diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c
index 13c8cae6046253c0a24fcafaedef1b2797cbc122..1b144b4d3ce19da1ef7a580d2bbde299100eaa5f 100644
--- a/arch/arm/mach-at91/at91sam9x5.c
+++ b/arch/arm/mach-at91/at91sam9x5.c
@@ -120,6 +120,11 @@ static struct clk adc_clk = {
 	.pmc_mask	= 1 << AT91SAM9X5_ID_ADC,
 	.type	= CLK_TYPE_PERIPHERAL,
 };
+static struct clk adc_op_clk = {
+	.name		= "adc_op_clk",
+	.type		= CLK_TYPE_PERIPHERAL,
+	.rate_hz	= 5000000,
+};
 static struct clk dma0_clk = {
 	.name		= "dma0_clk",
 	.pmc_mask	= 1 << AT91SAM9X5_ID_DMA0,
@@ -205,6 +210,7 @@ static struct clk *periph_clocks[] __initdata = {
 	&tcb0_clk,
 	&pwm_clk,
 	&adc_clk,
+	&adc_op_clk,
 	&dma0_clk,
 	&dma1_clk,
 	&uhphs_clk,