init.S 2.6 KB

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  1. /*
  2. * (C) Copyright 2009-2010
  3. * Stefan Roese, DENX Software Engineering, sr@denx.de.
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. #include <ppc_asm.tmpl>
  24. #include <config.h>
  25. #include <asm/mmu.h>
  26. /*
  27. * TLB TABLE
  28. *
  29. * This table is used by the cpu boot code to setup the initial tlb
  30. * entries. Rather than make broad assumptions in the cpu source tree,
  31. * this table lets each board set things up however they like.
  32. *
  33. * Pointer to the table is returned in r1
  34. *
  35. */
  36. .section .bootpg,"ax"
  37. .globl tlbtab
  38. tlbtab:
  39. tlbtab_start
  40. /*
  41. * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to
  42. * use the speed up boot process. It is patched after relocation to
  43. * enable SA_I.
  44. */
  45. tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
  46. 4, AC_RWX | SA_G) /* TLB 0 */
  47. /*
  48. * TLB entries for SDRAM are not needed on this platform.
  49. * They are dynamically generated in the SPD DDR(2) detection
  50. * routine.
  51. */
  52. tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_256K, 0x00000000, 4,
  53. AC_RWX | SA_I)
  54. tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_4K, 0xF0000000, 4,
  55. AC_RW | SA_IG)
  56. tlbentry(CONFIG_SYS_ACE_BASE, SZ_1K,
  57. CONFIG_SYS_ACE_BASE_PHYS_L, CONFIG_SYS_ACE_BASE_PHYS_H,
  58. AC_RW | SA_IG)
  59. tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xC,
  60. AC_RW | SA_IG)
  61. tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x10000000, 0xC,
  62. AC_RW | SA_IG)
  63. tlbentry(CONFIG_SYS_PCIE_MEMBASE, SZ_256M, 0xB0000000, 0xD,
  64. AC_RW | SA_IG)
  65. tlbentry(CONFIG_SYS_PCIE0_CFGBASE, SZ_16M, 0x00000000, 0xD,
  66. AC_RW | SA_IG)
  67. tlbentry(CONFIG_SYS_PCIE1_CFGBASE, SZ_16M, 0x20000000, 0xD,
  68. AC_RW | SA_IG)
  69. tlbentry(CONFIG_SYS_PCIE2_CFGBASE, SZ_16M, 0x40000000, 0xD,
  70. AC_RW | SA_IG)
  71. tlbentry(CONFIG_SYS_PCIE0_XCFGBASE, SZ_1K, 0x10000000, 0xD,
  72. AC_RW | SA_IG)
  73. tlbentry(CONFIG_SYS_PCIE1_XCFGBASE, SZ_1K, 0x30000000, 0xD,
  74. AC_RW | SA_IG)
  75. tlbentry(CONFIG_SYS_PCIE2_XCFGBASE, SZ_1K, 0x50000000, 0xD,
  76. AC_RW | SA_IG)
  77. tlbtab_end