diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index 292eee3..857860b 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -153,6 +153,9 @@
 		else
 			/* The FIFO has 128 locations */
 			pdata->buffer_size = 0x80;
+	} else if (oh->class->rev == MCBSP_CONFIG_TYPE4) {
+		/* The FIFO has 128 locations for all instances */
+		pdata->buffer_size = 0x80;
 	}
 
 	if (oh->class->rev >= MCBSP_CONFIG_TYPE3)