# uClinux2008.mk
# Makefile for Blackfin uClinux-dist 2008 versions
#
# NOTE: You need to install the 08 toolchain and uClibc:
#
#   (i)  blackfin-toolchain-08r1-8.i386.tar.gz to build.
#   (ii) blackfin-toolchain-uclibc-default-08r1-8.i386.tar.gz
#
# The output is a bootable uImage in images/uImage.

include rules.mk

UCLINUX_DIRNAME=uClinux-dist
UCLINUX_DIR=$(BUILD_DIR)/$(UCLINUX_DIRNAME)
UCLINUX_KERNEL_SRC=$(BUILD_DIR)/uClinux-dist/linux-2.6.x
UCLINUX_SOURCE=uClinux-dist-2008R1-RC8.tar.bz2
UCLINUX_SITE=http://blackfin.uclinux.org/gf/download/frsrelease/378/4237
UCLINUX_UNZIP=bzcat
TARGET_DIR=$(UCLINUX_DIR)/root

#---------------------------------------------------------------------------
#                    Downloaded source file Target
#---------------------------------------------------------------------------

$(DL_DIR)/$(UCLINUX_SOURCE):
	$(WGET) -P $(DL_DIR) $(UCLINUX_SITE)/$(UCLINUX_SOURCE)

#---------------------------------------------------------------------------
#                    Unpack and patch to support IP04 & ipkg
#---------------------------------------------------------------------------

$(UCLINUX_DIR)/.unpacked: $(DL_DIR)/$(UCLINUX_SOURCE)
	tar xjf $(DL_DIR)/$(UCLINUX_SOURCE) -C $(BUILD_DIR)
	mv uClinux-dist-2008R1-RC8 uClinux-dist
	patch -d $(BUILD_DIR) -uN -p0 < patch/ip04-2008.patch
	patch -d $(BUILD_DIR) -uN -p0 < patch/busybox.patch
	touch $(UCLINUX_DIR)/.unpacked

#---------------------------------------------------------------------------
#                    Configure for IP04
#---------------------------------------------------------------------------

$(UCLINUX_DIR)/.configured: $(UCLINUX_DIR)/.unpacked
	mkdir -p $(UCLINUX_DIR)/vendors/Rowetel/IP04/
	cp -af patch/vendors/Rowetel/IP04-2008/* $(UCLINUX_DIR)/vendors/Rowetel/IP04
	cp -af patch/vendors/Rowetel/vendor.mak $(UCLINUX_DIR)/vendors/Rowetel
	$(MAKE) -C $(UCLINUX_DIR) Rowetel/IP04_config
	touch $(UCLINUX_DIR)/.configured

#---------------------------------------------------------------------------
#                    create uImage
#---------------------------------------------------------------------------

uClinux: $(UCLINUX_DEP) $(UCLINUX_DIR)/.configured
	mkdir -p $(TARGET_DIR)/usr/doc
	cp -f doc/uImage.txt $(TARGET_DIR)/usr/doc

	$(MAKE) -C $(UCLINUX_DIR) ROMFSDIR=$(TARGET_DIR)
	gcc src/zeropad.c -o src/zeropad -Wall
	./src/zeropad uClinux-dist/images/uImage uClinux-dist/images/uImage_r3beta.ip08 0x20000

uClinux-unpacked: $(UCLINUX_DIR)/.unpacked

uClinux-configure: $(UCLINUX_DIR)/.configured

uClinux-clean:
	-$(MAKE) -C $(UCLINUX_DIR) clean

all: uClinux

#---------------------------------------------------------------------------
#                              CREATING PATCHES     
#---------------------------------------------------------------------------

# Generate patches between vanilla uClinux-dist tar ball and IP04
# version (IP04 only at this stage, pending approval by the astfin
# team). Run this target after you have made any changes to
# uClinux-dist to capture them to the patch and conf files.  This
# target captures the changes required to get the IP04 to boot
# uClinux, but doesn't capture any of the Asterisk/Zaptel stuff (see
# below for that).

