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/consumer.h> 10 #include <linux/gpio.h> 11 #include <linux/init.h> 12 #include <linux/kernel.h> 13 #include <linux/of_platform.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 #include <linux/platform_data/ti-prm.h> 27 28 #include "clockdomain.h" 29 #include "common.h" 30 #include "common-board-devices.h" 31 #include "control.h" 32 #include "omap_device.h" 33 #include "omap-secure.h" 34 #include "soc.h" 35 36 static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2]; 37 38 struct pdata_init { 39 const char *compatible; 40 void (*fn)(void); 41 }; 42 43 static struct of_dev_auxdata omap_auxdata_lookup[]; 44 static struct twl4030_gpio_platform_data twl_gpio_auxdata; 45 46 #ifdef CONFIG_MACH_NOKIA_N8X0 47 static void __init omap2420_n8x0_legacy_init(void) 48 { 49 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); 50 } 51 #else 52 #define omap2420_n8x0_legacy_init NULL 53 #endif 54 55 #ifdef CONFIG_ARCH_OMAP3 56 /* 57 * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V 58 * mode for MMC1 in case bootloader did not configure things. 59 * Note that if the pins are used for MMC1, pbias-regulator 60 * manages the IO voltage. 61 */ 62 static void __init omap3_gpio126_127_129(void) 63 { 64 u32 reg; 65 66 reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); 67 reg &= ~OMAP343X_PBIASLITEVMODE1; 68 reg |= OMAP343X_PBIASLITEPWRDNZ1; 69 omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE); 70 if (cpu_is_omap3630()) { 71 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL); 72 reg |= OMAP36XX_GPIO_IO_PWRDNZ; 73 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL); 74 } 75 } 76 77 static void __init hsmmc2_internal_input_clk(void) 78 { 79 u32 reg; 80 81 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); 82 reg |= OMAP2_MMCSDIO2ADPCLKISEL; 83 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); 84 } 85 86 #ifdef CONFIG_OMAP_HWMOD 87 static struct iommu_platform_data omap3_iommu_pdata = { 88 .reset_name = "mmu", 89 .assert_reset = omap_device_assert_hardreset, 90 .deassert_reset = omap_device_deassert_hardreset, 91 .device_enable = omap_device_enable, 92 .device_idle = omap_device_idle, 93 }; 94 95 static struct iommu_platform_data omap3_iommu_isp_pdata = { 96 .device_enable = omap_device_enable, 97 .device_idle = omap_device_idle, 98 }; 99 #endif 100 101 static int omap3_sbc_t3730_twl_callback(struct device *dev, 102 unsigned gpio, 103 unsigned ngpio) 104 { 105 int res; 106 107 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, 108 "wlan pwr"); 109 if (res) 110 return res; 111 112 gpiod_export(gpio_to_desc(gpio), 0); 113 114 return 0; 115 } 116 117 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name) 118 { 119 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name); 120 121 if (err) { 122 pr_err("SBC-T3x: %s reset gpio request failed: %d\n", 123 hub_name, err); 124 return; 125 } 126 127 gpiod_export(gpio_to_desc(gpio), 0); 128 129 udelay(10); 130 gpio_set_value(gpio, 1); 131 msleep(1); 132 } 133 134 static void __init omap3_sbc_t3730_twl_init(void) 135 { 136 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback; 137 } 138 139 static void __init omap3_sbc_t3730_legacy_init(void) 140 { 141 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 142 } 143 144 static void __init omap3_sbc_t3530_legacy_init(void) 145 { 146 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 147 } 148 149 static void __init omap3_evm_legacy_init(void) 150 { 151 hsmmc2_internal_input_clk(); 152 } 153 154 static void am35xx_enable_emac_int(void) 155 { 156 u32 v; 157 158 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 159 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | 160 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); 161 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 162 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 163 } 164 165 static void am35xx_disable_emac_int(void) 166 { 167 u32 v; 168 169 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 170 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); 171 