1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Maintainer : Steve Sakoman <steve@sakoman.com> 4 * 5 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by 6 * Richard Woodruff <r-woodruff2@ti.com> 7 * Syed Mohammed Khasim <khasim@ti.com> 8 * Sunil Kumar <sunilsaini05@gmail.com> 9 * Shashi Ranjan <shashiranjanmca05@gmail.com> 10 * 11 * (C) Copyright 2004-2008 12 * Texas Instruments, <www.ti.com> 13 */ 14 #include <common.h> 15 #include <dm.h> 16 #include <ns16550.h> 17 #include <netdev.h> 18 #include <twl4030.h> 19 #include <linux/mtd/rawnand.h> 20 #include <asm/io.h> 21 #include <asm/arch/mmc_host_def.h> 22 #include <asm/arch/mux.h> 23 #include <asm/arch/mem.h> 24 #include <asm/arch/sys_proto.h> 25 #include <asm/gpio.h> 26 #include <asm/mach-types.h> 27 #include "overo.h" 28 29 #ifdef CONFIG_USB_EHCI_HCD 30 #include <usb.h> 31 #include <asm/ehci-omap.h> 32 #endif 33 34 #define TWL4030_I2C_BUS 0 35 #define EXPANSION_EEPROM_I2C_BUS 2 36 #define EXPANSION_EEPROM_I2C_ADDRESS 0x51 37 38 #define GUMSTIX_EMPTY_EEPROM 0x0 39 40 #define GUMSTIX_SUMMIT 0x01000200 41 #define GUMSTIX_TOBI 0x02000200 42 #define GUMSTIX_TOBI_DUO 0x03000200 43 #define GUMSTIX_PALO35 0x04000200 44 #define GUMSTIX_PALO43 0x05000200 45 #define GUMSTIX_CHESTNUT43 0x06000200 46 #define GUMSTIX_PINTO 0x07000200 47 #define GUMSTIX_GALLOP43 0x08000200 48 #define GUMSTIX_ALTO35 0x09000200 49 #define GUMSTIX_STAGECOACH 0x0A000200 50 #define GUMSTIX_THUMBO 0x0B000200 51 #define GUMSTIX_TURTLECORE 0x0C000200 52 #define GUMSTIX_ARBOR43C 0x0D000200 53 54 #define ETTUS_USRP_E 0x01000300 55 56 #define GUMSTIX_NO_EEPROM 0xffffffff 57 58 static struct { 59 unsigned int device_vendor; 60 unsigned char revision; 61 unsigned char content; 62 char fab_revision[8]; 63 char env_var[16]; 64 char env_setting[64]; 65 } expansion_config = {0x0}; 66 67 static const struct ns16550_platdata overo_serial = { 68 .base = OMAP34XX_UART3, 69 .reg_shift = 2, 70 .clock = V_NS16550_CLK, 71 .fcr = UART_FCR_DEFVAL, 72 }; 73 74 U_BOOT_DEVICE(overo_uart) = { 75 "ns16550_serial", 76 &overo_serial 77 }; 78 79 /* 80 * Routine: get_sdio2_config 81 * Description: Return information about the wifi module connection 82 * Returns 0 if the module connects though a level translator 83 * Returns 1 if the module connects directly 84 */ 85 int get_sdio2_config(void) 86 { 87 int sdio_direct; 88 89 if (!gpio_request(130, "") && !gpio_request(139, "")) { 90 91 gpio_direction_output(130, 0); 92 gpio_direction_input(139); 93 94 sdio_direct = 1; 95 gpio_set_value(130, 0); 96 if (gpio_get_value(139) == 0) { 97 gpio_set_value(130, 1); 98 if (gpio_get_value(139) == 1) 99 sdio_direct = 0; 100 } 101 102 gpio_direction_input(130); 103 } else { 104 puts("Error: unable to acquire sdio2 clk GPIOs\n"); 105 sdio_direct = -1; 106 } 107 108 return sdio_direct; 109 } 110 111 /* 112 * Routine: get_expansion_id 113 * Description: This function checks for expansion board by checking I2C 114 * bus 2 for the availability of an AT24C01B serial EEPROM. 115 * returns the device_vendor field from the EEPROM 116 */ 117 unsigned int get_expansion_id(void) 118 { 119 if (expansion_config.device_vendor != 0x0) 120 return expansion_config.device_vendor; 121 122 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); 123 124 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */ 125 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { 126 i2c_set_bus_num(TWL4030_I2C_BUS); 127 return GUMSTIX_NO_EEPROM; 128 } 129 130 /* read configuration data */ 131 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, 132 sizeof(expansion_config)); 133 134 i2c_set_bus_num(TWL4030_I2C_BUS); 135 136 return expansion_config.device_vendor; 137 } 138 139 /* 140 * Routine: misc_init_r 141 * Description: Configure board specific parts 142 */ 143 int misc_init_r(void) 144 { 145 unsigned int expansion_id; 146 147 twl4030_power_init(); 148 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 