board/freescale/mpc8540ads/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 /*
  31  * LAW(Local Access Window) configuration:
  32  *
  33  * 0x0000_0000     0x7fff_ffff     DDR                     2G
  34  * 0x8000_0000     0x9fff_ffff     PCI1 MEM                512M
  35  * 0xc000_0000     0xdfff_ffff     RapidIO                 512M
  36  * 0xe000_0000     0xe000_ffff     CCSR                    1M
  37  * 0xe200_0000     0xe2ff_ffff     PCI1 IO                 16M
  38  * 0xf000_0000     0xf7ff_ffff     SDRAM                   128M
  39  * 0xf800_0000     0xf80f_ffff     BCSR                    1M
  40  * 0xff00_0000     0xffff_ffff     FLASH (boot bank)       16M
  41  *
  42  * Notes:
  43  *    CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
  44  *    If flash is 8M at default position (last 8M), no LAW needed.
  45  */
  46
  47 struct law_entry law_table[] = {
  48 #ifndef CONFIG_SPD_EEPROM
  49         SET_LAW(CFG_DDR_SDRAM_BASE, LAW_SIZE_128M, LAW_TRGT_IF_DDR),
  50 #endif
  51         SET_LAW(CFG_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI),
  52         /* This is not so much the SDRAM map as it is the whole localbus map. */
  53         SET_LAW(CFG_LBC_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
  54         SET_LAW(CFG_PCI1_IO_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_PCI),
  55         SET_LAW(CFG_RIO_MEM_BASE, LAWAR_SIZE_512M, LAW_TRGT_IF_RIO),
  56 };
  57
  58 int num_law_entries = ARRAY_SIZE(law_table);