fix pwm driver, thank sophgo

buildroot/board/cvitek/SG200X/overlay/etc/init.d/S02config

@@ -8,6 +8,11 @@ then
 	then
 		cp -vf /boot/sshd_config /etc/ssh/sshd_config
 	fi
+	if [ -e /boot/resolv.conf ]
+	then
+		rm -rf /etc/resolv.conf
+		cp -vf /boot/resolv.conf /etc/resolv.conf
+	fi
 	if [ -e /boot/input-event-daemon ]
 	then
 		if [ ! -e /etc/input-event-daemon.conf ]

buildroot/board/cvitek/SG200X/overlay/usr/share/udhcpc/default.script

@@ -0,0 +1,127 @@
+#!/bin/sh
+
+# udhcpc script edited by Tim Riker <Tim@Rikers.org>
+
+[ -z "$1" ] && echo "Error: should be called from udhcpc" && exit 1
+
+ACTION="$1"
+
+RESOLV_CONF="/etc/resolv.conf"
+if [ -e /boot/resolv.conf ]
+then
+	RESOLV_CONF="/etc/resolv.conf.dhcp"
+fi
+[ -e $RESOLV_CONF ] || touch $RESOLV_CONF
+[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
+[ -n "$subnet" ] && NETMASK="netmask $subnet"
+# Handle stateful DHCPv6 like DHCPv4
+[ -n "$ipv6" ] && ip="$ipv6/128"
+
+if [ -z "${IF_WAIT_DELAY}" ]; then
+	IF_WAIT_DELAY=10
+fi
+
+wait_for_ipv6_default_route() {
+	printf "Waiting for IPv6 default route to appear"
+	while [ $IF_WAIT_DELAY -gt 0 ]; do
+		if ip -6 route list | grep -q default; then
+			printf "\n"
+			return
+		fi
+		sleep 1
+		printf "."
+		: $((IF_WAIT_DELAY -= 1))
+	done
+	printf " timeout!\n"
+}
+
+case "$ACTION" in
+	deconfig)
+		/sbin/ifconfig $interface up
+		/sbin/ifconfig $interface 0.0.0.0
+
+		# drop info from this interface
+		# resolv.conf may be a symlink to /tmp/, so take care
+		TMPFILE=$(mktemp)
+		grep -vE "# $interface\$" $RESOLV_CONF > $TMPFILE
+		cat $TMPFILE > $RESOLV_CONF
+		rm -f $TMPFILE
+
+		if [ -x /usr/sbin/avahi-autoipd ]; then
+			/usr/sbin/avahi-autoipd -c $interface && /usr/sbin/avahi-autoipd -k $interface
+		fi
+		;;
+
+	leasefail|nak)
+		if [ -x /usr/sbin/avahi-autoipd ]; then
+			/usr/sbin/avahi-autoipd -c $interface || /usr/sbin/avahi-autoipd -wD $interface --no-chroot
+		fi
+		;;
+
+	renew|bound)
+		if [ -x /usr/sbin/avahi-autoipd ]; then
+			/usr/sbin/avahi-autoipd -c $interface && /usr/sbin/avahi-autoipd -k $interface
+		fi
+		/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
+		if [ -n "$ipv6" ] ; then
+			wait_for_ipv6_default_route
+		fi
+
+		# RFC3442: If the DHCP server returns both a Classless
+		# Static Routes option and a Router option, the DHCP
+		# client MUST ignore the Router option.
+		if [ -n "$staticroutes" ]; then
+			echo "deleting routers"
+			route -n | while read dest gw mask flags metric ref use iface; do
+				[ "$iface" != "$interface" -o "$gw" = "0.0.0.0" ] || \
+					route del -net "$dest" netmask "$mask" gw "$gw" dev "$interface"
+			done
+
+			# format: dest1/mask gw1 ... destn/mask gwn
+			set -- $staticroutes
+			while [ -n "$1" -a -n "$2" ]; do
+				route add -net "$1" gw "$2" dev "$interface"
+				shift 2
+			done
+		elif [ -n "$router" ] ; then
+			echo "deleting routers"
+			while route del default gw 0.0.0.0 dev $interface 2> /dev/null; do
+				:
+			done
+
+			for i in $router ; do
+				route add default gw $i dev $interface
+			done
+		fi
+
+		# drop info from this interface
+		# resolv.conf may be a symlink to /tmp/, so take care
+		TMPFILE=$(mktemp)
+		grep -vE "# $interface\$" $RESOLV_CONF > $TMPFILE
+		cat $TMPFILE > $RESOLV_CONF
+		rm -f $TMPFILE
+
+		# prefer rfc3397 domain search list (option 119) if available
+		if [ -n "$search" ]; then
+			search_list=$search
+		elif [ -n "$domain" ]; then
+			search_list=$domain
+		fi
+
+		[ -n "$search_list" ] &&
+			echo "search $search_list # $interface" >> $RESOLV_CONF
+
+		for i in $dns ; do
+			echo adding dns $i
+			echo "nameserver $i # $interface" >> $RESOLV_CONF
+		done
+		;;
+esac
+
+HOOK_DIR="$0.d"
+for hook in "${HOOK_DIR}/"*; do
+    [ -f "${hook}" -a -x "${hook}" ] || continue
+    "${hook}" "$ACTION"
+done
+
+exit 0

osdrv/interdrv/v2/pwm/pwm.c

@@ -191,6 +191,12 @@ static int pwm_cv_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 		return ret;
 	}
 
