], 356 0x2B000000, GPMC_SIZE_16M); 357 /* no break */ 358 case GUMSTIX_TOBI: 359 case GUMSTIX_CHESTNUT43: 360 case GUMSTIX_STAGECOACH: 361 case GUMSTIX_NO_EEPROM: 362 case GUMSTIX_EMPTY_EEPROM: 363 /* first lan chip */ 364 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 365 0x2C000000, GPMC_SIZE_16M); 366 367 setup_net_chip(); 368 reset_net_chip(); 369 370 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 371 break; 372 default: 373 break; 374 } 375 #endif 376 377 return rc; 378 } 379 #endif 380 381 #if defined(CONFIG_GENERIC_MMC) 382 int board_mmc_init(bd_t *bis) 383 { 384 return omap_mmc_init(0, 0, 0, -1, -1); 385 } 386 #endif 387 388 #if defined(CONFIG_GENERIC_MMC) 389 void board_mmc_power_init(void) 390 { 391 twl4030_power_mmc_init(0); 392 } 393 #endif 394 395 #if defined(CONFIG_USB_EHCI) 396 static struct omap_usbhs_board_data usbhs_bdata = { 397 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED, 398 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 399 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 400 }; 401 402 #define GUMSTIX_GPIO_USBH_CPEN 168 403 int ehci_hcd_init(int index, enum usb_init_type init, 404 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 405 { 406 /* Enable USB power */ 407 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen")) 408 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1); 409 410 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 411 } 412 413 int ehci_hcd_stop(void) 414 { 415 /* Disable USB power */ 416 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0); 417 gpio_free(GUMSTIX_GPIO_USBH_CPEN); 418 419 return omap_ehci_hcd_stop(); 420 } 421 422 #endif /* CONFIG_USB_EHCI */ 423