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 .base = OMAP34XX_UART3, 72 .reg_shift = 2, 73 .clock = V_NS16550_CLK, 74 .fcr = UART_FCR_DEFVAL, 75 }; 76 77 U_BOOT_DEVICE(overo_uart) = { 78 "ns16550_serial", 79 &overo_serial 80 }; 81 82 /* 83 * Routine: get_sdio2_config 84 * Description: Return information about the wifi module connection 85 * Returns 0 if the module connects though a level translator 86 * Returns 1 if the module connects directly 87 */ 88 int get_sdio2_config(void) 89 { 90 int sdio_direct; 91 92 if (!gpio_request(130, "") && !gpio_request(139, "")) { 93 94 gpio_direction_output(130, 0); 95 gpio_direction_input(139); 96 97 sdio_direct = 1; 98 gpio_set_value(130, 0); 99 if (gpio_get_value(139) == 0) { 100 gpio_set_value(130, 1); 101 if (gpio_get_value(139) == 1) 102 sdio_direct = 0; 103 } 104 105 gpio_direction_input(130); 106 } else { 107 puts("Error: unable to acquire sdio2 clk GPIOs\n"); 108 sdio_direct = -1; 109 } 110 111 return sdio_direct; 112 } 113 114 /* 115 * Routine: get_expansion_id 116 * Description: This function checks for expansion board by checking I2C 117 * bus 2 for the availability of an AT24C01B serial EEPROM. 118 * returns the device_vendor field from the EEPROM 119 */ 120 unsigned int get_expansion_id(void) 121 { 122 if (expansion_config.device_vendor != 0x0) 123 return expansion_config.device_vendor; 124 125 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 126 127 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */ 128 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 129 i2c_set_bus_num(TWL4030_I2C_BUS); 130 return GUMSTIX_NO_EEPROM; 131 } 132 133 /* read configuration data */ 134 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 135 sizeof(expansion_config)); 136 137 i2c_set_bus_num(TWL4030_I2C_BUS); 138 139 return expansion_config.device_vendor; 140 } 141 142 /* 143 * Routine: misc_init_r 144 * Description: Configure board specific parts 145 */ 146 int misc_init_r(void) 147 { 148 unsigned int expansion_id; 149 150 twl4030_power_init(); 151 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 152 153 printf("Board revision: %d\n", get_board_revision()); 154 155 switch (get_sdio2_config()) { 156 case 0: 157 puts("Tranceiver detected on mmc2\n"); 158 MUX_OVERO_SDIO2_TRANSCEIVER(); 159 break; 160 case 1: 161 puts("Direct connection on mmc2\n"); 162 MUX_OVERO_SDIO2_DIRECT(); 163 break; 164 default: 165 puts("Unable to detect mmc2 connection type\n"); 166 } 167 168 expansion_id = get_expansion_id(); 169 switch (expansion_id) { 170 case GUMSTIX_SUMMIT: 171 printf("Recognized Summit expansion board (rev %d %s)\n", 172 expansion_config.revision, 173 expansion_config.fab_revision); 174 MUX_GUMSTIX(); 175 setenv("defaultdisplay", "dvi"); 176 setenv("expansionname", "summit"); 177 break; 178 case GUMSTIX_TOBI: 179 printf("Recognized Tobi expansion board (rev %d %s)\n", 180 expansion_config.revision, 181 expansion_config.fab_revision); 182 MUX_GUMSTIX(); 183 setenv("defaultdisplay", "dvi"); 184 setenv("expansionname", "tobi"); 185 break; 186 case GUMSTIX_TOBI_DUO: 187 printf("Recognized Tobi Duo expansion board (rev %d %s)\n", 188 expansion_config.revision, 189 expansion_config.fab_revision); 190 MUX_GUMSTIX(); 191 setenv("expansionname", "tobiduo"); 192 break; 193 case GUMSTIX_PALO35: 194 printf("Recognized Palo35 expansion board (rev %d %s)\n", 195 expansion_config.revision, 196 expansion_config.fab_revision); 197 MUX_GUMSTIX(); 198 setenv("defaultdisplay", "lcd35"); 199 setenv("expansionname", "palo35"); 200 break; 201 case GUMSTIX_PALO43: 202 printf("Recognized Palo43 expansion board (rev %d %s)\n", 203 expansion_config.revision, 204 expansion_config.fab_revision); 205 MUX_GUMSTIX(); 206 setenv("defaultdisplay", "lcd43"); 207 setenv("expansionname", "palo43"); 208 break; 209 case GUMSTIX_CHESTNUT43: 210 printf("Recognized Chestnut43 expansion board (rev %d %s)\n", 211 expansion_config.revision, 212 expansion_config.fab_revision); 213 MUX_GUMSTIX(); 214 setenv("defaultdisplay", "lcd43"); 215 setenv("expansionname", "chestnut43"); 216 break; 217 case GUMSTIX_PINTO: 218 printf("Recognized Pinto expansion board (rev %d %s)\n", 219 expansion_config.revision, 220 expansion_config.fab_revision); 221 MUX_GUMSTIX(); 222 break; 223 case GUMSTIX_GALLOP43: 224 printf("Recognized Gallop43 expansion board (rev %d %s)\n", 225 expansion_config.revision, 226 expansion_config.fab_revision); 227 MUX_GUMSTIX(); 228 setenv("defaultdisplay", "lcd43"); 229 setenv("expansionname", "gallop43"); 230 break; 231 case GUMSTIX_ALTO35: 232 printf("Recognized Alto35 expansion board (rev %d %s)\n", 233 expansion_config.revision, 234 expansion_config.fab_revision); 235 MUX_GUMSTIX(); 236 MUX_ALTO35(); 237 setenv("defaultdisplay", "lcd35"); 238 setenv("expansionname", "alto35"); 239 break; 240 case GUMSTIX_STAGECOACH: 241 printf("Recognized Stagecoach expansion board (rev %d %s)\n", 242 expansion_config.revision, 