kernel/arch/arm/mach-omap2/pdata-quirks.c

   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 }