diff --git a/platform/fatfs/usbh_fatfs.c b/platform/fatfs/usbh_fatfs.c
index 5e164a7b..ad1b04ca 100644
--- a/platform/fatfs/usbh_fatfs.c
+++ b/platform/fatfs/usbh_fatfs.c
@@ -10,11 +10,6 @@
 
 struct usbh_msc *active_msc_class;
 
-int USB_disk_status(void)
-{
-    return RES_OK;
-}
-
 int USB_disk_initialize(void)
 {
     active_msc_class = (struct usbh_msc *)usbh_find_class_instance("/dev/sda");
@@ -28,14 +23,69 @@ int USB_disk_initialize(void)
     return RES_OK;
 }
 
+int USB_disk_status(void)
+{
+    return RES_OK;
+}
+
 int USB_disk_read(BYTE *buff, LBA_t sector, UINT count)
 {
-    return usbh_msc_scsi_read10(active_msc_class, sector, buff, count);
+    int ret;
+    uint8_t *align_buf;
+
+    align_buf = (uint8_t *)buff;
+#ifdef CONFIG_USB_DCACHE_ENABLE
+    if ((uint32_t)buff & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        align_buf = (uint8_t *)memalign(CONFIG_USB_ALIGN_SIZE, count * active_msc_class->blocksize);
+        if (!align_buf) {
+            printf("msc get align buf failed\r\n");
+            return -USB_ERR_NOMEM;
+        }
+    }
+#endif
+    ret = usbh_msc_scsi_read10(active_msc_class, sector, align_buf, count);
+    if (ret < 0) {
+        ret = RES_ERROR;
+    } else {
+        ret = RES_OK;
+    }
+#ifdef CONFIG_USB_DCACHE_ENABLE
+    if ((uint32_t)buff & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        usb_memcpy(buff, align_buf, count * active_msc_class->blocksize);
+        free(align_buf);
+    }
+#endif
+    return ret;
 }
 
 int USB_disk_write(const BYTE *buff, LBA_t sector, UINT count)
 {
-    return usbh_msc_scsi_write10(active_msc_class, sector, buff, count);
+    int ret;
+    uint8_t *align_buf;
+
+    align_buf = (uint8_t *)buff;
+#ifdef CONFIG_USB_DCACHE_ENABLE
+    if ((uint32_t)buff & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        align_buf = (uint8_t *)memalign(CONFIG_USB_ALIGN_SIZE, count * active_msc_class->blocksize);
+        if (!align_buf) {
+            printf("msc get align buf failed\r\n");
+            return -USB_ERR_NOMEM;
+        }
+        usb_memcpy(align_buf, buff, count * active_msc_class->blocksize);
+    }
+#endif
+    ret = usbh_msc_scsi_write10(active_msc_class, sector, align_buf, count);
+    if (ret < 0) {
+        ret = RES_ERROR;
+    } else {
+        ret = RES_OK;
+    }
+#ifdef CONFIG_USB_DCACHE_ENABLE
+    if ((uint32_t)buff & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        free(align_buf);
+    }
+#endif
+    return ret;
 }
 
 int USB_disk_ioctl(BYTE cmd, void *buff)
diff --git a/platform/rtthread/usbh_dfs.c b/platform/rtthread/usbh_dfs.c
index 128d2345..00f5a033 100644
--- a/platform/rtthread/usbh_dfs.c
+++ b/platform/rtthread/usbh_dfs.c
@@ -29,20 +29,11 @@
 #endif
 #endif
 
