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| author | Mike Frysinger <vapier.adi@gmail.com> | 2009-01-07 23:14:38 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 23:14:38 +0800 |
| commit | 508808cda6c39819f51b58e95ba5c6222acea222 (patch) | |
| tree | 469ad97313037db5e7ee9d09714eb05a740050d8 /arch | |
| parent | 7f1e2f98bd29f51edd64e0c15b10d9a18a7af4e1 (diff) | |
| download | lwn-508808cda6c39819f51b58e95ba5c6222acea222.tar.gz lwn-508808cda6c39819f51b58e95ba5c6222acea222.zip | |
Blackfin arch: do not allow people to pass in a diff clkin_hz value
do not allow people to pass in a diff clkin_hz value when
reprogramming clocks -- it is too late currently
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index c05e5e3bad68..4dffb913147e 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -951,6 +951,10 @@ static u_long get_clkin_hz(void) static int __init early_init_clkin_hz(char *buf) { cached_clkin_hz = simple_strtoul(buf, NULL, 0); +#ifdef BFIN_KERNEL_CLOCK + if (cached_clkin_hz != CONFIG_CLKIN_HZ) + panic("cannot change clkin_hz when reprogramming clocks"); +#endif return 1; } early_param("clkin_hz=", early_init_clkin_hz); |