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 platform_device btwilink_device = { 154 .name = "btwilink", 155 .id = -1, 156 }; 157 158 static void __init omap3_igep0020_rev_f_legacy_init(void) 159 { 160 platform_device_register(&wl18xx_device); 161 platform_device_register(&btwilink_device); 162 } 163 164 static void __init omap3_igep0030_rev_g_legacy_init(void) 165 { 166 platform_device_register(&wl18xx_device); 167 platform_device_register(&btwilink_device); 168 } 169 170 static void __init omap3_evm_legacy_init(void) 171 { 172 hsmmc2_internal_input_clk(); 173 } 174 175 static void am35xx_enable_emac_int(void) 176 { 177 u32 v; 178 179 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 180 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | 181 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); 182 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 183 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 184 } 185 186 static void am35xx_disable_emac_int(void) 187 { 188 u32 v; 189 190 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 191 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); 192 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 193 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 194 } 195 196 static struct emac_platform_data am35xx_emac_pdata = { 197 .interrupt_enable = am35xx_enable_emac_int, 198 .interrupt_disable = am35xx_disable_emac_int, 199 }; 200 201 static void __init am35xx_emac_reset(void) 202 { 203 u32 v; 204 205 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); 206 v &= ~AM35XX_CPGMACSS_SW_RST; 207 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); 208 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ 209 } 210 211 static struct gpio cm_t3517_wlan_gpios[] __initdata = { 212 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" }, 213 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" }, 214 }; 215 216 static void __init omap3_sbc_t3517_wifi_init(void) 217 { 218 int err = gpio_request_array(cm_t3517_wlan_gpios, 219 ARRAY_SIZE(cm_t3517_wlan_gpios)); 220 if (err) { 221 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err); 222 return; 223 } 224 225 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0); 226 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0); 227 228 msleep(100); 229 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0); 230 } 231 232 static void __init omap3_sbc_t3517_legacy_init(void) 233 { 234 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub"); 235 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub"); 236 am35xx_emac_reset(); 237 hsmmc2_internal_input_clk(); 238 omap3_sbc_t3517_wifi_init(); 239 } 240 241 static void __init am3517_evm_legacy_init(void) 242 { 243 am35xx_emac_reset(); 244 } 245 246 static struct platform_device omap3_rom_rng_device = { 247 .name = "omap3-rom-rng", 248 .id = -1, 249 .dev = { 250 .platform_data = rx51_secure_rng_call, 251 }, 252 }; 253 254 static void __init nokia_n900_legacy_init(void) 255 { 256 hsmmc2_internal_input_clk(); 257 258 if (omap_type() == OMAP2_DEVICE_TYPE_SEC) { 259 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { 260 pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); 261 /* set IBE to 1 */ 262 rx51_secure_update_aux_cr(BIT(6), 0); 263 } else { 264 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); 265 pr_warn("Thumb binaries may crash randomly without this workaround\n"); 266 } 267 268 pr_info("RX-51: Registring OMAP3 HWRNG device\n"); 269 platform_device_register(&omap3_rom_rng_device); 270 271 } 272 } 273 274 static void __init omap3_tao3530_legacy_init(void) 275 { 276 hsmmc2_internal_input_clk(); 277 } 278 279 /* omap3pandora legacy devices */ 280 #define PANDORA_WIFI_IRQ_GPIO 21 281 #define PANDORA_WIFI_NRESET_GPIO 23 282 283 static struct platform_device pandora_backlight = { 284 .name = "pandora-backlight", 285 .id = -1, 286 }; 287 288 static struct regulator_consumer_supply pandora_vmmc3_supply[] = { 289 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"), 