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/*
* Copyright 2004 Freescale Semiconductor.
* Jeff Brown (jeffrey@freescale.com)
* 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
* 0xe000_0000 0xe000_ffff CCSR 1M
* 0xe200_0000 0xe2ff_ffff PCI1 IO 16M
* 0xe300_0000 0xe3ff_ffff PCI2 IO 16M
* 0xf000_0000 0xf7ff_ffff SDRAM 128M
* 0xf800_0000 0xf80f_ffff BCSR 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)) */
#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_BASE>>12) & 0xffffff)
#define LAWAR5 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_16M))
#define LAWBAR6 ((CFG_PCI2_IO_BASE>>12) & 0xffffff)
/*#define LAWAR6 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_16M)) */
#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))
/*
* Rapid IO at 0xc000_0000 for 512 M
*/
/*
#ifdef CFG_INIT_RAM_LOCK
#define LAWBAR7 ((CFG_RIO_MEM_BASE>>12) & 0xffffff)
#define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))
#endif
*/
/*
* Stack at 0xfc00_0000 for 32M on LBC
*/
#if !defined(CFG_INIT_RAM_LOCK)
#define LAWBAR7 ((CFG_INIT_RAM_ADDR>>12) & 0xffffff)
#define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M))
#endif
.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)
blr
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