* powerpc: add device tree compiler and oftree support

git-svn-id: https://svn.pengutronix.de/svn/ptxdist/trunks/ptxdist-trunk@7025 33e552b5-05e3-0310-8538-816dae2090ed

6 files changed, 229 insertions, 0 deletions

diff --git a/rules/Kconfig b/rules/Kconfig
index a126699eb..d848e8243 100644
--- a/rules/Kconfig
+++ b/rules/Kconfig
@@ -40,6 +40,7 @@ endmenu
 menu "Core (Kernel, libc, locales)  "
 source "rules/klibc.in"
 source "rules/kernel.in"
+source "rules/dtc.in"
 source "rules/libc.in"
 source "rules/gcclibs.in"
 source "rules/locales.in"
diff --git a/rules/dtc.in b/rules/dtc.in
new file mode 100644
index 000000000..0b9df8032
--- /dev/null
+++ b/rules/dtc.in
@@ -0,0 +1,27 @@
+menuconfig DTC
+	bool
+	depends on ARCH_PPC
+	select HOST_DTC
+	select KERNEL
+	prompt "Build device tree             "
+	default y
+	help
+	  Select this to build a device tree for your board.
+	  You will find the device tree binary blob under
+	  images/oftree in your workspace.
+
+
+config DTC_OFTREE_DTS
+	string "source dts file"
+	depends on DTC
+	default "${KERNEL_DIR}/arch/powerpc/boot/dts/pcm030.dts"
+	help
+	  Select the dts file to use for the device tree binary
+	  blob generation. Default is to use the one shipped with
+	  the kernel.
+
+config DTC_EXTRA_ARGS
+	string "extra options passed to dtc"
+	depends on DTC
+	default "-V 0x10"
+
diff --git a/rules/dtc.make b/rules/dtc.make
new file mode 100644
index 000000000..27333169b
--- /dev/null
+++ b/rules/dtc.make
@@ -0,0 +1,93 @@
+# -*-makefile-*-
+# $Id: template 6655 2007-01-02 12:55:21Z rsc $
+#
+# Copyright (C) 2007 by Sascha Hauer
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+#
+# We provide this package
+#
+PACKAGES-$(PTXCONF_DTC) += dtc
+
+# ----------------------------------------------------------------------------
+# Get
+# ----------------------------------------------------------------------------
+
+dtc_get: $(STATEDIR)/dtc.get
+
+$(STATEDIR)/dtc.get: $(dtc_get_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+$(DTC_SOURCE):
+	@$(call targetinfo, $@)
+	@$(call get, DTC)
+
+# ----------------------------------------------------------------------------
+# Extract
+# ----------------------------------------------------------------------------
+
+dtc_extract: $(STATEDIR)/dtc.extract
+
+$(STATEDIR)/dtc.extract: $(dtc_extract_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Prepare
+# ----------------------------------------------------------------------------
+
+dtc_prepare: $(STATEDIR)/dtc.prepare
+
+$(STATEDIR)/dtc.prepare: $(dtc_prepare_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Compile
+# ----------------------------------------------------------------------------
+
+dtc_compile: $(STATEDIR)/dtc.compile
+
+$(STATEDIR)/dtc.compile: $(dtc_compile_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Install
+# ----------------------------------------------------------------------------
+
+dtc_install: $(STATEDIR)/dtc.install
+
+$(STATEDIR)/dtc.install: $(dtc_install_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Target-Install
+# ----------------------------------------------------------------------------
+
+dtc_targetinstall: $(STATEDIR)/dtc.targetinstall
+
+$(STATEDIR)/dtc.targetinstall: $(dtc_targetinstall_deps_default)
+	@$(call targetinfo, $@)
+	PATH=$(HOST_PATH) dtc $(PTXCONF_DTC_EXTRA_ARGS) -I dts -O dtb \
+		$(PTXCONF_DTC_OFTREE_DTS) > $(IMAGEDIR)/oftree
+	
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Clean
+# ----------------------------------------------------------------------------
+
+dtc_clean:
+	rm -rf $(STATEDIR)/dtc.*
+	rm -rf $(IMAGEDIR)/dtc_*
+	rm -rf $(DTC_DIR)
+
+# vim: syntax=make
