154 lines
4.9 KiB
ArmAsm
154 lines
4.9 KiB
ArmAsm
/*
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* Copyright (C) 2003 Embedded Edge, LLC
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* Dan Malek <dan@embeddededge.com>
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* Copied from ADS85xx.
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* Updates for Silicon Tx GP3 8560. We only support 32-bit flash
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* and DDR with SPD EEPROM configuration.
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*
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* Copyright (C) 2002,2003, Motorola Inc.
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* Xianghua Xiao <X.Xiao@motorola.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <ppc_asm.tmpl>
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#include <ppc_defs.h>
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#include <asm/cache.h>
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#include <asm/mmu.h>
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#include <config.h>
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#include <mpc85xx.h>
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#define entry_start \
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mflr r1 ; \
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bl 0f ;
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#define entry_end \
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0: mflr r0 ; \
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mtlr r1 ; \
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blr ;
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/* TLB1 entries configuration: */
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.section .bootpg, "ax"
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.globl tlb1_entry
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tlb1_entry:
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entry_start
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/* If RAMBOOT, we are testing and the BDI has set up
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* much of the MMU already.
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* TLB 4,5 SDRAM
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* TLB 15 is default CCSRBAR.
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*/
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.long 0x09 /* the following data table uses a few of 16 TLB entries */
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.long TLB1_MAS0(1,1,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
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.long TLB1_MAS2(((CFG_CCSRBAR>>12) & 0xfffff),0,0,0,0,1,0,1,0)
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.long TLB1_MAS3(((CFG_CCSRBAR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,2,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16M)
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.long TLB1_MAS2(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
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.long TLB1_MAS3(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,3,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
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.long TLB1_MAS2(((CFG_LBC_LCLDEVS_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
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.long TLB1_MAS3(((CFG_LBC_LCLDEVS_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,4,0)
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.long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
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.long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
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.long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,5,0)
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.long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
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.long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
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.long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,6,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M)
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#if defined(CONFIG_RAM_AS_FLASH)
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.long TLB1_MAS2(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
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#else
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.long TLB1_MAS2(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,0,0,0)
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#endif
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.long TLB1_MAS3(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,7,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16K)
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#ifdef CONFIG_L2_INIT_RAM
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.long TLB1_MAS2(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,1,0,0,0,0)
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#else
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.long TLB1_MAS2(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,0,0,0,0,0)
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#endif
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.long TLB1_MAS3(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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.long TLB1_MAS0(1,8,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
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.long TLB1_MAS2(((CFG_PCI_MEM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
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.long TLB1_MAS3(((CFG_PCI_MEM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR)
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.long TLB1_MAS0(1,15,0)
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.long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
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.long TLB1_MAS2(((CFG_CCSRBAR_DEFAULT>>12) & 0xfffff),0,0,0,0,1,0,1,0)
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.long TLB1_MAS3(((CFG_CCSRBAR_DEFAULT>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1)
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#else
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.long TLB1_MAS0(1,15,0)
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.long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
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.long TLB1_MAS2(0,0,0,0,0,0,0,0,0)
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.long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1)
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#endif
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entry_end
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/* LAW(Local Access Window) configuration:
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* 0000_0000-8000_0000: Up to 2G DDR
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* f000_0000-f3ff_ffff: PCI(256M)
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* f400_0000-f7ff_ffff: RapidIO(128M)
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* f800_0000-ffff_ffff: localbus(128M)
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* f800_0000-fbff_ffff: LBC SDRAM(64M)
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* fc00_0000-fcff_ffff: LBC BCSR (1M, Chip select 1)
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* fdf0_0000-fdff_ffff: CCSRBAR(1M)
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* ff00_0000-ffff_ffff: Flash(16M)
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* We don't need a local window for CCSRBAR and flash because they
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* reside in their default mapped spaces.
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*/
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#define LAWBAR0 0
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#define LAWAR0 ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_2G)) & ~LAWAR_EN)
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#define LAWBAR1 ((CFG_PCI_MEM_BASE>>12) & 0xfffff)
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#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_256M))
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#if !defined(CONFIG_RAM_AS_FLASH)
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#define LAWBAR2 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff)
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#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M))
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#else
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#define LAWBAR2 0
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#define LAWAR2 ((LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)
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#endif
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.section .bootpg, "ax"
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.globl law_entry
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law_entry:
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entry_start
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.long 0x03
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.long LAWBAR0,LAWAR0,LAWBAR1,LAWAR1,LAWBAR2,LAWAR2
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entry_end
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