mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-17 02:21:15 +00:00
edbfb3a43b
Add support to enable the architectural D-cache on ARMv7-M CPU supporting it. Update the MPU code in order to be able to declare an 'uncached' RAM region (e.g. to store the DMA buffer). Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=poppy BUG=b:78535052, b:75068419 TEST=with the following CL, on ZerbleBarn, boot and capture a finger image. Change-Id: I275445e7c0b558cedc3e7d6fc6840ff9b4b76285 Reviewed-on: https://chromium-review.googlesource.com/1032776 Commit-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
31 lines
863 B
Makefile
31 lines
863 B
Makefile
# -*- makefile -*-
|
|
# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
|
|
# Use of this source code is governed by a BSD-style license that can be
|
|
# found in the LICENSE file.
|
|
#
|
|
# Cortex-M4 core OS files build
|
|
#
|
|
|
|
# Select ARMv7-m bare-metal toolchain
|
|
$(call set-option,CROSS_COMPILE,$(CROSS_COMPILE_arm),arm-none-eabi-)
|
|
|
|
# FPU compilation flags
|
|
CFLAGS_FPU-$(CONFIG_FPU)=-mfpu=fpv4-sp-d16 -mfloat-abi=hard
|
|
|
|
# CPU specific compilation flags
|
|
CFLAGS_CPU+=-mthumb -Os -mno-sched-prolog
|
|
CFLAGS_CPU+=-mno-unaligned-access
|
|
CFLAGS_CPU+=$(CFLAGS_FPU-y)
|
|
|
|
ifneq ($(CONFIG_LTO),)
|
|
CFLAGS_CPU+=-flto
|
|
LDFLAGS_EXTRA+=-flto
|
|
endif
|
|
|
|
core-y=cpu.o init.o ldivmod.o llsr.o uldivmod.o
|
|
core-$(CONFIG_ARMV7M_CACHE)+=cache.o
|
|
core-$(CONFIG_COMMON_PANIC_OUTPUT)+=panic.o
|
|
core-$(CONFIG_COMMON_RUNTIME)+=switch.o task.o
|
|
core-$(CONFIG_WATCHDOG)+=watchdog.o
|
|
core-$(CONFIG_MPU)+=mpu.o
|