diff options
| author | Amit Kamath <akamath@nvidia.com> | 2011-02-04 18:08:19 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:41:57 -0800 |
| commit | d575ebe72661625d86b25c8c7e49f809fa3ae064 (patch) | |
| tree | 6161ff6e0c9905b2b9daa1a9f50d979b8c09041b /arch/arm/mach-tegra | |
| parent | b85f76575eadcad4efb85400edbd583d6de5d8af (diff) | |
ARM: tegra: cpufreq: finer values for emc scaling
Added support for emc frequencies 75,100,25 Mhz scaling
Original-Change-Id: Id5f170a380c3acbc7a375ab5e5018628549b992f
Reviewed-on: http://git-master/r/18340
Reviewed-by: Amit Kamath <akamath@nvidia.com>
Tested-by: Amit Kamath <akamath@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Rebase-Id: R95a7430358c3c527315b32b14609a18ce2e6324c
Diffstat (limited to 'arch/arm/mach-tegra')
| -rw-r--r-- | arch/arm/mach-tegra/cpu-tegra.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c index 29845ae46d8a..5ffb8549af51 100644 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ b/arch/arm/mach-tegra/cpu-tegra.c @@ -218,10 +218,14 @@ static int tegra_update_cpu_speed(unsigned long rate) */ if (rate >= 816000) clk_set_rate(emc_clk, 600000000); /* cpu 816 MHz, emc max */ + else if (rate >= 608000) + clk_set_rate(emc_clk, 300000000); /* cpu 608 MHz, emc 150Mhz */ else if (rate >= 456000) - clk_set_rate(emc_clk, 300000000); /* cpu 456 MHz, emc 150Mhz */ + clk_set_rate(emc_clk, 150000000); /* cpu 456 MHz, emc 75Mhz */ + else if (rate >= 312000) + clk_set_rate(emc_clk, 100000000); /* cpu 312 MHz, emc 50Mhz */ else - clk_set_rate(emc_clk, 100000000); /* emc 50Mhz */ + clk_set_rate(emc_clk, 50000000); /* emc 25Mhz */ for_each_online_cpu(freqs.cpu) cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); |