Reduce restore time when waking up from s2ram on nrf54h20 #2725
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…ossible Add nrf_cache_power_up and nrf_cache_power_down functions. In case of s2ram power up cache as early as possible, before restoring ARM core registers. It improves restore time from 180 us to 33 us. As a minor optimization nrf_memconf_ramblock_control_mask_enable_set is used which allows to control ram blocks for icache and dcache in a single register write. Signed-off-by: Krzysztof Chruściński <[email protected]> (cherry picked from commit a36b154)
…timing Update exit-latency-us with newly measured values. Measurement is taking into account additional timing compared to wakeup from WFI. Signed-off-by: Krzysztof Chruściński <[email protected]> (cherry picked from commit a4a6130)
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adamkondraciuk
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Apr 10, 2025
kl-cruz
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Apr 10, 2025
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By moving cache enabling earlier wake up time is reduced from 180us to 33us.