nrf_security: cracen: Add workaround kconfig

Make the CRACEN lite IKG workaround not depend on CRACEN_HW_VERSION_LITE
Add Kconfig for the workaround instead
This allows for CRACEN LITE variants that do not use the workaround

Signed-off-by: Dag Erik Gjørvad <[email protected]>

Author: degjorva

subsys/nrf_security/src/drivers/cracen/Kconfig

@@ -16,6 +16,9 @@ config CRACEN_HW_VERSION_LITE
 config CRACEN_USE_MULTIPART_WORKAROUNDS
 	def_bool SOC_NRF54LM20A
 
+config CRACEN_NEED_IKG_INTERRUPT_WORKAROUND
+	def_bool SOC_NRF54LM20A || SOC_NRF54LV10A
+
 # Configure CRACEN_LOG_LEVEL
 module = CRACEN
 module-str = CRACEN

subsys/nrf_security/src/drivers/cracen/silexpk/target/baremetal_ba414e_with_ik/pk_baremetal.c

@@ -106,7 +106,7 @@ int read_status(sx_pk_req *req)
 int sx_pk_wait(sx_pk_req *req)
 {
 	do {
-		if (!IS_ENABLED(CONFIG_CRACEN_HW_VERSION_LITE) &&
+		if (!IS_ENABLED(CONFIG_CRACEN_NEED_IKG_INTERRUPT_WORKAROUND) &&
 		    IS_ENABLED(CONFIG_CRACEN_USE_INTERRUPTS)) {
 			/* In CRACEN Lite the PKE-IKG interrupt is only active when in PK mode.
 			 * This is to work around a hardware issue where the interrupt is never
@@ -125,6 +125,8 @@ int sx_pk_wait(sx_pk_req *req)
 			if (sx_pk_rdreg(&req->regs, IK_REG_STATUS) == IK_ENTROPY_ERROR) {
 				return SX_ERR_RETRY;
 			}
+		} else {
+			/* For compliance */
 		}
 
 	} while (is_busy(req));
@@ -228,7 +230,7 @@ struct sx_pk_acq_req sx_pk_acquire_req(const struct sx_pk_cmd_def *cmd)
 	req.req->cnx = &silex_pk_engine;
 
 	cracen_acquire();
-	if (!IS_ENABLED(CONFIG_CRACEN_HW_VERSION_LITE) &&
+	if (!IS_ENABLED(CONFIG_CRACEN_NEED_IKG_INTERRUPT_WORKAROUND) &&
 	    IS_ENABLED(CONFIG_CRACEN_USE_INTERRUPTS)) {
 		/* In CRACEN Lite the PKE-IKG interrupt is only active when in PK mode.
 		 * This is to work around a hardware issue where the interrupt is never cleared.
@@ -239,7 +241,7 @@ struct sx_pk_acq_req sx_pk_acquire_req(const struct sx_pk_cmd_def *cmd)
 
 	/* Wait until initialized. */
 	while (ba414ep_is_busy(req.req) || ik_is_busy(req.req)) {
-		if (!IS_ENABLED(CONFIG_CRACEN_HW_VERSION_LITE) &&
+		if (!IS_ENABLED(CONFIG_CRACEN_NEED_IKG_INTERRUPT_WORKAROUND) &&
 		    IS_ENABLED(CONFIG_CRACEN_USE_INTERRUPTS)) {
 
 			cracen_wait_for_pke_interrupt();

subsys/nrf_security/src/drivers/cracen/silexpk/target/hw/ba414/pkhardware_ba414e.c

@@ -295,7 +295,7 @@ static void run_ik_cmd(sx_pk_req *req)
 	sx_pk_wrreg(&req->regs, IK_REG_PK_CONTROL,
 		    IK_PK_CONTROL_START_OP | IK_PK_CONTROL_CLEAR_IRQ);
 
-	if (IS_ENABLED(CONFIG_CRACEN_HW_VERSION_LITE)) {
+	if (IS_ENABLED(CONFIG_CRACEN_NEED_IKG_INTERRUPT_WORKAROUND)) {
 		/* Workaround to handle IKG freezing on CRACEN lite.
 		 * THE PKE-IKG interrupt can not be cleared from software, but can
 		 * be cleared by hardware when in PK mode.