网络通，测试flash

Drivers/BSP/GD5F2GQ5UE/fal_flash_gd5f2gq5ue.c

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+/**
+  ******************************************************************************
+  * @file    fal_flash_gd5f2gq5ue.c
+  * @brief   FAL 端口：GD5F2GQ5UE SPI NAND Flash 适配层
+  ******************************************************************************
+  */
+
+#include "fal_def.h"
+#include "gd5f2gq5ue.h"
+
+/* ===================== FAL Flash 设备操作函数 ===================== */
+
+static int gd5f_fal_init(void)
+{
+    return gd5f2gq5ue_init();
+}
+
+static int gd5f_fal_read(long offset, uint8_t *buf, size_t size)
+{
+    return gd5f2gq5ue_read(offset, buf, size);
+}
+
+static int gd5f_fal_write(long offset, const uint8_t *buf, size_t size)
+{
+    return gd5f2gq5ue_write(offset, buf, size);
+}
+
+static int gd5f_fal_erase(long offset, size_t size)
+{
+    return gd5f2gq5ue_erase(offset, size);
+}
+
+/* ===================== FAL Flash 设备定义 ===================== */
+
+const struct fal_flash_dev gd5f2gq5ue_flash = {
+    .name       = "gd5f2gq5ue",
+    .addr       = 0,
+    .len        = GD5F_TOTAL_SIZE,           /* 256MB */
+    .blk_size   = GD5F_BLOCK_SIZE,           /* 128KB */
+    .ops        = {
+        .init   = gd5f_fal_init,
+        .read   = gd5f_fal_read,
+        .write  = gd5f_fal_write,
+        .erase  = gd5f_fal_erase,
+    },
+    .write_gran = 8,
+};