nios2: move soc to top-level dir soc/

Move the SoC outside of the architecture tree and put them at the same
level as boards and architectures allowing both SoCs and boards to be
maintained outside the tree.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

arch/nios2/CMakeLists.txt

@@ -32,5 +32,4 @@ else()
 zephyr_cc_option(-mno-hw-div)
 endif()
 
-add_subdirectory(soc/${SOC_PATH})
 add_subdirectory(core)

arch/nios2/Kconfig

@@ -7,7 +7,7 @@
 choice
 	prompt "Nios II configuration selection"
 	depends on NIOS2
-	source "arch/nios2/soc/*/Kconfig.soc"
+	source "soc/nios2/*/Kconfig.soc"
 endchoice
 
 menu "Nios II Options"
@@ -17,7 +17,7 @@ menu "Nios II Options"
 # overriden (by defining symbols in multiple locations)
 #
 # (No SoC-specific Kconfig files as of writing, hence the optional source.)
-osource "arch/nios2/soc/*/Kconfig"
+osource "soc/nios2/*/Kconfig"
 
 config ARCH
 	string

boards/nios2/altera_max10/board.cmake

@@ -1,2 +1,2 @@
-board_runner_args(nios2 "--cpu-sof=${ZEPHYR_BASE}/arch/nios2/soc/nios2f-zephyr/cpu/ghrd_10m50da.sof")
+board_runner_args(nios2 "--cpu-sof=${ZEPHYR_BASE}/soc/nios2/nios2f-zephyr/cpu/ghrd_10m50da.sof")
 include(${ZEPHYR_BASE}/boards/common/nios2.board.cmake)

boards/nios2/altera_max10/doc/board.rst

@@ -94,11 +94,11 @@ Reference CPU
 =============
 
 A reference CPU design of a Nios II/f core is included in the Zephyr tree
-in the :file:`arch/nios2/soc/nios2f-zephyr/cpu` directory.
+in the :file:`soc/nios2/nios2f-zephyr/cpu` directory.
 
 Flash this CPU using the ``nios2-configure-sof`` SDK tool with the FPGA
 configuration file
-:file:`arch/nios2/soc/nios2f-zephyr/cpu/ghrd_10m50da.sof`:
+:file:`soc/nios2/nios2f-zephyr/cpu/ghrd_10m50da.sof`:
 
 .. code-block:: console