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 172 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 173 } 174 175 static struct emac_platform_data am35xx_emac_pdata = { 176 .interrupt_enable = am35xx_enable_emac_int, 177 .interrupt_disable = am35xx_disable_emac_int, 178 }; 179 180 static void __init am35xx_emac_reset(void) 181 { 182 u32 v; 183 184 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); 185 v &= ~AM35XX_CPGMACSS_SW_RST; 186 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); 187 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ 188 } 189 190 static struct gpio cm_t3517_wlan_gpios[] __initdata = { 191 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" }, 192 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" }, 193 }; 194 195 static void __init omap3_sbc_t3517_wifi_init(void) 196 { 197 int err = gpio_request_array(cm_t3517_wlan_gpios, 198 ARRAY_SIZE(cm_t3517_wlan_gpios)); 199 if (err) { 200 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err); 201 return; 202 } 203 204 gpiod_export(gpio_to_desc(cm_t3517_wlan_gpios[0].gpio), 0); 205 gpiod_export(gpio_to_desc(cm_t3517_wlan_gpios[1].gpio), 0); 206 207 msleep(100); 208 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0); 209 } 210 211 static void __init omap3_sbc_t3517_legacy_init(void) 212 { 213 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub"); 214 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub"); 215 am35xx_emac_reset(); 216 hsmmc2_internal_input_clk(); 217 omap3_sbc_t3517_wifi_init(); 218 } 219 220 static void __init am3517_evm_legacy_init(void) 221 { 222 am35xx_emac_reset(); 223 } 224 225 static void __init nokia_n900_legacy_init(void) 226 { 227 hsmmc2_internal_input_clk(); 228 mmc_pdata[0].name = "external"; 229 mmc_pdata[1].name = "internal"; 230 231 if (omap_type() != OMAP2_DEVICE_TYPE_GP) { 232 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { 233 pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); 234 /* set IBE to 1 */ 235 rx51_secure_update_aux_cr(BIT(6), 0); 236 } else { 237 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); 238 pr_warn("Thumb binaries may crash randomly without this workaround\n"); 239 } 240 } 241 } 242 243 static void __init omap3_tao3530_legacy_init(void) 244 { 245 hsmmc2_internal_input_clk(); 246 } 247 248 static void __init omap3_logicpd_torpedo_init(void) 249 { 250 omap3_gpio126_127_129(); 251 } 252 253 /* omap3pandora legacy devices */ 254 255 static struct platform_device pandora_backlight = { 256 .name = "pandora-backlight", 257 .id = -1, 258 }; 259 260 static void __init omap3_pandora_legacy_init(void) 261 { 262 platform_device_register(&pandora_backlight); 263 } 264 #endif /* CONFIG_ARCH_OMAP3 */ 265 266 #ifdef CONFIG_SOC_DRA7XX 267 static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = { 268 .set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint, 269 }; 270 #endif 271 272 static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk) 273 { 274 struct clk_hw *hw = __clk_get_hw(clk); 275 struct clockdomain *clkdm = NULL; 276 struct clk_hw_omap *hwclk; 277 278 hwclk = to_clk_hw_omap(hw); 279 if (!omap2_clk_is_hw_omap(hw)) 280 return NULL; 281 282 if (hwclk && hwclk->clkdm_name) 283 clkdm = clkdm_lookup(hwclk->clkdm_name); 284 285 return clkdm; 286 } 287 288 /** 289 * ti_sysc_clkdm_init - find clockdomain based on clock 290 * @fck: device functional clock 291 * @ick: device interface clock 292 * @dev: struct device 293 * 294 * Populate clockdomain based on clock. It is needed for 295 * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain 296 * clockdomain idle during reset, enable and idle. 297 * 298 * Note that we assume interconnect driver manages the clocks 299 * and do not need to populate oh->_clk for dynamically 300 * allocated modules. 