i2SOM:udev: add rule to mount part on NAND and eMMC

meta-i2som-nxp/recipes-core/udev/udev-extraconf/automount.rules

@@ -0,0 +1,31 @@
+# There are a number of modifiers that are allowed to be used in some
+# of the different fields. They provide the following subsitutions:
+#
+# %n the "kernel number" of the device.
+#    For example, 'sda3' has a "kernel number" of '3'
+# %e the smallest number for that name which does not matches an existing node
+# %k the kernel name for the device
+# %M the kernel major number for the device
+# %m the kernel minor number for the device
+# %b the bus id for the device
+# %c the string returned by the PROGRAM
+# %s{filename} the content of a sysfs attribute
+# %% the '%' char itself
+#
+
+# Boot partitions
+SUBSYSTEM=="block", ENV{ID_PART_ENTRY_NAME}=="linux*", ACTION=="add", RUN+="/etc/udev/scripts/mount_bootparts.sh", GOTO="automount_rules_end"
+
+# Update partition
+SUBSYSTEM=="block", ENV{ID_PART_ENTRY_NAME}=="update*", ACTION=="add", RUN+="/etc/udev/scripts/mount_partition.sh 'update'", GOTO="automount_rules_end"
+SUBSYSTEM=="mtd", ATTRS{name}=="update", ACTION=="add", RUN+="/etc/udev/scripts/mount_partition.sh 'update'", GOTO="automount_rules_end"
+
+# Recovery partition
+SUBSYSTEM=="block", ENV{ID_PART_ENTRY_NAME}=="recovery*", ACTION=="add", GOTO="automount_rules_end"
+SUBSYSTEM=="mtd", ATTRS{name}=="recovery", ACTION=="add", GOTO="automount_rules_end"
+
+# Media automounting
+SUBSYSTEM=="block", ACTION=="add"    RUN+="/etc/udev/scripts/mount.sh"
+SUBSYSTEM=="block", ACTION=="remove" RUN+="/etc/udev/scripts/mount.sh"
+SUBSYSTEM=="block", ACTION=="change", ENV{DISK_MEDIA_CHANGE}=="1" RUN+="/etc/udev/scripts/mount.sh"
+LABEL="automount_rules_end"

meta-i2som-nxp/recipes-core/udev/udev-extraconf/mount_bootparts.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+#===============================================================================
+#
+#  mount_bootparts.sh
+#
+#  Copyright (C) 2017 i2SOM Team.
+#  All rights reserved.
+#
+#  This program is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License version 2 as published by
+#  the Free Software Foundation.
+#
+#  !Description: Attempt to mount boot partitions read-only (called from udev)
+#
+#===============================================================================
+
+MOUNT="/bin/mount"
+
+# Use 'silent' if util-linux's mount (busybox's does not support that option)
+[ "$(readlink ${MOUNT})" = "/bin/mount.util-linux" ] && MOUNT="${MOUNT} -o silent"
+
+MOUNTPOINT="/mnt/${ID_PART_ENTRY_NAME}"
+mkdir -p ${MOUNTPOINT}
+if ! ${MOUNT} -t auto -r ${DEVNAME} ${MOUNTPOINT}; then
+	logger -t udev "mount_bootparts.sh: mount ${DEVNAME} under ${MOUNTPOINT} failed!"
+	rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+fi

meta-i2som-nxp/recipes-core/udev/udev-extraconf/mount_partition.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+#===============================================================================
+#
+#  mount_partition.sh
+#
+#  Copyright (C) 2017 i2SOM Team.
+#  All rights reserved.
+#
+#  This program is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License version 2 as published by
+#  the Free Software Foundation.
+#
+#  !Description: Attempt to mount the partition triggered by udev
+#
+#===============================================================================
+
+MOUNT="/bin/mount"
+PARTITION_NAME="${1}"
+MOUNTPOINT="/mnt/${PARTITION_NAME}"
+
+# Use 'silent' if util-linux's mount (busybox's does not support that option)
+[ "$(readlink ${MOUNT})" = "/bin/mount.util-linux" ] && MOUNT="${MOUNT} -o silent"
+
+if mkdir -p "${MOUNTPOINT}" && ! mountpoint -q "${MOUNTPOINT}"; then
+	if [ "${SUBSYSTEM}" = "block" ]; then
+		FSTYPE="$(blkid ${DEVNAME} | sed -e 's,.*TYPE="\([^"]\+\)".*,\1,g')"
+		if ! mount ${FSTYPE:+-t ${FSTYPE}} "${DEVNAME}" "${MOUNTPOINT}"; then
+			logger -t udev "ERROR: Could not mount '${PARTITION_NAME}' partition"
+			rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+		fi
+	elif [ "${SUBSYSTEM}" = "mtd" ]; then
+		# Attach and get UBI device number
+		dev_number="$(ubiattach -p ${DEVNAME} 2>/dev/null | sed -ne 's,.*device number \([0-9]\).*,\1,g;T;p' 2>/dev/null)"
+		# Check if volume exists.
+		if ubinfo "/dev/ubi${dev_number}" -N "${PARTITION_NAME}" >/dev/null 2>&1; then
+			# Mount the volume.
+			if ! mount -t ubifs "ubi${dev_number}:${PARTITION_NAME}" "${MOUNTPOINT}"; then
+				logger -t udev "ERROR: Could not mount '${PARTITION_NAME}' partition"
+				rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+			fi
+		else
+			logger -t udev "ERROR: Could not mount '${PARTITION_NAME}' partition, volume not found"
+			rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+		fi
+	fi
+fi

meta-i2som-nxp/recipes-core/udev/udev-extraconf_1.1.bbappend

@@ -0,0 +1,26 @@
+#
+# Copyright (C) 2017 i2SOM Team.
+#
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
+
+SRC_URI += " \
+    file://mount_bootparts.sh \
+    file://mount_partition.sh \
+"
+
+do_install_append() {
+	install -m 0755 ${WORKDIR}/mount_bootparts.sh ${D}${sysconfdir}/udev/scripts/
+	install -m 0755 ${WORKDIR}/mount_partition.sh ${D}${sysconfdir}/udev/scripts/
+
+	# Bluetooth tty symlink
+	if [ -n "${BT_TTY}" ]; then
+		printf "%s\n%s\n" \
+		       "# Symlink to the bluetooth tty" \
+		       "KERNEL==\"${BT_TTY}\", MODE=\"0660\", GROUP=\"dialout\", SYMLINK+=\"ttyBt\"" \
+		       >> ${D}${sysconfdir}/udev/rules.d/localextra.rules
+	fi
+}
+
+# BT_TTY is machine specific (defined in machine config file)
+PACKAGE_ARCH = "${MACHINE_ARCH}"