zynq: add new target

Add support for Xilinx ZC702 Dev board

Zynq target is using 4.4 kernel and mainline 2016.1 u-boot.

Patch is tested with Xilinx ZC702 Dev board with SD boot mode.

known issues:
 - no QSPI driver in 4.4 kernel: no QSPI flash support
 - USB is not working in 4.4 kernel

Signed-off-by: Jason Wu <jason.wu.misc@gmail.com>

 create mode 100644 package/boot/uboot-zynq/Makefile
 create mode 100644 target/linux/zynq/Makefile
 create mode 100644 target/linux/zynq/base-files.mk
 create mode 100755 target/linux/zynq/base-files/etc/board.d/02_network
 create mode 100644 target/linux/zynq/base-files/etc/config/network
 create mode 100644 target/linux/zynq/base-files/etc/inittab
 create mode 100644 target/linux/zynq/config-4.4
 create mode 100644 target/linux/zynq/image/Makefile
 create mode 100755 target/linux/zynq/image/mkits.sh
 create mode 100644 target/linux/zynq/patches-4.4/0001-arm-dts-zynq-zc702.dts-Set-default-rdinit-to-sbin-in.patch
 create mode 100644 target/linux/zynq/profiles/zc702.mk

SVN-Revision: 48697

2 files changed, 225 insertions, 0 deletions

diff --git a/target/linux/zynq/image/Makefile b/target/linux/zynq/image/Makefile
new file mode 100644
index 0000000000..2924a5d3ea
--- /dev/null
+++ b/target/linux/zynq/image/Makefile
@@ -0,0 +1,75 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+#################################################
+# Images
+#################################################
+
+define Image/boot-imgs
+	# Copy zImage to BIN_DIR
+	$(CP) $(KDIR)/zImage $(BIN_DIR)/$(IMG_PREFIX)-zImage
+
+	$(call Image/BuildKernel/MkuImage, none, $(KERNEL_LOADADDR), \
+		$(KERNEL_ENTRY_POINT), $(KDIR)/zImage, \
+		$(BIN_DIR)/$(IMG_PREFIX)-uImage)
+
+	$(call Image/BuildDTB,$(DTS_DIR)/$(DEVICE_DTS).dts,\
+		$(BIN_DIR)/$(IMG_PREFIX)-system.dtb)
+
+	$(call Image/mkfs/cpiogz)
+	$(call Image/mkfs/targz)
+
+	# Create uboot cpio.gz
+	mkimage -A arm -T ramdisk -C gzip -n "$(PROFILE) OpenWRT rootfs" \
+		-d $(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz \
+		$(BIN_DIR)/$(IMG_PREFIX)-uramdisk.image.gz
+
+	# create FIT image with rootfs
+	./mkits.sh \
+		-D $(1) -o $(KDIR)/fit-$(1).its -k $(KDIR)/zImage \
+		-d $(BIN_DIR)/$(IMG_PREFIX)-system.dtb \
+		-C none -a $(KERNEL_LOADADDR) -e $(KERNEL_ENTRY_POINT) \
+		-A $(ARCH) -v $(LINUX_VERSION) \
+		-r $(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz -z gzip
+	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1).itb
+	$(CP) $(KDIR)/fit-$(1).itb $(BIN_DIR)/$(IMG_PREFIX)-fit.itb
+	ln -fs $(IMG_PREFIX)-fit.itb $(BIN_DIR)/fit.itb
+
+endef
+
+#################################################
+# Devices
+#################################################
+
+# default kernel load address
+KERNEL_LOADADDR=0x8000
+KERNEL_ENTRY_POINT=0x8000
+
+### Device macros ###
+define Device/Default
+	IMG_PREFIX := zynq
+	DEVICE_DTS :=
+	PROFILE_SANITIZED :=
+endef
+
+DEVICE_VARS += DEVICE_DTS
+
+### ZC702 ###
+define Device/ZC702
+	DEVICE_DTS := zynq-zc702
+endef
+
+Image/boot-imgs/ZC702=$(call Image/boot-imgs,zc702)
+
+define Image/BuildKernel
+	$(eval $(call Device/$(PROFILE)))
+	$(call Image/boot-imgs/$(PROFILE))
+endef
+
+$(eval $(call BuildImage))
diff --git a/target/linux/zynq/image/mkits.sh b/target/linux/zynq/image/mkits.sh
new file mode 100755
index 0000000000..2b00d0fc43
--- /dev/null
+++ b/target/linux/zynq/image/mkits.sh
@@ -0,0 +1,150 @@
+#!/bin/bash
+#
+# Licensed under the terms of the GNU GPL License version 2 or later.
+#
+# Author: Peter Tyser <ptyser@xes-inc.com>
+#
+# U-Boot firmware supports the booting of images in the Flattened Image
