openwrt/target/linux/ath79/image/lzma-loader/Makefile

#
# Copyright (C) 2011 OpenWrt.org
# Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

include $(TOPDIR)/rules.mk

LZMA_TEXT_START	:= 0x80a00000
LOADADDR	:= 0x80060000
LOADER		:= loader.bin
LOADER_NAME	:= $(basename $(notdir $(LOADER)))
LOADER_DATA 	:=
TARGET_DIR	:=
FLASH_OFFS	:=
FLASH_MAX	:=
BOARD		:=

ifeq ($(TARGET_DIR),)
TARGET_DIR	:= $(KDIR)
endif

LOADER_BIN	:= $(TARGET_DIR)/$(LOADER_NAME).bin
LOADER_GZ	:= $(TARGET_DIR)/$(LOADER_NAME).gz
LOADER_ELF	:= $(TARGET_DIR)/$(LOADER_NAME).elf

PKG_NAME := lzma-loader
PKG_BUILD_DIR := $(KDIR)/$(PKG_NAME)

.PHONY : loader-compile loader.bin loader.elf loader.gz

$(PKG_BUILD_DIR)/.prepared:
	mkdir $(PKG_BUILD_DIR)
	$(CP) ./src/* $(PKG_BUILD_DIR)/
	touch $@

loader-compile: $(PKG_BUILD_DIR)/.prepared
	$(MAKE) -C $(PKG_BUILD_DIR) CROSS_COMPILE="$(TARGET_CROSS)" \
		LZMA_TEXT_START=$(LZMA_TEXT_START) \
		LOADADDR=$(LOADADDR) \
		LOADER_DATA=$(LOADER_DATA) \
		FLASH_OFFS=$(FLASH_OFFS) \
		FLASH_MAX=$(FLASH_MAX) \
		BOARD="$(BOARD)" \
		clean all

loader.gz: $(PKG_BUILD_DIR)/loader.bin
	# Workaround for buggy bootloaders: Some devices
	# (TP-Link TL-WR1043ND v1) don't work correctly when
	# the uncompressed loader is too small (probably a cache
	# invalidation issue)
	dd if=$< bs=512K conv=sync | gzip -nc9 > $(LOADER_GZ)

loader.elf: $(PKG_BUILD_DIR)/loader.elf
	$(CP) $< $(LOADER_ELF)

loader.bin: $(PKG_BUILD_DIR)/loader.bin
	$(CP) $< $(LOADER_BIN)

download:
prepare: $(PKG_BUILD_DIR)/.prepared
compile: loader-compile

install:

clean:
	rm -rf $(PKG_BUILD_DIR)