/* * Copyright 2004 Freescale Semiconductor. * Jeff Brown * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) * * 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 <mpc86xx.h> /* * LAW(Local Access Window) configuration: * * 0x0000_0000 0x7fff_ffff DDR 2G * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M * 0xa000_0000 0xbfff_ffff PCI2 MEM 512M * 0xc000_0000 0xdfff_ffff RapidIO 512M * 0xe200_0000 0xe2ff_ffff PCI1 IO 16M * 0xe300_0000 0xe3ff_ffff PCI2 IO 16M * 0xf800_0000 0xf80f_ffff CCSRBAR 1M * 0xf810_0000 0xf81f_ffff PIXIS 1M * 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M * * Notes: * CCSRBAR don't need a configured Local Access Window. * If flash is 8M at default position (last 8M), no LAW needed. */ #if !defined(CONFIG_SPD_EEPROM) #define LAWBAR1 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff) #define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_256M)) #else #define LAWBAR1 0 #define LAWAR1 ((LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_512M)) & ~LAWAR_EN) #endif #define LAWBAR2 ((CFG_PCI1_MEM_BASE>>12) & 0xffffff) #define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M)) #define LAWBAR3 ((CFG_PCI2_MEM_BASE>>12) & 0xffffff) #define LAWAR3 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_512M)) /* * This is not so much the SDRAM map as it is the whole localbus map. */ #define LAWBAR4 ((0xf8100000>>12) & 0xffffff) #define LAWAR4 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_2M)) #define LAWBAR5 ((CFG_PCI1_IO_PHYS>>12) & 0xffffff) #define LAWAR5 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_16M)) #define LAWBAR6 ((CFG_PCI2_IO_PHYS>>12) & 0xffffff) #define LAWAR6 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_16M)) #define LAWBAR7 ((0xfe000000 >>12) & 0xffffff) #define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M)) #if !defined(CONFIG_SPD_EEPROM) #define LAWBAR8 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff) #define LAWAR8 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M)) #else #define LAWBAR8 0 #define LAWAR8 ((LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_512M)) & ~LAWAR_EN) #endif #define LAWBAR9 ((CFG_RIO_MEM_PHYS>>12) & 0xfffff) #define LAWAR9 (LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M)) .section .bootpg, "ax" .globl law_entry law_entry: lis r7,CFG_CCSRBAR@h ori r7,r7,CFG_CCSRBAR@l addi r4,r7,0 addi r5,r7,0 /* Skip LAWAR0, start at LAWAR1 */ lis r6,LAWBAR1@h ori r6,r6,LAWBAR1@l stwu r6, 0xc28(r4) lis r6,LAWAR1@h ori r6,r6,LAWAR1@l stwu r6, 0xc30(r5) /* LAWBAR2, LAWAR2 */ lis r6,LAWBAR2@h ori r6,r6,LAWBAR2@l stwu r6, 0x20(r4) lis r6,LAWAR2@h ori r6,r6,LAWAR2@l stwu r6, 0x20(r5) /* LAWBAR3, LAWAR3 */ lis r6,LAWBAR3@h ori r6,r6,LAWBAR3@l stwu r6, 0x20(r4) lis r6,LAWAR3@h ori r6,r6,LAWAR3@l stwu r6, 0x20(r5) /* LAWBAR4, LAWAR4 */ lis r6,LAWBAR4@h ori r6,r6,LAWBAR4@l stwu r6, 0x20(r4) lis r6,LAWAR4@h ori r6,r6,LAWAR4@l stwu r6, 0x20(r5) /* LAWBAR5, LAWAR5 */ lis r6,LAWBAR5@h ori r6,r6,LAWBAR5@l stwu r6, 0x20(r4) lis r6,LAWAR5@h ori r6,r6,LAWAR5@l stwu r6, 0x20(r5) /* LAWBAR6, LAWAR6 */ lis r6,LAWBAR6@h ori r6,r6,LAWBAR6@l stwu r6, 0x20(r4) lis r6,LAWAR6@h ori r6,r6,LAWAR6@l stwu r6, 0x20(r5) /* LAWBAR7, LAWAR7 */ lis r6,LAWBAR7@h ori r6,r6,LAWBAR7@l stwu r6, 0x20(r4) lis r6,LAWAR7@h ori r6,r6,LAWAR7@l stwu r6, 0x20(r5) /* LAWBAR8, LAWAR8 */ lis r6,LAWBAR8@h ori r6,r6,LAWBAR8@l stwu r6, 0x20(r4) lis r6,LAWAR8@h ori r6,r6,LAWAR8@l stwu r6, 0x20(r5) /* LAWBAR9, LAWAR9 */ lis r6,LAWBAR9@h ori r6,r6,LAWBAR9@l stwu r6, 0x20(r4) lis r6,LAWAR9@h ori r6,r6,LAWAR9@l stwu r6, 0x20(r5) blr