text: /*
   * 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 <linux/slab.h>
  
  #include <mach/hardware.h>
  #include <asm/mach-types.h>
  #include <asm/mach/map.h>
  
  #include <plat/tc.h>
  #include <plat/control.h>
  #include <plat/board.h>
  #include <plat/mmc.h>
  #include <mach/gpio.h>
  #include <plat/menelaus.h>
  #include <plat/mcbsp.h>
  #include <plat/omap44xx.h>
  
  /*-------------------------------------------------------------------------*/
  
  #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_SND_OMAP_SOC_MCPDM) || \
  		defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE)
  
  static struct resource mcpdm_resources[] = {
  	{
  		.name		= "mcpdm_mem",
  		.start		= OMAP44XX_MCPDM_BASE,
  		.end		= OMAP44XX_MCPDM_BASE + SZ_4K,
  		.flags		= IORESOURCE_MEM,
  	},
  	{
  		.name		= "mcpdm_irq",
  		.start		= OMAP44XX_IRQ_MCPDM,
  		.end		= OMAP44XX_IRQ_MCPDM,
  		.flags		= IORESOURCE_IRQ,
  	},
  };
  
  static struct platform_device omap_mcpdm_device = {
  	.name		= "omap-mcpdm",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(mcpdm_resources),
  	.resource	= mcpdm_resources,
  };
  
  static void omap_init_mcpdm(void)
  {
  	(void) platform_device_register(&omap_mcpdm_device);
  }
  #else
  static inline void omap_init_mcpdm(void) {}
  #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 device handle to board setup code */
  	data->dev = &pdev->dev;
  	return 0;
  
  fail:
  	platform_device_put(pdev);
  	return ret;
  }
  
  #endif
  
  /*-------------------------------------------------------------------------*/
  
  #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
  
  #ifdef CONFIG_ARCH_OMAP2
  #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
  
  /*-------------------------------------------------------------------------*/
  
  /* 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 if (cpu_is_omap44xx())
  		wdt_resources[0].start = 0x4a314000;
  	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
  
  /*
   * 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_rng();
  	omap_init_mcpdm();
  	omap_init_uwire();
  	omap_init_wdt();
  	return 0;
  }
  arch_initcall(omap_init_devices);
  