src/soc/intel/baytrail/memmap.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2013 Google, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <arch/io.h>
  17 #include <cbmem.h>
  18 #include <soc/iosf.h>
  19 #include <soc/smm.h>
  20
  21 uintptr_t smm_region_start(void)
  22 {
  23         return (iosf_bunit_read(BUNIT_SMRRL) << 20);
  24 }
  25
  26 void *cbmem_top(void)
  27 {
  28         return (void *) smm_region_start();
  29 }