dts: nRF: Add missing headermask binding for NRF_CCM

Add missing headermask binding for NRF_CCM peripheral and
define HAS_HW_NRF_CCM_HEADERMASK Kconfig.

Signed-off-by: Vinayak Kariappa Chettimada <[email protected]>

Author: cvinayak

dts/arm/nordic/nrf52820.dtsi

@@ -245,6 +245,7 @@
 			reg = <0x4000f000 0x1000>;
 			interrupts = <15 NRF_DEFAULT_IRQ_PRIORITY>;
 			length-field-length-8-bits;
+			headermask-supported;
 			status = "okay";
 		};
 

dts/arm/nordic/nrf52833.dtsi

@@ -265,6 +265,7 @@
 			reg = <0x4000f000 0x1000>;
 			interrupts = <15 NRF_DEFAULT_IRQ_PRIORITY>;
 			length-field-length-8-bits;
+			headermask-supported;
 			status = "okay";
 		};
 

dts/arm/nordic/nrf5340_cpunet.dtsi

@@ -144,6 +144,7 @@
 			reg = <0x4100e000 0x1000>;
 			interrupts = <14 NRF_DEFAULT_IRQ_PRIORITY>;
 			length-field-length-8-bits;
+			headermask-supported;
 			status = "okay";
 		};
 

dts/bindings/crypto/nordic,nrf-ccm.yaml

@@ -20,3 +20,10 @@ properties:
       Indicates whether the CCM peripheral supports the extended length
       (8 bits) of the LENGTH field in encrypted/decrypted packets.
       If not set, only the default length (5 bits) is supported.
+
+  headermask-supported:
+    type: boolean
+    description: |
+      Indicates whether the CCM peripheral supports the headermask register to
+      set the PDU header bitmask used to derive the additional authentication
+      data (AAD) in CCM for Bluetooth Low Energy ACL, BIS and CIS PDUs.

soc/arm/nordic_nrf/Kconfig.peripherals

@@ -24,6 +24,9 @@ config HAS_HW_NRF_CCM
 config HAS_HW_NRF_CCM_LFLEN_8BIT
 	def_bool $(dt_nodelabel_bool_prop,ccm,length-field-length-8-bits)
 
+config HAS_HW_NRF_CCM_HEADERMASK
+	def_bool $(dt_nodelabel_bool_prop,ccm,headermask-supported)
+
 config HAS_HW_NRF_CLOCK
 	def_bool $(dt_compat_enabled,$(DT_COMPAT_NORDIC_NRF_CLOCK))