301 */ 302 static int ti_sysc_clkdm_init(struct device *dev, 303 struct clk *fck, struct clk *ick, 304 struct ti_sysc_cookie *cookie) 305 { 306 if (!IS_ERR(fck)) 307 cookie->clkdm = ti_sysc_find_one_clockdomain(fck); 308 if (cookie->clkdm) 309 return 0; 310 if (!IS_ERR(ick)) 311 cookie->clkdm = ti_sysc_find_one_clockdomain(ick); 312 if (cookie->clkdm) 313 return 0; 314 315 return -ENODEV; 316 } 317 318 static void ti_sysc_clkdm_deny_idle(struct device *dev, 319 const struct ti_sysc_cookie *cookie) 320 { 321 if (cookie->clkdm) 322 clkdm_deny_idle(cookie->clkdm); 323 } 324 325 static void ti_sysc_clkdm_allow_idle(struct device *dev, 326 const struct ti_sysc_cookie *cookie) 327 { 328 if (cookie->clkdm) 329 clkdm_allow_idle(cookie->clkdm); 330 } 331 332 #ifdef CONFIG_OMAP_HWMOD 333 static int ti_sysc_enable_module(struct device *dev, 334 const struct ti_sysc_cookie *cookie) 335 { 336 if (!cookie->data) 337 return -EINVAL; 338 339 return omap_hwmod_enable(cookie->data); 340 } 341 342 static int ti_sysc_idle_module(struct device *dev, 343 const struct ti_sysc_cookie *cookie) 344 { 345 if (!cookie->data) 346 return -EINVAL; 347 348 return omap_hwmod_idle(cookie->data); 349 } 350 351 static int ti_sysc_shutdown_module(struct device *dev, 352 const struct ti_sysc_cookie *cookie) 353 { 354 if (!cookie->data) 355 return -EINVAL; 356 357 return omap_hwmod_shutdown(cookie->data); 358 } 359 #endif /* CONFIG_OMAP_HWMOD */ 360 361 static bool ti_sysc_soc_type_gp(void) 362 { 363 return omap_type() == OMAP2_DEVICE_TYPE_GP; 364 } 365 366 static struct of_dev_auxdata omap_auxdata_lookup[]; 367 368 static struct ti_sysc_platform_data ti_sysc_pdata = { 369 .auxdata = omap_auxdata_lookup, 370 .soc_type_gp = ti_sysc_soc_type_gp, 371 .init_clockdomain = ti_sysc_clkdm_init, 372 .clkdm_deny_idle = ti_sysc_clkdm_deny_idle, 373 .clkdm_allow_idle = ti_sysc_clkdm_allow_idle, 374 #ifdef CONFIG_OMAP_HWMOD 375 .init_module = omap_hwmod_init_module, 376 .enable_module = ti_sysc_enable_module, 377 .idle_module = ti_sysc_idle_module, 378 .shutdown_module = ti_sysc_shutdown_module, 379 #endif 380 }; 381 382 static struct pcs_pdata pcs_pdata; 383 384 void omap_pcs_legacy_init(int irq, void (*rearm)(void)) 385 { 386 pcs_pdata.irq = irq; 387 pcs_pdata.rearm = rearm; 388 } 389 390 static struct ti_prm_platform_data ti_prm_pdata = { 391 .clkdm_deny_idle = clkdm_deny_idle, 392 .clkdm_allow_idle = clkdm_allow_idle, 393 .clkdm_lookup = clkdm_lookup, 394 }; 395 396 /* 397 * GPIOs for TWL are initialized by the I2C bus and need custom 398 * handing until DSS has device tree bindings. 399 */ 400 void omap_auxdata_legacy_init(struct device *dev) 401 { 402 if (dev->platform_data) 403 return; 404 405 if (strcmp("twl4030-gpio", dev_name(dev))) 406 return; 407 408 dev->platform_data = &twl_gpio_auxdata; 409 } 410 411 #if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) 412 static struct omap_mcbsp_platform_data mcbsp_pdata; 413 static void __init omap3_mcbsp_init(void) 414 { 415 omap3_mcbsp_init_pdata_callback(&mcbsp_pdata); 416 } 417 #else 418 static void __init omap3_mcbsp_init(void) {} 419 #endif 420 421 /* 422 * Few boards still need auxdata populated before we populate 423 * the dev entries in of_platform_populate(). 424 */ 425 static struct pdata_init auxdata_quirks[] __initdata = { 426 #ifdef CONFIG_SOC_OMAP2420 427 { "nokia,n800", omap2420_n8x0_legacy_init, }, 428 { "nokia,n810", omap2420_n8x0_legacy_init, }, 429 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, 430 #endif 431 #ifdef CONFIG_ARCH_OMAP3 432 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, 433 #endif 434 { /* sentinel */ }, 435 }; 436 437 struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR]; 438 439 static struct of_dev_auxdata omap_auxdata_lookup[] = { 440 #ifdef CONFIG_MACH_NOKIA_N8X0 441 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), 442 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data), 443 #endif 444 #ifdef CONFIG_ARCH_OMAP3 445 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu", 446 &omap3_iommu_pdata), 447 OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu", 448 &omap3_iommu_isp_pdata), 449 OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000, 450 "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), 451 OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000, 452 "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), 453 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]), 