diff --git a/rules/host-dtc.in b/rules/host-dtc.in
new file mode 100644
index 000000000..c017131d8
--- /dev/null
+++ b/rules/host-dtc.in
@@ -0,0 +1,10 @@
+menuconfig HOST_DTC
+	depends on ARCH_PPC
+	bool
+	prompt "device tree compiler (dtc)"
+	default y
+	help
+	  Kernels compiled with arch=powerpc need a device tree
+	  for startup. The device tree compiler (DTC) is used
+	  to generate this tree from a dts (device tree source)
+	  file usually shipped with the kernel.
diff --git a/rules/host-dtc.make b/rules/host-dtc.make
new file mode 100644
index 000000000..8a2819781
--- /dev/null
+++ b/rules/host-dtc.make
@@ -0,0 +1,97 @@
+# -*-makefile-*-
+# $Id$
+#
+# Copyright (C) 2007 by Sascha Hauer
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+#
+# We provide this package
+#
+HOST_PACKAGES-$(PTXCONF_HOST_DTC) += host-dtc
+
+#
+# Paths and names
+#
+HOST_DTC_VERSION	:= git-20070301
+HOST_DTC		:= dtc-$(HOST_DTC_VERSION)
+HOST_DTC_SUFFIX		:= tar.gz
+HOST_DTC_URL		:= http://www.pengutronix.de/software/ptxdist/temporary-src/$(HOST_DTC).$(HOST_DTC_SUFFIX)
+HOST_DTC_SOURCE		:= $(SRCDIR)/$(HOST_DTC).$(HOST_DTC_SUFFIX)
+HOST_DTC_DIR		:= $(HOST_BUILDDIR)/$(HOST_DTC)
+
+# ----------------------------------------------------------------------------
+# Get
+# ----------------------------------------------------------------------------
+
+host-dtc_get: $(STATEDIR)/host-dtc.get
+
+$(STATEDIR)/host-dtc.get: $(host-dtc_get_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+$(HOST_DTC_SOURCE):
+	@$(call targetinfo, $@)
+	@$(call get, HOST_DTC)
+
+# ----------------------------------------------------------------------------
+# Extract
+# ----------------------------------------------------------------------------
+
+host-dtc_extract: $(STATEDIR)/host-dtc.extract
+
+$(STATEDIR)/host-dtc.extract: $(host-dtc_extract_deps_default)
+	@$(call targetinfo, $@)
+	@$(call clean, $(HOST_DTC_DIR))
+	@$(call extract, HOST_DTC, $(HOST_BUILDDIR))
+	@$(call patchin, HOST_DTC, $(HOST_DTC_DIR))
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Prepare
+# ----------------------------------------------------------------------------
+
+host-dtc_prepare: $(STATEDIR)/host-dtc.prepare
+
+HOST_DTC_PATH	:= PATH=$(HOST_PATH)
+HOST_DTC_ENV 	:= $(HOST_ENV)
+
+$(STATEDIR)/host-dtc.prepare: $(host-dtc_prepare_deps_default)
+	@$(call targetinfo, $@)
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Compile
+# ----------------------------------------------------------------------------
+
+host-dtc_compile: $(STATEDIR)/host-dtc.compile
+
+$(STATEDIR)/host-dtc.compile: $(host-dtc_compile_deps_default)
+	@$(call targetinfo, $@)
+	cd $(HOST_DTC_DIR) && $(HOST_DTC_PATH) $(MAKE) $(PARALLELMFLAGS)
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Install
+# ----------------------------------------------------------------------------
+
+host-dtc_install: $(STATEDIR)/host-dtc.install
+
+$(STATEDIR)/host-dtc.install: $(host-dtc_install_deps_default)
+	@$(call targetinfo, $@)
+	cp $(HOST_DTC_DIR)/dtc $(PTXCONF_HOST_PREFIX)/bin/dtc
+	@$(call touch, $@)
+
+# ----------------------------------------------------------------------------
+# Clean
+# ----------------------------------------------------------------------------
+
+host-dtc_clean:
+	rm -rf $(STATEDIR)/host-dtc.*
+	rm -rf $(HOST_DTC_DIR)
+
+# vim: syntax=make
diff --git a/rules/hosttools.in b/rules/hosttools.in
index 3bafda20c..76ffb5201 100644
--- a/rules/hosttools.in
+++ b/rules/hosttools.in
@@ -33,6 +33,7 @@ source "rules/host-mico.in"
 source "rules/host-qte.in"
 source "rules/host-slirp.in"
 source "rules/host-cmake.in"
+source "rules/host-dtc.in"
 
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