diff --git a/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c b/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c
index bd0469d5e8..78e39a7f94 100644
--- a/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c
+++ b/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c
@@ -37,29 +37,12 @@
 #include <linux/sysfs.h>
 #include <linux/lzo.h>
 
+#include "rb_hardconfig.h"
 #include "routerboot.h"
 
 #define RB_HARDCONFIG_VER		"0.07"
 #define RB_HC_PR_PFX			"[rb_hardconfig] "
 
-/* ID values for hardware settings */
-#define RB_ID_FLASH_INFO		0x03
-#define RB_ID_MAC_ADDRESS_PACK		0x04
-#define RB_ID_BOARD_PRODUCT_CODE	0x05
-#define RB_ID_BIOS_VERSION		0x06
-#define RB_ID_SDRAM_TIMINGS		0x08
-#define RB_ID_DEVICE_TIMINGS		0x09
-#define RB_ID_SOFTWARE_ID		0x0A
-#define RB_ID_SERIAL_NUMBER		0x0B
-#define RB_ID_MEMORY_SIZE		0x0D
-#define RB_ID_MAC_ADDRESS_COUNT		0x0E
-#define RB_ID_HW_OPTIONS		0x15
-#define RB_ID_WLAN_DATA			0x16
-#define RB_ID_BOARD_IDENTIFIER		0x17
-#define RB_ID_PRODUCT_NAME		0x21
-#define RB_ID_DEFCONF			0x26
-#define RB_ID_BOARD_REVISION		0x27
-
 /* Bit definitions for hardware options */
 #define RB_HW_OPT_NO_UART		BIT(0)
 #define RB_HW_OPT_HAS_VOLTAGE		BIT(1)
diff --git a/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.h b/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.h
new file mode 100644
index 0000000000..328f4fe3c3
--- /dev/null
+++ b/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.h
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Common definitions for MikroTik RouterBoot hard config data.
+ *
+ * Copyright (C) 2020 Thibaut VARÈNE <hacks+kernel@slashdirt.org>
+ *
+ * Some constant defines extracted from routerboot.{c,h} by Gabor Juhos
+ * <juhosg@openwrt.org>
+ */
+
+#ifndef _ROUTERBOOT_HARD_CONFIG_H_
+#define _ROUTERBOOT_HARD_CONFIG_H_
+
+/* ID values for hardware settings */
+#define RB_ID_FLASH_INFO		0x03
+#define RB_ID_MAC_ADDRESS_PACK		0x04
+#define RB_ID_BOARD_PRODUCT_CODE	0x05
+#define RB_ID_BIOS_VERSION		0x06
+#define RB_ID_SDRAM_TIMINGS		0x08
+#define RB_ID_DEVICE_TIMINGS		0x09
+#define RB_ID_SOFTWARE_ID		0x0A
+#define RB_ID_SERIAL_NUMBER		0x0B
+#define RB_ID_MEMORY_SIZE		0x0D
+#define RB_ID_MAC_ADDRESS_COUNT		0x0E
+#define RB_ID_HW_OPTIONS		0x15
+#define RB_ID_WLAN_DATA			0x16
+#define RB_ID_BOARD_IDENTIFIER		0x17
+#define RB_ID_PRODUCT_NAME		0x21
+#define RB_ID_DEFCONF			0x26
+#define RB_ID_BOARD_REVISION		0x27
+
+#endif /* _ROUTERBOOT_HARD_CONFIG_H_ */