arch/arm/mach-omap2/pdata-quirks.c - linux - Git at Google

 /*
  * Legacy platform_data quirks
  *
  * Copyright (C) 2013 Texas Instruments
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
 #include <linux/davinci_emac.h>
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
 #include <linux/ti_wilink_st.h>

 #include <linux/platform_data/pinctrl-single.h>
 #include <linux/platform_data/iommu-omap.h>

 #include "common.h"
 #include "common-board-devices.h"
 #include "dss-common.h"
 #include "control.h"
 #include "omap_device.h"
 #include "omap-secure.h"
 #include "soc.h"

 struct pdata_init {
 	const char *compatible;
 	void (*fn)(void);
 };

 struct of_dev_auxdata omap_auxdata_lookup[];
 static struct twl4030_gpio_platform_data twl_gpio_auxdata;

 #ifdef CONFIG_MACH_NOKIA_N8X0
 static void __init omap2420_n8x0_legacy_init(void)
 {
 	omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
 }
 #else
 #define omap2420_n8x0_legacy_init	NULL
 #endif

 #ifdef CONFIG_ARCH_OMAP3
 static void __init hsmmc2_internal_input_clk(void)
 {
 	u32 reg;

 	reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
 	reg |= OMAP2_MMCSDIO2ADPCLKISEL;
 	omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
 }

 static struct iommu_platform_data omap3_iommu_pdata = {
 	.reset_name = "mmu",
 	.assert_reset = omap_device_assert_hardreset,
 	.deassert_reset = omap_device_deassert_hardreset,
 };

 static int omap3_sbc_t3730_twl_callback(struct device *dev,
 					   unsigned gpio,
 					   unsigned ngpio)
 {
 	int res;

 	res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
 			       "wlan pwr");
 	if (res)
 		return res;

 	gpio_export(gpio, 0);

 	return 0;
 }

 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
 {
 	int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);

 	if (err) {
 		pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
 			hub_name, err);
 		return;
 	}

 	gpio_export(gpio, 0);

 	udelay(10);
 	gpio_set_value(gpio, 1);
 	msleep(1);
 }

 static void __init omap3_sbc_t3730_twl_init(void)
 {
 	twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
 }

 static void __init omap3_sbc_t3730_legacy_init(void)
 {
 	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
 }

 static void __init omap3_sbc_t3530_legacy_init(void)
 {
 	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
 }

 struct ti_st_plat_data wilink_pdata = {
 	.nshutdown_gpio = 137,
 	.dev_name = "/dev/ttyO1",
 	.flow_cntrl = 1,
 	.baud_rate = 300000,
 };

 static struct platform_device wl18xx_device = {
 	.name	= "kim",
 	.id	= -1,
 	.dev	= {
 		.platform_data = &wilink_pdata,
 	}
 };

 static struct platform_device btwilink_device = {
 	.name	= "btwilink",
 	.id	= -1,
 };

 static void __init omap3_igep0020_rev_f_legacy_init(void)
 {
 	platform_device_register(&wl18xx_device);
 	platform_device_register(&btwilink_device);
 }

 static void __init omap3_igep0030_rev_g_legacy_init(void)
 {
 	platform_device_register(&wl18xx_device);
 	platform_device_register(&btwilink_device);
 }

 static void __init omap3_evm_legacy_init(void)
 {
 	hsmmc2_internal_input_clk();
 }

 static void am35xx_enable_emac_int(void)
 {
 	u32 v;

 	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 	v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 	      AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 }

 static void am35xx_disable_emac_int(void)
 {
 	u32 v;

 	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 	v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
 	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
 }

 static struct emac_platform_data am35xx_emac_pdata = {
 	.interrupt_enable	= am35xx_enable_emac_int,
 	.interrupt_disable	= am35xx_disable_emac_int,
 };

 static void __init am35xx_emac_reset(void)
 {
 	u32 v;

 	v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 	v &= ~AM35XX_CPGMACSS_SW_RST;
 	omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
 	omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
 }

 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
 	{ 56,	GPIOF_OUT_INIT_HIGH,	"wlan pwr" },
 	{ 4,	GPIOF_OUT_INIT_HIGH,	"xcvr noe" },
 };

 static void __init omap3_sbc_t3517_wifi_init(void)
 {
 	int err = gpio_request_array(cm_t3517_wlan_gpios,
 				ARRAY_SIZE(cm_t3517_wlan_gpios));
 	if (err) {
 		pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
 		return;
 	}

 	gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
 	gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);

 	msleep(100);
 	gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
 }

 static void __init omap3_sbc_t3517_legacy_init(void)
 {
 	omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
 	omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
 	am35xx_emac_reset();
 	hsmmc2_internal_input_clk();
 	omap3_sbc_t3517_wifi_init();
 }

