arch/arm/plat-omap/devices.c - maze/linux - Git at Google

 /*
  * linux/arch/arm/plat-omap/devices.c
  *
  * Common platform device setup/initialization for OMAP1 and OMAP2
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  */

 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>

 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>

 #include <mach/tc.h>
 #include <mach/control.h>
 #include <mach/board.h>
 #include <mach/mmc.h>
 #include <mach/mux.h>
 #include <mach/gpio.h>
 #include <mach/menelaus.h>
 #include <mach/mcbsp.h>
 #include <mach/dsp_common.h>

 #if	defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)

 static struct dsp_platform_data dsp_pdata = {
 	.kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
 };

 static struct resource omap_dsp_resources[] = {
 	{
 		.name	= "dsp_mmu",
 		.start	= -1,
 		.flags	= IORESOURCE_IRQ,
 	},
 };

 static struct platform_device omap_dsp_device = {
 	.name		= "dsp",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(omap_dsp_resources),
 	.resource	= omap_dsp_resources,
 	.dev = {
 		.platform_data = &dsp_pdata,
 	},
 };

 static inline void omap_init_dsp(void)
 {
 	struct resource *res;
 	int irq;

 	if (cpu_is_omap15xx())
 		irq = INT_1510_DSP_MMU;
 	else if (cpu_is_omap16xx())
 		irq = INT_1610_DSP_MMU;
 	else if (cpu_is_omap24xx())
 		irq = INT_24XX_DSP_MMU;

 	res = platform_get_resource_byname(&omap_dsp_device,
 					   IORESOURCE_IRQ, "dsp_mmu");
 	res->start = irq;

 	platform_device_register(&omap_dsp_device);
 }

 int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
 {
 	static DEFINE_MUTEX(dsp_pdata_lock);

 	spin_lock_init(&kdev->lock);

 	mutex_lock(&dsp_pdata_lock);
 	list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
 	mutex_unlock(&dsp_pdata_lock);

 	return 0;
 }
 EXPORT_SYMBOL(dsp_kfunc_device_register);

 #else
 static inline void omap_init_dsp(void) { }
 #endif	/* CONFIG_OMAP_DSP */

 /*-------------------------------------------------------------------------*/
 #if	defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)

 static void omap_init_kp(void)
 {
 	/* 2430 and 34xx keypad is on TWL4030 */
 	if (cpu_is_omap2430() || cpu_is_omap34xx())
 		return;

 	if (machine_is_omap_h2() || machine_is_omap_h3()) {
 		omap_cfg_reg(F18_1610_KBC0);
 		omap_cfg_reg(D20_1610_KBC1);
 		omap_cfg_reg(D19_1610_KBC2);
 		omap_cfg_reg(E18_1610_KBC3);
 		omap_cfg_reg(C21_1610_KBC4);

 		omap_cfg_reg(G18_1610_KBR0);
 		omap_cfg_reg(F19_1610_KBR1);
 		omap_cfg_reg(H14_1610_KBR2);
 		omap_cfg_reg(E20_1610_KBR3);
 		omap_cfg_reg(E19_1610_KBR4);
 		omap_cfg_reg(N19_1610_KBR5);
 	} else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
 		omap_cfg_reg(E2_730_KBR0);
 		omap_cfg_reg(J7_730_KBR1);
 		omap_cfg_reg(E1_730_KBR2);
 		omap_cfg_reg(F3_730_KBR3);
 		omap_cfg_reg(D2_730_KBR4);

