diff --git a/include/configs/dlvision-10g.h b/include/configs/dlvision-10g.h
index 7877897..05a97bf 100644
--- a/include/configs/dlvision-10g.h
+++ b/include/configs/dlvision-10g.h
@@ -99,7 +99,18 @@
  */
 #define CONFIG_SYS_I2C_PPC4XX_SPEED_0		100000
 
+#define CONFIG_SYS_I2C_IHS
+#define CONFIG_SYS_I2C_IHS_CH0
+#define CONFIG_SYS_I2C_IHS_SPEED_0		50000
+#define CONFIG_SYS_I2C_IHS_SLAVE_0		0x7F
+#define CONFIG_SYS_I2C_IHS_CH1
+#define CONFIG_SYS_I2C_IHS_SPEED_1		50000
+#define CONFIG_SYS_I2C_IHS_SLAVE_1		0x7F
+
+#define CONFIG_SYS_SPD_BUS_NUM		2
+
 /* Temp sensor/hwmon/dtt */
+#define CONFIG_SYS_DTT_BUS_NUM	2
 #define CONFIG_DTT_LM63		1	/* National LM63	*/
 #define CONFIG_DTT_SENSORS	{ 0x4c, 0x4e, 0x18 } /* Sensor addresses */
 #define CONFIG_DTT_PWM_LOOKUPTABLE	\
diff --git a/include/configs/iocon.h b/include/configs/iocon.h
index 5636f38..36b4b55 100644
--- a/include/configs/iocon.h
+++ b/include/configs/iocon.h
@@ -99,12 +99,27 @@
 #define CONFIG_SYS_I2C_PPC4XX_CH0
 #define CONFIG_SYS_I2C_PPC4XX_SPEED_0		400000
 #define CONFIG_SYS_I2C_PPC4XX_SLAVE_0		0x7F
+#define CONFIG_SYS_I2C_IHS
 
 #define CONFIG_SYS_I2C_SPEED		400000
+#define CONFIG_SYS_SPD_BUS_NUM		4
 
 #define CONFIG_PCA953X			/* NXP PCA9554 */
 #define CONFIG_PCA9698			/* NXP PCA9698 */
 
+#define CONFIG_SYS_I2C_IHS_CH0
+#define CONFIG_SYS_I2C_IHS_SPEED_0		50000
+#define CONFIG_SYS_I2C_IHS_SLAVE_0		0x7F
+#define CONFIG_SYS_I2C_IHS_CH1
+#define CONFIG_SYS_I2C_IHS_SPEED_1		50000
+#define CONFIG_SYS_I2C_IHS_SLAVE_1		0x7F
+#define CONFIG_SYS_I2C_IHS_CH2
+#define CONFIG_SYS_I2C_IHS_SPEED_2		50000
+#define CONFIG_SYS_I2C_IHS_SLAVE_2		0x7F
+#define CONFIG_SYS_I2C_IHS_CH3
+#define CONFIG_SYS_I2C_IHS_SPEED_3		50000
+#define CONFIG_SYS_I2C_IHS_SLAVE_3		0x7F
+
 /*
  * Software (bit-bang) I2C driver configuration
  */
@@ -121,9 +136,9 @@
 #define CONFIG_SYS_I2C_SOFT_SPEED_4		50000
 #define CONFIG_SYS_I2C_SOFT_SLAVE_4		0x7F
 
-#define CONFIG_SYS_ICS8N3QV01_I2C		{1, 2, 3, 4}
-#define CONFIG_SYS_CH7301_I2C			{1, 2, 3, 4}
-#define CONFIG_SYS_DP501_I2C			{1, 2, 3, 4}
+#define CONFIG_SYS_ICS8N3QV01_I2C		{5, 6, 7, 8}
+#define CONFIG_SYS_CH7301_I2C			{5, 6, 7, 8}
+#define CONFIG_SYS_DP501_I2C			{0, 1, 2, 3}
 
 #ifndef __ASSEMBLY__
 void fpga_gpio_set(unsigned int bus, int pin);
@@ -148,8 +163,6 @@
 			fpga_gpio_set(I2C_ADAP_HWNR, 0x0020); \
 		else \
 			fpga_gpio_clear(I2C_ADAP_HWNR, 0x0020); \
-		while (!!fpga_gpio_get(I2C_ADAP_HWNR, 0x0020) != !!bit) \
-			; \
 	} while (0)
 #define I2C_DELAY	udelay(25)	/* 1/4 I2C clock duration */
 
diff --git a/include/gdsys_fpga.h b/include/gdsys_fpga.h
index 85ddbcb..276a01e 100644
--- a/include/gdsys_fpga.h
+++ b/include/gdsys_fpga.h
@@ -43,10 +43,12 @@
 };
 
 struct ihs_i2c {
-	u16 write_mailbox;
+	u16 interrupt_status;
+	u16 interrupt_enable;
 	u16 write_mailbox_ext;
-	u16 read_mailbox;
+	u16 write_mailbox;
 	u16 read_mailbox_ext;
+	u16 read_mailbox;
 };
 
 struct ihs_osd {
@@ -84,7 +86,6 @@
 #endif
 
 #ifdef CONFIG_IO64
-
 struct ihs_fpga_channel {
 	u16 status_int;
 	u16 config_int;
@@ -121,9 +122,9 @@
 	u16 reserved_0[6];	/* 0x0008 */
 	struct ihs_gpio gpio;	/* 0x0014 */
 	u16 mpc3w_control;	/* 0x001a */
-	u16 reserved_1[19];	/* 0x001c */
-	u16 videocontrol;	/* 0x0042 */
-	u16 reserved_2[14];	/* 0x0044 */
+	u16 reserved_1[18];	/* 0x001c */
+	struct ihs_i2c i2c;	/* 0x0040 */
+	u16 reserved_2[10];	/* 0x004c */
 	u16 mc_int;		/* 0x0060 */
 	u16 mc_int_en;		/* 0x0062 */
 	u16 mc_status;		/* 0x0064 */
@@ -150,15 +151,13 @@
 	u16 fpga_features;	/* 0x0006 */
 	u16 reserved_0[10];	/* 0x0008 */
 	u16 extended_interrupt; /* 0x001c */
-	u16 reserved_1[9];	/* 0x001e */
-	struct ihs_i2c i2c;	/* 0x0030 */
-	u16 reserved_2[16];	/* 0x0038 */
+	u16 reserved_1[29];	/* 0x001e */
 	u16 mpc3w_control;	/* 0x0058 */
-	u16 reserved_3[34];	/* 0x005a */
-	u16 videocontrol;	/* 0x009e */
-	u16 reserved_4[176];	/* 0x00a0 */
+	u16 reserved_2[3];	/* 0x005a */
+	struct ihs_i2c i2c;	/* 0x0060 */
+	u16 reserved_3[205];	/* 0x0066 */
 	struct ihs_osd osd;	/* 0x0200 */
-	u16 reserved_5[761];	/* 0x020e */
+	u16 reserved_4[761];	/* 0x020e */
 	u16 videomem[31736];	/* 0x0800 */
 };
 #endif