diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 14bb27246b9421b62f7193895e1e5f67a2c0186f..fe06038246507c67a960cba00f9041beb7a4eff2 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -55,6 +55,7 @@ CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=32
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_CONSTANTS=y