+	ret = pwm_cv_set_polarity(chip, pwm, state->polarity);
+	if (ret) {
+		dev_err(chip->dev, "pwm apply err\n");
+		return ret;
+	}
+
 	dev_dbg(chip->dev, "pwm_cv_apply state->enabled = %d\n", state->enabled);
 	if (state->enabled)
 		ret = pwm_cv_enable(chip, pwm);
@@ -244,7 +250,8 @@ static int pwm_cv_capture(struct pwm_chip *chip, struct pwm_device *pwm_dev,
 	result->duty_cycle = 0;
 
 	// Disable capture
-	writel(0x0, our_chip->base + REG_FREQEN);
+	value = readl(our_chip->base + REG_FREQEN) & (~(1 << (pwm_dev->hwpwm)));
+	writel(value, our_chip->base + REG_FREQEN);
 
 	return 0;
 }
@@ -255,8 +262,8 @@ static const struct pwm_ops pwm_cv_ops = {
 	.enable		= pwm_cv_enable,
 	.disable	= pwm_cv_disable,
 	.config		= pwm_cv_config,
-	.set_polarity	= pwm_cv_set_polarity,
-	/* .apply		= pwm_cv_apply, */
+	// .set_polarity	= pwm_cv_set_polarity,
+	.apply		= pwm_cv_apply,
 	.capture	= pwm_cv_capture,
 	.owner		= THIS_MODULE,
 };
@@ -284,6 +291,8 @@ static int pwm_cv_probe(struct platform_device *pdev)
 	chip->chip.ops = &pwm_cv_ops;
 	chip->chip.base = -1;
 	chip->polarity_mask = 0;
+	chip->chip.of_xlate = of_pwm_xlate_with_flags;
+	chip->chip.of_pwm_n_cells = 3;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	chip->base = devm_ioremap_resource(&pdev->dev, res);

ramdisk/configs/sg200x/onekernel_fixed_files.txt.sqsh

@@ -11,6 +11,8 @@ file /init ../target/init 775 0 0
 file /busybox ../target/busybox 775 0 0
 file /e2fsck ../target/e2fsck 775 0 0
 file /resize2fs ../target/resize2fs 775 0 0
+file /parted ../target/parted 775 0 0
+file /libc.so ../target/libc.so 775 0 0
 
 dir /proc 755 0 0
 dir /sys 755 0 0

ramdisk/configs/sg200x/overlayfs_fixed_files.txt.sqsh

@@ -11,6 +11,8 @@ file /init ../target/init 775 0 0
 file /busybox ../target/busybox 775 0 0
 file /e2fsck ../target/e2fsck 775 0 0
 file /resize2fs ../target/resize2fs 775 0 0
+file /parted ../target/parted 775 0 0
+file /libc.so ../target/libc.so 775 0 0
 
 dir /proc 755 0 0
 dir /sys 755 0 0

ramdisk/configs/sg200x/ramboot_fixed_files.txt

@@ -11,6 +11,8 @@ file /init ../target/init 775 0 0
 file /busybox ../target/busybox 775 0 0
 file /e2fsck ../target/e2fsck 775 0 0
 file /resize2fs ../target/resize2fs 775 0 0
+file /parted ../target/parted 775 0 0
+file /libc.so ../target/libc.so 775 0 0
 
 dir /proc 755 0 0
 dir /sys 755 0 0

ramdisk/configs/sg200x/sdboot_fixed_files.txt

@@ -11,6 +11,8 @@ file /init ../target/init 775 0 0
 file /busybox ../target/busybox 775 0 0
 file /e2fsck ../target/e2fsck 775 0 0
 file /resize2fs ../target/resize2fs 775 0 0
+file /parted ../target/parted 775 0 0
+file /libc.so ../target/libc.so 775 0 0
 
 dir /proc 755 0 0
 dir /sys 755 0 0

ramdisk/initramfs/musl_riscv64/init

@@ -47,23 +47,29 @@ msc() {
 	echo /dev/mmcblk0 > functions/mass_storage.disk0/lun.0/file
 	ls /sys/class/udc/ | cat > UDC
 	echo device > /proc/cviusb/otg_role
+	(
 	while true
 	do
 		sleep 10
 		sync
 	done
+	) &
+	/busybox sh
+	exit
 }
 
-mkdir /dev
+set -x
+
+mkdir -p /dev
 mount -t devtmpfs devtmpfs /dev
-mkdir /proc
+mkdir -p /proc
 mount -t proc proc /proc
-mkdir /sys
+mkdir -p /sys
 mount -t sysfs sysfs /sys
 mount -t configfs configfs /sys/kernel/config
 mount -t debugfs debugfs /sys/kernel/debug
 
-mkdir /boot
+mkdir -p /boot
 mount -o ro /dev/mmcblk0p1 /boot
 
 msc=0
@@ -86,6 +92,10 @@ then
 fi
 
 mkdir /realroot
+parted -s /dev/mmcblk0 "resizepart 2 -0"
+echo "yes
+100%
+" | parted ---pretend-input-tty /dev/mmcblk0 "resizepart 2 100%"
 e2fsck -fvp /dev/mmcblk0p2
 resize2fs /dev/mmcblk0p2
 mount -o rw /dev/mmcblk0p2 /realroot