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 ti_st_plat_data wilink7_pdata = {
 154         .nshutdown_gpio = 162,
 155         .dev_name = "/dev/ttyO1",
 156         .flow_cntrl = 1,
 157         .baud_rate = 300000,
 158 };
 159
 160 static struct platform_device wl128x_device = {
 161         .name   = "kim",
 162         .id     = -1,
 163         .dev    = {
 164                 .platform_data = &wilink7_pdata,
 165         }
 166 };
 167
 168 static struct platform_device btwilink_device = {
 169         .name   = "btwilink",
 170         .id     = -1,
 171 };
 172
 173 static void __init omap3_igep0020_rev_f_legacy_init(void)
 174 {
 175         platform_device_register(&wl18xx_device);
 176         platform_device_register(&btwilink_device);
 177 }
 178
 179 static void __init omap3_igep0030_rev_g_legacy_init(void)
 180 {
 181         platform_device_register(&wl18xx_device);
 182         platform_device_register(&btwilink_device);
 183 }
 184
 185 static void __init omap3_evm_legacy_init(void)
 186 {
 187         hsmmc2_internal_input_clk();
 188 }
 189
 190 static void am35xx_enable_emac_int(void)
 191 {
 192         u32 v;
 193
 194         v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 195         v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 196               AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 197         omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 198         omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 199 }
 200
 201 static void am35xx_disable_emac_int(void)
 202 {
 203         u32 v;
 204
 205         v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 206         v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 207         omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 208         omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 209 }
 210
 211 static struct emac_platform_data am35xx_emac_pdata = {
 212         .interrupt_enable       = am35xx_enable_emac_int,
 213         .interrupt_disable      = am35xx_disable_emac_int,
 214 };
 215
 216 static void __init am35xx_emac_reset(void)
 217 {
 218         u32 v;
 219
 220         v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 221         v &= ~AM35XX_CPGMACSS_SW_RST;
 222         omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
 223         omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
 224 }
 225
 226 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
 227         { 56,   GPIOF_OUT_INIT_HIGH,    "wlan pwr" },
 228         { 4,    GPIOF_OUT_INIT_HIGH,    "xcvr noe" },
 229 };
 230
 231 static void __init omap3_sbc_t3517_wifi_init(void)
 232 {
 233         int err = gpio_request_array(cm_t3517_wlan_gpios,
 234                                 ARRAY_SIZE(cm_t3517_wlan_gpios));
 235         if (err) {
 236                 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
 237                 return;
 238         }
 239
 240         gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
 241         gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
 242
 243         msleep(100);
 244         gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
 245 }
 246
 247 static void __init omap3_sbc_t3517_legacy_init(void)
 248 {
 249         omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
 250         omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
 251         am35xx_emac_reset();
 252         hsmmc2_internal_input_clk();
 253         omap3_sbc_t3517_wifi_init();
 254 }
 255
 256 static void __init am3517_evm_legacy_init(void)
 257 {
 258         am35xx_emac_reset();
 259 }
 260
 261 static struct platform_device omap3_rom_rng_device = {
 262         .name           = "omap3-rom-rng",
 263         .id             = -1,
 264         .dev    = {
 265                 .platform_data  = rx51_secure_rng_call,
 266         },
 267 };
 268
 269 static void __init nokia_n900_legacy_init(void)
 270 {
 271         hsmmc2_internal_input_clk();
 272
 273         if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
 274                 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
 275                         pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
 276                         /* set IBE to 1 */
 277                         rx51_secure_update_aux_cr(BIT(6), 0);
 278                 } else {
 279                         pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
 280                         pr_warn("Thumb binaries may crash randomly without this workaround\n");
 281                 }
 282
 283                 pr_info("RX-51: Registering OMAP3 HWRNG device\n");
 284                 platform_device_register(&omap3_rom_rng_device);
 285
 286         }
 287 }
 288
 289 static void __init omap3_tao3530_legacy_init(void)
 290 {
 291         hsmmc2_internal_input_clk();
 292 }
 293
 294 static void __init omap3_logicpd_torpedo_init(void)
 295 {
 296         omap3_gpio126_127_129();
