bsp: cvitek/c906B: feat: add config of bootfs

To support more choice on bootfs. romfs, cromfs are now supported on
risc_v_big platform.

Changes:
- added mount operations under port
- added prototypes for cromfs init APIs

Signed-off-by: Shell <[email protected]>
Reviewed-on: https://github.com/RT-Thread/rt-thread/pull/9229
Reviewed-by: Chen Wang <[email protected]>

4 files changed, 127 insertions, 2 deletions

diff --git a/bsp/cvitek/cv18xx_risc-v/Kconfig b/bsp/cvitek/cv18xx_risc-v/Kconfig
index e21d6bfedc..42796ddcb2 100755
--- a/bsp/cvitek/cv18xx_risc-v/Kconfig
+++ b/bsp/cvitek/cv18xx_risc-v/Kconfig
@@ -75,3 +75,18 @@ choice
         bool "milkv-duo256m-spinor"
 
 endchoice
+
+choice BSP_ROOTFS_TYPE
+    prompt "rootfs type"
+    default BSP_ROOTFS_TYPE_ROMFS
+
+    config BSP_ROOTFS_TYPE_ROMFS
+        bool "ROMFS"
+        select RT_USING_DFS_ROMFS
+
+    config BSP_ROOTFS_TYPE_CROMFS
+        bool "CROMFS"
+        select RT_USING_DFS_CROMFS
+        select PKG_USING_ZLIB
+        select PKG_USING_ZLIB_LATEST_VERSION
+endchoice
diff --git a/bsp/cvitek/drivers/SConscript b/bsp/cvitek/drivers/SConscript
index 91961af61a..56bca8b136 100755
--- a/bsp/cvitek/drivers/SConscript
+++ b/bsp/cvitek/drivers/SConscript
@@ -38,11 +38,15 @@ if GetDepend('BSP_USING_PWM'):
     src += ['drv_pwm.c']
     CPPPATH += [cwd + r'/libraries/cv180x/pwm']
 
+if GetDepend('BSP_ROOTFS_TYPE_CROMFS'):
+    src += ['port/mnt_cromfs.c']
+elif GetDepend('BSP_ROOTFS_TYPE_ROMFS'):
+    src += ['port/mnt_romfs.c']
+
 if GetDepend('BSP_USING_SDH'):
-    src += ['drv_sdhci.c', 'port/mnt.c']
+    src += ['drv_sdhci.c']
     CPPPATH += [cwd + r'/libraries/sdif']
 
-
 if GetDepend('BSP_USING_ETH'):
     src += Split('''
         drv_eth.c
diff --git a/bsp/cvitek/drivers/port/mnt_cromfs.c b/bsp/cvitek/drivers/port/mnt_cromfs.c
new file mode 100644
index 0000000000..5ca7416215
--- /dev/null
+++ b/bsp/cvitek/drivers/port/mnt_cromfs.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2024-06-18     Shell        add cromfs support
+ */
+
+#define DBG_TAG "app.filesystem"
+#define DBG_LVL DBG_LOG
+#include <rtdbg.h>
+
+#include <dfs_cromfs.h>
+#include <dfs_posix.h>
+#include <dfs_fs.h>
+#include <ioremap.h>
+#include <mmu.h>
+#include <rtthread.h>
+
+#include <unistd.h>
+
+struct _mount_table
+{
+    char *dev_name;
+    char *mount_point;
+    char *fs_name;
+    long rwflag;
+    void *data;
+};
+
+struct _mount_table _mount_table[] = {
+    [0] = {NULL, "/", "crom", 0, 0},
+
+};
+
+static int _wait_device_ready(const char* devname)
+{
+    int k;
+
+    for(k = 0; k < 10; k++)
+    {
+        if (rt_device_find(devname) != RT_NULL)
+        {
+            return 1;
+        }
+        rt_thread_mdelay(50);
+    }
+
+    return 0;
+}
+
+int mnt_init(void)
+{
+    int i;
+    uint32_t crom_data_len = 0;
+    uint32_t length;
+
+    _mount_table[0].data = cromfs_get_partition_data(&length);
+    crom_data_len = length;
+
+    if (_mount_table[0].data && (crom_data_len > 0))
+    {
+        for (i = 0; i < sizeof(_mount_table) / sizeof(_mount_table[0]); i++)
+        {
+            if (_mount_table[i].dev_name && !_wait_device_ready(_mount_table[i].dev_name))
+            {
+                LOG_E("device %s find timeout", _mount_table[i].dev_name);
+                continue;
+            }
+
+            if (dfs_mount(_mount_table[i].dev_name, _mount_table[i].mount_point,
+                        _mount_table[i].fs_name, _mount_table[i].rwflag, _mount_table[i].data) != 0)
+            {
+                LOG_E("Dir %s %s mount failed!", _mount_table[i].mount_point,
+                    _mount_table[i].dev_name ? _mount_table[i].dev_name : _mount_table[i].fs_name);
+            }
+            else
+            {
+                LOG_I("Dir %s %s mount ok!", _mount_table[i].mount_point,
+                    _mount_table[i].dev_name ? _mount_table[i].dev_name : _mount_table[i].fs_name);
+            }
+        }
+    }
+    else
+    {
+        LOG_E("No mount data found!");
+    }
+
+    mkdir("/dev/shm", 0777);
+
+    if (dfs_mount(NULL, "/dev/shm", "tmp", 0, 0) != 0)
+    {
+        LOG_E("Dir %s %s mount failed!", "/dev/shm", "tmp");
+    }
+    else
+    {
+        LOG_I("Dir %s %s mount ok!", "/dev/shm", "tmp");
+    }
+
+    LOG_I("file system initialization done!\n");
+
+    return 0;
+}
+INIT_ENV_EXPORT(mnt_init);
diff --git a/bsp/cvitek/drivers/port/mnt.c b/bsp/cvitek/drivers/port/mnt_romfs.c
index 799b7c5ccf..799b7c5ccf 100644
--- a/bsp/cvitek/drivers/port/mnt.c
+++ b/bsp/cvitek/drivers/port/mnt_romfs.c