[PATCH] ARM: S3C6410: Support 800MHz operation in cpufreq
From: Kukjin Kim <hidden>
Date: 2011-05-06 04:48:44
Mark Brown wrote:
At least some newer S3C6410 silicon supports operation up to 800MHz rather than just 667MHz. Unfortunately I don't have access to any of
documentation
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of this other than some running systems, add a new cpufreq table entry for this based on the behaviour of those systems. Signed-off-by: Mark Brown <redacted> --- arch/arm/mach-s3c64xx/cpufreq.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)diff --git a/arch/arm/mach-s3c64xx/cpufreq.c b/arch/arm/mach-s3c64xx/cpufreq.c index 4375b97..db722a5 100644--- a/arch/arm/mach-s3c64xx/cpufreq.c +++ b/arch/arm/mach-s3c64xx/cpufreq.c@@ -32,6 +32,7 @@ static struct s3c64xx_dvfs s3c64xx_dvfs_table[] = { [1] = { 1050000, 1150000 }, [2] = { 1100000, 1150000 }, [3] = { 1200000, 1350000 }, + [4] = { 1300000, 1350000 }, }; static struct cpufreq_frequency_table s3c64xx_freq_table[] = {@@ -44,6 +45,7 @@ static struct cpufreq_frequency_table
s3c64xx_freq_table[]
= {
{ 2, 532000 },
{ 2, 533000 },
{ 3, 667000 },
+ { 4, 800000 },
{ 0, CPUFREQ_TABLE_END },
};
#endif
--Hi Mark, Yes, some newer S3C6410 can support 800Mhz(ARM clock) and you can distinguish it from its marking on top of silicon. According to a design guide, its typical VDD ARM is 1.3V :) Will apply and thanks. Best regards, Kgene. -- Kukjin Kim [off-list ref], Senior Engineer, SW Solution Development Team, Samsung Electronics Co., Ltd.