mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-16 12:35:57 +00:00
e671d363b8
This commit adds a new driver category for memory controller peripherals. There is no API involved for now, as it has not been found necessary for first implementation. STM32 Flexible Memory Controller (FMC) is the only controller supported for now. This peripheral allows to access multiple types of external memories, e.g. SDRAM, NAND, NOR Flash... The initial implementation adds support for the SDRAM controller only. The HAL API is used, so the implementation should be portable to other STM32 series. It has only been tested on H7 series, so for now it can only be enabled when working on H7. Linker facilities have also been added in order to allow applications to easily define a variable in SDRAM. Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* Copyright (c) 2013-2014, Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Definitions of various linker Sections.
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*
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* Linker Section declarations used by linker script, C files and Assembly
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* files.
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*/
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#ifndef ZEPHYR_INCLUDE_LINKER_SECTIONS_H_
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#define ZEPHYR_INCLUDE_LINKER_SECTIONS_H_
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#define _TEXT_SECTION_NAME text
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#define _RODATA_SECTION_NAME rodata
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#define _CTOR_SECTION_NAME ctors
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/* Linker issue with XIP where the name "data" cannot be used */
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#define _DATA_SECTION_NAME datas
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#define _BSS_SECTION_NAME bss
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#define _NOINIT_SECTION_NAME noinit
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#define _APP_SMEM_SECTION_NAME app_smem
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#define _APP_DATA_SECTION_NAME app_datas
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#define _APP_BSS_SECTION_NAME app_bss
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#define _APP_NOINIT_SECTION_NAME app_noinit
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#define _UNDEFINED_SECTION_NAME undefined
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/* Interrupts */
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#define _IRQ_VECTOR_TABLE_SECTION_NAME .gnu.linkonce.irq_vector_table*
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#define _SW_ISR_TABLE_SECTION_NAME .gnu.linkonce.sw_isr_table*
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/* Architecture-specific sections */
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#if defined(CONFIG_ARM)
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#define _KINETIS_FLASH_CONFIG_SECTION_NAME kinetis_flash_config
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#define _TI_CCFG_SECTION_NAME .ti_ccfg
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#define _CCM_DATA_SECTION_NAME .ccm_data
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#define _CCM_BSS_SECTION_NAME .ccm_bss
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#define _CCM_NOINIT_SECTION_NAME .ccm_noinit
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#define _DTCM_DATA_SECTION_NAME .dtcm_data
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#define _DTCM_BSS_SECTION_NAME .dtcm_bss
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#define _DTCM_NOINIT_SECTION_NAME .dtcm_noinit
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#endif
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#define _IMX_BOOT_CONF_SECTION_NAME .boot_hdr.conf
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#define _IMX_BOOT_DATA_SECTION_NAME .boot_hdr.data
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#define _IMX_BOOT_IVT_SECTION_NAME .boot_hdr.ivt
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#define _IMX_BOOT_DCD_SECTION_NAME .boot_hdr.dcd_data
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#define _STM32_SDRAM1_SECTION_NAME .stm32_sdram1
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#define _STM32_SDRAM2_SECTION_NAME .stm32_sdram2
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#ifdef CONFIG_NOCACHE_MEMORY
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#define _NOCACHE_SECTION_NAME nocache
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#endif
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/* Short section references for use in ASM files */
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#if defined(_ASMLANGUAGE)
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/* Various text section names */
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#define TEXT text
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#if defined(CONFIG_X86)
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#define TEXT_START text_start /* beginning of TEXT section */
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#else
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#define TEXT_START text /* beginning of TEXT section */
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#endif
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/* Various data type section names */
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#define BSS bss
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#define RODATA rodata
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#define DATA data
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#define NOINIT noinit
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#endif /* _ASMLANGUAGE */
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#include <linker/section_tags.h>
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#endif /* ZEPHYR_INCLUDE_LINKER_SECTIONS_H_ */
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