board/sbc8548/tlb.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/mmu.h>
  28
  29 struct fsl_e_tlb_entry tlb_table[] = {
  30         /* TLB 0 - for temp stack in cache */
  31         SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR, CFG_INIT_RAM_ADDR,
  32                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  33                       0, 0, BOOKE_PAGESZ_4K, 0),
  34         SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 4 * 1024 , CFG_INIT_RAM_ADDR + 4 * 1024,
  35                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  36                       0, 0, BOOKE_PAGESZ_4K, 0),
  37         SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 8 * 1024 , CFG_INIT_RAM_ADDR + 8 * 1024,
  38                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  39                       0, 0, BOOKE_PAGESZ_4K, 0),
  40         SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 12 * 1024 , CFG_INIT_RAM_ADDR + 12 * 1024,
  41                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  42                       0, 0, BOOKE_PAGESZ_4K, 0),
  43
  44         /*
  45          * TLB 0:       16M     Non-cacheable, guarded
  46          * 0xff800000   16M     TLB for 8MB FLASH
  47          * Out of reset this entry is only 4K.
  48          */
  49         SET_TLB_ENTRY(1, CFG_FLASH_BASE, CFG_FLASH_BASE,
  50                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  51                       0, 0, BOOKE_PAGESZ_16M, 1),
  52
  53         /*
  54          * TLB 1:       256M    Non-cacheable, guarded
  55          * 0x80000000   256M    PCI1 MEM First half
  56          */
  57         SET_TLB_ENTRY(1, CFG_PCI1_MEM_PHYS, CFG_PCI1_MEM_PHYS,
  58                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  59                       0, 1, BOOKE_PAGESZ_256M, 1),
  60
  61         /*
  62          * TLB 2:       256M    Non-cacheable, guarded
  63          * 0x90000000   256M    PCI1 MEM Second half
  64          */
  65         SET_TLB_ENTRY(1, CFG_PCI1_MEM_PHYS + 0x10000000, CFG_PCI1_MEM_PHYS + 0x10000000,
  66                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  67                       0, 2, BOOKE_PAGESZ_256M, 1),
  68
  69         /*
  70          * TLB 3:       256M Cacheable, non-guarded
  71          * 0x0          256M DDR SDRAM
  72          */
  73         #if !defined(CONFIG_SPD_EEPROM)
  74         SET_TLB_ENTRY(1, CFG_DDR_SDRAM_BASE, CFG_DDR_SDRAM_BASE,
  75                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  76                       0, 3, BOOKE_PAGESZ_256M, 1),
  77         #endif
  78
  79         /*
  80          * TLB 4:       64M     Non-cacheable, guarded
  81          * 0xe0000000   1M      CCSRBAR
  82          * 0xe2000000   16M     PCI1 IO
  83          */
  84         SET_TLB_ENTRY(1, CFG_CCSRBAR, CFG_CCSRBAR_PHYS,
  85                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  86                       0, 4, BOOKE_PAGESZ_64M, 1),
  87
  88         /*
  89          * TLB 5:       64M     Cacheable, non-guarded
  90          * 0xf0000000   64M     LBC SDRAM
  91          */
  92         SET_TLB_ENTRY(1, CFG_LBC_SDRAM_BASE, CFG_LBC_SDRAM_BASE,
  93                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  94                       0, 5, BOOKE_PAGESZ_64M, 1),
  95
  96         /*
  97          * TLB 6:       16M     Cacheable, non-guarded
  98          * 0xf8000000   1M      7-segment LED display
  99          * 0xf8100000   1M      User switches
 100          * 0xf8300000   1M      Board revision
 101          * 0xf8b00000   1M      EEPROM
 102          */
 103         SET_TLB_ENTRY(1, CFG_EPLD_BASE, CFG_EPLD_BASE,
 104                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 105                       0, 6, BOOKE_PAGESZ_16M, 1),
 106 };
 107
 108 int num_tlb_entries = ARRAY_SIZE(tlb_table);