diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx51.h b/arch/arm/plat-mxc/include/mach/iomux-mx51.h
index 2bd09feb19ca4afc5ab3ac08b56890e224b631c0..197cd1ff7c60d9e58acc2cdf40902a5bdebf7cce 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx51.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx51.h
@@ -214,9 +214,13 @@ typedef enum iomux_config {
 #define MX51_PAD_I2C1_CLK__HSI2C_CLK		IOMUX_PAD(0x5E8, 0x1F8, 0, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_I2C1_DAT__GPIO_4_17            IOMUX_PAD(0x5EC, 0x1FC, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_I2C1_DAT__HSI2C_DAT		IOMUX_PAD(0x5EC, 0x1FC, 0, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_AUD3_BB_TXD__AUD3_BB_TXD       IOMUX_PAD(0x5F0, 0x200, IOMUX_CONFIG_SION, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_AUD3_BB_TXD__GPIO_4_18         IOMUX_PAD(0x5F0, 0x200, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_AUD3_BB_RXD__AUD3_BB_RXD       IOMUX_PAD(0x5F4, 0x204, IOMUX_CONFIG_SION, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_AUD3_BB_RXD__GPIO_4_19         IOMUX_PAD(0x5F4, 0x204, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_AUD3_BB_CK__AUD3_BB_CK         IOMUX_PAD(0x5F8, 0x208, IOMUX_CONFIG_SION, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_AUD3_BB_CK__GPIO_4_20          IOMUX_PAD(0x5F8, 0x208, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_AUD3_BB_FS__AUD3_BB_FS         IOMUX_PAD(0x5FC, 0x20C, IOMUX_CONFIG_SION, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_AUD3_BB_FS__GPIO_4_21          IOMUX_PAD(0x5FC, 0x20C, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI        IOMUX_PAD(0x600, 0x210, 0, 0x0,   0, MX51_ECSPI_PAD_CTRL)
 #define MX51_PAD_CSPI1_MOSI__GPIO_4_22          IOMUX_PAD(0x600, 0x210, 3, 0x0,   0, NO_PAD_CTRL)