board/freescale/mpc8540ads/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, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
  32                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  33                       0, 0, BOOKE_PAGESZ_4K, 0),
  34         SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024 , CONFIG_SYS_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, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024 , CONFIG_SYS_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, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024 , CONFIG_SYS_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          * 0xff000000   16M     FLASH
  47          * Out of reset this entry is only 4K.
  48          */
  49         SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_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, CONFIG_SYS_PCI1_MEM_PHYS, CONFIG_SYS_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, CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000, CONFIG_SYS_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    Non-cacheable, guarded
  71          * 0xc0000000   256M    Rapid IO MEM First half
  72          */
  73         SET_TLB_ENTRY(1, CONFIG_SYS_RIO_MEM_BASE, CONFIG_SYS_RIO_MEM_BASE,
  74                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  75                       0, 3, BOOKE_PAGESZ_256M, 1),
  76
  77         /*
  78          * TLB 4:       256M    Non-cacheable, guarded
  79          * 0xd0000000   256M    Rapid IO MEM Second half
  80          */
  81         SET_TLB_ENTRY(1, CONFIG_SYS_RIO_MEM_BASE + 0x10000000, CONFIG_SYS_RIO_MEM_BASE + 0x10000000,
  82                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  83                       0, 4, BOOKE_PAGESZ_256M, 1),
  84
  85         /*
  86          * TLB 5:       64M     Non-cacheable, guarded
  87          * 0xe000_0000  1M      CCSRBAR
  88          * 0xe200_0000  16M     PCI1 IO
  89          */
  90         SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
  91                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  92                       0, 5, BOOKE_PAGESZ_64M, 1),
  93
  94         /*
  95          * TLB 6:       64M     Cacheable, non-guarded
  96          * 0xf000_0000  64M     LBC SDRAM
  97          */
  98         SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
  99                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
 100                       0, 6, BOOKE_PAGESZ_64M, 1),
 101
 102         /*
 103          * TLB 7:       16K     Non-cacheable, guarded
 104          * 0xf8000000   16K     BCSR registers
 105          */
 106         SET_TLB_ENTRY(1, CONFIG_SYS_BCSR, CONFIG_SYS_BCSR,
 107                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 108                       0, 7, BOOKE_PAGESZ_16K, 1),
 109
 110 #if !defined(CONFIG_SPD_EEPROM)
 111         /*
 112          * TLB 8, 9:    128M    DDR
 113          * 0x00000000   64M     DDR System memory
 114          * 0x04000000   64M     DDR System memory
 115          * Without SPD EEPROM configured DDR, this must be setup manually.
 116          * Make sure the TLB count at the top of this table is correct.
 117          * Likely it needs to be increased by two for these entries.
 118          */
 119 #error("Update the number of table entries in tlb1_entry")
 120         SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
 121                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
 122                       0, 8, BOOKE_PAGESZ_64M, 1),
 123
 124         SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE + 0x4000000, CONFIG_SYS_DDR_SDRAM_BASE + 0x4000000,
 125                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
 126                       0, 9, BOOKE_PAGESZ_64M, 1),
 127 #endif
 128 };
 129
 130 int num_tlb_entries = ARRAY_SIZE(tlb_table);