diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 8834c59..f9b0832 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -200,6 +200,54 @@ struct src {
 	u32     gpr10;
 };
 
+/* GPR3 bitfields */
+#define IOMUXC_GPR3_GPU_DBG_OFFSET		29
+#define IOMUXC_GPR3_GPU_DBG_MASK		(3<<IOMUXC_GPR3_GPU_DBG_OFFSET)
+#define IOMUXC_GPR3_BCH_WR_CACHE_CTL_OFFSET	28
+#define IOMUXC_GPR3_BCH_WR_CACHE_CTL_MASK	(1<<IOMUXC_GPR3_BCH_WR_CACHE_CTL_OFFSET)
+#define IOMUXC_GPR3_BCH_RD_CACHE_CTL_OFFSET	27
+#define IOMUXC_GPR3_BCH_RD_CACHE_CTL_MASK	(1<<IOMUXC_GPR3_BCH_RD_CACHE_CTL_OFFSET)
+#define IOMUXC_GPR3_uSDHCx_WR_CACHE_CTL_OFFSET	26
+#define IOMUXC_GPR3_uSDHCx_WR_CACHE_CTL_MASK	(1<<IOMUXC_GPR3_uSDHCx_WR_CACHE_CTL_OFFSET)
+#define IOMUXC_GPR3_uSDHCx_RD_CACHE_CTL_OFFSET	25
+#define IOMUXC_GPR3_uSDHCx_RD_CACHE_CTL_MASK	(1<<IOMUXC_GPR3_uSDHCx_RD_CACHE_CTL_OFFSET)
+#define IOMUXC_GPR3_OCRAM_CTL_OFFSET		21
+#define IOMUXC_GPR3_OCRAM_CTL_MASK		(0xf<<IOMUXC_GPR3_OCRAM_CTL_OFFSET)
+#define IOMUXC_GPR3_OCRAM_STATUS_OFFSET		17
+#define IOMUXC_GPR3_OCRAM_STATUS_MASK		(0xf<<IOMUXC_GPR3_OCRAM_STATUS_OFFSET)
+#define IOMUXC_GPR3_CORE3_DBG_ACK_EN_OFFSET	16
+#define IOMUXC_GPR3_CORE3_DBG_ACK_EN_MASK	(1<<IOMUXC_GPR3_CORE3_DBG_ACK_EN_OFFSET)
+#define IOMUXC_GPR3_CORE2_DBG_ACK_EN_OFFSET	15
+#define IOMUXC_GPR3_CORE2_DBG_ACK_EN_MASK	(1<<IOMUXC_GPR3_CORE2_DBG_ACK_EN_OFFSET)
+#define IOMUXC_GPR3_CORE1_DBG_ACK_EN_OFFSET	14
+#define IOMUXC_GPR3_CORE1_DBG_ACK_EN_MASK	(1<<IOMUXC_GPR3_CORE1_DBG_ACK_EN_OFFSET)
+#define IOMUXC_GPR3_CORE0_DBG_ACK_EN_OFFSET	13
+#define IOMUXC_GPR3_CORE0_DBG_ACK_EN_MASK	(1<<IOMUXC_GPR3_CORE0_DBG_ACK_EN_OFFSET)
+#define IOMUXC_GPR3_TZASC2_BOOT_LOCK_OFFSET	12
+#define IOMUXC_GPR3_TZASC2_BOOT_LOCK_MASK	(1<<IOMUXC_GPR3_TZASC2_BOOT_LOCK_OFFSET)
+#define IOMUXC_GPR3_TZASC1_BOOT_LOCK_OFFSET	11
+#define IOMUXC_GPR3_TZASC1_BOOT_LOCK_MASK	(1<<IOMUXC_GPR3_TZASC1_BOOT_LOCK_OFFSET)
+#define IOMUXC_GPR3_IPU_DIAG_OFFSET		10
+#define IOMUXC_GPR3_IPU_DIAG_MASK		(1<<IOMUXC_GPR3_IPU_DIAG_OFFSET)
+
+#define IOMUXC_GPR3_MUX_SRC_IPU1_DI0	0
+#define IOMUXC_GPR3_MUX_SRC_IPU1_DI1	1
+#define IOMUXC_GPR3_MUX_SRC_IPU2_DI0	2
+#define IOMUXC_GPR3_MUX_SRC_IPU2_DI1	3
+
+#define IOMUXC_GPR3_LVDS1_MUX_CTL_OFFSET	8
+#define IOMUXC_GPR3_LVDS1_MUX_CTL_MASK		(3<<IOMUXC_GPR3_LVDS1_MUX_CTL_OFFSET)
+
+#define IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET	6
+#define IOMUXC_GPR3_LVDS0_MUX_CTL_MASK		(3<<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET)
+
+#define IOMUXC_GPR3_MIPI_MUX_CTL_OFFSET		4
+#define IOMUXC_GPR3_MIPI_MUX_CTL_MASK		(3<<IOMUXC_GPR3_MIPI_MUX_CTL_OFFSET)
+
+#define IOMUXC_GPR3_HDMI_MUX_CTL_OFFSET		2
+#define IOMUXC_GPR3_HDMI_MUX_CTL_MASK		(3<<IOMUXC_GPR3_HDMI_MUX_CTL_OFFSET)
+
+
 /* ECSPI registers */
 struct cspi_regs {
 	u32 rxdata;