diff --git a/include/device.h b/include/device.h
index c2b8b2577a4..0ca45eb6ef1 100644
--- a/include/device.h
+++ b/include/device.h
@@ -9,8 +9,6 @@
 #define _DEVICE_H_
 
 #include <kernel.h>
-/* for __deprecated */
-#include <toolchain.h>
 
 /**
  * @brief Device Driver APIs
@@ -30,28 +28,11 @@
 extern "C" {
 #endif
 
-/* XXX the easiest way to trigger a warning on a preprocessor macro
- * is to use _Pragma("GCC warning \"...\"), however it's impossible to filter
- * those out of -Werror, needed for sanitycheck. So we do this nastiness
- * instead. These functions get compiled but don't take up extra space in
- * the binary..
- */
-static __deprecated const int _INIT_LEVEL_PRIMARY = 1;
-static __deprecated const int _INIT_LEVEL_SECONDARY = 1;
-static __deprecated const int _INIT_LEVEL_NANOKERNEL = 1;
-static __deprecated const int _INIT_LEVEL_MICROKERNEL = 1;
 static const int _INIT_LEVEL_PRE_KERNEL_1 = 1;
 static const int _INIT_LEVEL_PRE_KERNEL_2 = 1;
 static const int _INIT_LEVEL_POST_KERNEL = 1;
 static const int _INIT_LEVEL_APPLICATION = 1;
 
-#define _DEPRECATION_CHECK(dev_name, level) \
-	static inline void _CONCAT(_deprecation_check_, dev_name)() \
-	{ \
-		int foo = _CONCAT(_INIT_LEVEL_, level); \
-		(void)foo; \
-	}
-
 /**
  * @def DEVICE_INIT
  *
@@ -123,7 +104,6 @@ static const int _INIT_LEVEL_APPLICATION = 1;
 		.name = drv_name, .init = (init_fn), \
 		.config_info = (cfg_info) \
 	}; \
-	_DEPRECATION_CHECK(dev_name, level) \
 	static struct device _CONCAT(__device_, dev_name) __used \
 	__attribute__((__section__(".init_" #level STRINGIFY(prio)))) = { \
 		 .config = &_CONCAT(__config_, dev_name), \
@@ -157,7 +137,6 @@ static const int _INIT_LEVEL_APPLICATION = 1;
 		.device_pm_control = (pm_control_fn), \
 		.config_info = (cfg_info) \
 	}; \
-	_DEPRECATION_CHECK(dev_name, level) \
 	static struct device _CONCAT(__device_, dev_name) __used \
 	__attribute__((__section__(".init_" #level STRINGIFY(prio)))) = { \
 		 .config = &_CONCAT(__config_, dev_name), \
diff --git a/include/init.h b/include/init.h
index 8eb89c3b3d3..337d1b5f251 100644
--- a/include/init.h
+++ b/include/init.h
@@ -19,9 +19,6 @@ extern "C" {
  * System initialization levels. The PRE_KERNEL_1 and PRE_KERNEL_2 levels are
  * executed in the kernel's initialization context, which uses the interrupt
  * stack. The remaining levels are executed in the kernel's main task.
- *
- * PRIMARY, SECONDARY, NANOKERNEL, MICROKERNEL levels are currently deprecated
- * and will be removed in the future.
  */
 
 #define _SYS_INIT_LEVEL_PRE_KERNEL_1	0
@@ -29,12 +26,6 @@ extern "C" {
 #define _SYS_INIT_LEVEL_POST_KERNEL	2
 #define _SYS_INIT_LEVEL_APPLICATION	3
 
-/* Deprecated, remove eventually */
-#define _SYS_INIT_LEVEL_PRIMARY		4
-#define _SYS_INIT_LEVEL_SECONDARY	5
-#define _SYS_INIT_LEVEL_NANOKERNEL	6
-#define _SYS_INIT_LEVEL_MICROKERNEL	7
-
 
 /* Counter use to avoid issues if two or more system devices are declared
  * in the same C file with the same init function
diff --git a/include/linker-defs.h b/include/linker-defs.h
index d620dee0d9a..418025fccac 100644
--- a/include/linker-defs.h
+++ b/include/linker-defs.h
@@ -83,10 +83,6 @@
 		DEVICE_INIT_LEVEL(PRE_KERNEL_2)	\
 		DEVICE_INIT_LEVEL(POST_KERNEL)	\
 		DEVICE_INIT_LEVEL(APPLICATION)	\
-		DEVICE_INIT_LEVEL(PRIMARY)	\
-		DEVICE_INIT_LEVEL(SECONDARY)	\
-		DEVICE_INIT_LEVEL(NANOKERNEL)	\
-		DEVICE_INIT_LEVEL(MICROKERNEL)	\
 		__device_init_end = .;		\
 		DEVICE_BUSY_BITFIELD()		\
 
diff --git a/kernel/device.c b/kernel/device.c
index b7f3611af3c..bfec736a995 100644
--- a/kernel/device.c
+++ b/kernel/device.c
@@ -15,13 +15,6 @@ extern struct device __device_PRE_KERNEL_1_start[];
 extern struct device __device_PRE_KERNEL_2_start[];
 extern struct device __device_POST_KERNEL_start[];
 extern struct device __device_APPLICATION_start[];
-
-/* Deprecated */
-extern struct device __device_PRIMARY_start[];
-extern struct device __device_SECONDARY_start[];
-extern struct device __device_NANOKERNEL_start[];
-extern struct device __device_MICROKERNEL_start[];
-
 extern struct device __device_init_end[];
 
 static struct device *config_levels[] = {
@@ -29,13 +22,6 @@ static struct device *config_levels[] = {
 	__device_PRE_KERNEL_2_start,
 	__device_POST_KERNEL_start,
 	__device_APPLICATION_start,
-
-	/* Deprecated levels */
-	__device_PRIMARY_start,
-	__device_SECONDARY_start,
-	__device_NANOKERNEL_start,
-	__device_MICROKERNEL_start,
-
 	/* End marker */
 	__device_init_end,
 };
diff --git a/kernel/init.c b/kernel/init.c
index e4c4e1e02b1..a3e20c6ce06 100644
--- a/kernel/init.c
+++ b/kernel/init.c
@@ -179,11 +179,6 @@ static void _main(void *unused1, void *unused2, void *unused3)
 
 	_sys_device_do_config_level(_SYS_INIT_LEVEL_POST_KERNEL);
 
-	/* These 3 are deprecated */
-	_sys_device_do_config_level(_SYS_INIT_LEVEL_SECONDARY);
-	_sys_device_do_config_level(_SYS_INIT_LEVEL_NANOKERNEL);
-	_sys_device_do_config_level(_SYS_INIT_LEVEL_MICROKERNEL);
-
 	/* Final init level before app starts */
 	_sys_device_do_config_level(_SYS_INIT_LEVEL_APPLICATION);
 
@@ -353,9 +348,6 @@ FUNC_NORETURN void _Cstart(void)
 
 	prepare_multithreading(dummy_thread);
 
-	/* Deprecated */
-	_sys_device_do_config_level(_SYS_INIT_LEVEL_PRIMARY);
-
 	/* perform basic hardware initialization */
 	_sys_device_do_config_level(_SYS_INIT_LEVEL_PRE_KERNEL_1);
 	_sys_device_do_config_level(_SYS_INIT_LEVEL_PRE_KERNEL_2);