[PATCH] ioc4: CONFIG split

The SGI IOC4 I/O controller chip drivers are currently all configured by
CONFIG_BLK_DEV_SGIIOC4.  This is undesirable as not all IOC4 hardware features
are needed by all systems.

This patch adds two configuration variables, CONFIG_SGI_IOC4 for core IOC4
driver support (see patch 1/3 in this series for further explanation) and
CONFIG_SERIAL_SGI_IOC4 to independently enable serial port support.

Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Acked-by: Pat Gefre <pfg@sgi.com>
Acked-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 21 insertions, 1 deletions

diff --git a/drivers/sn/Kconfig b/drivers/sn/Kconfig
new file mode 100644
index 000000000000..20f7515ab830
--- /dev/null
+++ b/drivers/sn/Kconfig
@@ -0,0 +1,20 @@
+#
+# Miscellaneous SN-specific devices
+#
+
+menu "SN Devices"
+
+config SGI_IOC4
+        tristate "SGI IOC4 Base IO support"
+        depends on IA64_GENERIC || IA64_SGI_SN2
+        default m
+        ---help---
+        This option enables basic support for the SGI IOC4-based Base IO
+        controller card.  This option does not enable any specific
+        functions on such a card, but provides necessary infrastructure
+        for other drivers to utilize.
+
+        If you have an SGI Altix with an IOC4-based
+        I/O controller say Y.  Otherwise say N.
+
+endmenu
diff --git a/drivers/sn/Makefile b/drivers/sn/Makefile
index 631e54958448..c2a284185372 100644
--- a/drivers/sn/Makefile
+++ b/drivers/sn/Makefile
@@ -3,4 +3,4 @@
 #
 #
 
-obj-$(CONFIG_BLK_DEV_SGIIOC4) += ioc4.o
+obj-$(CONFIG_SGI_IOC4) += ioc4.o