 297         platform_device_register(&wl128x_device);
 298         platform_device_register(&btwilink_device);
 299 }
 300
 301 /* omap3pandora legacy devices */
 302 #define PANDORA_WIFI_IRQ_GPIO           21
 303 #define PANDORA_WIFI_NRESET_GPIO        23
 304
 305 static struct platform_device pandora_backlight = {
 306         .name   = "pandora-backlight",
 307         .id     = -1,
 308 };
 309
 310 static struct regulator_consumer_supply pandora_vmmc3_supply[] = {
 311         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"),
 312 };
 313
 314 static struct regulator_init_data pandora_vmmc3 = {
 315         .constraints = {
 316                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
 317         },
 318         .num_consumer_supplies  = ARRAY_SIZE(pandora_vmmc3_supply),
 319         .consumer_supplies      = pandora_vmmc3_supply,
 320 };
 321
 322 static struct fixed_voltage_config pandora_vwlan = {
 323         .supply_name            = "vwlan",
 324         .microvolts             = 1800000, /* 1.8V */
 325         .gpio                   = PANDORA_WIFI_NRESET_GPIO,
 326         .startup_delay          = 50000, /* 50ms */
 327         .enable_high            = 1,
 328         .init_data              = &pandora_vmmc3,
 329 };
 330
 331 static struct platform_device pandora_vwlan_device = {
 332         .name           = "reg-fixed-voltage",
 333         .id             = 1,
 334         .dev = {
 335                 .platform_data = &pandora_vwlan,
 336         },
 337 };
 338
 339 static void pandora_wl1251_init_card(struct mmc_card *card)
 340 {
 341         /*
 342          * We have TI wl1251 attached to MMC3. Pass this information to
 343          * SDIO core because it can't be probed by normal methods.
 344          */
 345         if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) {
 346                 card->quirks |= MMC_QUIRK_NONSTD_SDIO;
 347                 card->cccr.wide_bus = 1;
 348                 card->cis.vendor = 0x104c;
 349                 card->cis.device = 0x9066;
 350                 card->cis.blksize = 512;
 351                 card->cis.max_dtr = 24000000;
 352                 card->ocr = 0x80;
 353         }
 354 }
 355
 356 static struct omap2_hsmmc_info pandora_mmc3[] = {
 357         {
 358                 .mmc            = 3,
 359                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
 360                 .gpio_cd        = -EINVAL,
 361                 .gpio_wp        = -EINVAL,
 362                 .init_card      = pandora_wl1251_init_card,
 363         },
 364         {}      /* Terminator */
 365 };
 366
 367 static void __init pandora_wl1251_init(void)
 368 {
 369         struct wl1251_platform_data pandora_wl1251_pdata;
 370         int ret;
 371
 372         memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata));
 373
 374         pandora_wl1251_pdata.power_gpio = -1;
 375
 376         ret = gpio_request_one(PANDORA_WIFI_IRQ_GPIO, GPIOF_IN, "wl1251 irq");
 377         if (ret < 0)
 378                 goto fail;
 379
 380         pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO);
 381         if (pandora_wl1251_pdata.irq < 0)
 382                 goto fail_irq;
 383
 384         pandora_wl1251_pdata.use_eeprom = true;
 385         ret = wl1251_set_platform_data(&pandora_wl1251_pdata);
 386         if (ret < 0)
 387                 goto fail_irq;
 388
 389         return;
 390
 391 fail_irq:
 392         gpio_free(PANDORA_WIFI_IRQ_GPIO);
 393 fail:
 394         pr_err("wl1251 board initialisation failed\n");
 395 }
 396
 397 static void __init omap3_pandora_legacy_init(void)
 398 {
 399         platform_device_register(&pandora_backlight);
 400         platform_device_register(&pandora_vwlan_device);
 401         omap_hsmmc_init(pandora_mmc3);
 402         omap_hsmmc_late_init(pandora_mmc3);
 403         pandora_wl1251_init();
 404 }
 405 #endif /* CONFIG_ARCH_OMAP3 */
 406
 407 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 408 static struct iommu_platform_data omap4_iommu_pdata = {
 409         .reset_name = "mmu_cache",
 410         .assert_reset = omap_device_assert_hardreset,
 411         .deassert_reset = omap_device_deassert_hardreset,
 412 };
 413 #endif
 414
 415 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
 416 static struct wkup_m3_platform_data wkup_m3_data = {
 417         .reset_name = "wkup_m3",
 418         .assert_reset = omap_device_assert_hardreset,
 419         .deassert_reset = omap_device_deassert_hardreset,
 420 };
 421 #endif
 422
 423 #ifdef CONFIG_SOC_OMAP5
 424 static void __init omap5_uevm_legacy_init(void)
 425 {
 426 }
 427 #endif
 428
 429 static struct pcs_pdata pcs_pdata;
 430
 431 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
 432 {
 433         pcs_pdata.irq = irq;
 434         pcs_pdata.rearm = rearm;
 435 }
 436
 437 /*
 438  * GPIOs for TWL are initialized by the I2C bus and need custom
 439  * handing until DSS has device tree bindings.