 static void __init am3517_evm_legacy_init(void)
 {
 	am35xx_emac_reset();
 }

 static struct platform_device omap3_rom_rng_device = {
 	.name		= "omap3-rom-rng",
 	.id		= -1,
 	.dev	= {
 		.platform_data	= rx51_secure_rng_call,
 	},
 };

 static void __init nokia_n900_legacy_init(void)
 {
 	hsmmc2_internal_input_clk();

 	if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
 		if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
 			pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
 			/* set IBE to 1 */
 			rx51_secure_update_aux_cr(BIT(6), 0);
 		} else {
 			pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
 			pr_warn("Thumb binaries may crash randomly without this workaround\n");
 		}

 		pr_info("RX-51: Registring OMAP3 HWRNG device\n");
 		platform_device_register(&omap3_rom_rng_device);

 	}
 }

 static void __init omap3_tao3530_legacy_init(void)
 {
 	hsmmc2_internal_input_clk();
 }
 #endif /* CONFIG_ARCH_OMAP3 */

 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 static struct iommu_platform_data omap4_iommu_pdata = {
 	.reset_name = "mmu_cache",
 	.assert_reset = omap_device_assert_hardreset,
 	.deassert_reset = omap_device_deassert_hardreset,
 };
 #endif

 #ifdef CONFIG_SOC_OMAP5
 static void __init omap5_uevm_legacy_init(void)
 {
 }
 #endif

 static struct pcs_pdata pcs_pdata;

 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
 {
 	pcs_pdata.irq = irq;
 	pcs_pdata.rearm = rearm;
 }

 /*
  * GPIOs for TWL are initialized by the I2C bus and need custom
  * handing until DSS has device tree bindings.
  */
 void omap_auxdata_legacy_init(struct device *dev)
 {
 	if (dev->platform_data)
 		return;

 	if (strcmp("twl4030-gpio", dev_name(dev)))
 		return;

 	dev->platform_data = &twl_gpio_auxdata;
 }

 /*
  * Few boards still need auxdata populated before we populate
  * the dev entries in of_platform_populate().
  */
 static struct pdata_init auxdata_quirks[] __initdata = {
 #ifdef CONFIG_SOC_OMAP2420
 	{ "nokia,n800", omap2420_n8x0_legacy_init, },
 	{ "nokia,n810", omap2420_n8x0_legacy_init, },
 	{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
 #endif
 #ifdef CONFIG_ARCH_OMAP3
 	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
 #endif
 	{ /* sentinel */ },
 };

 struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 #ifdef CONFIG_MACH_NOKIA_N8X0
 	OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
 	OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
 	OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
 #endif
 #ifdef CONFIG_ARCH_OMAP3
 	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
 	OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
 	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
 	OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
 		       &omap3_iommu_pdata),
 	/* Only on am3517 */
 	OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
 	OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
 		       &am35xx_emac_pdata),
 #endif
 #ifdef CONFIG_ARCH_OMAP4
 	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
 	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
 #endif
 #ifdef CONFIG_SOC_OMAP5
 	OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
 	OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
 #endif
 #ifdef CONFIG_SOC_DRA7XX
 	OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
 #endif
 #ifdef CONFIG_SOC_AM43XX
 	OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
 #endif
 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 	OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
 		       &omap4_iommu_pdata),
 	OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
 		       &omap4_iommu_pdata),
 #endif
 	{ /* sentinel */ },
 };

 /*
  * Few boards still need to initialize some legacy devices with
  * platform data until the drivers support device tree.
  */
 static struct pdata_init pdata_quirks[] __initdata = {
 #ifdef CONFIG_ARCH_OMAP3
 	{ "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
 	{ "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
 	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
 	{ "nokia,omap3-n900", nokia_n900_legacy_init, },
 	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 	{ "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
 	{ "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
 	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
 	{ "ti,am3517-evm", am3517_evm_legacy_init, },
 	{ "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
 #endif
 #ifdef CONFIG_SOC_OMAP5
 	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
 #endif
 	{ /* sentinel */ },
 };

 static void pdata_quirks_check(struct pdata_init *quirks)
 {
 	while (quirks->compatible) {
 		if (of_machine_is_compatible(quirks->compatible)) {
 			if (quirks->fn)
 				quirks->fn();
 			break;
 		}
 		quirks++;
 	}
 }

 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
 {
 	omap_sdrc_init(NULL, NULL);
 	pdata_quirks_check(auxdata_quirks);
 	of_platform_populate(NULL, omap_dt_match_table,
 			     omap_auxdata_lookup, NULL);
 	pdata_quirks_check(pdata_quirks);
 }
	/*
	* Legacy platform_data quirks
	*
	* Copyright (C) 2013 Texas Instruments
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*/
	#include <linux/clk.h>
	#include <linux/davinci_emac.h>
	#include <linux/gpio.h>
	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/of_platform.h>
	#include <linux/ti_wilink_st.h>

