genode/tool/create_uboot

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#!/usr/bin/make -f
#
# \brief Tool for creating an MMC image with a platform specific U-Boot setup
# \author Martin Stein
# \date 2015-09-30
#
#
# Print help text
#
help:
$(ECHO)
$(ECHO) "Tool for creating an MMC image with a platform specific U-Boot setup"
$(ECHO)
$(ECHO) "usage:"
$(ECHO)
$(ECHO) " create_uboot <platform> [BUILD_DIR=<build-dir>]"
$(ECHO)
$(ECHO) " <platform> can be:"
$(ECHO) " 'hw_wand_quad'"
$(ECHO)
$(ECHO) " The image will be located at:"
$(ECHO) " $(UBOOT_BUILD_DIR)<platform>/$(shell basename $(MMC_IMG))"
$(ECHO)
PLATFORMS_ARM := hw_wand_quad
PLATFORMS := $(PLATFORMS_ARM)
# get targeted platform based on the make target
PLATFORM := $(firstword $(filter $(PLATFORMS),$(MAKECMDGOALS)))
# get Genode base directory based on the known location of this tool
GENODE_DIR := $(realpath $(dir $(firstword $(MAKEFILE_LIST)))/..)
UBOOT_URL := https://github.com/m-stein/uboot
UBOOT_DIR := $(GENODE_DIR)/contrib/uboot
UBOOT_TAG := $(UBOOT_DIR)/.gitignore
UBOOT_BRANCH := genode_$(PLATFORM)
UBOOT_BRANCH_TAG := $(UBOOT_DIR)/$(UBOOT_BRANCH)
UBOOT_BUILD_ROOT := $(UBOOT_DIR)/build
UBOOT_BUILD_DIR := $(UBOOT_BUILD_ROOT)/$(PLATFORM)
UBOOT_BUILD_CONF := $(UBOOT_BUILD_DIR)/.config
MMC_IMG := $(UBOOT_BUILD_DIR)/mmc_img
MMC_IMG_SIZE := 8M
SHELL := bash
VERBOSE := @
ECHO := @echo -e
BRIGHT_COL := \033[01;33m
DEFAULT_COL := \033[0m
#
# Determine architecture based on the given platform
#
ifeq ($(filter-out $(PLATFORMS_ARM),$(PLATFORM)),)
ARCH := arm
endif
UBOOT_MAKE := \
$(VERBOSE)make ARCH=$(ARCH) \
CROSS_COMPILE=/usr/local/genode-gcc/bin/genode-$(ARCH)- \
O=$(UBOOT_BUILD_DIR) \
-j4
#
# Platform settings
#
ifeq ($(PLATFORM), hw_wand_quad)
UBOOT_IMG := $(UBOOT_BUILD_DIR)/u-boot.img
UBOOT_IMG_SPL := $(UBOOT_BUILD_DIR)/SPL
UBOOT_IMGS := $(UBOOT_IMG) $(UBOOT_IMG_SPL)
UBOOT_CONF := wandboard_config
FINISH_IMAGE := \
dd if=$(UBOOT_IMG_SPL) of=$(MMC_IMG) bs=1k seek=1 conv=notrunc,fsync; \
dd if=$(UBOOT_IMG) of=$(MMC_IMG) bs=1k seek=69 conv=notrunc,fsync;
endif
#
# Generic rules for the creation of the image
#
$(PLATFORM): $(MMC_IMG)
$(MMC_IMG): $(UBOOT_IMGS)
$(ECHO) "$(BRIGHT_COL)Composing MMC image...$(DEFAULT_COL)"
$(VERBOSE)dd if=/dev/zero of=$(MMC_IMG) bs=$(MMC_IMG_SIZE) seek=1 count=0
$(VERBOSE)$(FINISH_IMAGE)
$(ECHO)
$(ECHO) "Successfully created MMC image."
$(ECHO) "You can install the image on an empty MMC for example via:"
$(ECHO) "sudo dd if=$(MMC_IMG) of=/dev/<YOUR_MMC> conv=fsync"
$(ECHO)
$(UBOOT_IMGS): $(UBOOT_BUILD_CONF) $(UBOOT_DIR)
$(ECHO) "$(BRIGHT_COL)Building U-Boot images...$(DEFAULT_COL)"
$(UBOOT_MAKE) -C $(UBOOT_BUILD_DIR)
$(UBOOT_BUILD_CONF): $(UBOOT_BRANCH_TAG)
$(ECHO) "$(BRIGHT_COL)Building U-Boot config...$(DEFAULT_COL)"
$(VERBOSE)mkdir -p $(UBOOT_BUILD_DIR)
$(UBOOT_MAKE) -C $(UBOOT_DIR) $(UBOOT_CONF)
$(UBOOT_BRANCH_TAG): $(UBOOT_TAG)
$(VERBOSE)git -C $(UBOOT_DIR) checkout $(UBOOT_BRANCH)
$(UBOOT_TAG):
$(ECHO) "$(BRIGHT_COL)Downloading U-Boot sources...$(DEFAULT_COL)"
$(VERBOSE)git clone $(UBOOT_URL) $(UBOOT_DIR)
.PHONY: $(PLATFORM)
#
# Clean-up rules
#
clean:
rm -rf $(UBOOT_BUILD_ROOT)
cleanall:
rm -rf $(UBOOT_DIR)