Implement reset handler for remoteproc

Use the reset controller driver mechanism to control the Ethos-U
subsystem remoteproc driver.

Change-Id: If180d5b922f8b1cd245af7f922911c17ecd313a3
diff --git a/remoteproc/CMakeLists.txt b/remoteproc/CMakeLists.txt
new file mode 100644
index 0000000..9c88df1
--- /dev/null
+++ b/remoteproc/CMakeLists.txt
@@ -0,0 +1,54 @@
+#
+# Copyright (c) 2020-2021 Arm Limited. All rights reserved.
+#
+# This program is free software and is provided to you under the terms of the
+# GNU General Public License version 2 as published by the Free Software
+# Foundation, and any use by you of this program is subject to the terms
+# of such GNU licence.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can access it online at
+# http://www.gnu.org/licenses/gpl-2.0.html.
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+cmake_minimum_required(VERSION 3.0.2)
+
+# Set the project name and version
+project("ethosu_remoteproc" VERSION 1.0)
+
+# Make sure KDIR is set
+set(KDIR "" CACHE PATH "Path to Linux kernel sources")
+if (NOT EXISTS ${KDIR})
+    message(FATAL_ERROR "Can't build kernel module without KDIR.")
+endif()
+
+# Depend on all h and c files
+file(GLOB_RECURSE SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.c" "*.h")
+
+file(GLOB_RECURSE OBJ RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.c")
+list(TRANSFORM OBJ REPLACE "^(.*)[.]c" "\\1.o")
+list(TRANSFORM OBJ PREPEND ${CMAKE_CURRENT_SOURCE_DIR}/)
+
+# Build the kernel module
+add_custom_target(ethosu-remoteproc-module ALL
+    COMMAND ${CMAKE_MAKE_PROGRAM} -C ${KDIR}
+    EXTRA_CFLAGS=-I${KDIR}/../../../drivers/remoteproc M=${CMAKE_CURRENT_SOURCE_DIR}
+                  CONFIG_ETHOSU_RESET=m
+                  CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 modules
+                  BYPRODUCTS
+                  ${CMAKE_CURRENT_SOURCE_DIR}/ethosu_remoteproc.ko
+                  ${CMAKE_CURRENT_SOURCE_DIR}/ethosu_remoteproc.mod.o
+                  ${CMAKE_CURRENT_SOURCE_DIR}/modules.order
+                  ${CMAKE_CURRENT_SOURCE_DIR}/Module.symvers
+                  ${OBJ}
+                  DEPENDS ${SOURCES} Kbuild Kconfig
+                  COMMENT "Building ethosu_remoteproc.ko"
+                  VERBATIM)
+