	#include <linux/platform_data/pinctrl-single.h>
	#include <linux/platform_data/iommu-omap.h>

	#include "common.h"
	#include "common-board-devices.h"
	#include "dss-common.h"
	#include "control.h"
	#include "omap_device.h"
	#include "omap-secure.h"
	#include "soc.h"

	struct pdata_init {
	const char *compatible;
	void (*fn)(void);
	};

	struct of_dev_auxdata omap_auxdata_lookup[];
	static struct twl4030_gpio_platform_data twl_gpio_auxdata;

	#ifdef CONFIG_MACH_NOKIA_N8X0
	static void __init omap2420_n8x0_legacy_init(void)
	{
	omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
	}
	#else
	#define omap2420_n8x0_legacy_init NULL
	#endif

	#ifdef CONFIG_ARCH_OMAP3
	static void __init hsmmc2_internal_input_clk(void)
	{
	u32 reg;

	reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
	reg \|= OMAP2_MMCSDIO2ADPCLKISEL;
	omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
	}

	static struct iommu_platform_data omap3_iommu_pdata = {
	.reset_name = "mmu",
	.assert_reset = omap_device_assert_hardreset,
	.deassert_reset = omap_device_deassert_hardreset,
	};

	static int omap3_sbc_t3730_twl_callback(struct device *dev,
	unsigned gpio,
	unsigned ngpio)
	{
	int res;

	res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
	"wlan pwr");
	if (res)
	return res;

	gpio_export(gpio, 0);

	return 0;
	}

	static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
	{
	int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);

	if (err) {
	pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
	hub_name, err);
	return;
	}

	gpio_export(gpio, 0);

	udelay(10);
	gpio_set_value(gpio, 1);
	msleep(1);
	}

	static void __init omap3_sbc_t3730_twl_init(void)
	{
	twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
	}

	static void __init omap3_sbc_t3730_legacy_init(void)
	{
	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
	}

	static void __init omap3_sbc_t3530_legacy_init(void)
	{
	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
	}

	struct ti_st_plat_data wilink_pdata = {
	.nshutdown_gpio = 137,
	.dev_name = "/dev/ttyO1",
	.flow_cntrl = 1,
	.baud_rate = 300000,
	};

	static struct platform_device wl18xx_device = {
	.name = "kim",
	.id = -1,
	.dev = {
	.platform_data = &wilink_pdata,
	}
	};

	static struct platform_device btwilink_device = {
	.name = "btwilink",
	.id = -1,
	};

	static void __init omap3_igep0020_rev_f_legacy_init(void)
	{
	platform_device_register(&wl18xx_device);
	platform_device_register(&btwilink_device);
	}

	static void __init omap3_igep0030_rev_g_legacy_init(void)
	{
	platform_device_register(&wl18xx_device);
	platform_device_register(&btwilink_device);
	}

	static void __init omap3_evm_legacy_init(void)
	{
	hsmmc2_internal_input_clk();
	}

	static void am35xx_enable_emac_int(void)
	{
	u32 v;

	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	v \|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR \| AM35XX_CPGMAC_C0_TX_PULSE_CLR \|
	AM35XX_CPGMAC_C0_MISC_PULSE_CLR \| AM35XX_CPGMAC_C0_RX_THRESH_CLR);
	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
	}

	static void am35xx_disable_emac_int(void)
	{
	u32 v;

	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	v \|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR \| AM35XX_CPGMAC_C0_TX_PULSE_CLR);
	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
	}

	static struct emac_platform_data am35xx_emac_pdata = {
	.interrupt_enable = am35xx_enable_emac_int,
	.interrupt_disable = am35xx_disable_emac_int,
	};

	static void __init am35xx_emac_reset(void)
	{
	u32 v;

	v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
	v &= ~AM35XX_CPGMACSS_SW_RST;
	omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
	omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
	}

	static struct gpio cm_t3517_wlan_gpios[] __initdata = {
	{ 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
	{ 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
	};

	static void __init omap3_sbc_t3517_wifi_init(void)
	{
	int err = gpio_request_array(cm_t3517_wlan_gpios,
	ARRAY_SIZE(cm_t3517_wlan_gpios));
	if (err) {
	pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
	return;
	}

	gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
	gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);

	msleep(100);
	gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
	}

	static void __init omap3_sbc_t3517_legacy_init(void)
	{
	omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
	omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
	am35xx_emac_reset();
	hsmmc2_internal_input_clk();
	omap3_sbc_t3517_wifi_init();
	}

