diff options
Diffstat (limited to 'board/sbc8641d/init.S')
| -rw-r--r-- | board/sbc8641d/init.S | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/board/sbc8641d/init.S b/board/sbc8641d/init.S new file mode 100644 index 0000000..c151d7e --- /dev/null +++ b/board/sbc8641d/init.S @@ -0,0 +1,192 @@ +/* + * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com> + * Copyright 2007 Embedded Specialties, Inc. + * Joe Hamman joe.hamman@embeddedspecialties.com + * + * 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 0x0fff_ffff DDR1 256M + * 0x1000_0000 0x1fff_ffff DDR2 256M + * 0xe000_0000 0xffff_ffff LBC 512M + * + * Notes: + * CCSRBAR doesn't need a configured Local Access Window. + * If flash is 8M at default position (last 8M), no LAW needed. + */ + +# DDR Bank 1 +# #define LAWBAR1 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff) +# #define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_256M)) + +# DDR Bank 2 +# #define LAWBAR2 ((CFG_DDR_SDRAM_BASE2>>12) & 0xffffff) +# #define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M)) + +# LBC +# #define LAWBAR3 ((0xe0000000>>12) & 0xffffff) +# #define LAWAR3 (LAWAR_EN & (LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_512M))) + +/* + * LAW (Local Access Window) configuration: + * + * 0x0000_0000 DDR 256M + * 0x1000_0000 DDR2 256M + * 0x8000_0000 PCI1 MEM 512M + * 0xa000_0000 PCI2 MEM 512M + * 0xc000_0000 RapidIO 512M + * 0xe200_0000 PCI1 IO 16M + * 0xe300_0000 PCI2 IO 16M + * 0xf800_0000 CCSRBAR 2M + * 0xfe00_0000 FLASH (boot bank) 32M + * + */ + +#define LAWBAR1 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff) +#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_256M)) + +#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 LAWBAR4 ((0xf8000000>>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 LAWBAR7 ((0xfe000000 >>12) & 0xffffff) +#define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M)) + +#define LAWBAR8 ((CFG_DDR_SDRAM_BASE2>>12) & 0xffffff) +#define LAWAR8 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M)) + +#define LAWBAR9 ((CFG_RIO_MEM_BASE>>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 |