Zephyr API Documentation 4.0.0-rc3
A Scalable Open Source RTOS
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stm32-fmc-sdram.h
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1/*
2 * Copyright (c) 2020 Teslabs Engineering S.L.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_MEMORY_CONTROLLER_STM32_FMC_SDRAM_H_
8#define ZEPHYR_INCLUDE_DT_BINDINGS_MEMORY_CONTROLLER_STM32_FMC_SDRAM_H_
9
10/* Number of column address bits */
11#define STM32_FMC_SDRAM_NC_8 0x00000000UL
12#define STM32_FMC_SDRAM_NC_9 0x00000001UL
13#define STM32_FMC_SDRAM_NC_10 0x00000002UL
14#define STM32_FMC_SDRAM_NC_11 0x00000003UL
15
16/* Number of row address bits */
17#define STM32_FMC_SDRAM_NR_11 0x00000000UL
18#define STM32_FMC_SDRAM_NR_12 0x00000004UL
19#define STM32_FMC_SDRAM_NR_13 0x00000008UL
20
21/* Memory data bus width. */
22#define STM32_FMC_SDRAM_MWID_8 0x00000000UL
23#define STM32_FMC_SDRAM_MWID_16 0x00000010UL
24#define STM32_FMC_SDRAM_MWID_32 0x00000020UL
25
26/* Number of internal banks */
27#define STM32_FMC_SDRAM_NB_2 0x00000000UL
28#define STM32_FMC_SDRAM_NB_4 0x00000040UL
29
30/* CAS Latency */
31#define STM32_FMC_SDRAM_CAS_1 0x00000080UL
32#define STM32_FMC_SDRAM_CAS_2 0x00000100UL
33#define STM32_FMC_SDRAM_CAS_3 0x00000180UL
34
35/* SDRAM clock configuration */
36#define STM32_FMC_SDRAM_SDCLK_DISABLE 0x00000000UL
37#define STM32_FMC_SDRAM_SDCLK_PERIOD_2 0x00000800UL
38#define STM32_FMC_SDRAM_SDCLK_PERIOD_3 0x00000C00UL
39
40/* Burst read */
41#define STM32_FMC_SDRAM_RBURST_DISABLE 0x00000000UL
42#define STM32_FMC_SDRAM_RBURST_ENABLE 0x00001000UL
43
44/* Read pipe */
45#define STM32_FMC_SDRAM_RPIPE_0 0x00000000UL
46#define STM32_FMC_SDRAM_RPIPE_1 0x00002000UL
47#define STM32_FMC_SDRAM_RPIPE_2 0x00004000UL
48
49#endif