149 150 printf("Board revision: %d\n", get_board_revision()); 151 152 switch (get_sdio2_config()) { 153 case 0: 154 puts("Tranceiver detected on mmc2\n"); 155 MUX_OVERO_SDIO2_TRANSCEIVER(); 156 break; 157 case 1: 158 puts("Direct connection on mmc2\n"); 159 MUX_OVERO_SDIO2_DIRECT(); 160 break; 161 default: 162 puts("Unable to detect mmc2 connection type\n"); 163 } 164 165 expansion_id = get_expansion_id(); 166 switch (expansion_id) { 167 case GUMSTIX_SUMMIT: 168 printf("Recognized Summit expansion board (rev %d %s)\n", 169 expansion_config.revision, 170 expansion_config.fab_revision); 171 MUX_GUMSTIX(); 172 env_set("defaultdisplay", "dvi"); 173 env_set("expansionname", "summit"); 174 break; 175 case GUMSTIX_TOBI: 176 printf("Recognized Tobi expansion board (rev %d %s)\n", 177 expansion_config.revision, 178 expansion_config.fab_revision); 179 MUX_GUMSTIX(); 180 env_set("defaultdisplay", "dvi"); 181 env_set("expansionname", "tobi"); 182 break; 183 case GUMSTIX_TOBI_DUO: 184 printf("Recognized Tobi Duo expansion board (rev %d %s)\n", 185 expansion_config.revision, 186 expansion_config.fab_revision); 187 MUX_GUMSTIX(); 188 env_set("expansionname", "tobiduo"); 189 break; 190 case GUMSTIX_PALO35: 191 printf("Recognized Palo35 expansion board (rev %d %s)\n", 192 expansion_config.revision, 193 expansion_config.fab_revision); 194 MUX_GUMSTIX(); 195 env_set("defaultdisplay", "lcd35"); 196 env_set("expansionname", "palo35"); 197 break; 198 case GUMSTIX_PALO43: 199 printf("Recognized Palo43 expansion board (rev %d %s)\n", 200 expansion_config.revision, 201 expansion_config.fab_revision); 202 MUX_GUMSTIX(); 203 env_set("defaultdisplay", "lcd43"); 204 env_set("expansionname", "palo43"); 205 break; 206 case GUMSTIX_CHESTNUT43: 207 printf("Recognized Chestnut43 expansion board (rev %d %s)\n", 208 expansion_config.revision, 209 expansion_config.fab_revision); 210 MUX_GUMSTIX(); 211 env_set("defaultdisplay", "lcd43"); 212 env_set("expansionname", "chestnut43"); 213 break; 214 case GUMSTIX_PINTO: 215 printf("Recognized Pinto expansion board (rev %d %s)\n", 216 expansion_config.revision, 217 expansion_config.fab_revision); 218 MUX_GUMSTIX(); 219 break; 220 case GUMSTIX_GALLOP43: 221 printf("Recognized Gallop43 expansion board (rev %d %s)\n", 222 expansion_config.revision, 223 expansion_config.fab_revision); 224 MUX_GUMSTIX(); 225 env_set("defaultdisplay", "lcd43"); 226 env_set("expansionname", "gallop43"); 227 break; 228 case GUMSTIX_ALTO35: 229 printf("Recognized Alto35 expansion board (rev %d %s)\n", 230 expansion_config.revision, 231 expansion_config.fab_revision); 232 MUX_GUMSTIX(); 233 MUX_ALTO35(); 234 env_set("defaultdisplay", "lcd35"); 235 env_set("expansionname", "alto35"); 236 break; 237 case GUMSTIX_STAGECOACH: 238 printf("Recognized Stagecoach expansion board (rev %d %s)\n", 239 expansion_config.revision, 240 expansion_config.fab_revision); 241 MUX_GUMSTIX(); 242 break; 243 case GUMSTIX_THUMBO: 244 printf("Recognized Thumbo expansion board (rev %d %s)\n", 245 expansion_config.revision, 246 expansion_config.fab_revision); 247 MUX_GUMSTIX(); 248 break; 249 case GUMSTIX_TURTLECORE: 250 printf("Recognized Turtlecore expansion board (rev %d %s)\n", 251 expansion_config.revision, 252 expansion_config.fab_revision); 253 MUX_GUMSTIX(); 254 break; 255 case GUMSTIX_ARBOR43C: 256 printf("Recognized Arbor43C expansion board (rev %d %s)\n", 257 expansion_config.revision, 258 expansion_config.fab_revision); 259 MUX_GUMSTIX(); 260 MUX_ARBOR43C(); 261 env_set("defaultdisplay", "lcd43"); 262 env_set("expansionname", "arbor43c"); 263 break; 264 case ETTUS_USRP_E: 265 printf("Recognized Ettus Research USRP-E (rev %d %s)\n", 266 expansion_config.revision, 267 expansion_config.fab_revision); 268 MUX_GUMSTIX(); 269 MUX_USRP_E(); 270 env_set("defaultdisplay", "dvi"); 271 break; 272 case GUMSTIX_NO_EEPROM: 273 case GUMSTIX_EMPTY_EEPROM: 