1 /* 2 * Legacy platform_data quirks 3 * 4 * Copyright (C) 2013 Texas Instruments 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 #include <linux/clk.h> 11 #include <linux/davinci_emac.h> 12 #include <linux/gpio.h> 13 #include <linux/init.h> 14 #include <linux/kernel.h> 15 #include <linux/of_platform.h> 16 #include <linux/ti_wilink_st.h> 17 #include <linux/wl12xx.h> 18 #include <linux/mmc/card.h> 19 #include <linux/mmc/host.h> 20 #include <linux/regulator/machine.h> 21 #include <linux/regulator/fixed.h> 22 23 #include <linux/platform_data/pinctrl-single.h> 24 #include <linux/platform_data/iommu-omap.h> 25 #include <linux/platform_data/wkup_m3.h> 26 27 #include "common.h" 28 #include "common-board-devices.h" 29 #include "dss-common.h" 30 #include "control.h" 31 #include "omap_device.h" 32 #include "omap-secure.h" 33 #include "soc.h" 34 #include "hsmmc.h" 35 36 struct pdata_init { 37 const char *compatible; 38 void (*fn)(void); 39 }; 40 41 static struct of_dev_auxdata omap_auxdata_lookup[]; 42 static struct twl4030_gpio_platform_data twl_gpio_auxdata; 43 44 #ifdef CONFIG_MACH_NOKIA_N8X0 45 static void __init omap2420_n8x0_legacy_init(void) 46 { 47 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); 48 } 49 #else 50 #define omap2420_n8x0_legacy_init NULL 51 #endif 52 53 #ifdef CONFIG_ARCH_OMAP3 54 /* 55 * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V 56 * mode for MMC1 in case bootloader did not configure things. 57 * Note that if the pins are used for MMC1, pbias-regulator 58 * manages the IO voltage. 59 */ 60 static void __init omap3_gpio126_127_129(void) 61 { 62 u32 reg; 63 64 reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); 65 reg &= ~OMAP343X_PBIASLITEVMODE1; 66 reg |= OMAP343X_PBIASLITEPWRDNZ1; 67 omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE); 68 if (cpu_is_omap3630()) { 69 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL); 70 reg |= OMAP36XX_GPIO_IO_PWRDNZ; 71 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL); 72 } 73 } 74 75 static void __init hsmmc2_internal_input_clk(void) 76 { 77 u32 reg; 78 79 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); 80 reg |= OMAP2_MMCSDIO2ADPCLKISEL; 81 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); 82 } 83 84 static struct iommu_platform_data omap3_iommu_pdata = { 85 .reset_name = "mmu", 86 .assert_reset = omap_device_assert_hardreset, 87 .deassert_reset = omap_device_deassert_hardreset, 88 }; 89 90 static int omap3_sbc_t3730_twl_callback(struct device *dev, 91 unsigned gpio, 92 unsigned ngpio) 93 { 94 int res; 95 96 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, 97 "wlan pwr"); 98 if (res) 99 return res; 100 101 gpio_export(gpio, 0); 102 103 return 0; 104 } 105 106 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name) 107 { 108 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name); 109 110 if (err) { 111 pr_err("SBC-T3x: %s reset gpio request failed: %d\n", 112 hub_name, err); 113 return; 114 } 115 116 gpio_export(gpio, 0); 117 118 udelay(10); 119 gpio_set_value(gpio, 1); 120 msleep(1); 121 } 122 123 static void __init omap3_sbc_t3730_twl_init(void) 124 { 125 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback; 126 } 127 128 static void __init omap3_sbc_t3730_legacy_init(void) 129 { 130 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 131 } 132 133 static void __init omap3_sbc_t3530_legacy_init(void) 134 { 135 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 136 } 137 138 static struct ti_st_plat_data wilink_pdata = { 139 .nshutdown_gpio = 137, 140 .dev_name = "/dev/ttyO1", 141 .flow_cntrl = 1, 142 .baud_rate = 300000, 143 }; 144 145 static struct platform_device wl18xx_device = { 146 .name = "kim", 147 .id = -1, 148 .dev = { 149 .platform_data = &wilink_pdata, 150 } 151 }; 152 153 static struct ti_st_plat_data wilink7_pdata = { 154 .nshutdown_gpio = 162, 155 .dev_name = "/dev/ttyO1", 156 .flow_cntrl = 1, 157 .baud_rate = 300000, 158 }; 159 160 static struct platform_device wl128x_device = { 161 .name = "kim", 162 .id = -1, 163 .dev = { 164 .platform_data = &wilink7_pdata, 165 } 166 }; 167 168 static struct platform_device btwilink_device = { 169 .name = "btwilink", 170 .id = -1, 171 }; 172 173 static void __init omap3_igep0020_rev_f_legacy_init(void) 174 { 175 platform_device_register(&wl18xx_device); 176 platform_device_register(&btwilink_device); 177 } 178 179 static void __init omap3_igep0030_rev_g_legacy_init(void) 180 { 181 platform_device_register(&wl18xx_device); 182 platform_device_register(&btwilink_device); 183 } 184 185 static void __init omap3_evm_legacy_init(void) 186 { 187 hsmmc2_internal_input_clk(); 188 } 189 190 static void am35xx_enable_emac_int(void) 191 { 192 u32 v; 193 194 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 195 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | 196 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); 197 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 198 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 199 } 200 201 static void am35xx_disable_emac_int(void) 202 { 203 u32 v; 204 205 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 206 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); 207 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 208 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 209 } 210 211 static struct emac_platform_data am35xx_emac_pdata = { 212 .interrupt_enable = am35xx_enable_emac_int, 213 .interrupt_disable = am35xx_disable_emac_int, 214 }; 215 216 static void __init am35xx_emac_reset(void) 217 { 218 u32 v; 219 220 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); 221 v &= ~AM35XX_CPGMACSS_SW_RST; 222 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); 223 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ 224 } 225 226 static struct gpio cm_t3517_wlan_gpios[] __initdata = { 227 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" }, 228 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" }, 229 }; 230 231 static void __init omap3_sbc_t3517_wifi_init(void) 232 { 233 int err = gpio_request_array(cm_t3517_wlan_gpios, 234 ARRAY_SIZE(cm_t3517_wlan_gpios)); 235 if (err) { 236 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err); 237 return; 238 } 239 240 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0); 241 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0); 242 243 msleep(100); 244 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0); 245 } 246 247 static void __init omap3_sbc_t3517_legacy_init(void) 248 { 249 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub"); 250 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub"); 251 am35xx_emac_reset(); 252 hsmmc2_internal_input_clk(); 253 omap3_sbc_t3517_wifi_init(); 254 } 255 256 static void __init am3517_evm_legacy_init(void) 257 { 258 am35xx_emac_reset(); 259 } 260 261 static struct platform_device omap3_rom_rng_device = { 262 .name = "omap3-rom-rng", 263 .id = -1, 264 .dev = { 265 .platform_data = rx51_secure_rng_call, 266 }, 267 }; 268 269 static void __init nokia_n900_legacy_init(void) 270 { 271 hsmmc2_internal_input_clk(); 272 273 if (omap_type() == OMAP2_DEVICE_TYPE_SEC) { 274 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { 275 pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); 276 /* set IBE to 1 */ 277 rx51_secure_update_aux_cr(BIT(6), 0); 278 } else { 279 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); 280 pr_warn("Thumb binaries may crash randomly without this workaround\n"); 281 } 282 283 pr_info("RX-51: Registering OMAP3 HWRNG device\n"); 284 platform_device_register(&omap3_rom_rng_device); 285 286 } 287 } 288 289 static void __init omap3_tao3530_legacy_init(void) 290 { 291 hsmmc2_internal_input_clk(); 292 } 293 294 static void __init omap3_logicpd_torpedo_init(void) 295 { 296 omap3_gpio126_127_129(); 297 platform_device_register(&wl128x_device); 298 platform_device_register(&btwilink_device); 299 } 300 301 /* omap3pandora legacy devices */ 302 #define PANDORA_WIFI_IRQ_GPIO 21 303 #define PANDORA_WIFI_NRESET_GPIO 23 304 305 static struct platform_device pandora_backlight = { 306 .name = "pandora-backlight", 307 .id = -1, 308 }; 309 310 static struct regulator_consumer_supply pandora_vmmc3_supply[] = { 311 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"), 312 }; 313 314 static struct regulator_init_data pandora_vmmc3 = { 315 .constraints = { 316 .valid_ops_mask = REGULATOR_CHANGE_STATUS, 317 }, 318 .num_consumer_supplies = ARRAY_SIZE(pandora_vmmc3_supply), 319 .consumer_supplies = pandora_vmmc3_supply, 320 }; 321 322 static struct fixed_voltage_config pandora_vwlan = { 323 .supply_name = "vwlan", 324 .microvolts = 1800000, /* 1.8V */ 325 .gpio = PANDORA_WIFI_NRESET_GPIO, 326 .startup_delay = 50000, /* 50ms */ 327 .enable_high = 1, 328 .init_data = &pandora_vmmc3, 329 }; 330 331 static struct platform_device pandora_vwlan_device = { 332 .name = "reg-fixed-voltage", 333 .id = 1, 334 .dev = { 335 .platform_data = &pandora_vwlan, 336 }, 337 }; 338 339 static void pandora_wl1251_init_card(struct mmc_card *card) 340 { 341 /* 342 * We have TI wl1251 attached to MMC3. Pass this information to 343 * SDIO core because it can't be probed by normal methods. 344 */ 345 if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) { 346 card->quirks |= MMC_QUIRK_NONSTD_SDIO; 347 card->cccr.wide_bus = 1; 348 card->cis.vendor = 0x104c; 349 card->cis.device = 0x9066; 350 card->cis.blksize = 512; 351 card->cis.max_dtr = 24000000; 352 card->ocr = 0x80; 353 } 354 } 355 356 static struct omap2_hsmmc_info pandora_mmc3[] = { 357 { 358 .mmc = 3, 359 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD, 360 .gpio_cd = -EINVAL, 361 .gpio_wp = -EINVAL, 362 .init_card = pandora_wl1251_init_card, 363 }, 364 {} /* Terminator */ 365 }; 366 367 static void __init pandora_wl1251_init(void) 368 { 369 struct wl1251_platform_data pandora_wl1251_pdata; 370 int ret; 371 372 memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata)); 373 374 pandora_wl1251_pdata.power_gpio = -1; 375 376 ret = gpio_request_one(PANDORA_WIFI_IRQ_GPIO, GPIOF_IN, "wl1251 irq"); 377 if (ret < 0) 378 goto fail; 379 380 pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO); 381 if (pandora_wl1251_pdata.irq < 0) 382 goto fail_irq; 383 384 pandora_wl1251_pdata.use_eeprom = true; 385 ret = wl1251_set_platform_data(&pandora_wl1251_pdata); 386 if (ret < 0) 387 goto fail_irq; 388 389 return; 390 391 fail_irq: 392 gpio_free(PANDORA_WIFI_IRQ_GPIO); 393 fail: 394 pr_err("wl1251 board initialisation failed\n"); 395 } 396 397 static void __init omap3_pandora_legacy_init(void) 398 { 399 platform_device_register(&pandora_backlight); 400 platform_device_register(&pandora_vwlan_device); 401 omap_hsmmc_init(pandora_mmc3); 402 omap_hsmmc_late_init(pandora_mmc3); 403 pandora_wl1251_init(); 404 } 405 #endif /* CONFIG_ARCH_OMAP3 */ 406 407 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 408 static struct iommu_platform_data omap4_iommu_pdata = { 409 .reset_name = "mmu_cache", 410 .assert_reset = omap_device_assert_hardreset, 411 .deassert_reset = omap_device_deassert_hardreset, 412 }; 413 #endif 414 415 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX) 416 static struct wkup_m3_platform_data wkup_m3_data = { 417 .reset_name = "wkup_m3", 418 .assert_reset = omap_device_assert_hardreset, 419 .deassert_reset = omap_device_deassert_hardreset, 420 }; 421 #endif 422 423 #ifdef CONFIG_SOC_OMAP5 424 static void __init omap5_uevm_legacy_init(void) 425 { 426 } 427 #endif 428 429 static struct pcs_pdata pcs_pdata; 430 431 void omap_pcs_legacy_init(int irq, void (*rearm)(void)) 432 { 433 pcs_pdata.irq = irq; 434 pcs_pdata.rearm = rearm; 435 } 436 437 /* 438 * GPIOs for TWL are initialized by the I2C bus and need custom 439 * handing until DSS has device tree bindings. 440 */ 441 void omap_auxdata_legacy_init(struct device *dev) 442 { 443 if (dev->platform_data) 444 return; 445 446 if (strcmp("twl4030-gpio", dev_name(dev))) 447 return; 448 449 dev->platform_data = &twl_gpio_auxdata; 450 } 451 452 /* 453 * Few boards still need auxdata populated before we populate 454 * the dev entries in of_platform_populate(). 