retained_mem support on esp32 devices #97276
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sylvioalves
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uLipe
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marekmatej
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Adds separate memory regions for rtc ram memory areas and reworks linker scripts to make use of their starting addresses and lengths Signed-off-by: Marcio Ribeiro <marcio.ribeiro@espressif.com>
Adds support for retained_men on the following platforms: - esp32_devkitc/esp32/procpu - esp32_ethernet_kit/esp32/procpu - esp32c3_devkitc - esp32c3_devkitm - esp32c3_rust - esp32c6_devkitc/esp32c6/hpcore - esp32h2_devkitm - esp32s2_devkitc - esp32s2_saola - esp32s3_devkitc/esp32s3/procpu - esp32s3_devkitm/esp32s3/procpu - esp32s3_eye/esp32s3/procpu - esp_wrover_kit/esp32/procpu Signed-off-by: Marcio Ribeiro <marcio.ribeiro@espressif.com>
Enables retained_mem api test using RTC RAM for the following platforms: - esp32_devkitc/esp32/procpu - esp32c3_devkitm - esp32c6_devkitc/esp32c6/hpcore - esp32h2_devkitm - esp32s2_devkitc - esp32s3_devkitm/esp32s3/procpu Signed-off-by: Marcio Ribeiro <marcio.ribeiro@espressif.com>
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Adds retained_mem api to espressif deep_sleep sample and enables it for the following platforms: - esp32_devkitm/esp32/procpu - esp32c3_devkitm - esp32c6_devkitc/esp32c6/hpcore - esp32h2_devkitm - esp32s2_devkitc - esp32s3_devkitm/esp32s3/procpu Signed-off-by: Marcio Ribeiro <marcio.ribeiro@espressif.com>
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marekmatej
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sylvioalves
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raffarost
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Oct 27, 2025
uLipe
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Oct 27, 2025
nordicjm
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Nov 5, 2025
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This PR enables support for retained_men using RTC RAM on Espressif devices