+# Tree (FIT) format.  The FIT format uses a device tree structure to
+# describe a kernel image, device tree blob, ramdisk, etc.  This script
+# creates an Image Tree Source (.its file) which can be passed to the
+# 'mkimage' utility to generate an Image Tree Blob (.itb file).  The .itb
+# file can then be booted by U-Boot (or other bootloaders which support
+# FIT images).  See doc/uImage.FIT/howto.txt in U-Boot source code for
+# additional information on FIT images.
+#
+
+usage() {
+	echo "Usage: `basename $0` -A arch -C comp -a addr -e entry" \
+		"-v version -k kernel [-D name -d dtb] -o its_file"
+	echo -e "\t-A ==> set architecture to 'arch'"
+	echo -e "\t-C ==> set compression type 'comp'"
+	echo -e "\t-a ==> set load address to 'addr' (hex)"
+	echo -e "\t-e ==> set entry point to 'entry' (hex)"
+	echo -e "\t-v ==> set kernel version to 'version'"
+	echo -e "\t-k ==> include kernel image 'kernel'"
+	echo -e "\t-D ==> human friendly Device Tree Blob 'name'"
+	echo -e "\t-d ==> include Device Tree Blob 'dtb'"
+	echo -e "\t-r ==> include ramdisk"
+	echo -e "\t-z ==> ramdisk compression type"
+	echo -e "\t-o ==> create output file 'its_file'"
+	exit 1
+}
+
+while getopts ":A:a:C:D:d:e:k:o:v:r:z:" OPTION
+do
+	case $OPTION in
+		A ) ARCH=$OPTARG;;
+		a ) LOAD_ADDR=$OPTARG;;
+		C ) COMPRESS=$OPTARG;;
+		D ) DEVICE=$OPTARG;;
+		d ) DTB=$OPTARG;;
+		e ) ENTRY_ADDR=$OPTARG;;
+		k ) KERNEL=$OPTARG;;
+		o ) OUTPUT=$OPTARG;;
+		v ) VERSION=$OPTARG;;
+		r ) RAMDISK=$OPTARG;;
+		z ) RD_COMPRESS=$OPTARG;;
+		* ) echo "Invalid option passed to '$0' (options:$@)"
+		usage;;
+	esac
+done
+
+# Make sure user entered all required parameters
+if [ -z "${ARCH}" ] || [ -z "${COMPRESS}" ] || [ -z "${LOAD_ADDR}" ] || \
+	[ -z "${ENTRY_ADDR}" ] || [ -z "${VERSION}" ] || [ -z "${KERNEL}" ] || \
+	[ -z "${OUTPUT}" ]; then
+	usage
+fi
+
+ARCH_UPPER=`echo $ARCH | tr '[:lower:]' '[:upper:]'`
+
+# Conditionally create fdt information
+if [ -n "${DTB}" ]; then
+	FDT="
+		fdt@1 {
+			description = \"${ARCH_UPPER} OpenWrt ${DEVICE} device tree blob\";
+			data = /incbin/(\"${DTB}\");
+			type = \"flat_dt\";
+			arch = \"${ARCH}\";
+			compression = \"none\";
+			hash@1 {
+				algo = \"crc32\";
+			};
+			hash@2 {
+				algo = \"sha1\";
+			};
+		};
+"
+		CONF="			fdt = \"fdt@1\";"
+fi
+
+# Conditionally create ramdisk node
+if [ -n "${RAMDISK}" ]; then
+	RD_COMPRESS=${RD_COMPRESS:-none}
+	RD="
+		ramdisk@1 {
+			description = \"${ARCH_UPPER} OpenWrt ${DEVICE} ramdisk\";
+			data = /incbin/(\"${RAMDISK}\");
+			type = \"ramdisk\";
+			arch = \"${ARCH}\";
+			os = \"linux\";
+			compression = \"${RD_COMPRESS}\";
+			hash@1 {
+				algo = \"crc32\";
+			};
+			hash@2 {
+				algo = \"sha1\";
+			};
+		};
+"
+	if [ -z "${CONF}" ]; then
+		CONF="			ramdisk = \"ramdisk@1\";"
+	else
+		CONF="$CONF
+			ramdisk = \"ramdisk@1\";"
+	fi
+fi
+
+# Create a default, fully populated DTS file
+DATA="/dts-v1/;
+
+/ {
+	description = \"${ARCH_UPPER} OpenWrt FIT (Flattened Image Tree)\";
+	#address-cells = <1>;
+
+	images {
+		kernel@1 {
+			description = \"${ARCH_UPPER} OpenWrt Linux-${VERSION}\";
+			data = /incbin/(\"${KERNEL}\");
+			type = \"kernel\";
+			arch = \"${ARCH}\";
+			os = \"linux\";
+			compression = \"${COMPRESS}\";
+			load = <${LOAD_ADDR}>;
+			entry = <${ENTRY_ADDR}>;
+			hash@1 {
+				algo = \"crc32\";
+			};
+			hash@2 {
+				algo = \"sha1\";
+			};
+		};
+
+${RD}
+${FDT}
+
+	};
+
+	configurations {
+		default = \"config@1\";
+		config@1 {
+			description = \"OpenWrt\";
+			kernel = \"kernel@1\";
+${CONF}
+		};
+	};
+};"
+
+# Write .its file to disk
+echo "$DATA" > ${OUTPUT}