diff --git a/drivers/pinctrl/sirf/pinctrl-atlas6.c b/drivers/pinctrl/sirf/pinctrl-atlas6.c
index 9cc8faf56a6e..45f8391ddb34 100644
--- a/drivers/pinctrl/sirf/pinctrl-atlas6.c
+++ b/drivers/pinctrl/sirf/pinctrl-atlas6.c
@@ -394,6 +394,23 @@ static const struct sirfsoc_padmux i2s_mclk_padmux = {
 
 static const unsigned i2s_mclk_pins[] = { 42 };
 
+static const struct sirfsoc_muxmask i2s_ext_clk_input_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(19),
+	},
+};
+
+static const struct sirfsoc_padmux i2s_ext_clk_input_padmux = {
+	.muxmask_counts = ARRAY_SIZE(i2s_ext_clk_input_muxmask),
+	.muxmask = i2s_ext_clk_input_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
+	.funcmask = BIT(2),
+	.funcval = BIT(2),
+};
+
+static const unsigned i2s_ext_clk_input_pins[] = { 51 };
+
 static const struct sirfsoc_muxmask i2s_muxmask[] = {
 	{
 		.group = 3,
@@ -982,6 +999,7 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
 	SIRFSOC_PIN_GROUP("uart1_route_io_usb1grp", uart1_route_io_usb1_pins),
 	SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins),
 	SIRFSOC_PIN_GROUP("i2smclkgrp", i2s_mclk_pins),
+	SIRFSOC_PIN_GROUP("i2s_ext_clk_inputgrp", i2s_ext_clk_input_pins),
 	SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins),
 	SIRFSOC_PIN_GROUP("i2s_no_dingrp", i2s_no_din_pins),
 	SIRFSOC_PIN_GROUP("i2s_6chngrp", i2s_6chn_pins),
@@ -1035,6 +1053,7 @@ static const char * const
 	uart1_route_io_usb1grp[] = { "uart1_route_io_usb1grp" };
 static const char * const pulse_countgrp[] = { "pulse_countgrp" };
 static const char * const i2smclkgrp[] = { "i2smclkgrp" };
+static const char * const i2s_ext_clk_inputgrp[] = { "i2s_ext_clk_inputgrp" };
 static const char * const i2sgrp[] = { "i2sgrp" };
 static const char * const i2s_no_dingrp[] = { "i2s_no_dingrp" };
 static const char * const i2s_6chngrp[] = { "i2s_6chngrp" };
@@ -1096,6 +1115,8 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
 		uart1_route_io_usb1grp, uart1_route_io_usb1_padmux),
 	SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s_mclk", i2smclkgrp, i2s_mclk_padmux),
+	SIRFSOC_PMX_FUNCTION("i2s_ext_clk_input", i2s_ext_clk_inputgrp,
+						i2s_ext_clk_input_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s_no_din", i2s_no_dingrp, i2s_no_din_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s_6chn", i2s_6chngrp, i2s_6chn_padmux),