#ifdef RT_USING_COMPONENTS_INIT
/*
 * Components Initialization will initializesome driver and components as following
 * order:
 * rti_start         --> 0
 * BOARD_EXPORT      --> 1
 * rti_board_end     --> 1.end
 *
 * DEVICE_EXPORT     --> 2
 * COMPONENT_EXPORT  --> 3
 * FS_EXPORT         --> 4
 * ENV_EXPORT        --> 5
 * APP_EXPORT        --> 6
 *
 * rti_end           --> 6.end
 *
 * These automatically initialization, thedriver or component initial function must
 * be defined with:
 * INIT_BOARD_EXPORT(fn);
 * INIT_DEVICE_EXPORT(fn);
 * ...
 * INIT_APP_EXPORT(fn);
 * etc.
 */
static int rti_start(void)
{
    return 0;
}
INIT_EXPORT(rti_start,"0");
 
static int rti_board_start(void)
{
    return 0;
}
INIT_EXPORT(rti_board_start,"0.end");
 
static int rti_board_end(void)
{
    return 0;
}
INIT_EXPORT(rti_board_end,"1.end");
 
static int rti_end(void)
{
    return 0;
}
INIT_EXPORT(rti_end,"6.end");
 
/**
 * RT-Thread Components Initialization forboard
 */
void rt_components_board_init(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;
    for (desc = &__rt_init_desc_rti_board_start; desc < &__rt_init_desc_rti_board_end; desc ++)
    {
        rt_kprintf("initialize %s", desc->fn_name);
        result = desc->fn();
        rt_kprintf(":%d done\n", result);
    }
#else
    const init_fn_t *fn_ptr;
 
    for (fn_ptr = &__rt_init_rti_board_start; fn_ptr < &__rt_init_rti_board_end; fn_ptr++)
    {
        (*fn_ptr)();
    }
#endif
}
 
/**
 * RT-Thread Components Initialization
 */
void rt_components_init(void)
{
#if RT_DEBUG_INIT
    int result;
    const struct rt_init_desc *desc;
 
    rt_kprintf("do components initialization.\n");
    for (desc = &__rt_init_desc_rti_board_end; desc < &__rt_init_desc_rti_end; desc++)
    {
        rt_kprin