From 6a244cf2e8b86fd790bd6443721da90dcaabd33b Mon Sep 17 00:00:00 2001 From: ryd Date: Sun, 28 Oct 2007 21:20:48 +0000 Subject: Initial OLPC target git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9457 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/olpc/image/Config.in | 35 +++++++++++++++ target/linux/olpc/image/Makefile | 82 ++++++++++++++++++++++++++++++++++++ target/linux/olpc/image/gen_image.sh | 45 ++++++++++++++++++++ target/linux/olpc/image/menu.lst | 15 +++++++ target/linux/olpc/image/olpc.fth | 4 ++ 5 files changed, 181 insertions(+) create mode 100644 target/linux/olpc/image/Config.in create mode 100644 target/linux/olpc/image/Makefile create mode 100755 target/linux/olpc/image/gen_image.sh create mode 100644 target/linux/olpc/image/menu.lst create mode 100644 target/linux/olpc/image/olpc.fth (limited to 'target/linux/olpc/image') diff --git a/target/linux/olpc/image/Config.in b/target/linux/olpc/image/Config.in new file mode 100644 index 000000000..6252ae6d1 --- /dev/null +++ b/target/linux/olpc/image/Config.in @@ -0,0 +1,35 @@ +config OLPC_GRUB_IMAGES + bool "Build GRUB images" + depends TARGET_olpc + depends TARGET_ROOTFS_EXT2FS || TARGET_ROOTFS_JFFS2 || TARGET_ROOTFS_SQUASHFS || TARGET_ROOTFS_ISO + select PACKAGE_grub + default y + +config OLPC_GRUB_IMAGES_PAD + bool "Pad GRUB images to filesystem size (for JFFS2)" + depends OLPC_GRUB_IMAGES + +config OLPC_GRUB_BAUDRATE + int "Serial port baud rate" + depends OLPC_GRUB_IMAGES + default 38400 + +config OLPC_GRUB_KERNELPART + int "Kernel partition size (in MB)" + depends OLPC_GRUB_IMAGES + default 4 + +config OLPC_GRUB_ROOTPART + string + prompt "Root partition on target device" if OLPC_GRUB_IMAGES + default "/dev/hda2" + help + The root partition on the final device. If you don't know, + you probably want the default (/dev/hda2). + +config OLPC_GRUB_BOOTOPTS + string + prompt "Extra kernel boot options" if OLPC_GRUB_IMAGES + default "" + help + If you don't know, just leave it blank. diff --git a/target/linux/olpc/image/Makefile b/target/linux/olpc/image/Makefile new file mode 100644 index 000000000..14050bb7f --- /dev/null +++ b/target/linux/olpc/image/Makefile @@ -0,0 +1,82 @@ +# +# Copyright (C) 2007 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# +include $(TOPDIR)/rules.mk +include $(INCLUDE_DIR)/image.mk + +export PATH=$(TARGET_PATH):/sbin +BOOTOPTS=$(strip $(subst ",, $(CONFIG_OLPC_GRUB_BOOTOPTS))) +ROOTPART=$(strip $(subst ",, $(CONFIG_OLPC_GRUB_ROOTPART))) +#"))")) # fix vim's broken syntax highlighting + + +ifeq ($(CONFIG_OLPC_GRUB_IMAGES),y) + define Image/cmdline/squashfs + block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=squashfs init=/etc/preinit + endef + + define Image/cmdline/jffs2-64k + block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=jffs2 init=/etc/preinit + endef + + define Image/cmdline/jffs2-128k + block2mtd.block2mtd=$(ROOTPART),131072,rootfs root=/dev/mtdblock0 rootfstype=jffs2 init=/etc/preinit + endef + + define Image/cmdline/ext2 + root=$(ROOTPART) rootfstype=ext2 init=/etc/preinit + endef + + define Image/Build/grub + # left here because the image builder doesnt need these + $(INSTALL_DIR) $(KDIR)/root.grub/boot/grub + $(CP) \ + $(KDIR)/*stage* \ + $(KDIR)/root.grub/boot/grub/ + $(CP) $(KDIR)/bzImage $(KDIR)/root.grub/boot/vmlinuz + $(CP) ./olpc.fth $(KDIR)/root.grub/boot/olpc.fth + sed \ + -e 's#@CMDLINE@#$(strip $(call Image/cmdline/$(1))) $(BOOTOPTS)#g' \ + -e 's#@BAUDRATE@#$(CONFIG_OLPC_GRUB_BAUDRATE)#g' \ + ./menu.lst > $(KDIR)/root.grub/boot/grub/menu.lst + PADDING="$(CONFIG_OLPC_GRUB_IMAGES_PAD)" PATH="$(TARGET_PATH)" ./gen_image.sh $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).image $(CONFIG_OLPC_GRUB_KERNELPART) $(KDIR)/root.grub $(CONFIG_TARGET_ROOTFS_FSPART) $(KDIR)/root.$(1) + $(call Image/Build/grub/$(1)) + endef +endif + +ifeq ($(CONFIG_OLPC_GRUB_IMAGES),y) + define Image/Prepare/grub + # for the image builder + $(CP) \ + $(STAGING_DIR_HOST)/usr/lib/grub/i386-pc/stage1 \ + $(STAGING_DIR_HOST)/usr/lib/grub/i386-pc/stage2 \ + $(STAGING_DIR_HOST)/usr/lib/grub/i386-pc/e2fs_stage1_5 \ + $(KDIR)/ + endef +endif + +define Image/Prepare + $(CP) $(LINUX_DIR)/arch/i386/boot/bzImage $(KDIR)/bzImage + $(call Image/Prepare/grub) +endef + +define Image/Build/squashfs + $(call prepare_generic_squashfs,$(KDIR)/root.squashfs) +endef + +define Image/BuildKernel + $(CP) $(KDIR)/bzImage $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinuz +endef + +define Image/Build + $(call Image/Build/$(1)) + $(call Image/Build/grub,$(1)) + $(CP) $(KDIR)/root.$(1) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).fs + $(CP) $(KDIR)/bzImage $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinuz +endef + +$(eval $(call BuildImage)) + diff --git a/target/linux/olpc/image/gen_image.sh b/target/linux/olpc/image/gen_image.sh new file mode 100755 index 000000000..d48e3720d --- /dev/null +++ b/target/linux/olpc/image/gen_image.sh @@ -0,0 +1,45 @@ +#!/usr/bin/env bash +# Copyright (C) 2006 OpenWrt.org +set -x +[ $# == 5 ] || { + echo "SYNTAX: $0 " + exit 1 +} + +OUTPUT="$1" +KERNELSIZE="$2" +KERNELDIR="$3" +ROOTFSSIZE="$4" +ROOTFSIMAGE="$5" + +rm -f "$OUTPUT" + +head=16 +sect=63 +cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512))) + +# create partition table +set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m` + +KERNELOFFSET="$(($1 / 512))" +KERNELSIZE="$(($2 / 512))" +ROOTFSOFFSET="$(($3 / 512))" +ROOTFSSIZE="$(($4 / 512))" + +BLOCKS="$((($KERNELSIZE / 2) - 1))" + +genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel" +dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc +[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE" +dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc +#rm -f "$OUTPUT.kernel" + +which chpax >/dev/null && chpax -zp $(which grub) +grub --batch --no-curses --no-floppy --device-map=/dev/null <