455 */ 456 static struct pdata_init auxdata_quirks[] __initdata = { 457 #ifdef CONFIG_SOC_OMAP2420 458 { "nokia,n800", omap2420_n8x0_legacy_init, }, 459 { "nokia,n810", omap2420_n8x0_legacy_init, }, 460 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, 461 #endif 462 #ifdef CONFIG_ARCH_OMAP3 463 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, 464 #endif 465 { /* sentinel */ }, 466 }; 467 468 static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { 469 #ifdef CONFIG_MACH_NOKIA_N8X0 470 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), 471 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data), 472 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data), 473 #endif 474 #ifdef CONFIG_ARCH_OMAP3 475 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata), 476 OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata), 477 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata), 478 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu", 479 &omap3_iommu_pdata), 480 /* Only on am3517 */ 481 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), 482 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", 483 &am35xx_emac_pdata), 484 #endif 485 #ifdef CONFIG_SOC_AM33XX 486 OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3", 487 &wkup_m3_data), 488 #endif 489 #ifdef CONFIG_ARCH_OMAP4 490 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata), 491 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata), 492 #endif 493 #ifdef CONFIG_SOC_OMAP5 494 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata), 495 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata), 496 #endif 497 #ifdef CONFIG_SOC_DRA7XX 498 OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata), 499 #endif 500 #ifdef CONFIG_SOC_AM43XX 501 OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata), 502 OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3", 503 &wkup_m3_data), 504 #endif 505 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 506 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu", 507 &omap4_iommu_pdata), 508 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu", 509 &omap4_iommu_pdata), 510 #endif 511 { /* sentinel */ }, 512 }; 513 514 /* 515 * Few boards still need to initialize some legacy devices with 516 * platform data until the drivers support device tree. 517 */ 518 static struct pdata_init pdata_quirks[] __initdata = { 519 #ifdef CONFIG_ARCH_OMAP3 520 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, }, 521 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, 522 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, 523 { "nokia,omap3-n900", nokia_n900_legacy_init, }, 524 { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, 525 { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, 526 { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, }, 527 { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, }, 528 { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, }, 529 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, 530 { "ti,am3517-evm", am3517_evm_legacy_init, }, 531 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, }, 532 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, }, 533 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, }, 534 #endif 535 #ifdef CONFIG_SOC_OMAP5 536 { "ti,omap5-uevm", omap5_uevm_legacy_init, }, 537 #endif 538 { /* sentinel */ }, 539 }; 540 541 static void pdata_quirks_check(struct pdata_init *quirks) 542 { 543 while (quirks->compatible) { 544 if (of_machine_is_compatible(quirks->compatible)) { 545 if (quirks->fn) 546 quirks->fn(); 547 break; 548 } 549 quirks++; 550 } 551 } 552 553 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) 554 { 555 /* 556 * We still need this for omap2420 and omap3 PM to work, others are 557 * using drivers/misc/sram.c already. 558 */ 559 if (of_machine_is_compatible("ti,omap2420") || 560 of_machine_is_compatible("ti,omap3")) 561 omap_sdrc_init(NULL, NULL); 562 563 pdata_quirks_check(auxdata_quirks); 564 of_platform_populate(NULL, omap_dt_match_table, 565 omap_auxdata_lookup, NULL); 566 pdata_quirks_check(pdata_quirks); 567 } 568