00001 /* ---------------------------------------------------------------------------- */ 00002 /* Atmel Microcontroller Software Support */ 00003 /* SAM Software Package License */ 00004 /* ---------------------------------------------------------------------------- */ 00005 /* Copyright (c) 2015, Atmel Corporation */ 00006 /* */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without */ 00010 /* modification, are permitted provided that the following condition is met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, */ 00013 /* this list of conditions and the disclaimer below. */ 00014 /* */ 00015 /* Atmel's name may not be used to endorse or promote products derived from */ 00016 /* this software without specific prior written permission. */ 00017 /* */ 00018 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ 00019 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ 00020 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ 00021 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ 00022 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ 00023 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ 00024 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ 00025 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ 00026 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ 00027 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 00028 /* ---------------------------------------------------------------------------- */ 00029 00030 /** 00031 * \file 00032 * 00033 * Definitions and function prototype for SDRAMC. 00034 */ 00035 00036 // --------------------------------------------------------------------------- 00037 // SDRAM 00038 // --------------------------------------------------------------------------- 00039 /** SDRAMC Configuration */ 00040 #define EBI_SDRAMC_ADDR (0x70000000u) 00041 00042 /** SDRAM bus width */ 00043 #define BOARD_SDRAM_BUSWIDTH 16 00044 00045 00046 typedef struct _SSdramc_config { 00047 uint32_t dwColumnBits; // Number of Column Bits 00048 uint32_t dwRowBits; // Number of Row Bits 00049 uint32_t dwBanks; // Number of Banks 00050 uint32_t dwCAS; // CAS Latency 00051 uint32_t dwDataBusWidth; // Data Bus Width 00052 uint32_t dwWriteRecoveryDelay; // Write Recovery Delay 00053 uint32_t dwRowCycleDelay_RowRefreshCycle; // Row Cycle Delay and Row Refresh Cycle 00054 uint32_t dwRowPrechargeDelay; // Row Precharge Delay 00055 uint32_t dwRowColumnDelay; // Row to Column Delay 00056 uint32_t dwActivePrechargeDelay; // Active to Precharge Delay 00057 uint32_t dwExitSelfRefreshActiveDelay; // Exit Self Refresh to Active Delay 00058 uint32_t dwBK1; // bk1 addr 00059 00060 } SSdramc_config; 00061 00062 typedef struct _SSdramc_Memory { 00063 SSdramc_config cfg; 00064 00065 } SSdramc_Memory; 00066 00067 extern void SDRAMC_Configure(SSdramc_Memory *pMemory, 00068 uint32_t dwClockFrequency);