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/hsmmc-omap.h>
  25 #include <linux/platform_data/iommu-omap.h>
  26 #include <linux/platform_data/wkup_m3.h>
  27 #include <linux/platform_data/pwm_omap_dmtimer.h>
  28 #include <linux/platform_data/media/ir-rx51.h>
  29 #include <linux/platform_data/asoc-ti-mcbsp.h>
  30 #include <plat/dmtimer.h>
  31
  32 #include "common.h"
  33 #include "common-board-devices.h"
  34 #include "dss-common.h"
  35 #include "control.h"
  36 #include "omap_device.h"
  37 #include "omap-pm.h"
  38 #include "omap-secure.h"
  39 #include "soc.h"
  40 #include "hsmmc.h"
  41
  42 static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2];
  43
  44 struct pdata_init {
  45         const char *compatible;
  46         void (*fn)(void);
  47 };
  48
  49 static struct of_dev_auxdata omap_auxdata_lookup[];
  50 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
  51
  52 #ifdef CONFIG_MACH_NOKIA_N8X0
  53 static void __init omap2420_n8x0_legacy_init(void)
  54 {
  55         omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
  56 }
  57 #else
  58 #define omap2420_n8x0_legacy_init       NULL
  59 #endif
  60
  61 #ifdef CONFIG_ARCH_OMAP3
  62 /*
  63  * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
  64  * mode for MMC1 in case bootloader did not configure things.
  65  * Note that if the pins are used for MMC1, pbias-regulator
  66  * manages the IO voltage.
  67  */
  68 static void __init omap3_gpio126_127_129(void)
  69 {
  70         u32 reg;
  71
  72         reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
  73         reg &= ~OMAP343X_PBIASLITEVMODE1;
  74         reg |= OMAP343X_PBIASLITEPWRDNZ1;
  75         omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
  76         if (cpu_is_omap3630()) {
  77                 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
  78                 reg |= OMAP36XX_GPIO_IO_PWRDNZ;
  79                 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
  80         }
  81 }
  82
  83 static void __init hsmmc2_internal_input_clk(void)
  84 {
  85         u32 reg;
  86
  87         reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
  88         reg |= OMAP2_MMCSDIO2ADPCLKISEL;
  89         omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
  90 }
  91
  92 static struct iommu_platform_data omap3_iommu_pdata = {
  93         .reset_name = "mmu",
  94         .assert_reset = omap_device_assert_hardreset,
  95         .deassert_reset = omap_device_deassert_hardreset,
  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 struct ti_st_plat_data wilink_pdata = {
 147         .nshutdown_gpio = 137,
 148         .dev_name = "/dev/ttyO1",
 149         .flow_cntrl = 1,
 150         .baud_rate = 3000000,
 151 };
 152
 153 static struct platform_device wl18xx_device = {
 154         .name   = "kim",
 155         .id     = -1,
 156         .dev    = {
 157                 .platform_data = &wilink_pdata,
 158         }
 159 };
 160
 161 static struct ti_st_plat_data wilink7_pdata = {
 162         .nshutdown_gpio = 162,
 163         .dev_name = "/dev/ttyO1",
 164         .flow_cntrl = 1,
 165         .baud_rate = 3000000,
 166 };
 167
 168 static struct platform_device wl128x_device = {
 169         .name   = "kim",
 170         .id     = -1,
 171         .dev    = {
 172                 .platform_data = &wilink7_pdata,
 173         }
 174 };
 175
 176 static struct platform_device btwilink_device = {
 177         .name   = "btwilink",
 178         .id     = -1,
 179 };
 180
 181 static void __init omap3_igep0020_rev_f_legacy_init(void)
 182 {
 183         platform_device_register(&wl18xx_device);
 184         platform_device_register(&btwilink_device);
 185 }
 186
 187 static void __init omap3_igep0030_rev_g_legacy_init(void)
 188 {
 189         platform_device_register(&wl18xx_device);
 190         platform_device_register(&btwilink_device);
 191 }
 192
 193 static void __init omap3_evm_legacy_init(void)
 194 {
 195         hsmmc2_internal_input_clk();
 196 }
 197
 198 static void am35xx_enable_emac_int(void)
 199 {
 200         u32 v;
 201
 202         v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 203         v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 204               AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 205         omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 206         omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 207 }
 208
 209 static void am35xx_disable_emac_int(void)
 210 {
 211         u32 v;
 212
 213         v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 214         v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 215         omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 216         omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 217 }
 218
 219 static struct emac_platform_data am35xx_emac_pdata = {
 220         .interrupt_enable       = am35xx_enable_emac_int,
 221         .interrupt_disable      = am35xx_disable_emac_int,
 222 };
 223
 224 static void __init am35xx_emac_reset(void)
 225 {
 226         u32 v;
 227
 228         v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 229         v &= ~AM35XX_CPGMACSS_SW_RST;
 230         omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
 231         omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
 232 }
 233
 234 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
 235         { 56,   GPIOF_OUT_INIT_HIGH,    "wlan pwr" },
 236         { 4,    GPIOF_OUT_INIT_HIGH,    "xcvr noe" },
 237 };
 238
 239 static void __init omap3_sbc_t3517_wifi_init(void)
 240 {
 241         int err = gpio_request_array(cm_t3517_wlan_gpios,
 242                                 ARRAY_SIZE(cm_t3517_wlan_gpios));
 243         if (err) {
 244                 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
 245                 return;
 246         }
 247
 248         gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
