2012-09-13 20:32:24 +02:00
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/************************************************************************************
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* arch/arm/src/str71x/str71x_emi.h
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*
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* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_STR71X_STR71X_EMI_H
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#define __ARCH_ARM_SRC_STR71X_STR71X_EMI_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include "str71x_map.h"
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/************************************************************************************
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* Pre-procesor Definitions
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************************************************************************************/
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/* External Memory Interfac (EMI) register offset ***********************************/
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#define STR71X_EMI_BCON0_OFFSET (0x0000) /* 16-bits wide */
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#define STR71X_EMI_BCON1_OFFSET (0x0004) /* 16-bits wide */
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#define STR71X_EMI_BCON2_OFFSET (0x0008) /* 16-bits wide */
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#define STR71X_EMI_BCON3_OFFSET (0x000c) /* 16-bits wide */
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/* External Memory Interfac (EMI) register addresses ********************************/
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#define STR71X_EMI_BCON0 (STR71X_EMI_BASE + STR71X_EMI_BCON0_OFFSET)
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#define STR71X_EMI_BCON1 (STR71X_EMI_BASE + STR71X_EMI_BCON1_OFFSET)
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#define STR71X_EMI_BCON2 (STR71X_EMI_BASE + STR71X_EMI_BCON2_OFFSET)
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#define STR71X_EMI_BCON3 (STR71X_EMI_BASE + STR71X_EMI_BCON3_OFFSET)
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/* Register bit settings ***********************************************************/
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/* Bank-N configuration register (BCONn) bit definitions */
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#define STR71X_EMIBCON_BSIZEMASK (0x0003) /* Bits 0-1: Bank size */
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#define STR71X_EMIBCON_BSIZE8 (0x0000) /* 8-bit */
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#define STR71X_EMIBCON_BSIZE16 (0x0001) /* 16-bit */
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#define STR71X_EMIBCON_WSMASK (0x003c) /* Bits 2-5: Wait states */
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#define STR71X_EMIBCON_WS0 (0x0000) /* 0 waitstates */
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#define STR71X_EMIBCON_WS1 (0x0004) /* 1 waitstates */
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#define STR71X_EMIBCON_WS2 (0x0008) /* 2 waitstates */
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#define STR71X_EMIBCON_WS3 (0x000c) /* 3 waitstates */
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#define STR71X_EMIBCON_WS4 (0x0010) /* 4 waitstates */
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#define STR71X_EMIBCON_WS5 (0x0014) /* 5 waitstates */
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#define STR71X_EMIBCON_WS6 (0x0018) /* 6 waitstates */
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#define STR71X_EMIBCON_WS7 (0x001c) /* 7 waitstates */
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#define STR71X_EMIBCON_WS8 (0x0020) /* 8 waitstates */
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#define STR71X_EMIBCON_WS9 (0x0024) /* 9 waitstates */
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#define STR71X_EMIBCON_WS10 (0x0028) /* 10 waitstates */
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#define STR71X_EMIBCON_WS11 (0x002c) /* 11 waitstates */
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#define STR71X_EMIBCON_WS12 (0x0030) /* 12 waitstates */
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#define STR71X_EMIBCON_WS13 (0x0034) /* 13 waitstates */
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#define STR71X_EMIBCON_WS14 (0x0038) /* 14 waitstates */
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#define STR71X_EMIBCON_WS15 (0x003c) /* 15 waitstates */
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#define STR71X_EMIBCON_ENABLE (0x8000) /* Bit 15: Bank enable */
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/************************************************************************************
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* Public Types
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************************************************************************************/
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/************************************************************************************
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* Public Data
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************************************************************************************/
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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#endif /* __ARCH_ARM_SRC_STR71X_STR71X_EMI_H */
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