diff --git a/src/southbridge/intel/i82801gx/early_smbus.c b/src/southbridge/intel/i82801gx/early_smbus.c
index 5d204e9527..bb5caf5ca0 100644
--- a/src/southbridge/intel/i82801gx/early_smbus.c
+++ b/src/southbridge/intel/i82801gx/early_smbus.c
@@ -59,3 +59,14 @@ int i2c_block_read(unsigned int device, unsigned int offset, u32 bytes, u8 *buf)
 {
 	return do_i2c_block_read(SMBUS_IO_BASE, device, offset, bytes, buf);
 }
+
+int smbus_block_read(unsigned int device, unsigned int cmd, u8 bytes, u8 *buf)
+{
+	return do_smbus_block_read(SMBUS_IO_BASE, device, cmd, bytes, buf);
+}
+
+int smbus_block_write(unsigned int device, unsigned int cmd, u8 bytes,
+		const u8 *buf)
+{
+	return do_smbus_block_write(SMBUS_IO_BASE, device, cmd, bytes, buf);
+}
diff --git a/src/southbridge/intel/i82801gx/i82801gx.h b/src/southbridge/intel/i82801gx/i82801gx.h
index d1c861ddeb..b3c1b48ec2 100644
--- a/src/southbridge/intel/i82801gx/i82801gx.h
+++ b/src/southbridge/intel/i82801gx/i82801gx.h
@@ -52,6 +52,9 @@ void enable_smbus(void);
 int smbus_read_byte(unsigned int device, unsigned int address);
 int i2c_block_read(unsigned int device, unsigned int cmd, unsigned int bytes,
 		u8 *buf);
+int smbus_block_read(unsigned int device, unsigned int cmd, u8 bytes, u8 *buf);
+int smbus_block_write(unsigned int device, unsigned int cmd, u8 bytes,
+		const u8 *buf);
 int southbridge_detect_s3_resume(void);
 #endif
 #endif