 249         gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
 250
 251         msleep(100);
 252         gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
 253 }
 254
 255 static void __init omap3_sbc_t3517_legacy_init(void)
 256 {
 257         omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
 258         omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
 259         am35xx_emac_reset();
 260         hsmmc2_internal_input_clk();
 261         omap3_sbc_t3517_wifi_init();
 262 }
 263
 264 static void __init am3517_evm_legacy_init(void)
 265 {
 266         am35xx_emac_reset();
 267 }
 268
 269 static struct platform_device omap3_rom_rng_device = {
 270         .name           = "omap3-rom-rng",
 271         .id             = -1,
 272         .dev    = {
 273                 .platform_data  = rx51_secure_rng_call,
 274         },
 275 };
 276
 277 static void __init nokia_n900_legacy_init(void)
 278 {
 279         hsmmc2_internal_input_clk();
 280         mmc_pdata[0].name = "external";
 281         mmc_pdata[1].name = "internal";
 282
 283         if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
 284                 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
 285                         pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
 286                         /* set IBE to 1 */
 287                         rx51_secure_update_aux_cr(BIT(6), 0);
 288                 } else {
 289                         pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
 290                         pr_warn("Thumb binaries may crash randomly without this workaround\n");
 291                 }
 292
 293                 pr_info("RX-51: Registering OMAP3 HWRNG device\n");
 294                 platform_device_register(&omap3_rom_rng_device);
 295         }
 296 }
 297
 298 static void __init omap3_tao3530_legacy_init(void)
 299 {
 300         hsmmc2_internal_input_clk();
 301 }
 302
 303 static void __init omap3_logicpd_torpedo_init(void)
 304 {
 305         omap3_gpio126_127_129();
 306         platform_device_register(&wl128x_device);
 307         platform_device_register(&btwilink_device);
 308 }
 309
 310 /* omap3pandora legacy devices */
 311
 312 static struct platform_device pandora_backlight = {
 313         .name   = "pandora-backlight",
 314         .id     = -1,
 315 };
 316
 317 static void __init omap3_pandora_legacy_init(void)
 318 {
 319         platform_device_register(&pandora_backlight);
 320 }
 321 #endif /* CONFIG_ARCH_OMAP3 */
 322
 323 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 324 static struct iommu_platform_data omap4_iommu_pdata = {
 325         .reset_name = "mmu_cache",
 326         .assert_reset = omap_device_assert_hardreset,
 327         .deassert_reset = omap_device_deassert_hardreset,
 328 };
 329 #endif
 330
 331 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
 332 static struct wkup_m3_platform_data wkup_m3_data = {
 333         .reset_name = "wkup_m3",
 334         .assert_reset = omap_device_assert_hardreset,
 335         .deassert_reset = omap_device_deassert_hardreset,
 336 };
 337 #endif
 338
 339 #ifdef CONFIG_SOC_OMAP5
 340 static void __init omap5_uevm_legacy_init(void)
 341 {
 342 }
 343 #endif
 344
 345 static struct pcs_pdata pcs_pdata;
 346
 347 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
 348 {
 349         pcs_pdata.irq = irq;
 350         pcs_pdata.rearm = rearm;
 351 }
 352
 353 /*
 354  * GPIOs for TWL are initialized by the I2C bus and need custom
 355  * handing until DSS has device tree bindings.
 356  */
 357 void omap_auxdata_legacy_init(struct device *dev)
 358 {
 359         if (dev->platform_data)
 360                 return;
 361
 362         if (strcmp("twl4030-gpio", dev_name(dev)))
 363                 return;
 364
 365         dev->platform_data = &twl_gpio_auxdata;
 366 }
 367
 368 /* Dual mode timer PWM callbacks platdata */
 369 #if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
 370 static struct pwm_omap_dmtimer_pdata pwm_dmtimer_pdata = {
 371         .request_by_node = omap_dm_timer_request_by_node,
 372         .request_specific = omap_dm_timer_request_specific,
 373         .request = omap_dm_timer_request,
 374         .set_source = omap_dm_timer_set_source,
 375         .get_irq = omap_dm_timer_get_irq,
 376         .set_int_enable = omap_dm_timer_set_int_enable,
 377         .set_int_disable = omap_dm_timer_set_int_disable,
 378         .free = omap_dm_timer_free,
 379         .enable = omap_dm_timer_enable,
 380         .disable = omap_dm_timer_disable,
 381         .get_fclk = omap_dm_timer_get_fclk,
 382         .start = omap_dm_timer_start,
 383         .stop = omap_dm_timer_stop,
 384         .set_load = omap_dm_timer_set_load,
 385         .set_match = omap_dm_timer_set_match,
 386         .set_pwm = omap_dm_timer_set_pwm,
 387         .set_prescaler = omap_dm_timer_set_prescaler,
 388         .read_counter = omap_dm_timer_read_counter,
 389         .write_counter = omap_dm_timer_write_counter,
 390         .read_status = omap_dm_timer_read_status,
 391         .write_status = omap_dm_timer_write_status,
 392 };
 393 #endif
 394
 395 static struct lirc_rx51_platform_data __maybe_unused rx51_lirc_data = {
 396         .set_max_mpu_wakeup_lat = omap_pm_set_max_mpu_wakeup_lat,
 397 };
 398
 399 static struct platform_device __maybe_unused rx51_lirc_device = {
 400         .name           = "lirc_rx51",
 401         .id             = -1,
 402         .dev            = {
 403                 .platform_data = &rx51_lirc_data,
 404         },
 405 };
 406
 407 #if IS_ENABLED(CONFIG_SND_OMAP_SOC_MCBSP)
 408 static struct omap_mcbsp_platform_data mcbsp_pdata;
 409 static void __init omap3_mcbsp_init(void)
 410 {
 411         omap3_mcbsp_init_pdata_callback(&mcbsp_pdata);
 412 }
 413 #else
 414 static void __init omap3_mcbsp_init(void) {}
 415 #endif
 416
 417 /*
 418  * Few boards still need auxdata populated before we populate
 419  * the dev entries in of_platform_populate().
