x86: Add a dummy implementation for timer_get_us

The microsecond timer is not currently implemented, but add a dummy
implementation for now.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Gabe Black 2012-10-20 12:33:11 +00:00 committed by Simon Glass
parent f30fc4de41
commit 452b80ef8c
2 changed files with 18 additions and 1 deletions

View file

@ -30,7 +30,7 @@ LIB = $(obj)lib$(CPU).o
START-y = start.o
RESET_OBJS-$(CONFIG_X86_NO_RESET_VECTOR) += resetvec.o start16.o
COBJS = interrupts.o cpu.o
COBJS = interrupts.o cpu.o timer.o
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))

17
arch/x86/cpu/timer.c Normal file
View file

@ -0,0 +1,17 @@
/*
* Copyright (c) 2011 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.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*/
#include <common.h>
unsigned long timer_get_us(void)
{
printf("timer_get_us used but not implemented.\n");
return 0;
}