 		omap_cfg_reg(C2_730_KBC0);
 		omap_cfg_reg(D3_730_KBC1);
 		omap_cfg_reg(E4_730_KBC2);
 		omap_cfg_reg(F4_730_KBC3);
 		omap_cfg_reg(E3_730_KBC4);
 	} else if (machine_is_omap_h4()) {
 		omap_cfg_reg(T19_24XX_KBR0);
 		omap_cfg_reg(R19_24XX_KBR1);
 		omap_cfg_reg(V18_24XX_KBR2);
 		omap_cfg_reg(M21_24XX_KBR3);
 		omap_cfg_reg(E5__24XX_KBR4);
 		if (omap_has_menelaus()) {
 			omap_cfg_reg(B3__24XX_KBR5);
 			omap_cfg_reg(AA4_24XX_KBC2);
 			omap_cfg_reg(B13_24XX_KBC6);
 		} else {
 			omap_cfg_reg(M18_24XX_KBR5);
 			omap_cfg_reg(H19_24XX_KBC2);
 			omap_cfg_reg(N19_24XX_KBC6);
 		}
 		omap_cfg_reg(R20_24XX_KBC0);
 		omap_cfg_reg(M14_24XX_KBC1);
 		omap_cfg_reg(V17_24XX_KBC3);
 		omap_cfg_reg(P21_24XX_KBC4);
 		omap_cfg_reg(L14_24XX_KBC5);
 	}
 }
 #else
 static inline void omap_init_kp(void) {}
 #endif

 /*-------------------------------------------------------------------------*/
 #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)

 static struct platform_device **omap_mcbsp_devices;

 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
 					int size)
 {
 	int i;

 	omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
 				     GFP_KERNEL);
 	if (!omap_mcbsp_devices) {
 		printk(KERN_ERR "Could not register McBSP devices\n");
 		return;
 	}

 	for (i = 0; i < size; i++) {
 		struct platform_device *new_mcbsp;
 		int ret;

 		new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
 		if (!new_mcbsp)
 			continue;
 		new_mcbsp->dev.platform_data = &config[i];
 		ret = platform_device_add(new_mcbsp);
 		if (ret) {
 			platform_device_put(new_mcbsp);
 			continue;
 		}
 		omap_mcbsp_devices[i] = new_mcbsp;
 	}
 }

 #else
 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
 					int size)
 {  }
 #endif

 /*-------------------------------------------------------------------------*/

 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
 	defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)

 #define OMAP_MMC_NR_RES		2

 /*
  * Register MMC devices. Called from mach-omap1 and mach-omap2 device init.
  */
 int __init omap_mmc_add(const char *name, int id, unsigned long base,
 				unsigned long size, unsigned int irq,
 				struct omap_mmc_platform_data *data)
 {
 	struct platform_device *pdev;
 	struct resource res[OMAP_MMC_NR_RES];
 	int ret;

 	pdev = platform_device_alloc(name, id);
 	if (!pdev)
 		return -ENOMEM;

 	memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
 	res[0].start = base;
 	res[0].end = base + size - 1;
 	res[0].flags = IORESOURCE_MEM;
 	res[1].start = res[1].end = irq;
 	res[1].flags = IORESOURCE_IRQ;

 	ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
 	if (ret == 0)
 		ret = platform_device_add_data(pdev, data, sizeof(*data));
 	if (ret)
 		goto fail;

 	ret = platform_device_add(pdev);
 	if (ret)
 		goto fail;
 	return 0;

 fail:
 	platform_device_put(pdev);
 	return ret;
 }

 #endif

 /*-------------------------------------------------------------------------*/

 /* Numbering for the SPI-capable controllers when used for SPI:
  * spi		= 1
  * uwire	= 2
  * mmc1..2	= 3..4
  * mcbsp1..3	= 5..7
  */

 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)

 #define	OMAP_UWIRE_BASE		0xfffb3000

 static struct resource uwire_resources[] = {
 	{
 		.start		= OMAP_UWIRE_BASE,
 		.end		= OMAP_UWIRE_BASE + 0x20,
 		.flags		= IORESOURCE_MEM,
 	},
 };

 static struct platform_device omap_uwire_device = {
 	.name	   = "omap_uwire",
 	.id	     = -1,
 	.num_resources	= ARRAY_SIZE(uwire_resources),
 	.resource	= uwire_resources,
 };

 static void omap_init_uwire(void)
 {
 	/* FIXME define and use a boot tag; not all boards will be hooking
 	 * up devices to the microwire controller, and multi-board configs
 	 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
 	 */

