diff options
Diffstat (limited to 'bsps/arm/atsam/include/libchip/include/sdramc.h')
-rw-r--r-- | bsps/arm/atsam/include/libchip/include/sdramc.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/bsps/arm/atsam/include/libchip/include/sdramc.h b/bsps/arm/atsam/include/libchip/include/sdramc.h new file mode 100644 index 0000000000..078127fbe9 --- /dev/null +++ b/bsps/arm/atsam/include/libchip/include/sdramc.h @@ -0,0 +1,68 @@ +/* ---------------------------------------------------------------------------- */ +/* Atmel Microcontroller Software Support */ +/* SAM Software Package License */ +/* ---------------------------------------------------------------------------- */ +/* Copyright (c) 2015, Atmel Corporation */ +/* */ +/* All rights reserved. */ +/* */ +/* Redistribution and use in source and binary forms, with or without */ +/* modification, are permitted provided that the following condition is met: */ +/* */ +/* - Redistributions of source code must retain the above copyright notice, */ +/* this list of conditions and the disclaimer below. */ +/* */ +/* Atmel's name may not be used to endorse or promote products derived from */ +/* this software without specific prior written permission. */ +/* */ +/* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ +/* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ +/* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ +/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ +/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ +/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ +/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ +/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ +/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +/* ---------------------------------------------------------------------------- */ + +/** + * \file + * + * Definitions and function prototype for SDRAMC. + */ + +// --------------------------------------------------------------------------- +// SDRAM +// --------------------------------------------------------------------------- +/** SDRAMC Configuration */ +#define EBI_SDRAMC_ADDR (0x70000000u) + +/** SDRAM bus width */ +#define BOARD_SDRAM_BUSWIDTH 16 + + +typedef struct _SSdramc_config { + uint32_t dwColumnBits; // Number of Column Bits + uint32_t dwRowBits; // Number of Row Bits + uint32_t dwBanks; // Number of Banks + uint32_t dwCAS; // CAS Latency + uint32_t dwDataBusWidth; // Data Bus Width + uint32_t dwWriteRecoveryDelay; // Write Recovery Delay + uint32_t dwRowCycleDelay_RowRefreshCycle; // Row Cycle Delay and Row Refresh Cycle + uint32_t dwRowPrechargeDelay; // Row Precharge Delay + uint32_t dwRowColumnDelay; // Row to Column Delay + uint32_t dwActivePrechargeDelay; // Active to Precharge Delay + uint32_t dwExitSelfRefreshActiveDelay; // Exit Self Refresh to Active Delay + uint32_t dwBK1; // bk1 addr + +} SSdramc_config; + +typedef struct _SSdramc_Memory { + SSdramc_config cfg; + +} SSdramc_Memory; + +extern void SDRAMC_Configure(SSdramc_Memory *pMemory, + uint32_t dwClockFrequency); |