From 5895b0f2a06ac1a1578c3b0812b20832c3d69c29 Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Mon, 27 Jun 2016 08:28:06 +0000
Subject: FPU settings for Cortex-M7, requires GCC 4.9 minimum.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9669 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/common/startup/ARMCMx/compilers/GCC/rules.mk | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'os/common/startup/ARMCMx/compilers/GCC')

diff --git a/os/common/startup/ARMCMx/compilers/GCC/rules.mk b/os/common/startup/ARMCMx/compilers/GCC/rules.mk
index 9c4aeaaac..5026b7c9f 100644
--- a/os/common/startup/ARMCMx/compilers/GCC/rules.mk
+++ b/os/common/startup/ARMCMx/compilers/GCC/rules.mk
@@ -27,12 +27,17 @@ ifeq ($(USE_LTO),yes)
   OPT += -flto
 endif
 
+# FPU options default (Cortex-M4 and Cortex-M7 single precision).
+ifeq ($(USE_FPU_OPT),)
+  USE_FPU_OPT = -mfloat-abi=$(USE_FPU) -mfpu=fpv4-sp-d16 -fsingle-precision-constant
+endif
+
 # FPU-related options
 ifeq ($(USE_FPU),)
   USE_FPU = no
 endif
 ifneq ($(USE_FPU),no)
-  OPT    += -mfloat-abi=$(USE_FPU) -mfpu=fpv4-sp-d16 -fsingle-precision-constant
+  OPT    += $(USE_FPU_OPT)
   DDEFS  += -DCORTEX_USE_FPU=TRUE
   DADEFS += -DCORTEX_USE_FPU=TRUE
 else
-- 
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