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/*
* File: include/asm-blackfin/cplb.h
* Based on: include/asm-blackfin/mach-bf537/bf537.h
* Author: Robin Getz <rgetz@blackfin.uclinux.org>
*
* 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 <asm/blackfin.h>
#include <asm/mach/anomaly.h>
#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 L2_MEMORY (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<<CPLB_ENABLE_ICACHE_P)
#define CPLB_ENABLE_DCACHE (1<<CPLB_ENABLE_DCACHE_P)
#define CPLB_ENABLE_DCACHE2 (1<<CPLB_ENABLE_DCACHE2_P)
#define CPLB_ENABLE_CPLBS (1<<CPLB_ENABLE_CPLBS_P)
#define CPLB_ENABLE_ICPLBS (1<<CPLB_ENABLE_ICPLBS_P)
#define CPLB_ENABLE_DCPLBS (1<<CPLB_ENABLE_DCPLBS_P)
#define CPLB_ENABLE_ANY_CPLBS CPLB_ENABLE_CPLBS | \
CPLB_ENABLE_ICPLBS | \
CPLB_ENABLE_DCPLBS
#define CPLB_RELOADED 0x0000
#define CPLB_NO_UNLOCKED 0x0001
#define CPLB_NO_ADDR_MATCH 0x0002
#define CPLB_PROT_VIOL 0x0003
#define CPLB_UNKNOWN_ERR 0x0004
#define CPLB_DEF_CACHE CPLB_L1_CHBL | CPLB_WT
#define CPLB_CACHE_ENABLED CPLB_L1_CHBL | CPLB_DIRTY
#define CPLB_I_PAGE_MGMT CPLB_LOCK | CPLB_VALID
#define CPLB_D_PAGE_MGMT CPLB_LOCK | CPLB_ALL_ACCESS | CPLB_VALID
#define CPLB_DNOCACHE CPLB_ALL_ACCESS | CPLB_VALID
#define CPLB_DDOCACHE CPLB_DNOCACHE | CPLB_DEF_CACHE
#define CPLB_INOCACHE CPLB_USER_RD | CPLB_VALID
#define CPLB_IDOCACHE CPLB_INOCACHE | CPLB_L1_CHBL
#endif /* _CPLB_H */
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