T113的usb0问题

[laizh950]

启动设备后插入u盘没有任何反应和打印信息，需要我用下面的命令重启驱动才有反应这是为什么呢？

# echo 0 > /sys/devices/platform/soc@3000000/4101000.ehci0-controller/ehci_enable
# echo 1 > /sys/devices/platform/soc@3000000/4101000.ehci0-controller/ehci_enable

配置如下

reg_usb0_vbus: usb0-vbus {
		compatible = "regulator-fixed";
		regulator-name = "usb0-vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-enable-ramp-delay = <1000>;
		gpio = <&pio PG 6 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};
&usbc0 {
	device_type = "usbc0";
	usb_port_type = <0x1>;
	enable-active-high;
	status = "okay";
};

&ehci0 {
	drvvbus-supply = <&reg_usb0_vbus>;
};

&ohci0 {
	drvvbus-supply = <&reg_usb0_vbus>;
};

[laizh950]

我发现是有个开机脚本给切换了...

#!/bin/sh
#
# Start the adbd....
#

# config adb serialnumber for adb devices
adb_serialnumber=/etc/.adb_sn

disable_udc="/etc/.disable_udc"
udc_config=/sys/kernel/config/usb_gadget/g1/UDC

otg_role_file="/sys/devices/platform/soc/usbc0/otg_role"
usb_device_file="/sys/devices/platform/soc/usbc0/usb_device"
hardware_type=`cat /proc/cmdline | tr ' ' '\n' | grep 'hardware' | awk -F "=" '{print $2}'`

function enable_udc(){
	while [ 1 ];do
		udc=`ls /sys/class/udc 2>/dev/null`
		isudc=`cat $udc_config 2>/dev/null`
		if [ "x$isudc" = "x" ] && [ -f $udc_config ]; then
			echo $udc > $udc_config
		fi
		sleep 1
		if [ -f $disable_udc ];then
			rm $disable_udc
			break
		fi
	done
}

function start_adb(){
	serialnumber=$1
	if [ "x$serialnumber" = "x" ];then
		serialnumber="0402101560"
	fi
	printf "Starting adb: "
	# for adbd compatibilities
	mkdir -p /system/
	mkdir -p /system/bin
	if [ ! -f /system/bin/sh ];then
		ln -s /bin/sh /system/bin/sh
	fi

	# config ptmx
	mkdir -p /dev/pts
	mount -t devpts none /dev/pts

	# config adb function
	mount -t configfs none /sys/kernel/config > /dev/null 2>&1
	mkdir -p /sys/kernel/config/usb_gadget/g1
	echo "0x18d1" > /sys/kernel/config/usb_gadget/g1/idVendor
	echo "0x0002" > /sys/kernel/config/usb_gadget/g1/idProduct
	mkdir -p /sys/kernel/config/usb_gadget/g1/strings/0x409
	echo "$serialnumber" > /sys/kernel/config/usb_gadget/g1/strings/0x409/serialnumber
	echo "Google.Inc" > /sys/kernel/config/usb_gadget/g1/strings/0x409/manufacturer
	echo "Configfs ffs gadget" > /sys/kernel/config/usb_gadget/g1/strings/0x409/product
	mkdir -p /sys/kernel/config/usb_gadget/g1/functions/ffs.adb
	mkdir -p /sys/kernel/config/usb_gadget/g1/configs/c.1
	mkdir -p /sys/kernel/config/usb_gadget/g1/configs/c.1/strings/0x409
	echo 0xc0 > /sys/kernel/config/usb_gadget/g1/configs/c.1/bmAttributes
	echo 500 > /sys/kernel/config/usb_gadget/g1/configs/c.1/MaxPower
	ln -s /sys/kernel/config/usb_gadget/g1/functions/ffs.adb/ /sys/kernel/config/usb_gadget/g1/configs/c.1/ffs.adb > /dev/null 2>&1
	mkdir -p /dev/usb-ffs
	mkdir -p /dev/usb-ffs/adb
	if [ "x`ls -A /dev/usb-ffs/adb`" = "x" ];then
		mount -o uid=2000,gid=2000 -t functionfs adb /dev/usb-ffs/adb/
	fi

	# start adbd daemon
	adbd &
	[ $? -eq 0 ] && echo "OK" || "FAIL"

	# enable_udc &
}

case "$1" in
	start|"")
		if [ "x$hardware_type" = "xsun8iw11p1" ];then
			otg_role_file="/sys/devices/platform/soc@1c00000/soc@1c00000:usbc0@0/otg_role"
		elif [ "x$hardware_type" = "xsun8iw20p1" ];then
			otg_role_file="/sys/devices/platform/soc@3000000/soc@3000000:usbc0@0/otg_role"
		fi
		[ -f "$otg_role_file" ] && otg_role=`cat "$otg_role_file"`
		echo "usb0 current mode: $otg_role"
		if [ -f "$otg_role_file" ] && [ "x$otg_role" != "xusb_device" ];then
			# force switch usb0 to device mode
			echo "Starting switch usb0 to device mode."
			if [ "x$hardware_type" = "xsun8iw11p1" ];then
				usb_device_file="/sys/devices/platform/soc@1c00000/soc@1c00000:usbc0@0/usb_device"
			elif [ "x$hardware_type" = "xsun8iw20p1" ];then
				usb_device_file="/sys/devices/platform/soc@3000000/soc@3000000:usbc0@0/usb_device"
			fi
			[ -f "$usb_device_file" ] && cat $usb_device_file
		fi
		[ -f $adb_serialnumber ] && serialnumber=`cat $adb_serialnumber`
		if [ "x$serialnumber" = "x" ];then
			serialnumber=`cat /proc/cmdline | tr ' ' '\n' | grep 'snum' | awk -F "=" '{print $2}'`
		fi
		start_adb $serialnumber
		;;
	stop)
		printf "Stopping adbd "
		# touch $disable_udc
		# sleep 2
		killall adbd &
		[ $? -eq 0 ] && echo "OK" || "FAIL"
		;;
	restart|reload)
		"$0" stop
		"$0" start
		;;
	*)
		echo "Usage: $0 {start|stop|restart}"
		exit 1
		;;
esac