 	/* board-specific code must configure chipselects (only a few
 	 * are normally used) and SCLK/SDI/SDO (each has two choices).
 	 */
 	(void) platform_device_register(&omap_uwire_device);
 }
 #else
 static inline void omap_init_uwire(void) {}
 #endif

 /*-------------------------------------------------------------------------*/

 #if	defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)

 static struct resource wdt_resources[] = {
 	{
 		.flags		= IORESOURCE_MEM,
 	},
 };

 static struct platform_device omap_wdt_device = {
 	.name	   = "omap_wdt",
 	.id	     = -1,
 	.num_resources	= ARRAY_SIZE(wdt_resources),
 	.resource	= wdt_resources,
 };

 static void omap_init_wdt(void)
 {
 	if (cpu_is_omap16xx())
 		wdt_resources[0].start = 0xfffeb000;
 	else if (cpu_is_omap2420())
 		wdt_resources[0].start = 0x48022000; /* WDT2 */
 	else if (cpu_is_omap2430())
 		wdt_resources[0].start = 0x49016000; /* WDT2 */
 	else if (cpu_is_omap343x())
 		wdt_resources[0].start = 0x48314000; /* WDT2 */
 	else
 		return;

 	wdt_resources[0].end = wdt_resources[0].start + 0x4f;

 	(void) platform_device_register(&omap_wdt_device);
 }
 #else
 static inline void omap_init_wdt(void) {}
 #endif

 /*-------------------------------------------------------------------------*/

 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)

 #ifdef CONFIG_ARCH_OMAP24XX
 #define	OMAP_RNG_BASE		0x480A0000
 #else
 #define	OMAP_RNG_BASE		0xfffe5000
 #endif

 static struct resource rng_resources[] = {
 	{
 		.start		= OMAP_RNG_BASE,
 		.end		= OMAP_RNG_BASE + 0x4f,
 		.flags		= IORESOURCE_MEM,
 	},
 };

 static struct platform_device omap_rng_device = {
 	.name	   = "omap_rng",
 	.id	     = -1,
 	.num_resources	= ARRAY_SIZE(rng_resources),
 	.resource	= rng_resources,
 };

 static void omap_init_rng(void)
 {
 	(void) platform_device_register(&omap_rng_device);
 }
 #else
 static inline void omap_init_rng(void) {}
 #endif

 /*
  * This gets called after board-specific INIT_MACHINE, and initializes most
  * on-chip peripherals accessible on this board (except for few like USB):
  *
  *  (a) Does any "standard config" pin muxing needed.  Board-specific
  *	code will have muxed GPIO pins and done "nonstandard" setup;
  *	that code could live in the boot loader.
  *  (b) Populating board-specific platform_data with the data drivers
  *	rely on to handle wiring variations.
  *  (c) Creating platform devices as meaningful on this board and
  *	with this kernel configuration.
  *
  * Claiming GPIOs, and setting their direction and initial values, is the
  * responsibility of the device drivers.  So is responding to probe().
  *
  * Board-specific knowlege like creating devices or pin setup is to be
  * kept out of drivers as much as possible.  In particular, pin setup
  * may be handled by the boot loader, and drivers should expect it will
  * normally have been done by the time they're probed.
  */
 static int __init omap_init_devices(void)
 {
 	/* please keep these calls, and their implementations above,
 	 * in alphabetical order so they're easier to sort through.
 	 */
 	omap_init_dsp();
 	omap_init_kp();
 	omap_init_uwire();
 	omap_init_wdt();
 	omap_init_rng();
 	return 0;
 }
 arch_initcall(omap_init_devices);
	/*
	* linux/arch/arm/plat-omap/devices.c
	*
	* Common platform device setup/initialization for OMAP1 and OMAP2
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*/

	#include <linux/module.h>
	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/platform_device.h>
	#include <linux/io.h>

	#include <mach/hardware.h>
	#include <asm/mach-types.h>
	#include <asm/mach/map.h>

