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common.c

/*
 * linux/arch/arm/plat-omap/common.c
 *
 * Code common to all OMAP machines.
 * The file is created by Tony Lindgren <tony@atomide.com>
 *
 * Copyright (C) 2009 Texas Instruments
 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/omapfb.h>

#include <plat/common.h>
#include <plat/board.h>
#include <plat/vram.h>
#include <plat/dsp.h>


#define NO_LENGTH_CHECK 0xffffffff

struct omap_board_config_kernel *omap_board_config;
int omap_board_config_size;

static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out)
{
      struct omap_board_config_kernel *kinfo = NULL;
      int i;

      /* Try to find the config from the board-specific structures
       * in the kernel. */
      for (i = 0; i < omap_board_config_size; i++) {
            if (omap_board_config[i].tag == tag) {
                  if (skip == 0) {
                        kinfo = &omap_board_config[i];
                        break;
                  } else {
                        skip--;
                  }
            }
      }
      if (kinfo == NULL)
            return NULL;
      return kinfo->data;
}

const void *__omap_get_config(u16 tag, size_t len, int nr)
{
        return get_config(tag, len, nr, NULL);
}
EXPORT_SYMBOL(__omap_get_config);

const void *omap_get_var_config(u16 tag, size_t *len)
{
        return get_config(tag, NO_LENGTH_CHECK, 0, len);
}
EXPORT_SYMBOL(omap_get_var_config);

void __init omap_reserve(void)
{
      omapfb_reserve_sdram_memblock();
      omap_vram_reserve_sdram_memblock();
      omap_dsp_reserve_sdram_memblock();
}

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