diff options
author | Mark Salter <msalter@redhat.com> | 2010-10-27 17:28:57 +0100 |
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committer | David Howells <dhowells@redhat.com> | 2010-10-27 17:28:57 +0100 |
commit | 730c1fad0ee22a170d2ee76a904709ee304931c0 (patch) | |
tree | 365289c84b02c5c54d43238f2bc9b14b143cafbc /arch/mn10300/kernel/csrc-mn10300.c | |
parent | 2502c64eeb125c5d57e3e7dc38320b500d69e088 (diff) | |
download | op-kernel-dev-730c1fad0ee22a170d2ee76a904709ee304931c0.zip op-kernel-dev-730c1fad0ee22a170d2ee76a904709ee304931c0.tar.gz |
MN10300: Generic time support
Implement generic time support for MN10300.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300/kernel/csrc-mn10300.c')
-rw-r--r-- | arch/mn10300/kernel/csrc-mn10300.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/mn10300/kernel/csrc-mn10300.c b/arch/mn10300/kernel/csrc-mn10300.c new file mode 100644 index 0000000..ba2f0c4 --- /dev/null +++ b/arch/mn10300/kernel/csrc-mn10300.c @@ -0,0 +1,35 @@ +/* MN10300 clocksource + * + * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. + * Written by Mark Salter (msalter@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#include <linux/clocksource.h> +#include <linux/init.h> +#include <asm/timex.h> +#include "internal.h" + +static cycle_t mn10300_read(struct clocksource *cs) +{ + return read_timestamp_counter(); +} + +static struct clocksource clocksource_mn10300 = { + .name = "TSC", + .rating = 200, + .read = mn10300_read, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +int __init init_clocksource(void) +{ + startup_timestamp_counter(); + clocksource_set_clock(&clocksource_mn10300, MN10300_TSCCLK); + clocksource_register(&clocksource_mn10300); + return 0; +} |