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502613771e
Implement enable_fpu() and disable_fpu(). enable_fpu() disables interrupt and then enables FPU. disable_fpu() disables FPU and enables interrupt. Also added a CONFIG_FPU flag. BUG=chrome-os-partner:7920 TEST=none Change-Id: I2d71f396d9c7d7ac4a6a2d525f3d86f8aae87521 Signed-off-by: Vic Yang <victoryang@chromium.org>
17 lines
482 B
Makefile
17 lines
482 B
Makefile
# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Cortex-M4 core OS files build
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#
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# FPU compilation flags
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CFLAGS_FPU-$(CONFIG_FPU)=-mfpu=fpv4-sp-d16 -mfloat-abi=hard
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# CPU specific compilation flags
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CFLAGS_CPU=-mcpu=cortex-m4 -mthumb -Os -mno-sched-prolog
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CFLAGS_CPU+=$(CFLAGS_FPU-y)
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core-y=init.o panic.o switch.o task.o timer.o
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core-$(CONFIG_FPU)+=fpu.o
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