u-boot qspi driver何时加载的

static int initr_env(void)
{
    /* initialize environment */
    if (should_load_env()) //返回1 执行env_relocate

        env_relocate();
    else
        set_default_env(NULL);
#ifdef CONFIG_OF_CONTROL
    env_set_addr("fdtcontroladdr", gd->fdt_blob);
#endif

    /* Initialize from environment */
    load_addr = env_get_ulong("loadaddr", 16, load_addr);

    return 0;
}

static int should_load_env(void)
{
#ifdef CONFIG_OF_CONTROL
    return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1); //返回1
#elif defined CONFIG_DELAY_ENVIRONMENT
    return 0;
#else
    return 1;
#endif
}

int fdtdec_get_config_int(const void *blob, const char *prop_name,
              int default_val)
{
    int config_node;

    debug("%s: %s\n", __func__, prop_name);
    config_node = fdt_path_offset(blob, "/config"); //没有config这个节点 config_node <0
    if (config_node < 0)
        return default_val; //返回1
    return fdtdec_get_int(blob, config_node, prop_name, default_val);
}

void env_relocate(void)
{
#if defined(CONFIG_NEEDS_MANUAL_RELOC) //不执行
    env_reloc();
    env_fix_drivers();
    env_htab.change_ok += gd->reloc_off;
#endif
    if (gd->env_valid == ENV_INVALID) { //board_init_f env_init gd->env_valid = ENV_VALID;
#if defined(CONFIG_ENV_IS_NOWHERE) || defined(CONFIG_SPL_BUILD)
        /* Environment not changable */
        set_default_env(NULL);
#else
        bootstage_error(BOOTSTAGE_ID_NET_CHECKSUM);
        set_default_env("!bad CRC");
#endif
    } else {
        env_load();
    }
}

int env_load(void)
{
    struct env_driver *drv; 
    int prio;

    for (prio = 0; (drv = env_driver_lookup(ENVOP_LOAD, prio)); prio++) {
        int ret;

        if (!drv->load)
            continue;

        if (!env_has_inited(drv->location))
            continue;

        printf("Loading Environment from %s... ", drv->name);
        ret = drv->load(); //此处感觉先要加载qpsi controller的驱动
        if (ret)
            printf("Failed (%d)\n", ret);
        else
            printf("OK\n");

        if (!ret)
            return 0;
    }

    return -ENODEV;
}