board/lwmon5/init.S

   1 /*
   2  * (C) Copyright 2007
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  *  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
   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 <ppc_asm.tmpl>
  27 #include <config.h>
  28 #include <asm-ppc/mmu.h>
  29
  30 /**************************************************************************
  31  * TLB TABLE
  32  *
  33  * This table is used by the cpu boot code to setup the initial tlb
  34  * entries. Rather than make broad assumptions in the cpu source tree,
  35  * this table lets each board set things up however they like.
  36  *
  37  *  Pointer to the table is returned in r1
  38  *
  39  *************************************************************************/
  40         .section .bootpg,"ax"
  41         .globl tlbtab
  42
  43 tlbtab:
  44         tlbtab_start
  45
  46         /*
  47          * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
  48          * speed up boot process. It is patched after relocation to enable SA_I
  49          */
  50         tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G)
  51
  52         /*
  53          * TLB entries for SDRAM are not needed on this platform.
  54          * They are dynamically generated in the SPD DDR(2) detection
  55          * routine.
  56          */
  57
  58 #ifdef CONFIG_SYS_INIT_RAM_DCACHE
  59         /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
  60         tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_4K, CONFIG_SYS_INIT_RAM_ADDR, 0, AC_R|AC_W|AC_X|SA_G)
  61 #endif
  62
  63         /* TLB-entry for PCI Memory */
  64         tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, CONFIG_SYS_PCI_MEMBASE, 1, AC_R|AC_W|SA_G|SA_I)
  65         tlbentry(CONFIG_SYS_PCI_MEMBASE1, SZ_256M, CONFIG_SYS_PCI_MEMBASE1, 1, AC_R|AC_W|SA_G|SA_I)
  66         tlbentry(CONFIG_SYS_PCI_MEMBASE2, SZ_256M, CONFIG_SYS_PCI_MEMBASE2, 1, AC_R|AC_W|SA_G|SA_I)
  67         tlbentry(CONFIG_SYS_PCI_MEMBASE3, SZ_256M, CONFIG_SYS_PCI_MEMBASE3, 1, AC_R|AC_W|SA_G|SA_I)
  68
  69         /* TLB-entry for the FPGA Chip select 2 */
  70         tlbentry(CONFIG_SYS_FPGA_BASE_0, SZ_1M, CONFIG_SYS_FPGA_BASE_0, 1, AC_R|AC_W|AC_X|SA_I|SA_G)
  71
  72         /* TLB-entry for the FPGA Chip select 3 */
  73         tlbentry(CONFIG_SYS_FPGA_BASE_1, SZ_1M, CONFIG_SYS_FPGA_BASE_1, 1,AC_R|AC_W|AC_X|SA_I|SA_G)
  74
  75         /* TLB-entry for the LIME Controller */
  76         tlbentry(CONFIG_SYS_LIME_BASE_0, SZ_16M, CONFIG_SYS_LIME_BASE_0, 1, AC_R|AC_W|AC_X|SA_I|SA_G)
  77         tlbentry(CONFIG_SYS_LIME_BASE_1, SZ_16M, CONFIG_SYS_LIME_BASE_1, 1, AC_R|AC_W|AC_X|SA_I|SA_G)
  78         tlbentry(CONFIG_SYS_LIME_BASE_2, SZ_16M, CONFIG_SYS_LIME_BASE_2, 1, AC_R|AC_W|AC_X|SA_I|SA_G)
  79         tlbentry(CONFIG_SYS_LIME_BASE_3, SZ_16M, CONFIG_SYS_LIME_BASE_3, 1, AC_R|AC_W|AC_X|SA_I|SA_G)
  80
  81         /* TLB-entry for Internal Registers & OCM */
  82         tlbentry(0xe0000000, SZ_16M, 0xe0000000, 0,  AC_R|AC_W|AC_X|SA_I)
  83
  84         /*TLB-entry PCI registers*/
  85         tlbentry(0xEEC00000, SZ_1K, 0xEEC00000, 1,  AC_R|AC_W|AC_X|SA_G|SA_I)
  86
  87         /* TLB-entry for peripherals */
  88         tlbentry(0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
  89
  90         tlbtab_end