bsp: cvitek: support mount fat/ext rootfs for rt-smart

Support mount rootfs automaticly during booting up.
First try ext, then fat.

Plus some code cleanup, such as remove BSP_USING_ON_CHIP_FLASH_FS,
which is not defined and unused.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>

bsp/cvitek/drivers/port/mnt_diskfs.c

@@ -2,107 +2,61 @@
  * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2022/12/25     flyingcys    first version
  */
 #include <rtthread.h>
 
 #ifdef RT_USING_DFS
 #include <dfs_fs.h>
-#include "dfs_romfs.h"
 
 #define DBG_TAG "app.filesystem"
 #define DBG_LVL DBG_LOG
 #include <rtdbg.h>
 
-static const struct romfs_dirent _romfs_root[] =
-{
-#ifdef BSP_USING_ON_CHIP_FLASH
-    {ROMFS_DIRENT_DIR, "flash", RT_NULL, 0},
-#endif
-    {ROMFS_DIRENT_DIR, "sdcard", RT_NULL, 0}
-};
-
-const struct romfs_dirent romfs_root =
+static int _wait_device_ready(const char* devname)
 {
-    ROMFS_DIRENT_DIR, "/", (rt_uint8_t *)_romfs_root, sizeof(_romfs_root)  / sizeof(_romfs_root[0])
-};
+    int k;
 
-static void sd_mount(void *parameter)
-{
-    while (1)
+    for(k = 0; k < 10; k++)
     {
-        rt_thread_mdelay(500);
-
-        if (rt_device_find("sd0") != RT_NULL)
+        if (rt_device_find(devname) != RT_NULL)
         {
-            if (dfs_mount("sd0", "/sdcard", "elm", 0, 0) == RT_EOK)
-            {
-                LOG_I("sd card mount to '/sdcard'");
-                break;
-            }
-            else
-            {
-                LOG_W("sd card mount to '/sdcard' failed! %d\n", rt_get_errno());
-            }
+            return 1;
         }
+        rt_thread_mdelay(50);
     }
+
+    return 0;
 }
 
-int mount_init(void)
+static void sd_mount(const char *devname)
 {
-    if(dfs_mount(RT_NULL, "/", "rom", 0, &romfs_root) != 0)
-    {
-        LOG_E("rom mount to '/' failed!");
+    if (!_wait_device_ready(devname)) {
+        LOG_W("Failed to find device: %s", devname);
+        return;
     }
 
-#ifdef BSP_USING_ON_CHIP_FLASH_FS
-    struct rt_device *flash_dev = RT_NULL;
-
-    /* 使用 filesystem 分区创建块设备，块设备名称为 filesystem */
-    flash_dev = fal_blk_device_create("filesystem");
-    if(flash_dev == RT_NULL)
+    if (dfs_mount(devname, "/", "ext", 0, 0) == RT_EOK)
     {
-        LOG_E("Failed to create device.\n");
-        return -RT_ERROR;
+        LOG_I("device '%s' is mounted to '/' as EXT", devname);
     }
-
-    if (dfs_mount("filesystem", "/flash", "lfs", 0, 0) != 0)
+    else if (dfs_mount(devname, "/", "elm", 0, 0) == RT_EOK)
     {
-        LOG_I("file system initialization failed!\n");
-        if(dfs_mkfs("lfs", "filesystem") == 0)
-        {
-            if (dfs_mount("filesystem", "/flash", "lfs", 0, 0) == 0)
-            {
-                LOG_I("mount to '/flash' success!");
-            }
-        }
+        LOG_I("device '%s' is mounted to '/' as FAT", devname);
     }
     else
     {
-        LOG_I("mount to '/flash' success!");
+        LOG_W("Failed to mount device '%s' to '/': %d\n", devname, rt_get_errno());
     }
-#endif
+}
 
+int mount_init(void)
+{
 #ifdef BSP_USING_SDH
-    rt_thread_t tid;
-
-    tid = rt_thread_create("sd_mount", sd_mount, RT_NULL,
-                            4096, RT_THREAD_PRIORITY_MAX - 2, 20);
-    if (tid != RT_NULL)
-    {
-        rt_thread_startup(tid);
-    }
-    else
-    {
-        LOG_E("create sd_mount thread err!");
-    }
+    sd_mount("sd1");
 #endif
 
     return RT_EOK;
 }
-INIT_APP_EXPORT(mount_init);
+INIT_ENV_EXPORT(mount_init);
 
 #endif /* RT_USING_DFS */