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/mmc/card.h> 14 #include <linux/mmc/host.h> 15 #include <linux/power/smartreflex.h> 16 #include <linux/regulator/machine.h> 17 #include <linux/regulator/fixed.h> 18 19 #include <linux/platform_data/pinctrl-single.h> 20 #include <linux/platform_data/hsmmc-omap.h> 21 #include <linux/platform_data/iommu-omap.h> 22 #include <linux/platform_data/ti-sysc.h> 23 #include <linux/platform_data/wkup_m3.h> 24 #include <linux/platform_data/asoc-ti-mcbsp.h> 25 #include <linux/platform_data/ti-prm.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 #ifdef CONFIG_OMAP_HWMOD 86 static struct iommu_platform_data omap3_iommu_pdata = { 87 .reset_name = "mmu", 88 .assert_reset = omap_device_assert_hardreset, 89 .deassert_reset = omap_device_deassert_hardreset, 90 .device_enable = omap_device_enable, 91 .device_idle = omap_device_idle, 92 }; 93 94 static struct iommu_platform_data omap3_iommu_isp_pdata = { 95 .device_enable = omap_device_enable, 96 .device_idle = omap_device_idle, 97 }; 98 #endif 99 100 static int omap3_sbc_t3730_twl_callback(struct device *dev, 101 unsigned gpio, 102 unsigned ngpio) 103 { 104 int res; 105 106 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, 107 "wlan pwr"); 108 if (res) 109 return res; 110 111 gpio_export(gpio, 0); 112 113 return 0; 114 } 115 116 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name) 117 { 118 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name); 119 120 if (err) { 121 pr_err("SBC-T3x: %s reset gpio request failed: %d\n", 122 hub_name, err); 123 return; 124 } 125 126 gpio_export(gpio, 0); 127 128 udelay(10); 129 gpio_set_value(gpio, 1); 130 msleep(1); 131 } 132 133 static void __init omap3_sbc_t3730_twl_init(void) 134 { 135 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback; 136 } 137 138 static void __init omap3_sbc_t3730_legacy_init(void) 139 { 140 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 141 } 142 143 static void __init omap3_sbc_t3530_legacy_init(void) 144 { 145 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub"); 146 } 147 148 static void __init omap3_evm_legacy_init(void) 149 { 150 hsmmc2_internal_input_clk(); 151 } 152 153 static void am35xx_enable_emac_int(void) 154 { 155 u32 v; 156 157 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 158 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | 159 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); 160 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 161 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 162 } 163 164 static void am35xx_disable_emac_int(void) 165 { 166 u32 v; 167 168 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); 169 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); 170 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); 171 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ 172 } 173 174 static struct emac_platform_data am35xx_emac_pdata = { 175 .interrupt_enable = am35xx_enable_emac_int, 176 .interrupt_disable = am35xx_disable_emac_int, 177 }; 178 179 static void __init am35xx_emac_reset(void) 180 { 181 u32 v; 182 183 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); 184 v &= ~AM35XX_CPGMACSS_SW_RST; 185 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); 186 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ 187 } 188 189 static struct gpio cm_t3517_wlan_gpios[] __initdata = { 190 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" }, 191 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" }, 192 }; 193 194 static void __init omap3_sbc_t3517_wifi_init(void) 195 { 196 int err = gpio_request_array(cm_t3517_wlan_gpios, 197 ARRAY_SIZE(cm_t3517_wlan_gpios)); 198 if (err) { 199 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err); 200 return; 201 } 202 203 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0); 204 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0); 205 206 msleep(100); 207 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0); 208 } 209 210 static void __init omap3_sbc_t3517_legacy_init(void) 211 { 212 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub"); 213 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub"); 214 am35xx_emac_reset(); 215 hsmmc2_internal_input_clk(); 216 omap3_sbc_t3517_wifi_init(); 217 } 218 219 static void __init am3517_evm_legacy_init(void) 220 { 221 am35xx_emac_reset(); 222 } 223 224 static void __init nokia_n900_legacy_init(void) 225 { 226 hsmmc2_internal_input_clk(); 227 mmc_pdata[0].name = "external"; 228 mmc_pdata[1].name = "internal"; 229 230 if (omap_type() != OMAP2_DEVICE_TYPE_GP) { 231 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { 232 pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); 233 /* set IBE to 1 */ 234 rx51_secure_update_aux_cr(BIT(6), 0); 235 } else { 236 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); 237 pr_warn("Thumb binaries may crash randomly without this workaround\n"); 238 } 239 } 240 } 241 242 static void __init omap3_tao3530_legacy_init(void) 243 { 244 hsmmc2_internal_input_clk(); 