454 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]), 455 /* Only on am3517 */ 456 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), 457 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", 458 &am35xx_emac_pdata), 459 OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call), 460 /* McBSP modules with sidetone core */ 461 #if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) 462 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata), 463 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata), 464 #endif 465 #endif 466 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 467 OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000, 468 "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]), 469 OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000, 470 "4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), 471 OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000, 472 "4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), 473 #endif 474 #ifdef CONFIG_SOC_DRA7XX 475 OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x40d01000, "40d01000.mmu", 476 &dra7_ipu1_dsp_iommu_pdata), 477 OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x41501000, "41501000.mmu", 478 &dra7_ipu1_dsp_iommu_pdata), 479 OF_DEV_AUXDATA("ti,dra7-iommu", 0x58882000, "58882000.mmu", 480 &dra7_ipu1_dsp_iommu_pdata), 481 #endif 482 /* Common auxdata */ 483 OF_DEV_AUXDATA("simple-pm-bus", 0, NULL, omap_auxdata_lookup), 484 OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata), 485 OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata), 486 OF_DEV_AUXDATA("ti,omap-prm-inst", 0, NULL, &ti_prm_pdata), 487 OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info), 488 { /* sentinel */ }, 489 }; 490 491 /* 492 * Few boards still need to initialize some legacy devices with 493 * platform data until the drivers support device tree. 494 */ 495 static struct pdata_init pdata_quirks[] __initdata = { 496 #ifdef CONFIG_ARCH_OMAP3 497 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, }, 498 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, 499 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, 500 { "nokia,omap3-n900", nokia_n900_legacy_init, }, 501 { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, 502 { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, 503 { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, }, 504 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, 505 { "ti,am3517-evm", am3517_evm_legacy_init, }, 506 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, }, 507 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, }, 508 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, }, 509 #endif 510 { /* sentinel */ }, 511 }; 512 513 static void pdata_quirks_check(struct pdata_init *quirks) 514 { 515 while (quirks->compatible) { 516 if (of_machine_is_compatible(quirks->compatible)) { 517 if (quirks->fn) 518 quirks->fn(); 519 } 520 quirks++; 521 } 522 } 523 524 static const char * const pdata_quirks_init_nodes[] = { 525 "prcm", 526 "prm", 527 }; 528 529 static void __init 530 pdata_quirks_init_clocks(const struct of_device_id *omap_dt_match_table) 531 { 532 struct device_node *np; 533 int i; 534 535 for (i = 0; i < ARRAY_SIZE(pdata_quirks_init_nodes); i++) { 536 np = of_find_node_by_name(NULL, pdata_quirks_init_nodes[i]); 537 if (!np) 538 continue; 539 540 of_platform_populate(np, omap_dt_match_table, 541 omap_auxdata_lookup, NULL); 542 543 of_node_put(np); 544 } 545 } 546 547 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) 548 { 549 /* 550 * We still need this for omap2420 and omap3 PM to work, others are 551 * using drivers/misc/sram.c already. 552 */ 553 if (of_machine_is_compatible("ti,omap2420") || 554 of_machine_is_compatible("ti,omap3")) 555 omap_sdrc_init(NULL, NULL); 556 557 if (of_machine_is_compatible("ti,omap3")) 558 omap3_mcbsp_init(); 559 pdata_quirks_check(auxdata_quirks); 560 561 pdata_quirks_init_clocks(omap_dt_match_table); 562 563 of_platform_populate(NULL, omap_dt_match_table, 564 omap_auxdata_lookup, NULL); 565 pdata_quirks_check(pdata_quirks); 566 } 567