	#include <mach/tc.h>
	#include <mach/control.h>
	#include <mach/board.h>
	#include <mach/mmc.h>
	#include <mach/mux.h>
	#include <mach/gpio.h>
	#include <mach/menelaus.h>
	#include <mach/mcbsp.h>
	#include <mach/dsp_common.h>

	#if defined(CONFIG_OMAP_DSP) \|\| defined(CONFIG_OMAP_DSP_MODULE)

	static struct dsp_platform_data dsp_pdata = {
	.kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
	};

	static struct resource omap_dsp_resources[] = {
	{
	.name = "dsp_mmu",
	.start = -1,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct platform_device omap_dsp_device = {
	.name = "dsp",
	.id = -1,
	.num_resources = ARRAY_SIZE(omap_dsp_resources),
	.resource = omap_dsp_resources,
	.dev = {
	.platform_data = &dsp_pdata,
	},
	};

	static inline void omap_init_dsp(void)
	{
	struct resource *res;
	int irq;

	if (cpu_is_omap15xx())
	irq = INT_1510_DSP_MMU;
	else if (cpu_is_omap16xx())
	irq = INT_1610_DSP_MMU;
	else if (cpu_is_omap24xx())
	irq = INT_24XX_DSP_MMU;

	res = platform_get_resource_byname(&omap_dsp_device,
	IORESOURCE_IRQ, "dsp_mmu");
	res->start = irq;

	platform_device_register(&omap_dsp_device);
	}

	int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
	{
	static DEFINE_MUTEX(dsp_pdata_lock);

	spin_lock_init(&kdev->lock);

	mutex_lock(&dsp_pdata_lock);
	list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
	mutex_unlock(&dsp_pdata_lock);

	return 0;
	}
	EXPORT_SYMBOL(dsp_kfunc_device_register);

	#else
	static inline void omap_init_dsp(void) { }
	#endif /* CONFIG_OMAP_DSP */

	/-------------------------------------------------------------------------/
	#if defined(CONFIG_KEYBOARD_OMAP) \|\| defined(CONFIG_KEYBOARD_OMAP_MODULE)

	static void omap_init_kp(void)
	{
	/* 2430 and 34xx keypad is on TWL4030 */
	if (cpu_is_omap2430() \|\| cpu_is_omap34xx())
	return;

	if (machine_is_omap_h2() \|\| machine_is_omap_h3()) {
	omap_cfg_reg(F18_1610_KBC0);
	omap_cfg_reg(D20_1610_KBC1);
	omap_cfg_reg(D19_1610_KBC2);
	omap_cfg_reg(E18_1610_KBC3);
	omap_cfg_reg(C21_1610_KBC4);

	omap_cfg_reg(G18_1610_KBR0);
	omap_cfg_reg(F19_1610_KBR1);
	omap_cfg_reg(H14_1610_KBR2);
	omap_cfg_reg(E20_1610_KBR3);
	omap_cfg_reg(E19_1610_KBR4);
	omap_cfg_reg(N19_1610_KBR5);
	} else if (machine_is_omap_perseus2() \|\| machine_is_omap_fsample()) {
	omap_cfg_reg(E2_730_KBR0);
	omap_cfg_reg(J7_730_KBR1);
	omap_cfg_reg(E1_730_KBR2);
	omap_cfg_reg(F3_730_KBR3);
	omap_cfg_reg(D2_730_KBR4);

