arch/nrf52: nvmc and flash should depends on ALLOW_BSD_COMPONENTS=y

arch/arm/src/nrf52/Kconfig

@@ -385,6 +385,7 @@ config NRF52_FLASH_PREFETCH
 
 config NRF52_PROGMEM
 	bool "FLASH program memory"
+	depends on ALLOW_BSD_COMPONENTS
 	default n
 	select ARCH_HAVE_PROGMEM
 	---help---

arch/arm/src/nrf52/Make.defs

@@ -29,9 +29,16 @@ endif
 endif
 
 CHIP_CSRCS += nrf52_start.c nrf52_clockconfig.c nrf52_irq.c nrf52_utils.c
-CHIP_CSRCS += nrf52_allocateheap.c nrf52_lowputc.c nrf52_gpio.c nrf52_nvmc.c
+CHIP_CSRCS += nrf52_allocateheap.c nrf52_lowputc.c nrf52_gpio.c
 CHIP_CSRCS += nrf52_uid.c
 
+ifeq ($(CONFIG_ALLOW_BSD_COMPONENTS),y)
+CHIP_CSRCS += nrf52_nvmc.c
+ifeq ($(CONFIG_NRF52_PROGMEM),y)
+CHIP_CSRCS += nrf52_flash.c
+endif
+endif
+
 ifeq ($(CONFIG_ARCH_CHIP_NRF52832),y)
 CHIP_CSRCS += nrf52832_errdata.c
 endif
@@ -52,10 +59,6 @@ ifeq ($(CONFIG_NRF52_UART),y)
 CHIP_CSRCS += nrf52_serial.c
 endif
 
-ifeq ($(CONFIG_NRF52_PROGMEM),y)
-CHIP_CSRCS  += nrf52_flash.c
-endif
-
 ifeq ($(CONFIG_NRF52_WDT),y)
 CHIP_CSRCS += nrf52_wdt.c
 

arch/arm/src/nrf52/nrf52_flash.c

@@ -61,6 +61,10 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
+#ifndef CONFIG_ALLOW_BSD_COMPONENTS
+#  error "This file requires Kconfig ALLOW_BSD_COMPONENTS"
+#endif
+
 #define NRF52_FLASH_PAGE_SIZE  (4*1024)
 
 #define NRF52_FLASH_ERASEDVAL  (0xffu)

arch/arm/src/nrf52/nrf52_nvmc.c

@@ -53,6 +53,14 @@
 #include "hardware/nrf52_nvmc.h"
 #include "nrf52_nvmc.h"
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifndef CONFIG_ALLOW_BSD_COMPONENTS
+#  error "This file requires Kconfig ALLOW_BSD_COMPONENTS"
+#endif
+
 /****************************************************************************
  * Private Functions
  ****************************************************************************/