Module Name: src
Committed By: jmcneill
Date: Fri Jan 2 21:58:03 UTC 2015
Modified Files:
src/sys/arch/arm/cortex: a9tmr.c a9tmr_var.h
Log Message:
add a helper to update a9tmr frequency
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/arm/cortex/a9tmr.c
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/arm/cortex/a9tmr_var.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/cortex/a9tmr.c
diff -u src/sys/arch/arm/cortex/a9tmr.c:1.7 src/sys/arch/arm/cortex/a9tmr.c:1.8
--- src/sys/arch/arm/cortex/a9tmr.c:1.7 Fri Mar 28 21:57:22 2014
+++ src/sys/arch/arm/cortex/a9tmr.c Fri Jan 2 21:58:03 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: a9tmr.c,v 1.7 2014/03/28 21:57:22 matt Exp $ */
+/* $NetBSD: a9tmr.c,v 1.8 2015/01/02 21:58:03 jmcneill Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: a9tmr.c,v 1.7 2014/03/28 21:57:22 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: a9tmr.c,v 1.8 2015/01/02 21:58:03 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -249,6 +249,19 @@ cpu_initclocks(void)
}
void
+a9tmr_update_freq(uint32_t freq)
+{
+ struct a9tmr_softc * const sc = &a9tmr_sc;
+
+ KASSERT(sc->sc_dev != NULL);
+ KASSERT(freq != 0);
+
+ sc->sc_freq = freq;
+ sc->sc_autoinc = sc->sc_freq / hz;
+ a9tmr_timecounter.tc_frequency = sc->sc_freq;
+}
+
+void
a9tmr_delay(unsigned int n)
{
struct a9tmr_softc * const sc = &a9tmr_sc;
Index: src/sys/arch/arm/cortex/a9tmr_var.h
diff -u src/sys/arch/arm/cortex/a9tmr_var.h:1.3 src/sys/arch/arm/cortex/a9tmr_var.h:1.4
--- src/sys/arch/arm/cortex/a9tmr_var.h:1.3 Thu Jun 20 05:30:21 2013
+++ src/sys/arch/arm/cortex/a9tmr_var.h Fri Jan 2 21:58:03 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: a9tmr_var.h,v 1.3 2013/06/20 05:30:21 matt Exp $ */
+/* $NetBSD: a9tmr_var.h,v 1.4 2015/01/02 21:58:03 jmcneill Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
@@ -47,6 +47,7 @@ struct a9tmr_softc {
#ifdef _KERNEL
struct cpu_info;
void a9tmr_init_cpu_clock(struct cpu_info *);
+void a9tmr_update_freq(uint32_t);
void a9tmr_delay(unsigned int n);
#endif
