0 Problem description

    iTOP4412 Development board through fastboot Restart repeatedly after brushing （ This is true for both self compiled images and official images ）, The serial port log is as follows ：

[    7.500087] [D_INIT]init, FM init ok
[    7.503628] [D_INIT]mtk_fm_probe, FM probe ok
[    7.511610] [MTK-WIFI] WIFI_init: mtk_wmt_WIFI_chrdev driver(major 194) installed.
[    7.713484] [HIF-SDIO][I]mtk_wcn_hif_sdio_client_reg:start!
[    7.735892] init: cannot find '/system/etc/install-recovery.sh', disabling 'flash_recovery'
[    7.748076] android_work: did not send uevent (0 0   (null))
[    7.752933] adb_bind_config
[    7.757960] adb_open
[    7.758683] ADB open:
[    7.761189] android_work: did not send uevent (0 0   (null))
[    7.848353] [WMT-DEV][I]WMT_open:major 190 minor 0 (pid 1273)
[    7.852726] [WMT-DEV][I]WMT_open:1st call (400)
[    7.857262] [mtk_wcn_stp_set_if_tx_type] set STP_IF_TX to UART.
[    7.863207] [WMT-LIB][I]wmt_lib_set_hif:new hifType:0, fcCtrl:0, baud:921600, fm:2 
[    7.871135] [WMT-C][I]opfunc_hif_conf:WMT H