libfdt: modify makefile

update LIBFDT to LIBC_FDT
update CONFIG_LIBFDT_DTC_VERSION to CONFIG_LIBC_FDT_DTC_VERSION
move dtc source code to fdt/dtc
move version_gen.h from apps/system/fdt to current dir

Signed-off-by: liaoao <liaoao@xiaomi.com>

boards/arm64/qemu/qemu-armv8a/configs/nsh/defconfig

@@ -43,7 +43,7 @@ CONFIG_HAVE_CXXINITIALIZE=y
 CONFIG_IDLETHREAD_STACKSIZE=8192
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_INTELHEX_BINARY=y
-CONFIG_LIBFDT=y
+CONFIG_LIBC_FDT=y
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512

libs/libc/.gitignore

@@ -1,4 +1,2 @@
 /exec_symtab.c
 /modlib_symtab.c
-/dtc
-/dtc.zip

libs/libc/fdt/.gitignore

@@ -0,0 +1,2 @@
+dtc.zip
+dtc/

libs/libc/fdt/CMakeLists.txt

@@ -17,9 +17,9 @@
 # the License.
 #
 # ##############################################################################
-if(CONFIG_LIBFDT)
+if(CONFIG_LIBC_FDT)
 
-  set(VERSION CONFIG_LIBFDT_DTC_VERSION)
+  set(VERSION CONFIG_LIBC_FDT_DTC_VERSION)
 
   FetchContent_Declare(
     dtc URL https://github.com/dgibson/dtc/archive/v$(VERSION).zip)

libs/libc/fdt/Kconfig

@@ -3,18 +3,18 @@
 # see the file kconfig-language.txt in the NuttX tools repository.
 #
 
-config LIBFDT
+config LIBC_FDT
 	bool "Flattened Device Tree Library"
 	default n
 	---help---
 		Enable or disable Flattened Device Tree Library features.
 
-if LIBFDT
+if LIBC_FDT
 
-config LIBFDT_DTC_VERSION
-	string "LIBFDT DTC Version"
+config LIBC_FDT_DTC_VERSION
+	string "LIBC FDT DTC Version"
 	default "1.7.0"
 	---help---
 		Version of DTC source code to download from github.
 
-endif # LIBFDT
+endif # LIBC_FDT

libs/libc/fdt/Make.defs

@@ -18,16 +18,17 @@
 #
 ############################################################################
 
-ifeq ($(CONFIG_LIBFDT),y)
+ifeq ($(CONFIG_LIBC_FDT),y)
 
-VERSION=$(CONFIG_LIBFDT_DTC_VERSION)
+VERSION=$(CONFIG_LIBC_FDT_DTC_VERSION)
 
 # Download and unpack tarball if no git repo found
-ifeq ($(wildcard dtc/.git),)
+ifeq ($(wildcard fdt/dtc/.git),)
 dtc:
 	$(call DOWNLOAD,https://github.com/dgibson/dtc/archive,v$(VERSION).zip,dtc.zip)
-	$(Q) unzip -o dtc.zip
-	$(Q) mv dtc-$(VERSION) dtc
+	$(Q) mv dtc.zip fdt/dtc.zip
+	$(Q) unzip -o fdt/dtc.zip -d fdt
+	$(Q) mv fdt/dtc-$(VERSION) fdt/dtc
 else
 dtc:
 endif
@@ -45,16 +46,16 @@ CSRCS += fdt_addresses.c
 CSRCS += fdt_overlay.c
 CSRCS += fdt_check.c
 
-CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)libs$(DELIM)libc$(DELIM)dtc$(DELIM)libfdt$(DELIM)
+CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)libs$(DELIM)libc$(DELIM)fdt$(DELIM)dtc$(DELIM)libfdt
 
-VPATH += dtc/libfdt
-SUBDIRS += dtc/libfdt
-DEPPATH += --dep-path dtc/libfdt
+VPATH += fdt/dtc/libfdt
+SUBDIRS += fdt/dtc/libfdt
+DEPPATH += --dep-path fdt/dtc/libfdt
 
 distclean::
-ifeq ($(wildcard dtc/.git),)
-	$(call DELDIR, dtc)
-	$(call DELFILE, dtc.zip)
+ifeq ($(wildcard fdt/dtc/.git),)
+	$(call DELDIR, fdt/dtc)
+	$(call DELFILE, fdt/dtc.zip)
 endif
 
 endif

libs/libc/fdt/version_gen.h

@@ -0,0 +1,26 @@
+/****************************************************************************
+ * libs/libc/fdt/version_gen.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __LIBS_LIBC_FDT_VERSION_GEN_H
+#define __LIBS_LIBC_FDT_VERSION_GEN_H
+
+#define DTC_VERSION ("DTC "CONFIG_LIBC_FDT_DTC_VERSION)
+
+#endif /* __LIBS_LIBC_FDT_VERSION_GEN_H */