 440  */
 441 void omap_auxdata_legacy_init(struct device *dev)
 442 {
 443         if (dev->platform_data)
 444                 return;
 445
 446         if (strcmp("twl4030-gpio", dev_name(dev)))
 447                 return;
 448
 449         dev->platform_data = &twl_gpio_auxdata;
 450 }
 451
 452 /*
 453  * Few boards still need auxdata populated before we populate
 454  * the dev entries in of_platform_populate().
 455  */
 456 static struct pdata_init auxdata_quirks[] __initdata = {
 457 #ifdef CONFIG_SOC_OMAP2420
 458         { "nokia,n800", omap2420_n8x0_legacy_init, },
 459         { "nokia,n810", omap2420_n8x0_legacy_init, },
 460         { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
 461 #endif
 462 #ifdef CONFIG_ARCH_OMAP3
 463         { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
 464 #endif
 465         { /* sentinel */ },
 466 };
 467
 468 static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 469 #ifdef CONFIG_MACH_NOKIA_N8X0
 470         OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
 471         OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
 472         OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
 473 #endif
 474 #ifdef CONFIG_ARCH_OMAP3
 475         OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
 476         OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
 477         OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
 478         OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
 479                        &omap3_iommu_pdata),
 480         /* Only on am3517 */
 481         OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
 482         OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
 483                        &am35xx_emac_pdata),
 484 #endif
 485 #ifdef CONFIG_SOC_AM33XX
 486         OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
 487                        &wkup_m3_data),
 488 #endif
 489 #ifdef CONFIG_ARCH_OMAP4
 490         OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
 491         OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
 492 #endif
 493 #ifdef CONFIG_SOC_OMAP5
 494         OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
 495         OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
 496 #endif
 497 #ifdef CONFIG_SOC_DRA7XX
 498         OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
 499 #endif
 500 #ifdef CONFIG_SOC_AM43XX
 501         OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
 502         OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
 503                        &wkup_m3_data),
 504 #endif
 505 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 506         OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
 507                        &omap4_iommu_pdata),
 508         OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
 509                        &omap4_iommu_pdata),
 510 #endif
 511         { /* sentinel */ },
 512 };
 513
 514 /*
 515  * Few boards still need to initialize some legacy devices with
 516  * platform data until the drivers support device tree.
 517  */
 518 static struct pdata_init pdata_quirks[] __initdata = {
 519 #ifdef CONFIG_ARCH_OMAP3
 520         { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
 521         { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
 522         { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
 523         { "nokia,omap3-n900", nokia_n900_legacy_init, },
 524         { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 525         { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 526         { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
 527         { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
 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         { /* sentinel */ },
 539 };
 540
 541 static void pdata_quirks_check(struct pdata_init *quirks)
 542 {
 543         while (quirks->compatible) {
 544                 if (of_machine_is_compatible(quirks->compatible)) {
 545                         if (quirks->fn)
 546                                 quirks->fn();
 547                         break;
 548                 }
 549                 quirks++;
 550         }
 551 }
 552
 553 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
 554 {
 555         /*
 556          * We still need this for omap2420 and omap3 PM to work, others are
 557          * using drivers/misc/sram.c already.
 558          */
 559         if (of_machine_is_compatible("ti,omap2420") ||
 560             of_machine_is_compatible("ti,omap3"))
 561                 omap_sdrc_init(NULL, NULL);
 562
 563         pdata_quirks_check(auxdata_quirks);
 564         of_platform_populate(NULL, omap_dt_match_table,
 565                              omap_auxdata_lookup, NULL);
 566         pdata_quirks_check(pdata_quirks);
 567 }