nrf: Make sure to not use SD functions when SD not available

ports/nrf/common-hal/os/__init__.c

@@ -30,8 +30,11 @@
 #include "py/objtuple.h"
 #include "py/qstr.h"
 
+#ifdef BLUETOOTH_SD
 #include "nrf_sdm.h"
-#include "nrf_soc.h"
+#endif
+
+#include "nrf.h"
 
 STATIC const qstr os_uname_info_fields[] = {
     MP_QSTR_sysname, MP_QSTR_nodename,
@@ -61,15 +64,15 @@ mp_obj_t common_hal_os_uname(void) {
 }
 
 bool common_hal_os_urandom(uint8_t* buffer, uint32_t length) {
+#ifdef BLUETOOTH_SD
     uint8_t sd_en = 0;
     (void) sd_softdevice_is_enabled(&sd_en);
 
-  if ( sd_en )
-  {
+    if (sd_en) {
       return NRF_SUCCESS == sd_rand_application_vector_get(buffer,length);
-  }else
-  {
-    // SoftDevice is not enabled.
+    }
+#endif
+
     NRF_RNG->EVENTS_VALRDY = 0;
     NRF_RNG->TASKS_START   = 1;
 
@@ -82,7 +85,6 @@ bool common_hal_os_urandom(uint8_t* buffer, uint32_t length) {
     }
 
     NRF_RNG->TASKS_STOP = 1;
-  }
 
     return true;
 }

ports/nrf/internal_flash.c

@@ -37,7 +37,10 @@
 #include "supervisor/shared/rgb_led_status.h"
 
 #include "nrf.h"
-#include "nrf_soc.h"
+
+#ifdef BLUETOOTH_SD
+#include "nrf_sdm.h"
+#endif
 
 // defined in linker
 extern uint32_t __fatfs_flash_start_addr[];
@@ -83,6 +86,8 @@ static uint32_t convert_block_to_flash_addr(uint32_t block) {
 }
 
 bool internal_flash_write_block(const uint8_t *src, uint32_t block) {
+  uint8_t sd_en = 0;
+
 #ifdef MICROPY_HW_LED_MSC
   port_pin_set_output_level(MICROPY_HW_LED_MSC, true);
 #endif
@@ -99,13 +104,49 @@ bool internal_flash_write_block(const uint8_t *src, uint32_t block) {
   memcpy(buf, flash_align, FLASH_PAGE_SIZE);
   memcpy(buf + (dest%FLASH_PAGE_SIZE), src, FILESYSTEM_BLOCK_SIZE);
 
+#ifdef BLUETOOTH_SD
+  (void) sd_softdevice_is_enabled(&sd_en);
+
+  if (sd_en) {
     if (NRF_SUCCESS != sd_flash_page_erase(pagenum)) {
       return false;
     }
 
-  if (NRF_SUCCESS != sd_flash_write((uint32_t*) flash_align, (uint32_t*) buf, FLASH_PAGE_SIZE/4)) {
+    if (NRF_SUCCESS != sd_flash_write((uint32_t*) flash_align, (uint32_t*) buf, FLASH_PAGE_SIZE / sizeof(uint32_t))) {
       return false;
     }
+  }
+#endif
+
+  if (!sd_en) {
+    // Erase
+    NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Een << NVMC_CONFIG_WEN_Pos);
+    while (NRF_NVMC->READY == NVMC_READY_READY_Busy);
+
+    NRF_NVMC->ERASEPAGE = dest;
+    while (NRF_NVMC->READY == NVMC_READY_READY_Busy);
+
+    NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
+    while (NRF_NVMC->READY == NVMC_READY_READY_Busy);
+
+    // Write
+    uint32_t *src = (uint32_t*) buf;
+    uint32_t i = 0;
+
+    while (i < (FLASH_PAGE_SIZE / sizeof(uint32_t))) {
+      NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
+      while (NRF_NVMC->READY == NVMC_READY_READY_Busy);
+
+      *flash_align++ = *src++;
+
+      while (NRF_NVMC->READY == NVMC_READY_READY_Busy);
+
+      NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
+      while (NRF_NVMC->READY == NVMC_READY_READY_Busy);
+
+      ++i;
+    }
+  }
 
   clear_temp_status();
 #ifdef MICROPY_HW_LED_MSC