245 } 246 247 static void __init omap3_logicpd_torpedo_init(void) 248 { 249 omap3_gpio126_127_129(); 250 } 251 252 /* omap3pandora legacy devices */ 253 254 static struct platform_device pandora_backlight = { 255 .name = "pandora-backlight", 256 .id = -1, 257 }; 258 259 static void __init omap3_pandora_legacy_init(void) 260 { 261 platform_device_register(&pandora_backlight); 262 } 263 #endif /* CONFIG_ARCH_OMAP3 */ 264 265 #ifdef CONFIG_SOC_DRA7XX 266 static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = { 267 .set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint, 268 }; 269 #endif 270 271 static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk) 272 { 273 struct clk_hw *hw = __clk_get_hw(clk); 274 struct clockdomain *clkdm = NULL; 275 struct clk_hw_omap *hwclk; 276 277 hwclk = to_clk_hw_omap(hw); 278 if (!omap2_clk_is_hw_omap(hw)) 279 return NULL; 280 281 if (hwclk && hwclk->clkdm_name) 282 clkdm = clkdm_lookup(hwclk->clkdm_name); 283 284 return clkdm; 285 } 286 287 /** 288 * ti_sysc_clkdm_init - find clockdomain based on clock 289 * @fck: device functional clock 290 * @ick: device interface clock 291 * @dev: struct device 292 * 293 * Populate clockdomain based on clock. It is needed for 294 * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain 295 * clockdomain idle during reset, enable and idle. 296 * 297 * Note that we assume interconnect driver manages the clocks 298 * and do not need to populate oh->_clk for dynamically 299 * allocated modules. 300 */ 301 static int ti_sysc_clkdm_init(struct device *dev, 302 struct clk *fck, struct clk *ick, 303 struct ti_sysc_cookie *cookie) 304 { 305 if (!IS_ERR(fck)) 306 cookie->clkdm = ti_sysc_find_one_clockdomain(fck); 307 if (cookie->clkdm) 308 return 0; 309 if (!IS_ERR(ick)) 310 cookie->clkdm = ti_sysc_find_one_clockdomain(ick); 311 if (cookie->clkdm) 312 return 0; 313 314 return -ENODEV; 315 } 316 317 static void ti_sysc_clkdm_deny_idle(struct device *dev, 318 const struct ti_sysc_cookie *cookie) 319 { 320 if (cookie->clkdm) 321 clkdm_deny_idle(cookie->clkdm); 322 } 323 324 static void ti_sysc_clkdm_allow_idle(struct device *dev, 325 const struct ti_sysc_cookie *cookie) 326 { 327 if (cookie->clkdm) 328 clkdm_allow_idle(cookie->clkdm); 329 } 330 331 #ifdef CONFIG_OMAP_HWMOD 332 static int ti_sysc_enable_module(struct device *dev, 333 const struct ti_sysc_cookie *cookie) 334 { 335 if (!cookie->data) 336 return -EINVAL; 337 338 return omap_hwmod_enable(cookie->data); 339 } 340 341 static int ti_sysc_idle_module(struct device *dev, 342 const struct ti_sysc_cookie *cookie) 343 { 344 if (!cookie->data) 345 return -EINVAL; 346 347 return omap_hwmod_idle(cookie->data); 348 } 349 350 static int ti_sysc_shutdown_module(struct device *dev, 351 const struct ti_sysc_cookie *cookie) 352 { 353 if (!cookie->data) 354 return -EINVAL; 355 356 return omap_hwmod_shutdown(cookie->data); 357 } 358 #endif /* CONFIG_OMAP_HWMOD */ 359 360 static bool ti_sysc_soc_type_gp(void) 361 { 362 return omap_type() == OMAP2_DEVICE_TYPE_GP; 363 } 364 365 static struct of_dev_auxdata omap_auxdata_lookup[]; 366 367 static struct ti_sysc_platform_data ti_sysc_pdata = { 368 .auxdata = omap_auxdata_lookup, 369 .soc_type_gp = ti_sysc_soc_type_gp, 370 .init_clockdomain = ti_sysc_clkdm_init, 371 .clkdm_deny_idle = ti_sysc_clkdm_deny_idle, 372 .clkdm_allow_idle = ti_sysc_clkdm_allow_idle, 373 #ifdef CONFIG_OMAP_HWMOD 374 .init_module = omap_hwmod_init_module, 375 .enable_module = ti_sysc_enable_module, 376 .idle_module = ti_sysc_idle_module, 377 .shutdown_module = ti_sysc_shutdown_module, 378 #endif 379 }; 380 381 static struct pcs_pdata pcs_pdata; 382 383 void omap_pcs_legacy_init(int irq, void (*rearm)(void)) 384 { 385 pcs_pdata.irq = irq; 386 pcs_pdata.rearm = rearm; 387 } 388 389 static struct ti_prm_platform_data ti_prm_pdata = { 390 .clkdm_deny_idle = clkdm_deny_idle, 391 .clkdm_allow_idle = clkdm_allow_idle, 392 .clkdm_lookup = clkdm_lookup, 393 }; 394 395 /* 396 * GPIOs for TWL are initialized by the I2C bus and need custom 397 * handing until DSS has device tree bindings. 398 */ 399 void omap_auxdata_legacy_init(struct device *dev) 400 { 401 if (dev->platform_data) 402 return; 403 404 if (strcmp("twl4030-gpio", dev_name(dev))) 405 return; 406 407 dev->platform_data = &twl_gpio_auxdata; 408 } 409 410 #if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) 411 static struct omap_mcbsp_platform_data mcbsp_pdata; 412 static void __init omap3_mcbsp_init(void) 413 { 414 omap3_mcbsp_init_pdata_callback(&mcbsp_pdata); 415 } 416 #else 417 static void __init omap3_mcbsp_init(void) {} 418 #endif 419 420 /* 421 * Few boards still need auxdata populated before we populate 422 * the dev entries in of_platform_populate(). 