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 "control.h"
  35 #include "omap_device.h"
  36 #include "omap-pm.h"
  37 #include "omap-secure.h"
  38 #include "soc.h"
  39 #include "hsmmc.h"
  40
  41 static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2];
  42
  43 struct pdata_init {
  44         const char *compatible;
  45         void (*fn)(void);
  46 };
  47
  48 static struct of_dev_auxdata omap_auxdata_lookup[];
  49 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
  50
  51 #ifdef CONFIG_MACH_NOKIA_N8X0
  52 static void __init omap2420_n8x0_legacy_init(void)
  53 {
  54         omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
  55 }
  56 #else
  57 #define omap2420_n8x0_legacy_init       NULL
  58 #endif
  59
  60 #ifdef CONFIG_ARCH_OMAP3
  61 /*
  62  * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
  63  * mode for MMC1 in case bootloader did not configure things.
  64  * Note that if the pins are used for MMC1, pbias-regulator
  65  * manages the IO voltage.
  66  */
  67 static void __init omap3_gpio126_127_129(void)
  68 {
  69         u32 reg;
  70
  71         reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
  72         reg &= ~OMAP343X_PBIASLITEVMODE1;
  73         reg |= OMAP343X_PBIASLITEPWRDNZ1;
  74         omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
  75         if (cpu_is_omap3630()) {
  76                 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
  77                 reg |= OMAP36XX_GPIO_IO_PWRDNZ;
  78                 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
  79         }
  80 }
  81
  82 static void __init hsmmc2_internal_input_clk(void)
  83 {
  84         u32 reg;
  85
  86         reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
  87         reg |= OMAP2_MMCSDIO2ADPCLKISEL;
  88         omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
  89 }
  90
  91 static struct iommu_platform_data omap3_iommu_pdata = {
  92         .reset_name = "mmu",
  93         .assert_reset = omap_device_assert_hardreset,
  94         .deassert_reset = omap_device_deassert_hardreset,
  95 };
  96
  97 static int omap3_sbc_t3730_twl_callback(struct device *dev,
  98                                            unsigned gpio,
  99                                            unsigned ngpio)
 100 {
 101         int res;
 102
 103         res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
 104                                "wlan pwr");
 105         if (res)
 106                 return res;
 107
 108         gpio_export(gpio, 0);
 109
 110         return 0;
 111 }
 112
 113 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
 114 {
 115         int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
 116
 117         if (err) {
 118                 pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
 119                         hub_name, err);
 120                 return;
 121         }
 122
 123         gpio_export(gpio, 0);
 124
 125         udelay(10);
 126         gpio_set_value(gpio, 1);
 127         msleep(1);
 128 }
 129
 130 static void __init omap3_sbc_t3730_twl_init(void)
 131 {
 132         twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
 133 }
 134
 135 static void __init omap3_sbc_t3730_legacy_init(void)
 136 {
 137         omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
 138 }
 139
 140 static void __init omap3_sbc_t3530_legacy_init(void)
 141 {
 142         omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
 143 }
 144
 145 static struct ti_st_plat_data wilink_pdata = {
 146         .nshutdown_gpio = 137,
 147         .dev_name = "/dev/ttyO1",
 148         .flow_cntrl = 1,
 149         .baud_rate = 300000,
 150 };
 151
 152 static struct platform_device wl18xx_device = {
 153         .name   = "kim",
 154         .id     = -1,
 155         .dev    = {
 156                 .platform_data = &wilink_pdata,
 157         }
 158 };
 159
 160 static struct ti_st_plat_data wilink7_pdata = {
 161         .nshutdown_gpio = 162,
 162         .dev_name = "/dev/ttyO1",
 163         .flow_cntrl = 1,
 164         .baud_rate = 3000000,
 165 };
 166
 167 static struct platform_device wl128x_device = {
 168         .name   = "kim",
 169         .id     = -1,
 170         .dev    = {
 171                 .platform_data = &wilink7_pdata,
 172         }
 173 };
 174
 175 static struct platform_device btwilink_device = {
 176         .name   = "btwilink",
 177         .id     = -1,
 178 };
 179
 180 static void __init omap3_igep0020_rev_f_legacy_init(void)
 181 {
