/* * File: include/asm-blackfin/cplb.h * Based on: include/asm-blackfin/mach-bf537/bf537.h * Author: Robin Getz * * Created: 2000 * Description: Common CPLB definitions for CPLB init * * Modified: * Copyright 2004-2007 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * * 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, see the file COPYING, or write * to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef _CPLB_H #define _CPLB_H # include #define SDRAM_IGENERIC (CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_PORTPRIO) #define SDRAM_IKERNEL (SDRAM_IGENERIC | CPLB_LOCK) #define L1_IMEMORY ( CPLB_USER_RD | CPLB_VALID | CPLB_LOCK) #define SDRAM_INON_CHBL ( CPLB_USER_RD | CPLB_VALID) /*Use the menuconfig cache policy here - CONFIG_BFIN_WT/CONFIG_BFIN_WB*/ #if ANOMALY_05000158 #define ANOMALY_05000158_WORKAROUND 0x200 #else #define ANOMALY_05000158_WORKAROUND 0x0 #endif #define CPLB_COMMON (CPLB_DIRTY | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND) #ifdef CONFIG_BFIN_WB /*Write Back Policy */ #define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_COMMON) #else /*Write Through */ #define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON) #endif #define L1_DMEMORY (CPLB_LOCK | CPLB_COMMON) #define SDRAM_DNON_CHBL (CPLB_COMMON) #define SDRAM_EBIU (CPLB_COMMON) #define SDRAM_OOPS (CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_LOCK | CPLB_DIRTY) #define SIZE_1K 0x00000400 /* 1K */ #define SIZE_4K 0x00001000 /* 4K */ #define SIZE_1M 0x00100000 /* 1M */ #define SIZE_4M 0x00400000 /* 4M */ #define MAX_CPLBS (16 * 2) #define ASYNC_MEMORY_CPLB_COVERAGE ((ASYNC_BANK0_SIZE + ASYNC_BANK1_SIZE + \ ASYNC_BANK2_SIZE + ASYNC_BANK3_SIZE) / SIZE_4M) /* * Number of required data CPLB switchtable entries * MEMSIZE / 4 (we mostly install 4M page size CPLBs * approx 16 for smaller 1MB page size CPLBs for allignment purposes * 1 for L1 Data Memory * possibly 1 for L2 Data Memory * 1 for CONFIG_DEBUG_HUNT_FOR_ZERO * 1 for ASYNC Memory */ #define MAX_SWITCH_D_CPLBS (((CONFIG_MEM_SIZE / 4) + 16 + 1 + 1 + 1 \ + ASYNC_MEMORY_CPLB_COVERAGE) * 2) /* * Number of required instruction CPLB switchtable entries * MEMSIZE / 4 (we mostly install 4M page size CPLBs * approx 12 for smaller 1MB page size CPLBs for allignment purposes * 1 for L1 Instruction Memory * possibly 1 for L2 Instruction Memory * 1 for CONFIG_DEBUG_HUNT_FOR_ZERO */ #define MAX_SWITCH_I_CPLBS (((CONFIG_MEM_SIZE / 4) + 12 + 1 + 1 + 1) * 2) #define CPLB_ENABLE_ICACHE_P 0 #define CPLB_ENABLE_DCACHE_P 1 #define CPLB_ENABLE_DCACHE2_P 2 #define CPLB_ENABLE_CPLBS_P 3 /* Deprecated! */ #define CPLB_ENABLE_ICPLBS_P 4 #define CPLB_ENABLE_DCPLBS_P 5 #define CPLB_ENABLE_ICACHE (1<