1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Legacy platform_data quirks 4 * 5 * Copyright (C) 2013 Texas Instruments 6 */ 7 #include <linux/clk.h> 8 #include <linux/davinci_emac.h> 9 #include <linux/gpio.h> 10 #include <linux/init.h> 11 #include <linux/kernel.h> 12 #include <linux/of_platform.h> 13 #include <linux/wl12xx.h> 14 #include <linux/mmc/card.h> 15 #include <linux/mmc/host.h> 16 #include <linux/power/smartreflex.h> 17 #include <linux/regulator/machine.h> 18 #include <linux/regulator/fixed.h> 19 20 #include <linux/platform_data/pinctrl-single.h> 21 #include <linux/platform_data/hsmmc-omap.h> 22 #include <linux/platform_data/iommu-omap.h> 23 #include <linux/platform_data/ti-sysc.h> 24 #include <linux/platform_data/wkup_m3.h> 25 #include <linux/platform_data/asoc-ti-mcbsp.h> 26 27 #include "clockdomain.h" 28 #include "common.h" 29 #include "common-board-devices.h" 30 #include "control.h" 31 #include "omap_device.h" 32 #include "omap-secure.h" 33 #include "soc.h" 34 35 static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2]; 36 37 struct pdata_init { 38 const char *compatible; 39 void (*fn)(void); 40 }; 41 42 static struct of_dev_auxdata omap_auxdata_lookup[]; 43 static struct twl4030_gpio_platform_data twl_gpio_auxdata; 44 45 #ifdef CONFIG_MACH_NOKIA_N8X0 46 static void __init omap2420_n8x0_legacy_init(void) 47 { 48 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); 49 } 50 #else 51 #define omap2420_n8x0_legacy_init NULL 52 #endif 53 54 #ifdef CONFIG_ARCH_OMAP3 55 /* 56 * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V 57 * mode for MMC1 in case bootloader did not configure things. 58 * Note that if the pins are used for MMC1, pbias-regulator 59 * manages the IO voltage. 60 */ 61 static void __init omap3_gpio126_127_129(void) 62 { 63 u32 reg; 64 65 reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); 66 reg &= ~OMAP343X_PBIASLITEVMODE1; 67 reg |= OMAP343X_PBIASLITEPWRDNZ1; 68 omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE); 69 if (cpu_is_omap3630()) { 70 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL); 71 reg |= OMAP36XX_GPIO_IO_PWRDNZ; 72 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL); 73 } 74 } 75 76 static void __init hsmmc2_internal_input_clk(void) 77 { 78 u32 reg; 79 80 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); 81 reg |= OMAP2_MMCSDIO2ADPCLKISEL; 82 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); 83 } 84 85 static struct iommu_platform_data omap3_iommu_pdata = { 86 .reset_name = "mmu", 87 .assert_reset = omap_device_assert_hardreset, 88 .deassert_reset = omap_device_deassert_hardreset, 89 .device_enable = omap_device_enable, 90 .device_idle = omap_device_idle, 91 }; 92 93 static struct iommu_platform_data omap3_iommu_isp_pdata = { 94 .device_enable = omap_device_enable, 95 .device_idle = omap_device_idle, 96 }; 97 98 static int omap3_sbc_t3730_twl_callback(struct device *dev, 99 unsigned gpio, 100 unsigned ngpio) 101 { 102 int res; 103 104 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, 105 "wlan pwr"); 106 if (res) 107 return res; 108 109 gpio_export(gpio, 0); 110 111 return 0; 112 } 113 114 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name) 115 { 116 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name); 117 118 if (err) { 119 pr_err("SBC-T3x: %s reset gpio request failed: %d\n", 120 hub_name, err); 121 return; 122 } 123 124 gpio_export(gpio, 0); 125 126 udelay(10); 127 gpio_set_value(gpio, 1); 128 msleep(1); 129 } 130 131 static void __init omap3_sbc_t3730_twl_init(void) 132 { 133 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback; 134 } 135 136 static void __init omap3_sbc_t3730_legacy_init(void) 137 { 138 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 139 } 140 141 static void __init omap3_sbc_t3530_legacy_init(void) 142 { 143 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 144 } 145 146 static void __init omap3_evm_legacy_init(void) 147 { 148 hsmmc2_internal_input_clk(); 149 } 150 151 static void am35xx_enable_emac_int(void) 152 { 153 u32 v; 154 155 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 156 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | 157 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); 158 