From a2f95d446db3252ce95aa573e6465cd3163e18b3 Mon Sep 17 00:00:00 2001
From: Kristofer Jonsson <kristofer.jonsson@arm.com>
Date: Wed, 30 Jun 2021 13:07:35 +0200
Subject: Support 'none' accelerator

Change-Id: Iada7cfaa42dc6f5706504ee78e975730048e0f3c
---
 cmake/helpers.cmake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmake/helpers.cmake b/cmake/helpers.cmake
index 3444e64..f9c3be0 100644
--- a/cmake/helpers.cmake
+++ b/cmake/helpers.cmake
@@ -160,7 +160,11 @@ endfunction()
 
 function(ethosu_get_architecture config)
     string(TOLOWER ${config} config)
-    if(${config} MATCHES "^ethos-(u[0-9]+|uz)-([0-9]+$)")
+
+    if(${config} STREQUAL "none")
+        set(ETHOSU_ARCH "none" PARENT_SCOPE)
+        set(ETHOSU_NUM_MACS 0 PARENT_SCOPE)
+    elseif(${config} MATCHES "^ethos-(u[0-9]+|uz)-([0-9]+$)")
         set(ETHOSU_ARCH ${CMAKE_MATCH_1} PARENT_SCOPE)
         set(ETHOSU_NUM_MACS ${CMAKE_MATCH_2} PARENT_SCOPE)
     else()
-- 
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