board/mpc8540eval/law.c

   1 /*
   2  * Copyright 2008 Freescale Semiconductor, Inc.
   3  *
   4  * (C) Copyright 2000
   5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <asm/fsl_law.h>
  28 #include <asm/mmu.h>
  29
  30 /* LAW(Local Access Window) configuration:
  31  * 0000_0000-0800_0000: DDR(128M) -or- larger
  32  * f000_0000-f3ff_ffff: PCI(256M)
  33  * f400_0000-f7ff_ffff: RapidIO(128M)
  34  * f800_0000-ffff_ffff: localbus(128M)
  35  *   f800_0000-fbff_ffff: LBC SDRAM(64M)
  36  *   fc00_0000-fdef_ffff: LBC BCSR,RTC,etc(31M)
  37  *   fdf0_0000-fdff_ffff: CCSRBAR(1M)
  38  *   fe00_0000-ffff_ffff: Flash(32M)
  39  * Note: CCSRBAR and L2-as-SRAM don't need configure Local Access
  40  *       Window.
  41  * Note: If flash is 8M at default position(last 8M),no LAW needed.
  42  */
  43
  44 struct law_entry law_table[] = {
  45 #ifndef CONFIG_SPD_EEPROM
  46         SET_LAW(CFG_DDR_SDRAM_BASE, LAW_SIZE_128M, LAW_TRGT_IF_DDR),
  47 #endif
  48         SET_LAW(CFG_PCI_MEM_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_PCI),
  49 #ifndef CONFIG_RAM_AS_FLASH
  50         SET_LAW(CFG_LBC_SDRAM_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC),
  51 #endif
  52 };
  53
  54 int num_law_entries = ARRAY_SIZE(law_table);