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2146cf5682
u-boot-brain/board/sbc8560/init.S
Kumar Gala 2146cf5682 Reworked FSL Book-E TLB macros to be more readable 
The old macros made it difficult to know what WIMGE and perm bits
were set for a TLB entry.  Actually use the bit masks for these items
since they are only a single bit.

Also moved the macros into mmu.h out of e500.h since they aren't specific
to e500.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-09 16:25:03 -06:00

166 lines
5.3 KiB
ArmAsm
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/*
* Copyright (C) 2002,2003, Motorola Inc.
* Xianghua Xiao <X.Xiao@motorola.com>
*
* (C) Copyright 2004 Wind River Systems Inc <www.windriver.com>.
* Added support for Wind River SBC8560 board
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
#include <asm/cache.h>
#include <asm/mmu.h>
#include <config.h>
#include <mpc85xx.h>
#define entry_start \
mflr r1 ; \
bl 0f ;
#define entry_end \
0: mflr r0 ; \
mtlr r1 ; \
blr ;
/* LAW(Local Access Window) configuration:
* 0000_0000-0800_0000: DDR(512M) -or- larger
* c000_0000-cfff_ffff: PCI(256M)
* d000_0000-dfff_ffff: RapidIO(256M)
* e000_0000-ffff_ffff: localbus(512M)
* e000_0000-e3ff_ffff: LBC 64M, 32-bit flash on CS6
* e400_0000-e7ff_ffff: LBC 64M, 32-bit flash on CS1
* e800_0000-efff_ffff: LBC 128M, nothing here
* f000_0000-f3ff_ffff: LBC 64M, SDRAM on CS3
* f400_0000-f7ff_ffff: LBC 64M, SDRAM on CS4
* f800_0000-fdff_ffff: LBC 64M, nothing here
* fc00_0000-fcff_ffff: LBC 16M, CSR,RTC,UART,etc on CS5
* fd00_0000-fdff_ffff: LBC 16M, nothing here
* fe00_0000-feff_ffff: LBC 16M, nothing here
* ff00_0000-ff6f_ffff: LBC 7M, nothing here
* ff70_0000-ff7f_ffff: CCSRBAR 1M
* ff80_0000-ffff_ffff: LBC 8M, 8-bit flash on CS0
* Note: CCSRBAR and L2-as-SRAM don't need configure Local Access
* Window.
* Note: If flash is 8M at default position(last 8M),no LAW needed.
*/
#if !defined(CONFIG_SPD_EEPROM)
#define LAWBAR0 ((CFG_DDR_SDRAM_BASE>>12) & 0xfffff)
#define LAWAR0 (LAWAR_EN | LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_512M))
#else
#define LAWBAR0 0
#define LAWAR0 ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_512M)) & ~LAWAR_EN)
#endif
#define LAWBAR1 ((CFG_PCI_MEM_BASE>>12) & 0xfffff)
#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_256M))
#define LAWBAR2 ((0xe0000000>>12) & 0xfffff)
#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_512M))
.section .bootpg, "ax"
.globl law_entry
law_entry:
entry_start
.long 0x03
.long LAWBAR0,LAWAR0,LAWBAR1,LAWAR1,LAWBAR2,LAWAR2
entry_end
/* TLB1 entries configuration: */
.section .bootpg, "ax"
.globl tlb1_entry
tlb1_entry:
entry_start
.long 0x08 /* the following data table uses a few of 16 TLB entries */
/* TLB for CCSRBAR (IMMR) */
.long FSL_BOOKE_MAS0(1,1,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
.long FSL_BOOKE_MAS2(CFG_CCSRBAR,(MAS2_I|MAS2_G))
.long FSL_BOOKE_MAS3(CFG_CCSRBAR,0,(MAS3_SX|MAS3_SW|MAS3_SR))
/* TLB for Local Bus stuff, just map the whole 512M */
/* note that the LBC SDRAM is cache-inhibit and guarded, like everything else */
.long FSL_BOOKE_MAS0(1,2,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
.long FSL_BOOKE_MAS2(0xe0000000,(MAS2_I|MAS2_G))
.long FSL_BOOKE_MAS3(0xe0000000,0,(MAS3_SX|MAS3_SW|MAS3_SR))
.long FSL_BOOKE_MAS0(1,3,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
.long FSL_BOOKE_MAS2(0xf0000000,(MAS2_I|MAS2_G))
.long FSL_BOOKE_MAS3(0xf0000000,0,(MAS3_SX|MAS3_SW|MAS3_SR))
#if !defined(CONFIG_SPD_EEPROM)
.long FSL_BOOKE_MAS0(1,4,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
.long FSL_BOOKE_MAS2(CFG_DDR_SDRAM_BASE,0)
.long FSL_BOOKE_MAS3(CFG_DDR_SDRAM_BASE,0,(MAS3_SX|MAS3_SW|MAS3_SR))
.long FSL_BOOKE_MAS0(1,5,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
.long FSL_BOOKE_MAS2(CFG_DDR_SDRAM_BASE+0x10000000,0)
.long FSL_BOOKE_MAS3(CFG_DDR_SDRAM_BASE+0x10000000,0,(MAS3_SX|MAS3_SW|MAS3_SR))
#else
.long FSL_BOOKE_MAS0(1,4,0)
.long FSL_BOOKE_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
.long FSL_BOOKE_MAS2(0,0)
.long FSL_BOOKE_MAS3(0,0,(MAS3_SX|MAS3_SW|MAS3_SR))
.long FSL_BOOKE_MAS0(1,5,0)
.long FSL_BOOKE_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
.long FSL_BOOKE_MAS2(0,0)
.long FSL_BOOKE_MAS3(0,0,(MAS3_SX|MAS3_SW|MAS3_SR))
#endif
.long FSL_BOOKE_MAS0(1,6,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_16K)
#ifdef CONFIG_L2_INIT_RAM
.long FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR,0,0,0,1,0,0,0,0)
#else
.long FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR,0)
#endif
.long FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR,0,(MAS3_SX|MAS3_SW|MAS3_SR))
.long FSL_BOOKE_MAS0(1,7,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_256M)
.long FSL_BOOKE_MAS2(CFG_PCI_MEM_BASE,(MAS2_I|MAS2_G))
.long FSL_BOOKE_MAS3(CFG_PCI_MEM_BASE,0,(MAS3_SX|MAS3_SW|MAS3_SR))
#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR)
.long FSL_BOOKE_MAS0(1,15,0)
.long FSL_BOOKE_MAS1(1,1,0,0,BOOKE_PAGESZ_1M)
.long FSL_BOOKE_MAS2(CFG_CCSRBAR_DEFAULT,(MAS2_I|MAS2_G))
.long FSL_BOOKE_MAS3(CFG_CCSRBAR_DEFAULT,0,(MAS3_SX|MAS3_SW|MAS3_SR))
#else
.long FSL_BOOKE_MAS0(1,15,0)
.long FSL_BOOKE_MAS1(0,0,0,0,BOOKE_PAGESZ_1M)
.long FSL_BOOKE_MAS2(0,0)
.long FSL_BOOKE_MAS3(0,0,(MAS3_SX|MAS3_SW|MAS3_SR))
#endif
entry_end
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