423 */ 424 static struct pdata_init auxdata_quirks[] __initdata = { 425 #ifdef CONFIG_SOC_OMAP2420 426 { "nokia,n800", omap2420_n8x0_legacy_init, }, 427 { "nokia,n810", omap2420_n8x0_legacy_init, }, 428 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, 429 #endif 430 #ifdef CONFIG_ARCH_OMAP3 431 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, 432 #endif 433 { /* sentinel */ }, 434 }; 435 436 struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR]; 437 438 static struct of_dev_auxdata omap_auxdata_lookup[] = { 439 #ifdef CONFIG_MACH_NOKIA_N8X0 440 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), 441 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data), 442 #endif 443 #ifdef CONFIG_ARCH_OMAP3 444 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu", 445 &omap3_iommu_pdata), 446 OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu", 447 &omap3_iommu_isp_pdata), 448 OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000, 449 "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), 450 OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000, 451 "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), 452 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]), 453 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]), 454 /* Only on am3517 */ 455 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), 456 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", 457 &am35xx_emac_pdata), 458 OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call), 459 /* McBSP modules with sidetone core */ 460 #if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) 461 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata), 462 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata), 463 #endif 464 #endif 465 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) 466 OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000, 467 "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]), 468 OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000, 469 "4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), 470 OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000, 471 "4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), 472 #endif 473 #ifdef CONFIG_SOC_DRA7XX 474 OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x40d01000, "40d01000.mmu", 475 &dra7_ipu1_dsp_iommu_pdata), 476 OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x41501000, "41501000.mmu", 477 &dra7_ipu1_dsp_iommu_pdata), 478 OF_DEV_AUXDATA("ti,dra7-iommu", 0x58882000, "58882000.mmu", 479 &dra7_ipu1_dsp_iommu_pdata), 480 #endif 481 /* Common auxdata */ 482 OF_DEV_AUXDATA("simple-pm-bus", 0, NULL, omap_auxdata_lookup), 483 OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata), 484 OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata), 485 OF_DEV_AUXDATA("ti,omap-prm-inst", 0, NULL, &ti_prm_pdata), 486 OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info), 487 { /* sentinel */ }, 488 }; 489 490 /* 491 * Few boards still need to initialize some legacy devices with 492 * platform data until the drivers support device tree. 493 */ 494 static struct pdata_init pdata_quirks[] __initdata = { 495 #ifdef CONFIG_ARCH_OMAP3 496 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, }, 497 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, 498 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, 499 { "nokia,omap3-n900", nokia_n900_legacy_init, }, 500 { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, 501 { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, 502 { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, }, 503 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, 504 { "ti,am3517-evm", am3517_evm_legacy_init, }, 505 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, }, 506 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, }, 507 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, }, 508 #endif 509 { /* sentinel */ }, 510 }; 511 512 static void pdata_quirks_check(struct pdata_init *quirks) 513 { 514 while (quirks->compatible) { 515 if (of_machine_is_compatible(quirks->compatible)) { 516 if (quirks->fn) 517 quirks->fn(); 518 } 519 quirks++; 520 } 521 } 522 523 static const char * const pdata_quirks_init_nodes[] = { 524 "prcm", 525 "prm", 526 }; 527 528 static void __init 529 pdata_quirks_init_clocks(const struct of_device_id *omap_dt_match_table) 530 { 531 struct device_node *np; 532 int i; 533 534 for (i = 0; i < ARRAY_SIZE(pdata_quirks_init_nodes); i++) { 535 np = of_find_node_by_name(NULL, pdata_quirks_init_nodes[i]); 536 if (!np) 537 continue; 538 539 of_platform_populate(np, omap_dt_match_table, 540 omap_auxdata_lookup, NULL); 541 542 of_node_put(np); 543 } 544 } 545 546 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) 547 { 548 /* 549 * We still need this for omap2420 and omap3 PM to work, others are 550 * using drivers/misc/sram.c already. 551 */ 552 if (of_machine_is_compatible("ti,omap2420") || 553 of_machine_is_compatible("ti,omap3")) 554 omap_sdrc_init(NULL, NULL); 555 556 if (of_machine_is_compatible("ti,omap3")) 557 omap3_mcbsp_init(); 558 pdata_quirks_check(auxdata_quirks); 559 560 pdata_quirks_init_clocks(omap_dt_match_table); 561 562 of_platform_populate(NULL, omap_dt_match_table, 563 omap_auxdata_lookup, NULL); 564 pdata_quirks_check(pdata_quirks); 565 } 566