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linker: Add dtcm section for Cortex M7 MCUs

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This commit adds a DTCM (Device Tightly Coupled Memory) section for
Cortex F7 MCUs. The Address and length is defined in the corresponding
device tree file.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit is contained in:
Alexander Wachter 2019-07-03 14:19:29 +02:00 • committed by Carles Cufí
commit b4c5f4b32b
7 changed files with 85 additions and 1 deletions
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12
include/linker/linker-defs.h
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@ -216,6 +216,18 @@ extern char __ccm_noinit_end[];
extern char __ccm_end[];
#endif /* DT_CCM_BASE_ADDRESS */
#ifdef DT_DTCM_BASE_ADDRESS
extern char __dtcm_data_start[];
extern char __dtcm_data_end[];
extern char __dtcm_bss_start[];
extern char __dtcm_bss_end[];
extern char __dtcm_noinit_start[];
extern char __dtcm_noinit_end[];
extern char __dtcm_data_rom_start[];
extern char __dtcm_start[];
extern char __dtcm_end[];
#endif /* DT_DTCM_BASE_ADDRESS */
/* Used by the Security Attribution Unit to configure the
* Non-Secure Callable region.
*/