diff --git a/Config.uk b/Config.uk
index 7d71cd2b83a58750b1d12fc33f0f71baaa926dac..a64f1995a0aa9172d0815b0c8f96e347fe18cfd0 100644
--- a/Config.uk
+++ b/Config.uk
@@ -45,7 +45,7 @@ menu "Platform Configuration"
 endmenu
 
 menu "Device Drivers"
-	source "$(shell,$(UK_BASE)/support/build/config-submenu.sh -q -o '$(KCONFIG_DIR)/drivers.uk' -r '$(KCONFIG_DRIV_BASE)' -l '$(KCONFIG_DRIV_BASE)' -e '$(KCONFIG_EXCLUDEDIRS)')"
+	source "$(shell,$(UK_BASE)/support/build/config-submenu.sh -q -o '$(KCONFIG_DIR)/drivers.uk' -r '$(KCONFIG_DRIV_BASE)' -l '$(KCONFIG_DRIV_BASE)' -c '$(KCONFIG_EDRV_DIRS)' -e '$(KCONFIG_EXCLUDEDIRS)')"
 endmenu
 
 menu "Library Configuration"
diff --git a/Makefile b/Makefile
index 613f0d941a81cab6b9271caf7f53463c44d45aa9..48cd4327cc9c55134928b82bd03adf8a54327703 100644
--- a/Makefile
+++ b/Makefile
@@ -199,6 +199,19 @@ $(error Cannot find library: $(ITR)) \
 endif
 ELIB_DIR := $(realpath $(patsubst %/,%,$(patsubst %.,%,$(ELIB_DIR))))
 
+# EDRV_DIR (list of external drivers)
+ifeq ("$(origin D)", "command line")
+# driver path exists?
+$(foreach ITR,$(subst :, ,$(D)), \
+$(if $(filter /%,$(ITR)),,$(error Path to external library "$(ITR)" (D) is not absolute));\
+$(if $(wildcard $(ITR)), \
+$(eval EDRV_DIR += $(realpath $(patsubst %/,%,$(patsubst %.,%,$(ITR))))), \
+$(error Cannot find library: $(ITR)) \
+) \
+)
+endif
+EDRV_DIR := $(realpath $(patsubst %/,%,$(patsubst %.,%,$(EDRV_DIR))))
+
 # IMPORT_EXCLUDEDIRS (list of (library) paths to exclude)
 # Retrieved from E variable from the command line
 # (paths are separated by colon)
@@ -251,6 +264,7 @@ KCONFIG_ELIB_DIRS     := $(L)
 KCONFIG_PLAT_BASE     := $(CONFIG_UK_BASE)/plat
 KCONFIG_EPLAT_DIRS    := $(P)
 KCONFIG_DRIV_BASE     := $(CONFIG_UK_BASE)/drivers
+KCONFIG_EDRV_DIRS     := $(D)
 ifneq ($(CONFIG_UK_BASE),$(CONFIG_UK_APP))
 KCONFIG_EAPP_DIR      := $(CONFIG_UK_APP)
 else
@@ -326,6 +340,8 @@ UK_PLATS:=
 UK_PLATS-y:=
 UK_LIBS:=
 UK_LIBS-y:=
+UK_DRVS:=
+UK_DRVS-y:=
 UK_ALIBS:=
 UK_ALIBS-y:=
 UK_OLIBS:=
@@ -732,6 +748,12 @@ $(eval $(call verbose_include,$(CONFIG_UK_BASE)/lib/Makefile.uk))
 $(foreach ITR,$(ELIB_DIR), \
 	$(eval $(call import_lib,$(ITR))); \
 )
+
+# external drivers
+$(foreach ITR,$(EDRV_DIR), \
+	$(eval $(call import_lib,$(ITR))); \
+)
+
 # architecture library
 $(eval $(call import_lib,$(CONFIG_UK_BASE)/arch/$(UK_FAMILY)))
 # drivers
@@ -919,6 +941,7 @@ COMMON_CONFIG_ENV = \
 	KCONFIG_PLAT_BASE="$(KCONFIG_PLAT_BASE)" \
 	KCONFIG_EPLAT_DIRS="$(KCONFIG_EPLAT_DIRS)" \
 	KCONFIG_DRIV_BASE="$(KCONFIG_DRIV_BASE)" \
+	KCONFIG_EDRV_DIRS="$(KCONFIG_EDRV_DIRS)" \
 	KCONFIG_EAPP_DIR="$(KCONFIG_EAPP_DIR)" \
 	KCONFIG_EXCLUDEDIRS="$(KCONFIG_EXCLUDEDIRS)" \
 	UK_NAME="$(CONFIG_UK_NAME)"
diff --git a/support/build/Makefile.rules b/support/build/Makefile.rules
index 16f660f29fc62fdf10823ce80693aed2a81375a6..da961e0e9f6acbc3e606580064dc7d28508049d0 100644
--- a/support/build/Makefile.rules
+++ b/support/build/Makefile.rules
@@ -273,6 +273,29 @@ define addplat_s =
 $(if $(filter y,$(2)),$(call addplat,$(1)),)
 endef
 
+# Register driver to build system
+# adddrv $1:drvname
+define adddrv =
+$(call mk_sub_build_dir,$(1))
+UK_LIBS += $(1)
+$(eval $(call uc,$(1))_BASE    := $(IMPORT_BASE))
+$(eval $(call uc,$(1))_BUILD   := $(call sub_build_dir,$(1)))
+$(eval $(call uc,$(1))_EXPORTS += $(wildcard $(IMPORT_BASE)/exportsyms.uk))
+$(eval $(call uc,$(1))_LOCALS  += $(wildcard $(IMPORT_BASE)/localsyms.uk))
+endef
+
+# adddrv_tree $1:libname
+define adddrv_tree =
+$(eval $(call uc,$(1))__BUILDTREE := y)
+$(call addlib,$(1))
+endef
+
+# adddrv_s $1:libname,$2:switch
+define adddrv_s =
+ifeq ($(2),y)
+$(call addlib,$(1))
+endif
+endef
 
 # Register libraries to build system
 # addlib $1:libname