274 puts("No or empty EEPROM on expansion board\n"); 275 MUX_GUMSTIX(); 276 env_set("expansionname", "tobi"); 277 break; 278 default: 279 printf("Unrecognized expansion board 0x%08x\n", expansion_id); 280 break; 281 } 282 283 if (expansion_config.content == 1) 284 env_set(expansion_config.env_var, expansion_config.env_setting); 285 286 omap_die_id_display(); 287 288 if (get_cpu_family() == CPU_OMAP34XX) 289 env_set("boardname", "overo"); 290 else 291 env_set("boardname", "overo-storm"); 292 293 return 0; 294 } 295 296 #if defined(CONFIG_CMD_NET) 297 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */ 298 static const u32 gpmc_lan_config[] = { 299 NET_LAN9221_GPMC_CONFIG1, 300 NET_LAN9221_GPMC_CONFIG2, 301 NET_LAN9221_GPMC_CONFIG3, 302 NET_LAN9221_GPMC_CONFIG4, 303 NET_LAN9221_GPMC_CONFIG5, 304 NET_LAN9221_GPMC_CONFIG6, 305 /*CONFIG7- computed as params */ 306 }; 307 308 /* 309 * Routine: setup_net_chip 310 * Description: Setting up the configuration GPMC registers specific to the 311 * Ethernet hardware. 312 */ 313 static void setup_net_chip(void) 314 { 315 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 316 317 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 318 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 319 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 320 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 321 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 322 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 323 &ctrl_base->gpmc_nadv_ale); 324 } 325 326 /* 327 * Routine: reset_net_chip 328 * Description: Reset the Ethernet hardware. 329 */ 330 static void reset_net_chip(void) 331 { 332 /* Make GPIO 64 as output pin and send a magic pulse through it */ 333 if (!gpio_request(64, "")) { 334 gpio_direction_output(64, 0); 335 gpio_set_value(64, 1); 336 udelay(1); 337 gpio_set_value(64, 0); 338 udelay(1); 339 gpio_set_value(64, 1); 340 } 341 } 342 343 int board_eth_init(bd_t *bis) 344 { 345 unsigned int expansion_id; 346 int rc = 0; 347 348 #ifdef CONFIG_SMC911X 349 expansion_id = get_expansion_id(); 350 switch (expansion_id) { 351 case GUMSTIX_TOBI_DUO: 352 /* second lan chip */ 353 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4], 354 0x2B000000, GPMC_SIZE_16M); 355 /* no break */ 356 case GUMSTIX_TOBI: 357 case GUMSTIX_CHESTNUT43: 358 case GUMSTIX_STAGECOACH: 359 case GUMSTIX_NO_EEPROM: 360 case GUMSTIX_EMPTY_EEPROM: 361 /* first lan chip */ 362 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 363 0x2C000000, GPMC_SIZE_16M); 364 365 setup_net_chip(); 366 reset_net_chip(); 367 368 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 369 break; 370 default: 371 break; 372 } 373 #endif 374 375 return rc; 376 } 377 #endif 378 379 #if defined(CONFIG_MMC) 380 int board_mmc_init(bd_t *bis) 381 { 382 return omap_mmc_init(0, 0, 0, -1, -1); 383 } 384 #endif 385 386 #if defined(CONFIG_MMC) 387 void board_mmc_power_init(void) 388 { 389 twl4030_power_mmc_init(0); 390 } 391 #endif 392 393 #if defined(CONFIG_USB_EHCI_HCD) 394 static struct omap_usbhs_board_data usbhs_bdata = { 395 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED, 396 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 397 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED 398 }; 399 400 #define GUMSTIX_GPIO_USBH_CPEN 168 401 int ehci_hcd_init(int index, enum usb_init_type init, 402 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 403 { 404 /* Enable USB power */ 405 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen")) 406 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1); 407 408 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); 409 } 410 411 int ehci_hcd_stop(void) 412 { 413 /* Disable USB power */ 414 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0); 415 gpio_free(GUMSTIX_GPIO_USBH_CPEN); 416 417 return omap_ehci_hcd_stop(); 418 } 419 420 #endif /* CONFIG_USB_EHCI_HCD */ 421