sparc32 has working dma-mapping only with CONFIG_PCI

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 8567cc9..73df711 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -217,6 +217,9 @@
 
 endif
 
+config NO_DMA
+	def_bool !PCI
+
 config SUN_OPENPROMFS
 	tristate "Openprom tree appears in /proc/openprom"
 	help