Correct SPI mode for CC3000 is CPOL=0 CHPA=1. From Jussi Kivilinna

drivers/wireless/cc3000/Kconfig

@@ -42,10 +42,10 @@ config CC3000_DEVMINOR
 
 config CC3000_SPI_MODE
 	int "SPI mode"
-	default 0
+	default 1
 	range 0 3
 	---help---
-		Controls the SPI mode. The device should work in mode 0, but
+		Controls the SPI mode. The device should work in mode 1, but
 		sometimes you need to experiment.
 
 config CC3000_SPI_FREQUENCY