f9168ae464
The `nocache` is not loadable, thus data stored therein cannot be initialized by the startup code. This might be needed in special cases. E.g. One might have a buffer which one wants to DMA into, and which is a member of a struct. Other members of the struct one may want to have initialized by the startup code. The buffer thus should be placed in the `nocache` region, but for the other members of the buffer to be initialized by the startup code, the `nocache` region needs to be loadable. Fix it by making the `nocache` region loadable. Adding a KConfig symbol to do this optionally was considered, but deemed unnecessary during the PR. Signed-off-by: Julian Achatzi <mail@achatzi.pro>
32 lines
692 B
Text
32 lines
692 B
Text
/*
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* Copyright (c) 2019 Nordic Semiconductor ASA
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* Copyright (c) 2019 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* Copied from linker.ld */
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/* Non-cached region of RAM */
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SECTION_DATA_PROLOGUE(_NOCACHE_SECTION_NAME,,)
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{
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#if defined(CONFIG_MMU)
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MMU_ALIGN;
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#else
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MPU_ALIGN(_nocache_ram_size);
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#endif
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_nocache_ram_start = .;
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*(.nocache)
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*(".nocache.*")
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#include <snippets-nocache-section.ld>
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#if defined(CONFIG_MMU)
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MMU_ALIGN;
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#else
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MPU_ALIGN(_nocache_ram_size);
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#endif
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_nocache_ram_end = .;
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} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
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_nocache_ram_size = _nocache_ram_end - _nocache_ram_start;
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_nocache_load_start = LOADADDR(_NOCACHE_SECTION_NAME);
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