	static void __init am3517_evm_legacy_init(void)
	{
	am35xx_emac_reset();
	}

	static struct platform_device omap3_rom_rng_device = {
	.name = "omap3-rom-rng",
	.id = -1,
	.dev = {
	.platform_data = rx51_secure_rng_call,
	},
	};

	static void __init nokia_n900_legacy_init(void)
	{
	hsmmc2_internal_input_clk();

	if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
	if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
	pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
	/* set IBE to 1 */
	rx51_secure_update_aux_cr(BIT(6), 0);
	} else {
	pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
	pr_warn("Thumb binaries may crash randomly without this workaround\n");
	}

	pr_info("RX-51: Registring OMAP3 HWRNG device\n");
	platform_device_register(&omap3_rom_rng_device);

	}
	}

	static void __init omap3_tao3530_legacy_init(void)
	{
	hsmmc2_internal_input_clk();
	}
	#endif /* CONFIG_ARCH_OMAP3 */

	#if defined(CONFIG_ARCH_OMAP4) \|\| defined(CONFIG_SOC_OMAP5)
	static struct iommu_platform_data omap4_iommu_pdata = {
	.reset_name = "mmu_cache",
	.assert_reset = omap_device_assert_hardreset,
	.deassert_reset = omap_device_deassert_hardreset,
	};
	#endif

	#ifdef CONFIG_SOC_OMAP5
	static void __init omap5_uevm_legacy_init(void)
	{
	}
	#endif

	static struct pcs_pdata pcs_pdata;

	void omap_pcs_legacy_init(int irq, void (*rearm)(void))
	{
	pcs_pdata.irq = irq;
	pcs_pdata.rearm = rearm;
	}

	/*
	* GPIOs for TWL are initialized by the I2C bus and need custom
	* handing until DSS has device tree bindings.
	*/
	void omap_auxdata_legacy_init(struct device *dev)
	{
	if (dev->platform_data)
	return;

	if (strcmp("twl4030-gpio", dev_name(dev)))
	return;

	dev->platform_data = &twl_gpio_auxdata;
	}

	/*
	* Few boards still need auxdata populated before we populate
	* the dev entries in of_platform_populate().
	*/
	static struct pdata_init auxdata_quirks[] __initdata = {
	#ifdef CONFIG_SOC_OMAP2420
	{ "nokia,n800", omap2420_n8x0_legacy_init, },
	{ "nokia,n810", omap2420_n8x0_legacy_init, },
	{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
	#endif
	#ifdef CONFIG_ARCH_OMAP3
	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
	#endif
	{ /* sentinel */ },
	};

	struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
	#ifdef CONFIG_MACH_NOKIA_N8X0
	OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
	OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
	OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
	#endif
	#ifdef CONFIG_ARCH_OMAP3
	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
	&omap3_iommu_pdata),
	/* Only on am3517 */
	OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
	OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
	&am35xx_emac_pdata),
	#endif
	#ifdef CONFIG_ARCH_OMAP4
	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
	#endif
	#ifdef CONFIG_SOC_OMAP5
	OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
	#endif
	#ifdef CONFIG_SOC_DRA7XX
	OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
	#endif
	#ifdef CONFIG_SOC_AM43XX
	OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
	#endif
	#if defined(CONFIG_ARCH_OMAP4) \|\| defined(CONFIG_SOC_OMAP5)
	OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
	&omap4_iommu_pdata),
	OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
	&omap4_iommu_pdata),
	#endif
	{ /* sentinel */ },
	};

	/*
	* Few boards still need to initialize some legacy devices with
	* platform data until the drivers support device tree.
	*/
	static struct pdata_init pdata_quirks[] __initdata = {
	#ifdef CONFIG_ARCH_OMAP3
	{ "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
	{ "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
	{ "nokia,omap3-n900", nokia_n900_legacy_init, },
	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
	{ "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
	{ "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
	{ "ti,am3517-evm", am3517_evm_legacy_init, },
	{ "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
	#endif
	#ifdef CONFIG_SOC_OMAP5
	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
	#endif
	{ /* sentinel */ },
	};

	static void pdata_quirks_check(struct pdata_init *quirks)
	{
	while (quirks->compatible) {
	if (of_machine_is_compatible(quirks->compatible)) {
	if (quirks->fn)
	quirks->fn();
	break;
	}
	quirks++;
	}
	}

	void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
	{
	omap_sdrc_init(NULL, NULL);
	pdata_quirks_check(auxdata_quirks);
	of_platform_populate(NULL, omap_dt_match_table,
	omap_auxdata_lookup, NULL);
	pdata_quirks_check(pdata_quirks);
	}