board/mpc8540eval/init.S

   1 /*
   2 * Copyright (C) 2002,2003, Motorola Inc.
   3 * Xianghua Xiao <X.Xiao@motorola.com>
   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
  24 #include <ppc_asm.tmpl>
  25 #include <ppc_defs.h>
  26 #include <asm/cache.h>
  27 #include <asm/mmu.h>
  28 #include <config.h>
  29 #include <mpc85xx.h>
  30
  31 #define entry_start \
  32         mflr    r1      ;       \
  33         bl      0f      ;
  34
  35 #define entry_end \
  36 0:      mflr    r0      ;       \
  37         mtlr    r1      ;       \
  38         blr             ;
  39
  40 /* TLB1 entries configuration: */
  41
  42         .section        .bootpg, "ax"
  43         .globl  tlb1_entry
  44 tlb1_entry:
  45         entry_start
  46
  47         .long 0x0a      /* the following data table uses a few of 16 TLB entries */
  48
  49         .long TLB1_MAS0(1,1,0)
  50         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
  51         .long TLB1_MAS2(((CFG_CCSRBAR>>12) & 0xfffff),0,0,0,0,1,0,1,0)
  52         .long TLB1_MAS3(((CFG_CCSRBAR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
  53
  54   #if defined(CFG_FLASH_PORT_WIDTH_16)
  55         .long TLB1_MAS0(1,2,0)
  56         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_4M)
  57         .long TLB1_MAS2(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
  58         .long TLB1_MAS3(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
  59
  60         .long TLB1_MAS0(1,3,0)
  61         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_4M)
  62         .long TLB1_MAS2((((CFG_FLASH_BASE+0x400000)>>12)&0xfffff),0,0,0,0,1,0,1,0)
  63         .long TLB1_MAS3((((CFG_FLASH_BASE+0x400000)>>12)&0xfffff),0,0,0,0,0,1,0,1,0,1)
  64   #else
  65         .long TLB1_MAS0(1,2,0)
  66         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16M)
  67         .long TLB1_MAS2(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
  68         .long TLB1_MAS3(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
  69
  70         .long TLB1_MAS0(1,3,0)
  71         .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
  72         .long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
  73         .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
  74   #endif
  75
  76   #if !defined(CONFIG_SPD_EEPROM)
  77         .long TLB1_MAS0(1,4,0)
  78         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M)
  79         .long TLB1_MAS2(((CFG_DDR_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,0,0,0)
  80         .long TLB1_MAS3(((CFG_DDR_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
  81
  82         .long TLB1_MAS0(1,5,0)
  83         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M)
  84         .long TLB1_MAS2((((CFG_DDR_SDRAM_BASE+0x4000000)>>12) & 0xfffff),0,0,0,0,0,0,0,0)
  85         .long TLB1_MAS3((((CFG_DDR_SDRAM_BASE+0x4000000)>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
  86   #else
  87         .long TLB1_MAS0(1,4,0)
  88         .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
  89         .long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
  90         .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
  91
  92         .long TLB1_MAS0(1,5,0)
  93         .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
  94         .long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
  95         .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
  96   #endif
  97
  98         .long TLB1_MAS0(1,6,0)
  99         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M)
 100   #if defined(CONFIG_RAM_AS_FLASH)
 101         .long TLB1_MAS2(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
 102   #else
 103         .long TLB1_MAS2(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,0,0,0)
 104   #endif
 105         .long TLB1_MAS3(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
 106
 107         .long TLB1_MAS0(1,7,0)
 108         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16K)
 109   #ifdef CONFIG_L2_INIT_RAM
 110         .long TLB1_MAS2(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,1,0,0,0,0)
 111   #else
 112         .long TLB1_MAS2(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,0,0,0,0,0)
 113   #endif
 114         .long TLB1_MAS3(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
 115
 116         .long TLB1_MAS0(1,8,0)
 117         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
 118         .long TLB1_MAS2(((CFG_PCI_MEM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
 119         .long TLB1_MAS3(((CFG_PCI_MEM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
 120
 121         .long TLB1_MAS0(1,9,0)
 122         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16K)
 123         .long TLB1_MAS2(((CFG_BCSR>>12) & 0xfffff),0,0,0,0,1,0,1,0)
 124         .long TLB1_MAS3(((CFG_BCSR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
 125
 126   #if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR)
 127         .long TLB1_MAS0(1,15,0)
 128         .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
 129         .long TLB1_MAS2(((CFG_CCSRBAR_DEFAULT>>12) & 0xfffff),0,0,0,0,1,0,1,0)
 130         .long TLB1_MAS3(((CFG_CCSRBAR_DEFAULT>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
 131   #else
 132         .long TLB1_MAS0(1,15,0)
 133         .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
 134         .long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
 135         .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
 136   #endif
 137         entry_end
 138
 139 /* LAW(Local Access Window) configuration:
 140  * 0000_0000-0800_0000: DDR(128M) -or- larger
 141  * f000_0000-f3ff_ffff: PCI(256M)
 142  * f400_0000-f7ff_ffff: RapidIO(128M)
 143  * f800_0000-ffff_ffff: localbus(128M)
 144  *   f800_0000-fbff_ffff: LBC SDRAM(64M)
 145  *   fc00_0000-fdef_ffff: LBC BCSR,RTC,etc(31M)
 146  *   fdf0_0000-fdff_ffff: CCSRBAR(1M)
 147  *   fe00_0000-ffff_ffff: Flash(32M)
 148  * Note: CCSRBAR and L2-as-SRAM don't need configure Local Access
 149  *       Window.
 150  * Note: If flash is 8M at default position(last 8M),no LAW needed.
 151  */
 152
 153 #if !defined(CONFIG_SPD_EEPROM)
 154 #define LAWBAR0 ((CFG_DDR_SDRAM_BASE>>12) & 0xfffff)
 155 #define LAWAR0  (LAWAR_EN | LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M))
 156 #else
 157 #define LAWBAR0 0
 158 #define LAWAR0  ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)
 159 #endif
 160
 161 #define LAWBAR1 ((CFG_PCI_MEM_BASE>>12) & 0xfffff)
 162 #define LAWAR1  (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_256M))
 163
 164 #if !defined(CONFIG_RAM_AS_FLASH)
 165 #define LAWBAR2 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff)
 166 #define LAWAR2  (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M))
 167 #else
 168 #define LAWBAR2 0
 169 #define LAWAR2 ((LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)
 170 #endif
 171
 172         .section .bootpg, "ax"
 173         .globl  law_entry
 174 law_entry:
 175         entry_start
 176         .long 0x03
 177         .long LAWBAR0,LAWAR0,LAWBAR1,LAWAR1,LAWBAR2,LAWAR2
 178         entry_end