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 159 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 160 } 161 162 static void am35xx_disable_emac_int(void) 163 { 164 u32 v; 165 166 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 167 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); 168 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 169 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 170 } 171 172 static struct emac_platform_data am35xx_emac_pdata = { 173 .interrupt_enable = am35xx_enable_emac_int, 174 .interrupt_disable = am35xx_disable_emac_int, 175 }; 176 177 static void __init am35xx_emac_reset(void) 178 { 179 u32 v; 180 181 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); 182 v &= ~AM35XX_CPGMACSS_SW_RST; 183 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); 184 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ 185 } 186 187 static struct gpio cm_t3517_wlan_gpios[] __initdata = { 188 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" }, 189 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" }, 190 }; 191 192 static void __init omap3_sbc_t3517_wifi_init(void) 193 { 194 int err = gpio_request_array(cm_t3517_wlan_gpios, 195 ARRAY_SIZE(cm_t3517_wlan_gpios)); 196 if (err) { 197 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err); 198 return; 199 } 200 201 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0); 202 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0); 203 204 msleep(100); 205 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0); 206 } 207 208 static void __init omap3_sbc_t3517_legacy_init(void) 209 { 210 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub"); 211 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub"); 212 am35xx_emac_reset(); 213 hsmmc2_internal_input_clk(); 214 omap3_sbc_t3517_wifi_init(); 215 } 216 217 static void __init am3517_evm_legacy_init(void) 218 { 219 am35xx_emac_reset(); 220 } 221 222 static void __init nokia_n900_legacy_init(void) 223 { 224 hsmmc2_internal_input_clk(); 225 mmc_pdata[0].name = "external"; 226 mmc_pdata[1].name = "internal"; 227 228 if (omap_type() != OMAP2_DEVICE_TYPE_GP) { 229 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { 230 pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); 231 /* set IBE to 1 */ 232 rx51_secure_update_aux_cr(BIT(6), 0); 233 } else { 234 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); 235 pr_warn("Thumb binaries may crash randomly without this workaround\n"); 236 } 237 } 238 } 239 240 static void __init omap3_tao3530_legacy_init(void) 241 { 242 hsmmc2_internal_input_clk(); 243 } 244 245 static void __init omap3_logicpd_torpedo_init(void) 246 { 247 omap3_gpio126_127_129(); 248 } 249 250 /* omap3pandora legacy devices */ 251 252 static struct platform_device pandora_backlight = { 253 .name = "pandora-backlight", 254 .id = -1, 255 }; 256 257 static void __init omap3_pandora_legacy_init(void) 258 { 259 platform_device_register(&pandora_backlight); 260 } 261 #endif /* CONFIG_ARCH_OMAP3 */ 262 263 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 264 static struct iommu_platform_data omap4_iommu_pdata = { 265 .reset_name = "mmu_cache", 266 .assert_reset = omap_device_assert_hardreset, 267 .deassert_reset = omap_device_deassert_hardreset, 268 .device_enable = omap_device_enable, 269 .device_idle = omap_device_idle, 270 }; 271 #endif 272 273 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX) 274 static struct wkup_m3_platform_data wkup_m3_data = { 275 .reset_name = "wkup_m3", 276 .assert_reset = omap_device_assert_hardreset, 277 .deassert_reset = omap_device_deassert_hardreset, 278 }; 279 #endif 280 281 #ifdef CONFIG_SOC_OMAP5 282 static void __init omap5_uevm_legacy_init(void) 283 { 284 } 285 #endif 286 287 #ifdef CONFIG_SOC_DRA7XX 288 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc1; 289 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc2; 290 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc3; 291 292 static void __init dra7x_evm_mmc_quirk(void) 293 { 294 if (omap_rev() == DRA752_REV_ES1_1 || omap_rev() == DRA752_REV_ES1_0) { 295 dra7_hsmmc_data_mmc1.version = "rev11"; 296 dra7_hsmmc_data_mmc1.max_freq = 96000000; 297 298 dra7_hsmmc_data_mmc2.version = "rev11"; 299 dra7_hsmmc_data_mmc2.max_freq = 48000000; 