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authorMichael Hennerich <michael.hennerich@analog.com>2008-10-28 14:18:29 +0800
committerBryan Wu <cooloney@kernel.org>2008-10-28 14:18:29 +0800
commita10101d5ff9e34c0a1a526725474eef84409529a (patch)
treebc9c8731210f67f8c23294082a3736775908f23a /arch/blackfin
parentda986b9ffff79224417b69cf43506192bd9c29dc (diff)
downloadop-kernel-dev-a10101d5ff9e34c0a1a526725474eef84409529a.zip
op-kernel-dev-a10101d5ff9e34c0a1a526725474eef84409529a.tar.gz
Blackfin arch: fix bug - Cpufreq assumes clocks in kHz and not Hz.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/mach-common/cpufreq.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index c22c47b..dda5443 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -72,13 +72,13 @@ unsigned int __bfin_cycles_mod;
/**************************************************************************/
-static unsigned int bfin_getfreq(unsigned int cpu)
+static unsigned int bfin_getfreq_khz(unsigned int cpu)
{
/* The driver only support single cpu */
if (cpu != 0)
return -1;
- return get_cclk();
+ return get_cclk() / 1000;
}
@@ -96,7 +96,7 @@ static int bfin_target(struct cpufreq_policy *policy,
cclk_hz = bfin_freq_table[index].frequency;
- freqs.old = bfin_getfreq(0);
+ freqs.old = bfin_getfreq_khz(0);
freqs.new = cclk_hz;
freqs.cpu = 0;
@@ -137,8 +137,8 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
if (policy->cpu != 0)
return -EINVAL;
- cclk = get_cclk();
- sclk = get_sclk();
+ cclk = get_cclk() / 1000;
+ sclk = get_sclk() / 1000;
#if ANOMALY_05000273 || (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_DCACHE))
min_cclk = sclk * 2;
@@ -152,7 +152,7 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
dpm_state_table[index].csel = csel << 4; /* Shift now into PLL_DIV bitpos */
dpm_state_table[index].tscale = (TIME_SCALE / (1 << csel)) - 1;
- pr_debug("cpufreq: freq:%d csel:%d tscale:%d\n",
+ pr_debug("cpufreq: freq:%d csel:0x%x tscale:%d\n",
bfin_freq_table[index].frequency,
dpm_state_table[index].csel,
dpm_state_table[index].tscale);
@@ -173,7 +173,7 @@ static struct freq_attr *bfin_freq_attr[] = {
static struct cpufreq_driver bfin_driver = {
.verify = bfin_verify_speed,
.target = bfin_target,
- .get = bfin_getfreq,
+ .get = bfin_getfreq_khz,
.init = __bfin_cpu_init,
.name = "bfin cpufreq",
.owner = THIS_MODULE,
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