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  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <asm/mmu.h>
  12
  13 struct fsl_e_tlb_entry tlb_table[] = {
  14         /* TLB 0 - for temp stack in cache */
  15         SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
  16                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  17                       0, 0, BOOKE_PAGESZ_4K, 0),
  18         SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
  19                       CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
  20                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  21                       0, 0, BOOKE_PAGESZ_4K, 0),
  22         SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
  23                       CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
  24                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  25                       0, 0, BOOKE_PAGESZ_4K, 0),
  26         SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
  27                       CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
  28                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  29                       0, 0, BOOKE_PAGESZ_4K, 0),
  30
  31         /*
  32          * TLB 0:       64M     Non-cacheable, guarded
  33          * 0xfc000000   56M     unused
  34          * 0xff800000   8M      boot FLASH
  35          *      .... or ....
  36          * 0xfc000000   64M     user flash
  37          *
  38          * Out of reset this entry is only 4K.
  39          */
  40         SET_TLB_ENTRY(1, 0xfc000000, 0xfc000000,
  41                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  42                       0, 0, BOOKE_PAGESZ_64M, 1),
  43
  44         /*
  45          * TLB 1:       1G      Non-cacheable, guarded
  46          * 0x80000000   512M    PCI1 MEM
  47          * 0xa0000000   512M    PCIe MEM
  48          */
  49         SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
  50                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  51                       0, 1, BOOKE_PAGESZ_1G, 1),
  52
  53         /*
  54          * TLB 2:       64M     Non-cacheable, guarded
  55          * 0xe0000000   1M      CCSRBAR
  56          * 0xe2000000   8M      PCI1 IO
  57          * 0xe2800000   8M      PCIe IO
  58          */
  59         SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
  60                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  61                       0, 2, BOOKE_PAGESZ_64M, 1),
  62
  63 #ifdef CONFIG_SYS_LBC_SDRAM_BASE
  64         /*
  65          * TLB 3:       64M     Cacheable, non-guarded
  66          * 0xf0000000   64M     LBC SDRAM First half
  67          */
  68         SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
  69                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  70                       0, 3, BOOKE_PAGESZ_64M, 1),
  71
  72         /*
  73          * TLB 4:       64M     Cacheable, non-guarded
  74          * 0xf4000000   64M     LBC SDRAM Second half
  75          */
  76         SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
  77                       CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
  78                       MAS3_SX|MAS3_SW|MAS3_SR, 0,
  79                       0, 4, BOOKE_PAGESZ_64M, 1),
  80 #endif
  81
  82         /*
  83          * TLB 5:       16M     Cacheable, non-guarded
  84          * 0xf8000000   1M      7-segment LED display
  85          * 0xf8100000   1M      User switches
  86          * 0xf8300000   1M      Board revision
  87          * 0xf8b00000   1M      EEPROM
  88          */
  89         SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE,
  90                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  91                       0, 5, BOOKE_PAGESZ_16M, 1),
  92
  93 #ifndef CONFIG_SYS_ALT_BOOT
  94         /*
  95          * TLB 6:       64M     Non-cacheable, guarded
  96          * 0xec000000   64M     64MB user FLASH
  97          */
  98         SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
  99                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 100                       0, 6, BOOKE_PAGESZ_64M, 1),
 101 #else
 102         /*
 103          * TLB 6:       4M      Non-cacheable, guarded
 104          * 0xef800000   4M      1st 1/2 8MB soldered FLASH
 105          */
 106         SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
 107                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 108                       0, 6, BOOKE_PAGESZ_4M, 1),
 109
 110         /*
 111          * TLB 7:       4M      Non-cacheable, guarded
 112          * 0xefc00000   4M      2nd half 8MB soldered FLASH
 113          */
 114         SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
 115                       CONFIG_SYS_ALT_FLASH + 0x400000,
 116                       MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 117                       0, 7, BOOKE_PAGESZ_4M, 1),
 118 #endif
 119
 120 };
 121
 122 int num_tlb_entries = ARRAY_SIZE(tlb_table);