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[nrf fromtree] soc: nordic: common: poweroff: Set VPR to remain in its reset state #2788

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Merged
merged 1 commit into from
Aug 14, 2025
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[nrf fromtree] soc: nordic: common: poweroff: Set VPR to remain in its reset state #2788

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9 changes: 9 additions & 0 deletions soc/nordic/common/poweroff.c
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Original file line number Diff line number Diff line change
Expand Up @@ -16,12 +16,18 @@
#endif
#if defined(CONFIG_SOC_SERIES_NRF54LX)
#include <helpers/nrfx_reset_reason.h>
#include <hal/nrf_memconf.h>
#endif

#if defined(CONFIG_HAS_NORDIC_RAM_CTRL)
#include <helpers/nrfx_ram_ctrl.h>
#endif

#if defined(CONFIG_SOC_SERIES_NRF54LX)
#define VPR_POWER_IDX 1
#define VPR_RET_BIT MEMCONF_POWER_RET_MEM0_Pos
#endif

void z_sys_poweroff(void)
{
#if defined(CONFIG_HAS_NORDIC_RAM_CTRL)
Expand Down Expand Up @@ -59,6 +65,9 @@ void z_sys_poweroff(void)
#endif

#if defined(CONFIG_SOC_SERIES_NRF54LX)
/* Set VPR to remain in its reset state when waking from OFF */
nrf_memconf_ramblock_ret_enable_set(NRF_MEMCONF, VPR_POWER_IDX, VPR_RET_BIT, false);

nrfx_reset_reason_clear(UINT32_MAX);
#endif
#if defined(CONFIG_SOC_SERIES_NRF51X) || defined(CONFIG_SOC_SERIES_NRF52X)
Expand Down