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drivers: retained_mem: nrf: implement using nrfx_ram_ctrl helper

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Now retained_mem driver can utilize nrfx_ram_ctrl helper
for nRF devices. It provides abstraction over various RAM retention
peripherals like POWER, VMC or MEMCONF.

Signed-off-by: Nikodem Kastelik <nikodem.kastelik@nordicsemi.no>
This commit is contained in:
Nikodem Kastelik 2024-07-29 10:25:13 +02:00 committed by Anas Nashif
parent 61e5958eff
commit 022e81e8d2
4 changed files with 49 additions and 2 deletions
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1
drivers/retained_mem/CMakeLists.txt
View file

@ -5,5 +5,6 @@ zephyr_syscall_header(${ZEPHYR_BASE}/include/zephyr/drivers/retained_mem.h)
zephyr_library()
zephyr_library_sources_ifdef(CONFIG_USERSPACE retained_mem_handlers.c)
zephyr_library_sources_ifdef(CONFIG_RETAINED_MEM_NRF_GPREGRET retained_mem_nrf_gpregret.c)
zephyr_library_sources_ifdef(CONFIG_RETAINED_MEM_NRF_RAM_CTRL retained_mem_nrf_ram_ctrl.c)
zephyr_library_sources_ifdef(CONFIG_RETAINED_MEM_ZEPHYR_RAM retained_mem_zephyr_ram.c)
zephyr_library_sources_ifdef(CONFIG_RETAINED_MEM_ZEPHYR_REG retained_mem_zephyr_reg.c)

8
drivers/retained_mem/Kconfig.nrf
View file

@ -8,3 +8,11 @@ config RETAINED_MEM_NRF_GPREGRET
help
Enable driver for Nordic nRF GPREGRET-based retained memory
register support.
config RETAINED_MEM_NRF_RAM_CTRL
bool "nRF RAM retention driver"
default y
depends on DT_HAS_ZEPHYR_RETAINED_RAM_ENABLED && RETAINED_MEM_ZEPHYR_RAM && POWEROFF
depends on SOC_SERIES_NRF52X || SOC_SERIES_NRF53X || SOC_SERIES_NRF54LX || SOC_SERIES_NRF91X
help
Enable driver for Nordic RAM retention.

37
drivers/retained_mem/retained_mem_nrf_ram_ctrl.c Normal file
View file

@ -0,0 +1,37 @@
/*
* Copyright (c) 2024, Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/devicetree.h>
#include <zephyr/kernel.h>
#include <helpers/nrfx_ram_ctrl.h>
#define _BUILD_MEM_REGION(node_id) \
{.dt_addr = DT_REG_ADDR(DT_PARENT(node_id)),\
.dt_size = DT_REG_SIZE(DT_PARENT(node_id))}
struct ret_mem_region {
uintptr_t dt_addr;
size_t dt_size;
};
static const struct ret_mem_region ret_mem_regions[] = {
DT_FOREACH_STATUS_OKAY(zephyr_retained_ram, _BUILD_MEM_REGION)
};
static int retained_mem_nrf_init(void)
{
const struct ret_mem_region *rmr;
for (size_t i = 0; i < ARRAY_SIZE(ret_mem_regions); i++) {
rmr = &ret_mem_regions[i];
nrfx_ram_ctrl_retention_enable_set((void *)rmr->dt_addr, rmr->dt_size, true);
}
return 0;
}
SYS_INIT(retained_mem_nrf_init, PRE_KERNEL_1, 0);

5
modules/hal_nordic/nrfx/CMakeLists.txt
View file

@ -88,8 +88,9 @@ zephyr_library_sources_ifdef(CONFIG_SOC_SERIES_NRF91X ${MDK_DIR}/system_nrf91.c
zephyr_library_sources(nrfx_glue.c)
zephyr_library_sources(${HELPERS_DIR}/nrfx_flag32_allocator.c)
zephyr_library_sources_ifdef(CONFIG_NRFX_DPPI ${HELPERS_DIR}/nrfx_gppi_dppi.c)
zephyr_library_sources_ifdef(CONFIG_NRFX_PPI ${HELPERS_DIR}/nrfx_gppi_ppi.c)
zephyr_library_sources_ifdef(CONFIG_RETAINED_MEM_NRF_RAM_CTRL ${HELPERS_DIR}/nrfx_ram_ctrl.c)
zephyr_library_sources_ifdef(CONFIG_NRFX_DPPI ${HELPERS_DIR}/nrfx_gppi_dppi.c)
zephyr_library_sources_ifdef(CONFIG_NRFX_PPI ${HELPERS_DIR}/nrfx_gppi_ppi.c)
zephyr_library_sources_ifdef(CONFIG_NRFX_PRS ${SRC_DIR}/prs/nrfx_prs.c)