board/maix-bit: add cmake support

This adds initial CMake support for `maix-bit` device.

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>

Author: yf13

arch/risc-v/src/k210/CMakeLists.txt

@@ -0,0 +1,31 @@
+# ##############################################################################
+# arch/risc-v/src/k210/CMakeLists.txt
+#
+# 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.
+#
+# ##############################################################################
+
+set(SRCS k210_head.S k210_start.c k210_irq.c k210_irq_dispatch.c)
+
+list(APPEND SRCS k210_timerisr.c k210_allocateheap.c k210_clockconfig.c)
+
+list(APPEND SRCS k210_lowputc.c k210_serial.c k210_fpioa.c k210_gpiohs.c)
+
+if(CONFIG_BUILD_PROTECTED)
+  list(APPEND SRCS k210_userspace.c)
+endif()
+
+target_sources(arch PRIVATE ${SRCS})

boards/risc-v/k210/maix-bit/CMakeLists.txt

@@ -0,0 +1,21 @@
+# ##############################################################################
+# boards/risc-v/k210/maix-bit/CMakeLists.txt
+#
+# 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.
+#
+# ##############################################################################
+
+add_subdirectory(src)

boards/risc-v/k210/maix-bit/src/CMakeLists.txt

@@ -0,0 +1,39 @@
+# ##############################################################################
+# boards/risc-v/k230/canmv230/src/CMakeLists.txt
+#
+# 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.
+#
+# ##############################################################################
+
+set(SRCS k210_bringup.c k210_boot.c)
+
+if(CONFIG_BOARDCTL)
+  list(APPEND SRCS k210_appinit.c)
+endif()
+
+if(CONFIG_ARCH_LEDS)
+  list(APPEND SRCS k210_leds.c)
+endif()
+
+if(CONFIG_DEV_GPIO)
+  list(APPEND SRCS k210_gpio.c)
+endif()
+
+target_sources(board PRIVATE ${SRCS})
+
+set(LDFILE ld.script)
+
+set_property(GLOBAL PROPERTY LD_SCRIPT "${NUTTX_BOARD_DIR}/scripts/${LDFILE}")