 420  */
 421 static struct pdata_init auxdata_quirks[] __initdata = {
 422 #ifdef CONFIG_SOC_OMAP2420
 423         { "nokia,n800", omap2420_n8x0_legacy_init, },
 424         { "nokia,n810", omap2420_n8x0_legacy_init, },
 425         { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
 426 #endif
 427 #ifdef CONFIG_ARCH_OMAP3
 428         { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
 429 #endif
 430         { /* sentinel */ },
 431 };
 432
 433 static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 434 #ifdef CONFIG_MACH_NOKIA_N8X0
 435         OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
 436         OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
 437         OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
 438 #endif
 439 #ifdef CONFIG_ARCH_OMAP3
 440         OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
 441                        &omap3_iommu_pdata),
 442         OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]),
 443         OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]),
 444         OF_DEV_AUXDATA("nokia,n900-ir", 0, "n900-ir", &rx51_lirc_data),
 445         /* Only on am3517 */
 446         OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
 447         OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
 448                        &am35xx_emac_pdata),
 449         /* McBSP modules with sidetone core */
 450 #if IS_ENABLED(CONFIG_SND_OMAP_SOC_MCBSP)
 451         OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata),
 452         OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata),
 453 #endif
 454 #endif
 455 #ifdef CONFIG_SOC_AM33XX
 456         OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
 457                        &wkup_m3_data),
 458 #endif
 459 #ifdef CONFIG_SOC_AM43XX
 460         OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
 461                        &wkup_m3_data),
 462 #endif
 463 #if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
 464         OF_DEV_AUXDATA("ti,omap-dmtimer-pwm", 0, NULL, &pwm_dmtimer_pdata),
 465 #endif
 466 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 467         OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
 468                        &omap4_iommu_pdata),
 469         OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
 470                        &omap4_iommu_pdata),
 471 #endif
 472         /* Common auxdata */
 473         OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
 474         { /* sentinel */ },
 475 };
 476
 477 /*
 478  * Few boards still need to initialize some legacy devices with
 479  * platform data until the drivers support device tree.
 480  */
 481 static struct pdata_init pdata_quirks[] __initdata = {
 482 #ifdef CONFIG_ARCH_OMAP3
 483         { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
 484         { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
 485         { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
 486         { "nokia,omap3-n900", nokia_n900_legacy_init, },
 487         { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 488         { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 489         { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
 490         { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
 491         { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, },
 492         { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
 493         { "ti,am3517-evm", am3517_evm_legacy_init, },
 494         { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
 495         { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
 496         { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
 497 #endif
 498 #ifdef CONFIG_SOC_OMAP5
 499         { "ti,omap5-uevm", omap5_uevm_legacy_init, },
 500 #endif
 501         { /* sentinel */ },
 502 };
 503
 504 static void pdata_quirks_check(struct pdata_init *quirks)
 505 {
 506         while (quirks->compatible) {
 507                 if (of_machine_is_compatible(quirks->compatible)) {
 508                         if (quirks->fn)
 509                                 quirks->fn();
 510                 }
 511                 quirks++;
 512         }
 513 }
 514
 515 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
 516 {
 517         /*
 518          * We still need this for omap2420 and omap3 PM to work, others are
 519          * using drivers/misc/sram.c already.
 520          */
 521         if (of_machine_is_compatible("ti,omap2420") ||
 522             of_machine_is_compatible("ti,omap3"))
 523                 omap_sdrc_init(NULL, NULL);
 524
 525         if (of_machine_is_compatible("ti,omap3"))
 526                 omap3_mcbsp_init();
 527         pdata_quirks_check(auxdata_quirks);
 528         of_platform_populate(NULL, omap_dt_match_table,
 529                              omap_auxdata_lookup, NULL);
 530         pdata_quirks_check(pdata_quirks);
 531 }