 182         platform_device_register(&wl18xx_device);
 183         platform_device_register(&btwilink_device);
 184 }
 185
 186 static void __init omap3_igep0030_rev_g_legacy_init(void)
 187 {
 188         platform_device_register(&wl18xx_device);
 189         platform_device_register(&btwilink_device);
 190 }
 191
 192 static void __init omap3_evm_legacy_init(void)
 193 {
 194         hsmmc2_internal_input_clk();
 195 }
 196
 197 static void am35xx_enable_emac_int(void)
 198 {
 199         u32 v;
 200
 201         v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 202         v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 203               AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 204         omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 205         omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 206 }
 207
 208 static void am35xx_disable_emac_int(void)
 209 {
 210         u32 v;
 211
 212         v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 213         v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 214         omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 215         omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 216 }
 217
 218 static struct emac_platform_data am35xx_emac_pdata = {
 219         .interrupt_enable       = am35xx_enable_emac_int,
 220         .interrupt_disable      = am35xx_disable_emac_int,
 221 };
 222
 223 static void __init am35xx_emac_reset(void)
 224 {
 225         u32 v;
 226
 227         v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 228         v &= ~AM35XX_CPGMACSS_SW_RST;
 229         omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
 230         omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
 231 }
 232
 233 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
 234         { 56,   GPIOF_OUT_INIT_HIGH,    "wlan pwr" },
 235         { 4,    GPIOF_OUT_INIT_HIGH,    "xcvr noe" },
 236 };
 237
 238 static void __init omap3_sbc_t3517_wifi_init(void)
 239 {
 240         int err = gpio_request_array(cm_t3517_wlan_gpios,
 241                                 ARRAY_SIZE(cm_t3517_wlan_gpios));
 242         if (err) {
 243                 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
 244                 return;
 245         }
 246
 247         gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
 248         gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
 249
 250         msleep(100);
 251         gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
 252 }
 253
 254 static void __init omap3_sbc_t3517_legacy_init(void)
 255 {
 256         omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
 257         omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
 258         am35xx_emac_reset();
 259         hsmmc2_internal_input_clk();
 260         omap3_sbc_t3517_wifi_init();
 261 }
 262
 263 static void __init am3517_evm_legacy_init(void)
 264 {
 265         am35xx_emac_reset();
 266 }
 267
 268 static struct platform_device omap3_rom_rng_device = {
 269         .name           = "omap3-rom-rng",
 270         .id             = -1,
 271         .dev    = {
 272                 .platform_data  = rx51_secure_rng_call,
 273         },
 274 };
 275
 276 static void __init nokia_n900_legacy_init(void)
 277 {
 278         hsmmc2_internal_input_clk();
 279         mmc_pdata[0].name = "external";
 280         mmc_pdata[1].name = "internal";
 281
 282         if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
 283                 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
 284                         pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
 285                         /* set IBE to 1 */
 286                         rx51_secure_update_aux_cr(BIT(6), 0);
 287                 } else {
 288                         pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
 289                         pr_warn("Thumb binaries may crash randomly without this workaround\n");
 290                 }
 291
 292                 pr_info("RX-51: Registering OMAP3 HWRNG device\n");
 293                 platform_device_register(&omap3_rom_rng_device);
 294         }
 295 }
 296
 297 static void __init omap3_tao3530_legacy_init(void)
 298 {
 299         hsmmc2_internal_input_clk();
 300 }
 301
 302 static void __init omap3_logicpd_torpedo_init(void)
 303 {
 304         omap3_gpio126_127_129();
 305         platform_device_register(&wl128x_device);
 306         platform_device_register(&btwilink_device);
 307 }
 308
 309 /* omap3pandora legacy devices */
 310