	omap_cfg_reg(C2_730_KBC0);
	omap_cfg_reg(D3_730_KBC1);
	omap_cfg_reg(E4_730_KBC2);
	omap_cfg_reg(F4_730_KBC3);
	omap_cfg_reg(E3_730_KBC4);
	} else if (machine_is_omap_h4()) {
	omap_cfg_reg(T19_24XX_KBR0);
	omap_cfg_reg(R19_24XX_KBR1);
	omap_cfg_reg(V18_24XX_KBR2);
	omap_cfg_reg(M21_24XX_KBR3);
	omap_cfg_reg(E5__24XX_KBR4);
	if (omap_has_menelaus()) {
	omap_cfg_reg(B3__24XX_KBR5);
	omap_cfg_reg(AA4_24XX_KBC2);
	omap_cfg_reg(B13_24XX_KBC6);
	} else {
	omap_cfg_reg(M18_24XX_KBR5);
	omap_cfg_reg(H19_24XX_KBC2);
	omap_cfg_reg(N19_24XX_KBC6);
	}
	omap_cfg_reg(R20_24XX_KBC0);
	omap_cfg_reg(M14_24XX_KBC1);
	omap_cfg_reg(V17_24XX_KBC3);
	omap_cfg_reg(P21_24XX_KBC4);
	omap_cfg_reg(L14_24XX_KBC5);
	}
	}
	#else
	static inline void omap_init_kp(void) {}
	#endif

	/-------------------------------------------------------------------------/
	#if defined(CONFIG_OMAP_MCBSP) \|\| defined(CONFIG_OMAP_MCBSP_MODULE)

	static struct platform_device **omap_mcbsp_devices;

	void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
	int size)
	{
	int i;

	omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
	GFP_KERNEL);
	if (!omap_mcbsp_devices) {
	printk(KERN_ERR "Could not register McBSP devices\n");
	return;
	}

	for (i = 0; i < size; i++) {
	struct platform_device *new_mcbsp;
	int ret;

	new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
	if (!new_mcbsp)
	continue;
	new_mcbsp->dev.platform_data = &config[i];
	ret = platform_device_add(new_mcbsp);
	if (ret) {
	platform_device_put(new_mcbsp);
	continue;
	}
	omap_mcbsp_devices[i] = new_mcbsp;
	}
	}

	#else
	void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
	int size)
	{ }
	#endif

	/-------------------------------------------------------------------------/

	#if defined(CONFIG_MMC_OMAP) \|\| defined(CONFIG_MMC_OMAP_MODULE) \|\| \
	defined(CONFIG_MMC_OMAP_HS) \|\| defined(CONFIG_MMC_OMAP_HS_MODULE)

	#define OMAP_MMC_NR_RES 2

	/*
	* Register MMC devices. Called from mach-omap1 and mach-omap2 device init.
	*/
	int __init omap_mmc_add(const char *name, int id, unsigned long base,
	unsigned long size, unsigned int irq,
	struct omap_mmc_platform_data *data)
	{
	struct platform_device *pdev;
	struct resource res[OMAP_MMC_NR_RES];
	int ret;

	pdev = platform_device_alloc(name, id);
	if (!pdev)
	return -ENOMEM;

	memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
	res[0].start = base;
	res[0].end = base + size - 1;
	res[0].flags = IORESOURCE_MEM;
	res[1].start = res[1].end = irq;
	res[1].flags = IORESOURCE_IRQ;

	ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
	if (ret == 0)
	ret = platform_device_add_data(pdev, data, sizeof(*data));
	if (ret)
	goto fail;

	ret = platform_device_add(pdev);
	if (ret)
	goto fail;
	return 0;

	fail:
	platform_device_put(pdev);
	return ret;
	}

	#endif

	/-------------------------------------------------------------------------/

	/* Numbering for the SPI-capable controllers when used for SPI:
	* spi = 1
	* uwire = 2
	* mmc1..2 = 3..4
	* mcbsp1..3 = 5..7
	*/

	#if defined(CONFIG_SPI_OMAP_UWIRE) \|\| defined(CONFIG_SPI_OMAP_UWIRE_MODULE)

	#define OMAP_UWIRE_BASE 0xfffb3000

	static struct resource uwire_resources[] = {
	{
	.start = OMAP_UWIRE_BASE,
	.end = OMAP_UWIRE_BASE + 0x20,
	.flags = IORESOURCE_MEM,
	},
	};

	static struct platform_device omap_uwire_device = {
	.name = "omap_uwire",
	.id = -1,
	.num_resources = ARRAY_SIZE(uwire_resources),
	.resource = uwire_resources,
	};

	static void omap_init_uwire(void)
	{
	/* FIXME define and use a boot tag; not all boards will be hooking
	* up devices to the microwire controller, and multi-board configs
	* mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
	*/