290 }; 291 292 static struct regulator_init_data pandora_vmmc3 = { 293 .constraints = { 294 .valid_ops_mask = REGULATOR_CHANGE_STATUS, 295 }, 296 .num_consumer_supplies = ARRAY_SIZE(pandora_vmmc3_supply), 297 .consumer_supplies = pandora_vmmc3_supply, 298 }; 299 300 static struct fixed_voltage_config pandora_vwlan = { 301 .supply_name = "vwlan", 302 .microvolts = 1800000, /* 1.8V */ 303 .gpio = PANDORA_WIFI_NRESET_GPIO, 304 .startup_delay = 50000, /* 50ms */ 305 .enable_high = 1, 306 .init_data = &pandora_vmmc3, 307 }; 308 309 static struct platform_device pandora_vwlan_device = { 310 .name = "reg-fixed-voltage", 311 .id = 1, 312 .dev = { 313 .platform_data = &pandora_vwlan, 314 }, 315 }; 316 317 static void pandora_wl1251_init_card(struct mmc_card *card) 318 { 319 /* 320 * We have TI wl1251 attached to MMC3. Pass this information to 321 * SDIO core because it can't be probed by normal methods. 322 */ 323 if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) { 324 card->quirks |= MMC_QUIRK_NONSTD_SDIO; 325 card->cccr.wide_bus = 1; 326 card->cis.vendor = 0x104c; 327 card->cis.device = 0x9066; 328 card->cis.blksize = 512; 329 card->cis.max_dtr = 24000000; 330 card->ocr = 0x80; 331 } 332 } 333 334 static struct omap2_hsmmc_info pandora_mmc3[] = { 335 { 336 .mmc = 3, 337 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD, 338 .gpio_cd = -EINVAL, 339 .gpio_wp = -EINVAL, 340 .init_card = pandora_wl1251_init_card, 341 }, 342 {} /* Terminator */ 343 }; 344 345 static void __init pandora_wl1251_init(void) 346 { 347 struct wl1251_platform_data pandora_wl1251_pdata; 348 int ret; 349 350 memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata)); 351 352 pandora_wl1251_pdata.power_gpio = -1; 353 354 ret = gpio_request_one(PANDORA_WIFI_IRQ_GPIO, GPIOF_IN, "wl1251 irq"); 355 if (ret < 0) 356 goto fail; 357 358 pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO); 359 if (pandora_wl1251_pdata.irq < 0) 360 goto fail_irq; 361 362 pandora_wl1251_pdata.use_eeprom = true; 363 ret = wl1251_set_platform_data(&pandora_wl1251_pdata); 364 if (ret < 0) 365 goto fail_irq; 366 367 return; 368 369 fail_irq: 370 gpio_free(PANDORA_WIFI_IRQ_GPIO); 371 fail: 372 pr_err("wl1251 board initialisation failed\n"); 373 } 374 375 static void __init omap3_pandora_legacy_init(void) 376 { 377 platform_device_register(&pandora_backlight); 378 platform_device_register(&pandora_vwlan_device); 379 omap_hsmmc_init(pandora_mmc3); 380 omap_hsmmc_late_init(pandora_mmc3); 381 pandora_wl1251_init(); 382 } 383 #endif /* CONFIG_ARCH_OMAP3 */ 384 385 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 386 static struct iommu_platform_data omap4_iommu_pdata = { 387 .reset_name = "mmu_cache", 388 .assert_reset = omap_device_assert_hardreset, 389 .deassert_reset = omap_device_deassert_hardreset, 390 }; 391 #endif 392 393 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX) 394 static struct wkup_m3_platform_data wkup_m3_data = { 395 .reset_name = "wkup_m3", 396 .assert_reset = omap_device_assert_hardreset, 397 .deassert_reset = omap_device_deassert_hardreset, 398 }; 399 #endif 400 401 #ifdef CONFIG_SOC_OMAP5 402 static void __init omap5_uevm_legacy_init(void) 403 { 404 } 405 #endif 406 407 static struct pcs_pdata pcs_pdata; 408 409 void omap_pcs_legacy_init(int irq, void (*rearm)(void)) 410 { 411 pcs_pdata.irq = irq; 412 pcs_pdata.rearm = rearm; 413 } 414 415 /* 416 * GPIOs for TWL are initialized by the I2C bus and need custom 417 * handing until DSS has device tree bindings. 418 */ 419 void omap_auxdata_legacy_init(struct device *dev) 420 { 421 if (dev->platform_data) 422 return; 423 424 if (strcmp("twl4030-gpio", dev_name(dev))) 425 return; 426 427 dev->platform_data = &twl_gpio_auxdata; 428 } 429 430 /* 431 * Few boards still need auxdata populated before we populate 432 * the dev entries in of_platform_populate(). 