 311 static struct platform_device pandora_backlight = {
 312         .name   = "pandora-backlight",
 313         .id     = -1,
 314 };
 315
 316 static void __init omap3_pandora_legacy_init(void)
 317 {
 318         platform_device_register(&pandora_backlight);
 319 }
 320 #endif /* CONFIG_ARCH_OMAP3 */
 321
 322 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 323 static struct iommu_platform_data omap4_iommu_pdata = {
 324         .reset_name = "mmu_cache",
 325         .assert_reset = omap_device_assert_hardreset,
 326         .deassert_reset = omap_device_deassert_hardreset,
 327 };
 328 #endif
 329
 330 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
 331 static struct wkup_m3_platform_data wkup_m3_data = {
 332         .reset_name = "wkup_m3",
 333         .assert_reset = omap_device_assert_hardreset,
 334         .deassert_reset = omap_device_deassert_hardreset,
 335 };
 336 #endif
 337
 338 #ifdef CONFIG_SOC_OMAP5
 339 static void __init omap5_uevm_legacy_init(void)
 340 {
 341 }
 342 #endif
 343
 344 #ifdef CONFIG_SOC_DRA7XX
 345 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc1;
 346 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc2;
 347 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc3;
 348
 349 static void __init dra7x_evm_mmc_quirk(void)
 350 {
 351         if (omap_rev() == DRA752_REV_ES1_1 || omap_rev() == DRA752_REV_ES1_0) {
 352                 dra7_hsmmc_data_mmc1.version = "rev11";
 353                 dra7_hsmmc_data_mmc1.max_freq = 96000000;
 354
 355                 dra7_hsmmc_data_mmc2.version = "rev11";
 356                 dra7_hsmmc_data_mmc2.max_freq = 48000000;
 357
 358                 dra7_hsmmc_data_mmc3.version = "rev11";
 359                 dra7_hsmmc_data_mmc3.max_freq = 48000000;
 360         }
 361 }
 362 #endif
 363
 364 static struct pcs_pdata pcs_pdata;
 365
 366 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
 367 {
 368         pcs_pdata.irq = irq;
 369         pcs_pdata.rearm = rearm;
 370 }
 371
 372 /*
 373  * GPIOs for TWL are initialized by the I2C bus and need custom
 374  * handing until DSS has device tree bindings.
 375  */
 376 void omap_auxdata_legacy_init(struct device *dev)
 377 {
 378         if (dev->platform_data)
 379                 return;
 380
 381         if (strcmp("twl4030-gpio", dev_name(dev)))
 382                 return;
 383
 384         dev->platform_data = &twl_gpio_auxdata;
 385 }
 386
 387 /* Dual mode timer PWM callbacks platdata */
 388 #if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
 389 static struct pwm_omap_dmtimer_pdata pwm_dmtimer_pdata = {
 390         .request_by_node = omap_dm_timer_request_by_node,
 391         .request_specific = omap_dm_timer_request_specific,
 392         .request = omap_dm_timer_request,
 393         .set_source = omap_dm_timer_set_source,
 394         .get_irq = omap_dm_timer_get_irq,
 395         .set_int_enable = omap_dm_timer_set_int_enable,
 396         .set_int_disable = omap_dm_timer_set_int_disable,
 397         .free = omap_dm_timer_free,
 398         .enable = omap_dm_timer_enable,
 399         .disable = omap_dm_timer_disable,
 400         .get_fclk = omap_dm_timer_get_fclk,
 401         .start = omap_dm_timer_start,
 402         .stop = omap_dm_timer_stop,
 403         .set_load = omap_dm_timer_set_load,
 404         .set_match = omap_dm_timer_set_match,
 405         .set_pwm = omap_dm_timer_set_pwm,
 406         .set_prescaler = omap_dm_timer_set_prescaler,
 407         .read_counter = omap_dm_timer_read_counter,
 408         .write_counter = omap_dm_timer_write_counter,
 409         .read_status = omap_dm_timer_read_status,
 410         .write_status = omap_dm_timer_write_status,
 411 };
 412 #endif
 413
 414 static struct ir_rx51_platform_data __maybe_unused rx51_ir_data = {
 415         .set_max_mpu_wakeup_lat = omap_pm_set_max_mpu_wakeup_lat,
 416 };
 417
 418 static struct platform_device __maybe_unused rx51_ir_device = {
 419         .name           = "ir_rx51",
 420         .id             = -1,
 421         .dev            = {
 422                 .platform_data = &rx51_ir_data,
 423         },
 424 };
 425
 426 #if IS_ENABLED(CONFIG_SND_OMAP_SOC_MCBSP)
 427 static struct omap_mcbsp_platform_data mcbsp_pdata;
 428 static void __init omap3_mcbsp_init(void)
 429 {
 430         omap3_mcbsp_init_pdata_callback(&mcbsp_pdata);
 431 }
 432 #else
 433 static void __init omap3_mcbsp_init(void) {}
 434 #endif
 435
 436 /*
 437  * Few boards still need auxdata populated before we populate
 438  * the dev entries in of_platform_populate().