UDO = uClinux-dist-orig
UD = uClinux-dist

uClinux-ip04-make-patch:

        # untar original, to save time we check if the orig is already there

	if [ ! -d $(UCLINUX_DIR)-orig ] ; then \
		mkdir -p tmp; cd tmp; \
	        tar xjf $(DL_DIR)/$(UCLINUX_SOURCE); \
		mv uClinux-dist-2008R1-RC8 $(UCLINUX_DIR)-orig; \
	fi

	# TODO - work out a rule/macro to do all this with less typing

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/arch/blackfin/Kconfig \
	$(UD)/linux-2.6.x/arch/blackfin/Kconfig \
	> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/arch/blackfin/mach-bf533/boards/Kconfig \
	$(UD)/linux-2.6.x/arch/blackfin/mach-bf533/boards/Kconfig \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/arch/blackfin/mach-bf533/boards/ip0x.c \
	$(UD)/linux-2.6.x/arch/blackfin/mach-bf533/boards/ip0x.c \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/include/asm-blackfin/mach-bf533/mem_init.h \
	$(UD)/linux-2.6.x/include/asm-blackfin/mach-bf533/mem_init.h \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/arch/blackfin/mach-bf533/boards/Makefile \
	$(UD)/linux-2.6.x/arch/blackfin/mach-bf533/boards/Makefile \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/drivers/mtd/maps/Kconfig \
	$(UD)/linux-2.6.x/drivers/mtd/maps/Kconfig \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/drivers/mtd/maps/bf5xx-flash.c \
	$(UD)/linux-2.6.x/drivers/mtd/maps/bf5xx-flash.c  \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/drivers/mtd/nand/bfin_nand.c \
	$(UD)/linux-2.6.x/drivers/mtd/nand/bfin_nand.c \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/drivers/mtd/nand/Kconfig \
	$(UD)/linux-2.6.x/drivers/mtd/nand/Kconfig \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/drivers/net/dm9000.c \
	$(UD)/linux-2.6.x/drivers/net/dm9000.c \
	>> $(PWD)/patch/ip04-2008.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/linux-2.6.x/drivers/serial/bfin_5xx.c \
	$(UD)/linux-2.6.x/drivers/serial/bfin_5xx.c \
	>> $(PWD)/patch/ip04-2008.patch

	# capture all the .config files for the IP04

	mkdir -p patch/vendors/Rowetel/IP04-2008
	cp -af $(UCLINUX_DIR)/vendors/Rowetel/IP04/* patch/vendors/Rowetel/IP04-2008
	cp $(UCLINUX_DIR)/.config patch/vendors/Rowetel/IP04-2008/config.device
	cp $(UCLINUX_DIR)/linux-2.6.x/.config patch/vendors/Rowetel/IP04-2008/config.linux-2.6.x	
	cp $(UCLINUX_DIR)/config/.config patch/vendors/Rowetel/IP04-2008/config.vendor-2.6.x 

	# files needed for adding ipkg to busybox.  This was unchanged from 
	# uClinux-dist 2007 so we use the same patch file

	-cd $(BUILD_DIR); diff -uN -x *.o -x *cmd -x *.a \
	$(UDO)/user/busybox/archival/libipkg \
	$(UD)/user/busybox/archival/libipkg \
	> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/archival/ipkg.c \
	$(UD)/user/busybox/archival/ipkg.c \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/archival/Config.in \
	$(UD)/user/busybox/archival/Config.in \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/archival/Kbuild \
	$(UD)/user/busybox/archival/Kbuild \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/archival/libunarchive/data_extract_all.c \
	$(UD)/user/busybox/archival/libunarchive/data_extract_all.c \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/archival/libunarchive/open_transformer.c \
	$(UD)/user/busybox/archival/libunarchive/open_transformer.c \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/archival/libunarchive/Kbuild \
	$(UD)/user/busybox/archival/libunarchive/Kbuild \
	>> $(PWD)/patch/busybox.patch

	# GOTCHA - this set up Blackfin busybox options, hard to find!

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/uclinux-configs/archival/Config.in \
	$(UD)/user/busybox/uclinux-configs/archival/Config.in \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/include/applets.h \
	$(UD)/user/busybox/include/applets.h \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/include/unarchive.h \
	$(UD)/user/busybox/include/unarchive.h \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/include/usage.h \
	$(UD)/user/busybox/include/usage.h \
	>> $(PWD)/patch/busybox.patch

	-cd $(BUILD_DIR); diff -uN \
	$(UDO)/user/busybox/Makefile \
	$(UD)/user/busybox/Makefile \
	>> $(PWD)/patch/busybox.patch