[TC] defxx: TURBOchannel support

This is a set of changes to add TURBOchannel support to the defxx driver.  As
at this point the EISA support in the driver has become the only not having
been converted to the driver model, I took the opportunity to convert it as
well.  Plus support for MMIO in addition to PIO operation as TURBOchannel
requires it anyway.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 26 insertions, 6 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index ad92b6a76ee6..b79711d441a4 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2534,7 +2534,7 @@ config RIONET_RX_SIZE
 
 config FDDI
         bool "FDDI driver support"
-        depends on (PCI || EISA)
+        depends on (PCI || EISA || TC)
         help
           Fiber Distributed Data Interface is a high speed local area network
           design; essentially a replacement for high speed Ethernet. FDDI can
@@ -2544,11 +2544,31 @@ config FDDI
           will say N.
 
 config DEFXX
-        tristate "Digital DEFEA and DEFPA adapter support"
-        depends on FDDI && (PCI || EISA)
-        help
-          This is support for the DIGITAL series of EISA (DEFEA) and PCI
-          (DEFPA) controllers which can connect you to a local FDDI network.
+        tristate "Digital DEFTA/DEFEA/DEFPA adapter support"
+        depends on FDDI && (PCI || EISA || TC)
+        ---help---
+          This is support for the DIGITAL series of TURBOchannel (DEFTA),
+          EISA (DEFEA) and PCI (DEFPA) controllers which can connect you
+          to a local FDDI network.
+
+          To compile this driver as a module, choose M here: the module
+          will be called defxx.  If unsure, say N.
+
+config DEFXX_MMIO
+        bool
+        prompt "Use MMIO instead of PIO" if PCI || EISA
+        depends on DEFXX
+        default n if PCI || EISA
+        default y
+        ---help---
+          This instructs the driver to use EISA or PCI memory-mapped I/O
+          (MMIO) as appropriate instead of programmed I/O ports (PIO).
+          Enabling this gives an improvement in processing time in parts
+          of the driver, but it may cause problems with EISA (DEFEA)
+          adapters.  TURBOchannel does not have the concept of I/O ports,
+          so MMIO is always used for these (DEFTA) adapters.
+
+          If unsure, say N.
 
 config SKFP
         tristate "SysKonnect FDDI PCI support"