300 301 dra7_hsmmc_data_mmc3.version = "rev11"; 302 dra7_hsmmc_data_mmc3.max_freq = 48000000; 303 } 304 } 305 #endif 306 307 static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk) 308 { 309 struct clockdomain *clkdm = NULL; 310 struct clk_hw_omap *hwclk; 311 312 hwclk = to_clk_hw_omap(__clk_get_hw(clk)); 313 if (hwclk && hwclk->clkdm_name) 314 clkdm = clkdm_lookup(hwclk->clkdm_name); 315 316 return clkdm; 317 } 318 319 /** 320 * ti_sysc_clkdm_init - find clockdomain based on clock 321 * @fck: device functional clock 322 * @ick: device interface clock 323 * @dev: struct device 324 * 325 * Populate clockdomain based on clock. It is needed for 326 * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain 327 * clockdomain idle during reset, enable and idle. 328 * 329 * Note that we assume interconnect driver manages the clocks 330 * and do not need to populate oh->_clk for dynamically 331 * allocated modules. 332 */ 333 static int ti_sysc_clkdm_init(struct device *dev, 334 struct clk *fck, struct clk *ick, 335 struct ti_sysc_cookie *cookie) 336 { 337 if (!IS_ERR(fck)) 338 cookie->clkdm = ti_sysc_find_one_clockdomain(fck); 339 if (cookie->clkdm) 340 return 0; 341 if (!IS_ERR(ick)) 342 cookie->clkdm = ti_sysc_find_one_clockdomain(ick); 343 if (cookie->clkdm) 344 return 0; 345 346 return -ENODEV; 347 } 348 349 static void ti_sysc_clkdm_deny_idle(struct device *dev, 350 const struct ti_sysc_cookie *cookie) 351 { 352 if (cookie->clkdm) 353 clkdm_deny_idle(cookie->clkdm); 354 } 355 356 static void ti_sysc_clkdm_allow_idle(struct device *dev, 357 const struct ti_sysc_cookie *cookie) 358 { 359 if (cookie->clkdm) 360 clkdm_allow_idle(cookie->clkdm); 361 } 362 363 static int ti_sysc_enable_module(struct device *dev, 364 const struct ti_sysc_cookie *cookie) 365 { 366 if (!cookie->data) 367 return -EINVAL; 368 369 return omap_hwmod_enable(cookie->data); 370 } 371 372 static int ti_sysc_idle_module(struct device *dev, 373 const struct ti_sysc_cookie *cookie) 374 { 375 if (!cookie->data) 376 return -EINVAL; 377 378 return omap_hwmod_idle(cookie->data); 379 } 380 381 static int ti_sysc_shutdown_module(struct device *dev, 382 const struct ti_sysc_cookie *cookie) 383 { 384 if (!cookie->data) 385 return -EINVAL; 386 387 return omap_hwmod_shutdown(cookie->data); 388 } 389 390 static struct of_dev_auxdata omap_auxdata_lookup[]; 391 392 static struct ti_sysc_platform_data ti_sysc_pdata = { 393 .auxdata = omap_auxdata_lookup, 394 .init_clockdomain = ti_sysc_clkdm_init, 395 .clkdm_deny_idle = ti_sysc_clkdm_deny_idle, 396 .clkdm_allow_idle = ti_sysc_clkdm_allow_idle, 397 .init_module = omap_hwmod_init_module, 398 .enable_module = ti_sysc_enable_module, 399 .idle_module = ti_sysc_idle_module, 400 .shutdown_module = ti_sysc_shutdown_module, 401 }; 402 403 static struct pcs_pdata pcs_pdata; 404 405 void omap_pcs_legacy_init(int irq, void (*rearm)(void)) 406 { 407 pcs_pdata.irq = irq; 408 pcs_pdata.rearm = rearm; 409 } 410 411 /* 412 * GPIOs for TWL are initialized by the I2C bus and need custom 413 * handing until DSS has device tree bindings. 414 */ 415 void omap_auxdata_legacy_init(struct device *dev) 416 { 417 if (dev->platform_data) 418 return; 419 420 if (strcmp("twl4030-gpio", dev_name(dev))) 421 return; 422 423 dev->platform_data = &twl_gpio_auxdata; 424 } 425 426 #if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) 427 static struct omap_mcbsp_platform_data mcbsp_pdata; 428 static void __init omap3_mcbsp_init(void) 429 { 430 omap3_mcbsp_init_pdata_callback(&mcbsp_pdata); 431 } 432 #else 433 static void __init omap3_mcbsp_init(void) {} 434 #endif 435 436 /* 437 * Few boards still need auxdata populated before we populate 438 * the dev entries in of_platform_populate(). 