-#if defined(BSP_USING_BL61X)
-#include "bflb_l1c.h"
-
-void rt_hw_cpu_dcache_ops(int ops, void *addr, int size)
-{
-    if (ops == RT_HW_CACHE_FLUSH) {
-        bflb_l1c_dcache_clean_range(addr, size);
-    } else {
-        bflb_l1c_dcache_invalidate_range(addr, size);
-    }
-}
+#ifdef RT_USING_CACHE
+#ifndef CONFIG_USB_DCACHE_ENABLE
+#error CONFIG_USB_DCACHE_ENABLE must be enabled to use msc disk
+#endif
 #endif
-
-USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t msc_sector[512];
 
 static rt_err_t rt_udisk_init(rt_device_t dev)
 {
@@ -60,36 +51,29 @@ static ssize_t rt_udisk_read(rt_device_t dev, rt_off_t pos, void *buffer,
 {
     struct usbh_msc *msc_class = (struct usbh_msc *)dev->user_data;
     int ret;
+    rt_uint8_t *align_buf;
 
+    align_buf = (rt_uint8_t *)buffer;
 #ifdef RT_USING_CACHE
-    rt_uint32_t *align_buf;
-
-    if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
-        align_buf = rt_malloc_align(size * msc_class->blocksize, RT_ALIGN_SIZE);
+    if ((uint32_t)buffer & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        align_buf = rt_malloc_align(size * msc_class->blocksize, CONFIG_USB_ALIGN_SIZE);
         if (!align_buf) {
             rt_kprintf("msc get align buf failed\n");
             return 0;
         }
     } else {
-        align_buf = (rt_uint32_t *)buffer;
     }
-
+#endif
     ret = usbh_msc_scsi_read10(msc_class, pos, (uint8_t *)align_buf, size);
     if (ret < 0) {
         rt_kprintf("usb mass_storage read failed\n");
         return 0;
     }
-    rt_hw_cpu_dcache_ops(RT_HW_CACHE_INVALIDATE, align_buf, size * msc_class->blocksize);
-    if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
-        rt_memcpy(buffer, align_buf, size * msc_class->blocksize);
+#ifdef RT_USING_CACHE
+    if ((uint32_t)buffer & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        usb_memcpy(buffer, align_buf, size * msc_class->blocksize);
         rt_free_align(align_buf);
     }
-#else
-    ret = usbh_msc_scsi_read10(msc_class, pos, buffer, size);
-    if (ret < 0) {
-        rt_kprintf("usb mass_storage read failed\n");
-        return 0;
-    }
 #endif
     return size;
 }
@@ -99,37 +83,29 @@ static ssize_t rt_udisk_write(rt_device_t dev, rt_off_t pos, const void *buffer,
 {
     struct usbh_msc *msc_class = (struct usbh_msc *)dev->user_data;
     int ret;
+    rt_uint8_t *align_buf;
 
+    align_buf = (rt_uint8_t *)buffer;
 #ifdef RT_USING_CACHE
-    rt_uint32_t *align_buf;
-
-    if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
-        align_buf = rt_malloc_align(size * msc_class->blocksize, RT_ALIGN_SIZE);
+    if ((uint32_t)buffer & (CONFIG_USB_ALIGN_SIZE - 1)) {
+        align_buf = rt_malloc_align(size * msc_class->blocksize, CONFIG_USB_ALIGN_SIZE);
         if (!align_buf) {
             rt_kprintf("msc get align buf failed\n");
             return 0;
         }
 
-        rt_memcpy(align_buf, buffer, size * msc_class->blocksize);
-    } else {
-        align_buf = (rt_uint32_t *)buffer;
+        usb_memcpy(align_buf, buffer, size * msc_class->blocksize);
     }
-
-    rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, align_buf, size * msc_class->blocksize);
+#endif
     ret = usbh_msc_scsi_write10(msc_class, pos, (uint8_t *)align_buf, size);
     if (ret < 0) {
         rt_kprintf("usb mass_storage write failed\n");
         return 0;
     }
-    if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
+#ifdef RT_USING_CACHE
+    if ((uint32_t)buffer & (CONFIG_USB_ALIGN_SIZE - 1)) {
         rt_free_align(align_buf);
     }
-#else
-    ret = usbh_msc_scsi_write10(msc_class, pos, buffer, size);
-    if (ret < 0) {
-        rt_kprintf("usb mass_storage write failed\n");
-        return 0;
-    }
 #endif
 
     return size;