1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 8bc4bc4c330e..f51b2d9b085b 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -62,6 +62,14 @@ config B43_PCMCIA
 
           If unsure, say N.
 
+# Data transfers to the device via PIO
+# This is only needed on PCMCIA devices. All others can do DMA properly.
+config B43_PIO
+        bool
+        depends on B43 && (B43_PCMCIA || B43_FORCE_PIO)
+        select SSB_BLOCKIO
+        default y
+
 config B43_NPHY
         bool "Pre IEEE 802.11n support (BROKEN)"
         depends on B43 && EXPERIMENTAL && BROKEN
@@ -94,3 +102,13 @@ config B43_DEBUG
 
           Say Y, if you want to find out why the driver does not
           work for you.
+
+config B43_FORCE_PIO
+        bool "Force usage of PIO instead of DMA"
+        depends on B43 && B43_DEBUG
+        ---help---
+          This will disable DMA and always enable PIO instead.
+
+          Say N!
+          This is only for debugging the PIO engine code. You do
+          _NOT_ want to enable this.