target: socfpga: Add Altera SoCFPGA support

This patch adds support for the Altera SoCFPGA target.
Both generic target and Terasic SoCkit boards are supported.

Signed-off-by: Marek Vasut <marex@denx.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@49367 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 200 insertions, 0 deletions

diff --git a/target/linux/socfpga/base-files/lib/preinit/03_socfpga_detect b/target/linux/socfpga/base-files/lib/preinit/03_socfpga_detect
new file mode 100644
index 0000000000..fc2f20a31f
--- /dev/null
+++ b/target/linux/socfpga/base-files/lib/preinit/03_socfpga_detect
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+do_socfpga_detect() {
+	. /lib/socfpga.sh
+
+	socfpga_board_detect
+}
+
+boot_hook_add preinit_main do_socfpga_detect
diff --git a/target/linux/socfpga/base-files/lib/preinit/79_move_config b/target/linux/socfpga/base-files/lib/preinit/79_move_config
new file mode 100644
index 0000000000..89f62d52f1
--- /dev/null
+++ b/target/linux/socfpga/base-files/lib/preinit/79_move_config
@@ -0,0 +1,18 @@
+#!/bin/sh
+# Copyright (C) 2015 OpenWrt.org
+
+move_config() {
+	. /lib/socfpga.sh
+	. /lib/upgrade/sockit.sh
+
+	local board=$(socfpga_board_name)
+
+	# Restore configuration
+	if [ "${board}" = "socfpga-sockit" ] ; then
+		mount -o rw,noatime "$CFGPART" /mnt
+		[ -e "/mnt/sysupgrade.tgz" ] && mv -f /mnt/sysupgrade.tgz /
+		umount /mnt
+	fi
+}
+
+boot_hook_add preinit_mount_root move_config
diff --git a/target/linux/socfpga/base-files/lib/socfpga.sh b/target/linux/socfpga/base-files/lib/socfpga.sh
new file mode 100755
index 0000000000..26735ac2d4
--- /dev/null
+++ b/target/linux/socfpga/base-files/lib/socfpga.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+#
+# Copyright (C) 2010-2013 OpenWrt.org
+#
+
+SOCFPGA_BOARD_NAME=
+SOCFPGA_MODEL=
+
+socfpga_board_detect() {
+	local machine
+	local name
+
+	machine=$(cat /proc/device-tree/model)
+
+	case "$machine" in
+	"Terasic SoCkit")
+		name="socfpga-sockit"
+		;;
+	*)
+		name="generic"
+		;;
+	esac
+
+	[ -z "$SOCFPGA_BOARD_NAME" ] && SOCFPGA_BOARD_NAME="$name"
+	[ -z "$SOCFPGA_MODEL" ] && SOCFPGA_MODEL="$machine"
+
+	[ -e "/tmp/sysinfo/" ] || mkdir -p "/tmp/sysinfo/"
+
+	echo "$SOCFPGA_BOARD_NAME" > /tmp/sysinfo/board_name
+	echo "$SOCFPGA_MODEL" > /tmp/sysinfo/model
+}
+
+socfpga_board_name() {
+	local name
+
+	[ -f /tmp/sysinfo/board_name ] || socfpga_board_detect
+	[ -f /tmp/sysinfo/board_name ] && name=$(cat /tmp/sysinfo/board_name)
+
+	# Name is too generic, use model
+	if [ "$name" = "altr,socfpga-cyclone5" ] ; then
+		socfpga_board_detect
+		name=$(cat /tmp/sysinfo/board_name)
+	fi
+
+	[ -z "$name" ] && name="unknown"
+
+	echo "$name"
+}
diff --git a/target/linux/socfpga/base-files/lib/upgrade/platform.sh b/target/linux/socfpga/base-files/lib/upgrade/platform.sh
new file mode 100755
index 0000000000..d65e11ebda
--- /dev/null
+++ b/target/linux/socfpga/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,37 @@
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+
+. /lib/socfpga.sh
+
+RAMFS_COPY_BIN="/bin/mkdir /bin/touch /bin/mknod"
+RAMFS_COPY_DATA=/lib/socfpga.sh
+
+platform_check_image() {
+	local board=$(socfpga_board_name)
+
+	[ "$#" -gt 1 ] && return 1
+
+	case "$board" in
+	"socfpga-sockit")
+		platform_do_check_sockit "$ARGV"
+		return 0;
+		;;
+	esac
+
+	echo "Sysupgrade is not yet supported on $board."
+	return 1
+}
+
+platform_do_upgrade() {
+	local board=$(socfpga_board_name)
+
+	case "$board" in
+	"socfpga-sockit")
+		platform_do_upgrade_sockit "$ARGV"
+		;;
+	*)
+		default_do_upgrade "$ARGV"
+		;;
+	esac
+}
diff --git a/target/linux/socfpga/base-files/lib/upgrade/sockit.sh b/target/linux/socfpga/base-files/lib/upgrade/sockit.sh
new file mode 100644
index 0000000000..e9268cf6d2
--- /dev/null
+++ b/target/linux/socfpga/base-files/lib/upgrade/sockit.sh
@@ -0,0 +1,88 @@
+#
+# Copyright (C) 2014-2015 OpenWrt.org
+#
+
+BOOTPART=/dev/mmcblk0p2
+CFGPART=/dev/mmcblk0p3
+
+identify_magic() {
+	local magic=$1
+	case "$magic" in
+		"55424923")
+			echo "ubi"
+			;;
+		"31181006")
+			echo "ubifs"
+			;;
+		"68737173")
+			echo "squashfs"
+			;;
+		"d00dfeed")
+			echo "fit"
+			;;
+		"00000000")
+			echo "ext4"
+			;;
+		"4349"*)
+			echo "combined"
+			;;
+		*)
+			echo "unknown $magic"
+			;;
+	esac
+}
+
+get_magic_long_tar() {
+	( tar xf $1 $2 -O | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
+}
+
+identify_tar() {
+	identify_magic $(get_magic_long_tar "$1" "$2")
+}
+
+platform_do_check_sockit() {
+	local board=$(socfpga_board_name)
+	local magic_long="$(get_magic_long "$1")"
+	echo "magic = $magic_long"
+
+	if [ "$magic_long" = "73797375" ] ; then
+		local rootfs_type="$(identify_tar "$1" sysupgrade-$board/root)"
+		if [ "$rootfs_type" = "ubifs" ] ; then
+			nand_do_platform_check $board $1
+			return 0;
+		fi
+		[ "$rootfs_type" = "ext4" ] && return 0
+
+		echo "Unknown rootfs type $rootfs_type !"
+	fi
+
+	return 1
+}
+
+platform_do_upgrade_sockit() {
+	local board=$(socfpga_board_name)
+	local magic_long="$(get_magic_long "$1")"
+	echo "magic = $magic_long"
+
+	if [ "$magic_long" = "73797375" ] ; then
+		local rootfs_type="$(identify_tar "$1" sysupgrade-$board/root)"
+		if [ "$rootfs_type" = "ext4" ] ; then
+			sync
+			tar xf "$1" sysupgrade-$board/root -O | \
+				dd of="$BOOTPART" bs=512 conv=fsync
+			return 0
+		fi
+
+		echo "Unknown rootfs type $rootfs_type !"
+	fi
+
+	return 1
+}
+
+platform_copy_config() {
+	if [ -b "$CFGPART" ]; then
+		mount -o rw,noatime "$CFGPART" /mnt
+		cp -af "$CONF_TAR" /mnt/
+		umount /mnt
+	fi
+}