suit: utils: Get rid of MRAM write mode setting

SDFW now always uses direct write mode except when deleting.
After deleting, write mode is set back to direct.
Hence it is safe to assume that the write mode is direct.

Ref: NCSDK-30143

Signed-off-by: Adam Szczygieł <[email protected]>

Author: adsz-nordic

subsys/suit/utils/src/suit_plat_mem_util.c

@@ -98,44 +98,19 @@ uint8_t *suit_plat_mem_nvm_ptr_get(uintptr_t offset)
 }
 
 #ifdef CONFIG_SDFW_IS_UROT
-static nrf_mramc_mode_write_t set_mramc_write_mode(nrf_mramc_mode_write_t new_write_mode)
-{
-	NRF_MRAMC_Type * const mramc = (NRF_MRAMC_Type * const)DT_REG_ADDR(DT_NODELABEL(mramc));
-	nrf_mramc_config_t mramc_config;
-
-	nrf_mramc_config_get(mramc, &mramc_config);
-
-	nrf_mramc_mode_write_t previous_write_mode = mramc_config.mode_write;
-
-	if (new_write_mode != previous_write_mode) {
-		mramc_config.mode_write = new_write_mode;
-		nrf_mramc_config_set(mramc, &mramc_config);
-	}
-
-	return previous_write_mode;
-}
-
 bool suit_plat_mem_clear_sicr_update_registers(void)
 {
 	bool cleared = true;
 
 	if (NRF_SICR->UROT.UPDATE.OPERATION != SICR_UROT_UPDATE_OPERATION_OPCODE_Nop ||
 	    NRF_SICR->UROT.UPDATE.STATUS != SICR_UROT_UPDATE_STATUS_CODE_None) {
 
-		const nrf_mramc_mode_write_t new_write_mode = NRF_MRAMC_MODE_WRITE_DIRECT;
-		const nrf_mramc_mode_write_t previous_write_mode =
-			set_mramc_write_mode(new_write_mode);
-
 		NRF_SICR->UROT.UPDATE.OPERATION = SICR_UROT_UPDATE_OPERATION_OPCODE_Nop;
 		NRF_SICR->UROT.UPDATE.STATUS = SICR_UROT_UPDATE_STATUS_CODE_None;
 
 		/* Trigger MRAM write */
 		NRF_SICR->UROT.UPDATE.SM.TBS.RFU[1] = (uint32_t)0xFFFFFFFF;
 
-		if (previous_write_mode != new_write_mode) {
-			set_mramc_write_mode(previous_write_mode);
-		}
-
 		if (NRF_SICR->UROT.UPDATE.OPERATION != SICR_UROT_UPDATE_OPERATION_OPCODE_Nop ||
 		    NRF_SICR->UROT.UPDATE.STATUS != SICR_UROT_UPDATE_STATUS_CODE_None) {
 			cleared = false;