refactor(ethos-n): move build flags to ethosn_npu.mk
The build flags to enable the Arm(R) Ethos(TM)-N NPU driver are in arm
platform specific make files i.e. plat/arm/common/arm_common.mk. These
flags are renamed and moved to ethosn_npu.mk. Other source and make
files are changed to reflect the changes in these flags.
Signed-off-by: Rajasekaran Kalidoss <rajasekaran.kalidoss@arm.com>
Change-Id: I6fd20225343c574cb5ac1f0f32ff2fc28ef37ea6
diff --git a/drivers/arm/ethosn/ethosn_npu.mk b/drivers/arm/ethosn/ethosn_npu.mk
new file mode 100644
index 0000000..4a31b59
--- /dev/null
+++ b/drivers/arm/ethosn/ethosn_npu.mk
@@ -0,0 +1,49 @@
+#
+# Copyright (c) 2023, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Arm(R) Ethos(TM)-N NPU SiP service
+ETHOSN_NPU_DRIVER := 0
+
+$(eval $(call assert_boolean,ETHOSN_NPU_DRIVER))
+$(eval $(call add_define,ETHOSN_NPU_DRIVER))
+
+#Ethos-N NPU TZMP1
+ETHOSN_NPU_TZMP1 := 0
+$(eval $(call assert_boolean,ETHOSN_NPU_TZMP1))
+$(eval $(call add_define,ETHOSN_NPU_TZMP1))
+ifeq (${ETHOSN_NPU_TZMP1},1)
+ ifeq (${ETHOSN_NPU_DRIVER},0)
+ $(error "ETHOSN_NPU_TZMP1 is only available if ETHOSN_NPU_DRIVER=1)
+ endif
+ ifeq (${PLAT},juno)
+ $(eval $(call add_define,JUNO_ETHOSN_TZMP1))
+ else
+ $(error "ETHOSN_NPU_TZMP1 only supported on Juno platform, not ", ${PLAT})
+ endif
+
+ ifeq (${TRUSTED_BOARD_BOOT},0)
+ # We rely on TRUSTED_BOARD_BOOT to prevent the firmware code from being
+ # tampered with, which is required to protect the confidentiality of protected
+ # inference data.
+ $(error "ETHOSN_NPU_TZMP1 is only available if TRUSTED_BOARD_BOOT is enabled)
+ endif
+
+ # We need the FW certificate and key certificate
+ $(eval $(call TOOL_ADD_PAYLOAD,${BUILD_PLAT}/npu_fw_key.crt,--npu-fw-key-cert))
+ $(eval $(call TOOL_ADD_PAYLOAD,${BUILD_PLAT}/npu_fw_content.crt,--npu-fw-cert))
+ # We need the firmware to be built into the FIP
+ $(eval $(call TOOL_ADD_IMG,ETHOSN_NPU_FW,--npu-fw))
+
+ # Needed for our OIDs to be available in tbbr_cot_bl2.c
+ $(eval $(call add_define, PLAT_DEF_OID))
+
+ # Needed so that UUIDs from the FIP are available in BL2
+ $(eval $(call add_define,PLAT_DEF_FIP_UUID))
+
+ PLAT_INCLUDES += -I${PLAT_DIR}certificate/include
+ PLAT_INCLUDES += -Iinclude/drivers/arm/
+ PLAT_INCLUDES += -I${PLAT_DIR}fip
+endif