diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index 2c570cd..69858c7 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -224,6 +224,9 @@ static int __init __mx25_clocks_init(unsigned long osc_rate)
 
 	clk_prepare_enable(clk[emi_ahb]);
 
+	/* Clock source for gpt must be derived from AHB */
+	clk_set_parent(clk[per5_sel], clk[ahb]);
+
 	clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
 	clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
 
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 1ffe3b5..e30369a 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -228,9 +228,12 @@ int __init mx27_clocks_init(unsigned long fref)
 	clk_register_clkdev(clk[sdhc2_ipg_gate], "ipg", "imx21-mmc.1");
 	clk_register_clkdev(clk[per2_gate], "per", "imx21-mmc.2");
 	clk_register_clkdev(clk[sdhc2_ipg_gate], "ipg", "imx21-mmc.2");
-	clk_register_clkdev(clk[cspi1_ipg_gate], NULL, "imx27-cspi.0");
-	clk_register_clkdev(clk[cspi2_ipg_gate], NULL, "imx27-cspi.1");
-	clk_register_clkdev(clk[cspi3_ipg_gate], NULL, "imx27-cspi.2");
+	clk_register_clkdev(clk[per2_gate], "per", "imx27-cspi.0");
+	clk_register_clkdev(clk[cspi1_ipg_gate], "ipg", "imx27-cspi.0");
+	clk_register_clkdev(clk[per2_gate], "per", "imx27-cspi.1");
+	clk_register_clkdev(clk[cspi2_ipg_gate], "ipg", "imx27-cspi.1");
+	clk_register_clkdev(clk[per2_gate], "per", "imx27-cspi.2");
+	clk_register_clkdev(clk[cspi3_ipg_gate], "ipg", "imx27-cspi.2");
 	clk_register_clkdev(clk[per3_gate], "per", "imx21-fb.0");
 	clk_register_clkdev(clk[lcdc_ipg_gate], "ipg", "imx21-fb.0");
 	clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx21-fb.0");