439 */ 440 static struct pdata_init auxdata_quirks[] __initdata = { 441 #ifdef CONFIG_SOC_OMAP2420 442 { "nokia,n800", omap2420_n8x0_legacy_init, }, 443 { "nokia,n810", omap2420_n8x0_legacy_init, }, 444 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, 445 #endif 446 #ifdef CONFIG_ARCH_OMAP3 447 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, 448 #endif 449 { /* sentinel */ }, 450 }; 451 452 struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR]; 453 454 static struct of_dev_auxdata omap_auxdata_lookup[] = { 455 #ifdef CONFIG_MACH_NOKIA_N8X0 456 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), 457 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data), 458 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data), 459 #endif 460 #ifdef CONFIG_ARCH_OMAP3 461 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu", 462 &omap3_iommu_pdata), 463 OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu", 464 &omap3_iommu_isp_pdata), 465 OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000, 466 "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), 467 OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000, 468 "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), 469 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]), 470 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]), 471 /* Only on am3517 */ 472 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), 473 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", 474 &am35xx_emac_pdata), 475 OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call), 476 /* McBSP modules with sidetone core */ 477 #if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) 478 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata), 479 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata), 480 #endif 481 #endif 482 #ifdef CONFIG_SOC_AM33XX 483 OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3", 484 &wkup_m3_data), 485 #endif 486 #ifdef CONFIG_SOC_AM43XX 487 OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3", 488 &wkup_m3_data), 489 #endif 490 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 491 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu", 492 &omap4_iommu_pdata), 493 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu", 494 &omap4_iommu_pdata), 495 OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000, 496 "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]), 497 OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000, 498 "4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), 499 OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000, 500 "4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), 501 #endif 502 #ifdef CONFIG_SOC_DRA7XX 503 OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x4809c000, "4809c000.mmc", 504 &dra7_hsmmc_data_mmc1), 505 OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480b4000, "480b4000.mmc", 506 &dra7_hsmmc_data_mmc2), 507 OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480ad000, "480ad000.mmc", 508 &dra7_hsmmc_data_mmc3), 509 #endif 510 /* Common auxdata */ 511 OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata), 512 OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata), 513 { /* sentinel */ }, 514 }; 515 516 /* 517 * Few boards still need to initialize some legacy devices with 518 * platform data until the drivers support device tree. 519 */ 520 static struct pdata_init pdata_quirks[] __initdata = { 521 #ifdef CONFIG_ARCH_OMAP3 522 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, }, 523 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, 524 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, 525 { "nokia,omap3-n900", nokia_n900_legacy_init, }, 526 { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, 527 { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, 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 #ifdef CONFIG_SOC_DRA7XX 539 { "ti,dra7-evm", dra7x_evm_mmc_quirk, }, 540 #endif 541 { /* sentinel */ }, 542 }; 543 544 static void pdata_quirks_check(struct pdata_init *quirks) 545 { 546 while (quirks->compatible) { 547 if (of_machine_is_compatible(quirks->compatible)) { 548 if (quirks->fn) 549 quirks->fn(); 550 } 551 quirks++; 552 } 553 } 554 555 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) 556 { 557 /* 558 * We still need this for omap2420 and omap3 PM to work, others are 559 * using drivers/misc/sram.c already. 560 */ 561 if (of_machine_is_compatible("ti,omap2420") || 562 of_machine_is_compatible("ti,omap3")) 563 omap_sdrc_init(NULL, NULL); 564 565 if (of_machine_is_compatible("ti,omap3")) 566 omap3_mcbsp_init(); 567 pdata_quirks_check(auxdata_quirks); 568 of_platform_populate(NULL, omap_dt_match_table, 569 omap_auxdata_lookup, NULL); 570 pdata_quirks_check(pdata_quirks); 571 } 572