243 expansion_config.fab_revision); 244 MUX_GUMSTIX(); 245 break; 246 case GUMSTIX_THUMBO: 247 printf("Recognized Thumbo expansion board (rev %d %s)\n", 248 expansion_config.revision, 249 expansion_config.fab_revision); 250 MUX_GUMSTIX(); 251 break; 252 case GUMSTIX_TURTLECORE: 253 printf("Recognized Turtlecore expansion board (rev %d %s)\n", 254 expansion_config.revision, 255 expansion_config.fab_revision); 256 MUX_GUMSTIX(); 257 break; 258 case GUMSTIX_ARBOR43C: 259 printf("Recognized Arbor43C expansion board (rev %d %s)\n", 260 expansion_config.revision, 261 expansion_config.fab_revision); 262 MUX_GUMSTIX(); 263 MUX_ARBOR43C(); 264 setenv("defaultdisplay", "lcd43"); 265 setenv("expansionname", "arbor43c"); 266 break; 267 case ETTUS_USRP_E: 268 printf("Recognized Ettus Research USRP-E (rev %d %s)\n", 269 expansion_config.revision, 270 expansion_config.fab_revision); 271 MUX_GUMSTIX(); 272 MUX_USRP_E(); 273 setenv("defaultdisplay", "dvi"); 274 break; 275 case GUMSTIX_NO_EEPROM: 276 case GUMSTIX_EMPTY_EEPROM: 277 puts("No or empty EEPROM on expansion board\n"); 278 MUX_GUMSTIX(); 279 setenv("expansionname", "tobi"); 280 break; 281 default: 282 printf("Unrecognized expansion board 0x%08x\n", expansion_id); 283 break; 284 } 285 286 if (expansion_config.content == 1) 287 setenv(expansion_config.env_var, expansion_config.env_setting); 288 289 omap_die_id_display(); 290 291 if (get_cpu_family() == CPU_OMAP34XX) 292 setenv("boardname", "overo"); 293 else 294 setenv("boardname", "overo-storm"); 295 296 return 0; 297 } 298 299 #if defined(CONFIG_CMD_NET) 300 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */ 301 static const u32 gpmc_lan_config[] = { 302 NET_LAN9221_GPMC_CONFIG1, 303 NET_LAN9221_GPMC_CONFIG2, 304 NET_LAN9221_GPMC_CONFIG3, 305 NET_LAN9221_GPMC_CONFIG4, 306 NET_LAN9221_GPMC_CONFIG5, 307 NET_LAN9221_GPMC_CONFIG6, 308 /*CONFIG7- computed as params */ 309 }; 310 311 /* 312 * Routine: setup_net_chip 313 * Description: Setting up the configuration GPMC registers specific to the 314 * Ethernet hardware. 315 */ 316 static void setup_net_chip(void) 317 { 318 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 319 320 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 321 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 322 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 323 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 324 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 325 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 326 &ctrl_base->gpmc_nadv_ale); 327 } 328 329 /* 330 * Routine: reset_net_chip 331 * Description: Reset the Ethernet hardware. 332 */ 333 static void reset_net_chip(void) 334 { 335 /* Make GPIO 64 as output pin and send a magic pulse through it */ 336 if (!gpio_request(64, "")) { 337 gpio_direction_output(64, 0); 338 gpio_set_value(64, 1); 339 udelay(1); 340 gpio_set_value(64, 0); 341 udelay(1); 342 gpio_set_value(64, 1); 343 } 344 } 345 346 int board_eth_init(bd_t *bis) 347 { 348 unsigned int expansion_id; 349 int rc = 0; 350 351 #ifdef CONFIG_SMC911X 352 expansion_id = get_expansion_id(); 353 switch (expansion_id) { 354 case GUMSTIX_TOBI_DUO: 355 /* second lan chip */ 356 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4], 357 0x2B000000, GPMC_SIZE_16M); 358 /* no break */ 359 case GUMSTIX_TOBI: 360 case GUMSTIX_CHESTNUT43: 361 case GUMSTIX_STAGECOACH: 362 case GUMSTIX_NO_EEPROM: 363 case GUMSTIX_EMPTY_EEPROM: 364 /* first lan chip */ 365 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 366 0x2C000000, GPMC_SIZE_16M); 367 368 setup_net_chip(); 369 reset_net_chip(); 370 371 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 372 break; 373 default: 374 break; 375 } 376 #endif 377 378 return rc; 379 } 380 #endif 381 382 #if defined(CONFIG_GENERIC_MMC) 383 int board_mmc_init(bd_t *bis) 384 { 385 return omap_mmc_init(0, 0, 0, -1, -1); 386 } 387 #endif 388 389 #if defined(CONFIG_GENERIC_MMC) 390 void board_mmc_power_init(void) 391 { 392 twl4030_power_mmc_init(0); 393 } 394 #endif 395 396 #if defined(CONFIG_USB_EHCI) 397 static struct omap_usbhs_board_data usbhs_bdata = { 398 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED, 399 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 400 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 401 }; 402 403 #define GUMSTIX_GPIO_USBH_CPEN 168 404 int ehci_hcd_init(int index, enum usb_init_type init, 405 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 406 { 407 /* Enable USB power */ 408 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen")) 409 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1); 410 411 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 412 } 413 414 int ehci_hcd_stop(void) 415 { 416 /* Disable USB power */ 417 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0); 418 gpio_free(GUMSTIX_GPIO_USBH_CPEN); 419 420 return omap_ehci_hcd_stop(); 421 } 422 423 #endif /* CONFIG_USB_EHCI */ 424