diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index a74d3c7..8908e32 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -29,6 +29,7 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/suspend.h>
+#include <memory/tegra_emc_performance.h>
 
 /* Frequency table index must be sequential starting at 0 */
 static struct cpufreq_frequency_table freq_table[] = {
@@ -117,16 +118,16 @@ static int tegra_update_cpu_speed(unsigned long rate)
 	if (freqs.old == freqs.new)
 		return ret;
 
-	/*
-	 * Vote on memory bus frequency based on cpu frequency
-	 * This sets the minimum frequency, display or avp may request higher
-	 */
+	/* Boost memory bus frequency based on CPU frequency */
 	if (rate >= 816000)
-		clk_set_rate(emc_clk, 600000000); /* cpu 816 MHz, emc max */
+		tegra_emc_request_perf_level(TEGRA_EMC_SC_MPCORE,
+					     TEGRA_EMC_PL_HIGH);
 	else if (rate >= 456000)
-		clk_set_rate(emc_clk, 300000000); /* cpu 456 MHz, emc 150Mhz */
+		tegra_emc_request_perf_level(TEGRA_EMC_SC_MPCORE,
+					     TEGRA_EMC_PL_MID);
 	else
-		clk_set_rate(emc_clk, 100000000);  /* emc 50Mhz */
+		tegra_emc_request_perf_level(TEGRA_EMC_SC_MPCORE,
+					     TEGRA_EMC_PL_LOW);
 
 	for_each_online_cpu(freqs.cpu)
 		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);