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[nrf noup] drivers: flash: Allow reading secure mem by nrf_rram. #2352

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Dec 12, 2024
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[nrf noup] drivers: flash: Allow reading secure mem by nrf_rram. #2352

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11 changes: 11 additions & 0 deletions drivers/flash/soc_flash_nrf_rram.c
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,11 @@ LOG_MODULE_REGISTER(flash_nrf_rram, CONFIG_FLASH_LOG_LEVEL);
#define WRITE_BLOCK_SIZE_FROM_DT DT_PROP(RRAM, write_block_size)
#define ERASE_VALUE 0xFF

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#if CONFIG_TRUSTED_EXECUTION_NONSECURE && USE_PARTITION_MANAGER
#include <soc_secure.h>
#include <pm_config.h>
#endif /* CONFIG_TRUSTED_EXECUTION_NONSECURE && USE_PARTITION_MANAGER */

#ifdef CONFIG_MULTITHREADING
static struct k_sem sem_lock;
#define SYNC_INIT() k_sem_init(&sem_lock, 1, 1)
Expand Down Expand Up @@ -279,6 +284,12 @@ static int nrf_rram_read(const struct device *dev, off_t addr, void *data, size_
}
addr += RRAM_START;

#if CONFIG_TRUSTED_EXECUTION_NONSECURE && USE_PARTITION_MANAGER && PM_APP_ADDRESS
if (addr < PM_APP_ADDRESS) {
return soc_secure_mem_read(data, (void *)addr, len);
}
#endif

memcpy(data, (void *)addr, len);

return 0;
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