433 */ 434 static struct pdata_init auxdata_quirks[] __initdata = { 435 #ifdef CONFIG_SOC_OMAP2420 436 { "nokia,n800", omap2420_n8x0_legacy_init, }, 437 { "nokia,n810", omap2420_n8x0_legacy_init, }, 438 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, 439 #endif 440 #ifdef CONFIG_ARCH_OMAP3 441 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, 442 #endif 443 { /* sentinel */ }, 444 }; 445 446 static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { 447 #ifdef CONFIG_MACH_NOKIA_N8X0 448 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), 449 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data), 450 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data), 451 #endif 452 #ifdef CONFIG_ARCH_OMAP3 453 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata), 454 OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata), 455 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata), 456 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu", 457 &omap3_iommu_pdata), 458 /* Only on am3517 */ 459 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), 460 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", 461 &am35xx_emac_pdata), 462 #endif 463 #ifdef CONFIG_SOC_AM33XX 464 OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3", 465 &wkup_m3_data), 466 #endif 467 #ifdef CONFIG_ARCH_OMAP4 468 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata), 469 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata), 470 #endif 471 #ifdef CONFIG_SOC_OMAP5 472 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata), 473 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata), 474 #endif 475 #ifdef CONFIG_SOC_DRA7XX 476 OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata), 477 #endif 478 #ifdef CONFIG_SOC_AM43XX 479 OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata), 480 OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3", 481 &wkup_m3_data), 482 #endif 483 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 484 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu", 485 &omap4_iommu_pdata), 486 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu", 487 &omap4_iommu_pdata), 488 #endif 489 { /* sentinel */ }, 490 }; 491 492 /* 493 * Few boards still need to initialize some legacy devices with 494 * platform data until the drivers support device tree. 495 */ 496 static struct pdata_init pdata_quirks[] __initdata = { 497 #ifdef CONFIG_ARCH_OMAP3 498 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, }, 499 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, 500 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, 501 { "nokia,omap3-n900", nokia_n900_legacy_init, }, 502 { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, 503 { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, 504 { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, }, 505 { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, }, 506 { "logicpd,dm3730-torpedo-devkit", omap3_gpio126_127_129, }, 507 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, 508 { "ti,am3517-evm", am3517_evm_legacy_init, }, 509 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, }, 510 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, }, 511 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, }, 512 #endif 513 #ifdef CONFIG_SOC_OMAP5 514 { "ti,omap5-uevm", omap5_uevm_legacy_init, }, 515 #endif 516 { /* sentinel */ }, 517 }; 518 519 static void pdata_quirks_check(struct pdata_init *quirks) 520 { 521 while (quirks->compatible) { 522 if (of_machine_is_compatible(quirks->compatible)) { 523 if (quirks->fn) 524 quirks->fn(); 525 break; 526 } 527 quirks++; 528 } 529 } 530 531 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) 532 { 533 /* 534 * We still need this for omap2420 and omap3 PM to work, others are 535 * using drivers/misc/sram.c already. 536 */ 537 if (of_machine_is_compatible("ti,omap2420") || 538 of_machine_is_compatible("ti,omap3")) 539 omap_sdrc_init(NULL, NULL); 540 541 pdata_quirks_check(auxdata_quirks); 542 of_platform_populate(NULL, omap_dt_match_table, 543 omap_auxdata_lookup, NULL); 544 pdata_quirks_check(pdata_quirks); 545 } 546