	/* board-specific code must configure chipselects (only a few
	* are normally used) and SCLK/SDI/SDO (each has two choices).
	*/
	(void) platform_device_register(&omap_uwire_device);
	}
	#else
	static inline void omap_init_uwire(void) {}
	#endif

	/-------------------------------------------------------------------------/

	#if defined(CONFIG_OMAP_WATCHDOG) \|\| defined(CONFIG_OMAP_WATCHDOG_MODULE)

	static struct resource wdt_resources[] = {
	{
	.flags = IORESOURCE_MEM,
	},
	};

	static struct platform_device omap_wdt_device = {
	.name = "omap_wdt",
	.id = -1,
	.num_resources = ARRAY_SIZE(wdt_resources),
	.resource = wdt_resources,
	};

	static void omap_init_wdt(void)
	{
	if (cpu_is_omap16xx())
	wdt_resources[0].start = 0xfffeb000;
	else if (cpu_is_omap2420())
	wdt_resources[0].start = 0x48022000; /* WDT2 */
	else if (cpu_is_omap2430())
	wdt_resources[0].start = 0x49016000; /* WDT2 */
	else if (cpu_is_omap343x())
	wdt_resources[0].start = 0x48314000; /* WDT2 */
	else
	return;

	wdt_resources[0].end = wdt_resources[0].start + 0x4f;

	(void) platform_device_register(&omap_wdt_device);
	}
	#else
	static inline void omap_init_wdt(void) {}
	#endif

	/-------------------------------------------------------------------------/

	#if defined(CONFIG_HW_RANDOM_OMAP) \|\| defined(CONFIG_HW_RANDOM_OMAP_MODULE)

	#ifdef CONFIG_ARCH_OMAP24XX
	#define OMAP_RNG_BASE 0x480A0000
	#else
	#define OMAP_RNG_BASE 0xfffe5000
	#endif

	static struct resource rng_resources[] = {
	{
	.start = OMAP_RNG_BASE,
	.end = OMAP_RNG_BASE + 0x4f,
	.flags = IORESOURCE_MEM,
	},
	};

	static struct platform_device omap_rng_device = {
	.name = "omap_rng",
	.id = -1,
	.num_resources = ARRAY_SIZE(rng_resources),
	.resource = rng_resources,
	};

	static void omap_init_rng(void)
	{
	(void) platform_device_register(&omap_rng_device);
	}
	#else
	static inline void omap_init_rng(void) {}
	#endif

	/*
	* This gets called after board-specific INIT_MACHINE, and initializes most
	* on-chip peripherals accessible on this board (except for few like USB):
	*
	* (a) Does any "standard config" pin muxing needed. Board-specific
	* code will have muxed GPIO pins and done "nonstandard" setup;
	* that code could live in the boot loader.
	* (b) Populating board-specific platform_data with the data drivers
	* rely on to handle wiring variations.
	* (c) Creating platform devices as meaningful on this board and
	* with this kernel configuration.
	*
	* Claiming GPIOs, and setting their direction and initial values, is the
	* responsibility of the device drivers. So is responding to probe().
	*
	* Board-specific knowlege like creating devices or pin setup is to be
	* kept out of drivers as much as possible. In particular, pin setup
	* may be handled by the boot loader, and drivers should expect it will
	* normally have been done by the time they're probed.
	*/
	static int __init omap_init_devices(void)
	{
	/* please keep these calls, and their implementations above,
	* in alphabetical order so they're easier to sort through.
	*/
	omap_init_dsp();
	omap_init_kp();
	omap_init_uwire();
	omap_init_wdt();
	omap_init_rng();
	return 0;
	}
	arch_initcall(omap_init_devices);