diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index b09a2ec19267..c8d68e918b2f 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -71,15 +71,6 @@ enum mxc_cpu_pwr_mode {
 	STOP_POWER_OFF,		/* STOP + SRPG */
 };
 
-enum mx3_cpu_pwr_mode {
-	MX3_RUN,
-	MX3_WAIT,
-	MX3_DOZE,
-	MX3_SLEEP,
-};
-
-void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode);
-
 void imx_enable_cpu(int cpu, bool enable);
 void imx_set_cpu_jump(int cpu, void *jump_addr);
 u32 imx_get_cpu_arg(int cpu);
diff --git a/arch/arm/mach-imx/mmdc.c b/arch/arm/mach-imx/mmdc.c
index 78262899a590..5fb1d2254b5e 100644
--- a/arch/arm/mach-imx/mmdc.c
+++ b/arch/arm/mach-imx/mmdc.c
@@ -547,7 +547,6 @@ static int imx_mmdc_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	void __iomem *mmdc_base, *reg;
 	u32 val;
-	int timeout = 0x400;
 
 	mmdc_base = of_iomap(np, 0);
 	WARN_ON(!mmdc_base);
@@ -565,16 +564,6 @@ static int imx_mmdc_probe(struct platform_device *pdev)
 	val &= ~(1 << BP_MMDC_MAPSR_PSD);
 	writel_relaxed(val, reg);
 
-	/* Ensure it's successfully enabled */
-	while (!(readl_relaxed(reg) & 1 << BP_MMDC_MAPSR_PSS) && --timeout)
-		cpu_relax();
-
-	if (unlikely(!timeout)) {
-		pr_warn("%s: failed to enable automatic power saving\n",
-			__func__);
-		return -EBUSY;
-	}
-
 	return imx_mmdc_perf_init(pdev, mmdc_base);
 }