LXR uboot/arch/x86/lib/init

   1/*
   2 * (C) Copyright 2011
   3 * Graeme Russ, <graeme.russ@gmail.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <linux/errno.h>
  10#include <asm/mtrr.h>
  11
  12DECLARE_GLOBAL_DATA_PTR;
  13
  14/* Get the top of usable RAM */
  15__weak ulong board_get_usable_ram_top(ulong total_size)
  16{
  17        return gd->ram_size;
  18}
  19
  20int init_cache_f_r(void)
  21{
  22#if defined(CONFIG_X86_RESET_VECTOR) & !defined(CONFIG_HAVE_FSP)
  23        int ret;
  24
  25        ret = mtrr_commit(false);
  26        /* If MTRR MSR is not implemented by the processor, just ignore it */
  27        if (ret && ret != -ENOSYS)
  28                return ret;
  29#endif
  30        /* Initialise the CPU cache(s) */
  31        return init_cache();
  32}
  33