diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 3f9d3cd065841d1e7845ef26b1ba8c1009f4a87a..5ae9fc512180c979deac5bbad5687b266778032a 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -17,7 +17,7 @@
 #include <linux/interrupt.h>
 #include <linux/list.h>
 
-#define SH_DMAC_MAX_CHANNELS 6
+#define SH_DMAC_MAX_CHANNELS 20
 #define SH_DMA_SLAVE_NUMBER 256
 #define SH_DMA_TCR_MAX 0x00FFFFFF	/* 16MB */