flash: flash_init returns bool

embed/trezorhal/flash.c

@@ -41,6 +41,11 @@ const uint32_t FLASH_SECTOR_TABLE[FLASH_SECTOR_COUNT + 1] = {
     [24] = 0x08200000, // last element - not a valid sector
 };
 
+secbool flash_init(void)
+{
+    return sectrue;
+}
+
 secbool flash_unlock(void)
 {
     HAL_FLASH_Unlock();

embed/trezorhal/flash.h

@@ -45,6 +45,10 @@
 
 extern const uint32_t FLASH_SECTOR_TABLE[FLASH_SECTOR_COUNT + 1];
 
+secbool flash_init(void);
+
+void flash_set_option_bytes(void);
+
 secbool flash_unlock(void);
 secbool flash_lock(void);
 

embed/unix/flash.c

@@ -64,11 +64,11 @@ static void flash_read(void)
     }
 }
 
-int flash_init(void)
+bool flash_init(void)
 {
     memset(flash_buffer, 0xFF, sizeof(flash_buffer));
     flash_read();
-    return 0;
+    return true;
 }
 
 void flash_set_option_bytes(void)