/*
   * 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/gpio.h>

  #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 <linux/memblock.h>

  #include <mach/hardware.h>

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

  #include <asm/memblock.h>

  #include <plat/tc.h>

  #include <plat/board.h>
  #include <plat/mmc.h>

  #include <plat/menelaus.h>

  #include <plat/omap44xx.h>

  #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_TIDSPBRIDGE) || defined(CONFIG_TIDSPBRIDGE_MODULE)
  
  static phys_addr_t omap_dsp_phys_mempool_base;
  
  void __init omap_dsp_reserve_sdram_memblock(void)
  {
  	phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
  	phys_addr_t paddr;
  
  	if (!size)
  		return;

  	paddr = arm_memblock_steal(size, SZ_1M);

  	if (!paddr) {
  		pr_err("%s: failed to reserve %x bytes
  ",
  				__func__, size);
  		return;
  	}
  
  	omap_dsp_phys_mempool_base = paddr;
  }
  
  phys_addr_t omap_dsp_get_mempool_base(void)
  {
  	return omap_dsp_phys_mempool_base;
  }
  EXPORT_SYMBOL(omap_dsp_get_mempool_base);
  #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 knowledge 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_uwire();

  	return 0;
  }
  arch_initcall(omap_init_devices);