 439  */
 440 static struct pdata_init auxdata_quirks[] __initdata = {
 441 #ifdef CONFIG_SOC_OMAP2420
 442         { "nokia,n800", omap2420_n8x0_legacy_init, },
 443         { "nokia,n810", omap2420_n8x0_legacy_init, },
 444         { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
 445 #endif
 446 #ifdef CONFIG_ARCH_OMAP3
 447         { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
 448 #endif
 449         { /* sentinel */ },
 450 };
 451
 452 static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 453 #ifdef CONFIG_MACH_NOKIA_N8X0
 454         OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
 455         OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
 456         OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
 457 #endif
 458 #ifdef CONFIG_ARCH_OMAP3
 459         OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
 460                        &omap3_iommu_pdata),
 461         OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]),
 462         OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]),
 463         OF_DEV_AUXDATA("nokia,n900-ir", 0, "n900-ir", &rx51_ir_data),
 464         /* Only on am3517 */
 465         OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
 466         OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
 467                        &am35xx_emac_pdata),
 468         /* McBSP modules with sidetone core */
 469 #if IS_ENABLED(CONFIG_SND_OMAP_SOC_MCBSP)
 470         OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata),
 471         OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata),
 472 #endif
 473 #endif
 474 #ifdef CONFIG_SOC_AM33XX
 475         OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
 476                        &wkup_m3_data),
 477 #endif
 478 #ifdef CONFIG_SOC_AM43XX
 479         OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
 480                        &wkup_m3_data),
 481 #endif
 482 #if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
 483         OF_DEV_AUXDATA("ti,omap-dmtimer-pwm", 0, NULL, &pwm_dmtimer_pdata),
 484 #endif
 485 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 486         OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
 487                        &omap4_iommu_pdata),
 488         OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
 489                        &omap4_iommu_pdata),
 490 #endif
 491 #ifdef CONFIG_SOC_DRA7XX
 492         OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x4809c000, "4809c000.mmc",
 493                        &dra7_hsmmc_data_mmc1),
 494         OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480b4000, "480b4000.mmc",
 495                        &dra7_hsmmc_data_mmc2),
 496         OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480ad000, "480ad000.mmc",
 497                        &dra7_hsmmc_data_mmc3),
 498 #endif
 499         /* Common auxdata */
 500         OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
 501         { /* sentinel */ },
 502 };
 503
 504 /*
 505  * Few boards still need to initialize some legacy devices with
 506  * platform data until the drivers support device tree.
 507  */
 508 static struct pdata_init pdata_quirks[] __initdata = {
 509 #ifdef CONFIG_ARCH_OMAP3
 510         { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
 511         { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
 512         { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
 513         { "nokia,omap3-n900", nokia_n900_legacy_init, },
 514         { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 515         { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 516         { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
 517         { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
 518         { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, },
 519         { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
 520         { "ti,am3517-evm", am3517_evm_legacy_init, },
 521         { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
 522         { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
 523         { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
 524 #endif
 525 #ifdef CONFIG_SOC_OMAP5
 526         { "ti,omap5-uevm", omap5_uevm_legacy_init, },
 527 #endif
 528 #ifdef CONFIG_SOC_DRA7XX
 529         { "ti,dra7-evm", dra7x_evm_mmc_quirk, },
 530 #endif
 531         { /* sentinel */ },
 532 };
 533
 534 static void pdata_quirks_check(struct pdata_init *quirks)
 535 {
 536         while (quirks->compatible) {
 537                 if (of_machine_is_compatible(quirks->compatible)) {
 538                         if (quirks->fn)
 539                                 quirks->fn();
 540                 }
 541                 quirks++;
 542         }
 543 }
 544
 545 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
 546 {
 547         /*
 548          * We still need this for omap2420 and omap3 PM to work, others are
 549          * using drivers/misc/sram.c already.
 550          */
 551         if (of_machine_is_compatible("ti,omap2420") ||
 552             of_machine_is_compatible("ti,omap3"))
 553                 omap_sdrc_init(NULL, NULL);
 554
 555         if (of_machine_is_compatible("ti,omap3"))
 556                 omap3_mcbsp_init();
 557         pdata_quirks_check(auxdata_quirks);
 558         of_platform_populate(NULL, omap_dt_match_table,
 559                              omap_auxdata_lookup, NULL);
 560         pdata_quirks_check(pdata_quirks);
 561 }