存储测试通过

Drivers/BSP/GD5F2GQ5UE/nand_ftl.c

@@ -200,12 +200,13 @@ DSTATUS disk_initialize(BYTE pdrv) {
 
     s_nand.log2_page_size = 11;
     s_nand.log2_ppb = 6;
-    s_nand.num_blocks = FTL_NUM_BLOCKS;
+    /* dhara 可见块数 = 总块数 - 保留块池（BBT 存储区不交给 dhara，避免被擦写） */
+    s_nand.num_blocks = gd5f_get_usable_blocks();
 
     dhara_map_init(&s_map, &s_nand, s_page_buf, 4);
 
     memset(s_cache_buf, 0, FTL_PAGE_SIZE);
-    s_cached_lpn = 0;
+    s_cached_lpn = (dhara_sector_t)-1;   /* -1 表示缓存未加载；LPN 0 合法，不能用 0 作哨兵 */
     s_cache_dirty = 0;
 
     {
@@ -227,6 +228,21 @@ DSTATUS disk_initialize(BYTE pdrv) {
     return 0;
 }
 
+int nand_ftl_init(void)
+{
+    DSTATUS sta = disk_initialize(0);
+    return (sta == 0) ? 0 : -1;
+}
+
+void nand_ftl_deinit(void)
+{
+    /* 复位 FTL 状态，使下次 nand_ftl_init() 真正重新走 dhara_map_resume，
+        用于测试"掉电恢复"与"坏块注入后重建"场景（模拟设备重启） */
+    s_initialized = 0;
+    s_cached_lpn = (dhara_sector_t)-1;
+    s_cache_dirty = 0;
+}
+
 DSTATUS disk_status(BYTE pdrv) {
     if (pdrv != 0) {
         return STA_NOINIT;
@@ -380,6 +396,7 @@ int nand_ftl_format(void) {
     }
 
     s_cache_dirty = 0;
+    s_cached_lpn = (dhara_sector_t)-1;
 
     DBG_INFO("NAND FTL formatted, capacity: %lu pages", dhara_map_capacity(&s_map));
     return GD5F_OK;