[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>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index ed41d90..aed4a9b 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -58,4 +58,6 @@
source "drivers/infiniband/Kconfig"
+source "drivers/sn/Kconfig"
+
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 15681de..3167be5 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -61,6 +61,6 @@
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_MMC) += mmc/
obj-$(CONFIG_INFINIBAND) += infiniband/
-obj-$(CONFIG_BLK_DEV_SGIIOC4) += sn/
+obj-$(CONFIG_SGI_IOC4) += sn/
obj-y += firmware/
obj-$(CONFIG_CRYPTO) += crypto/
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 3ac0a53..0273f12 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -672,8 +672,8 @@
chipsets.
config BLK_DEV_SGIIOC4
- tristate "Silicon Graphics IOC4 chipset support"
- depends on IA64_SGI_SN2 || IA64_GENERIC
+ tristate "Silicon Graphics IOC4 chipset ATA/ATAPI support"
+ depends on (IA64_SGI_SN2 || IA64_GENERIC) && SGI_IOC4
help
This driver adds PIO & MultiMode DMA-2 support for the SGI IOC4
chipset, which has one channel and can support two devices.
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 6a15703..25fcef2 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -843,4 +843,13 @@
To compile this driver as a module, choose M here: the
module will be called jsm.
+config SERIAL_SGI_IOC4
+ tristate "SGI IOC4 controller serial support"
+ depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
+ select SERIAL_CORE
+ help
+ If you have an SGI Altix with an IOC4 based Base IO card
+ and wish to use the serial ports on this card, say Y.
+ Otherwise, say N.
+
endmenu
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 81b77d7..8f1cdde 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -51,4 +51,4 @@
obj-$(CONFIG_SERIAL_JSM) += jsm/
obj-$(CONFIG_SERIAL_TXX9) += serial_txx9.o
obj-$(CONFIG_SERIAL_VR41XX) += vr41xx_siu.o
-obj-$(CONFIG_BLK_DEV_SGIIOC4) += ioc4_serial.o
+obj-$(CONFIG_SERIAL_SGI_IOC4) += ioc4_serial.o
diff --git a/drivers/sn/Kconfig b/drivers/sn/Kconfig
new file mode 100644
index 0000000..20f7515
--- /dev/null
+++ b/drivers/sn/Kconfig
@@ -0,0 +1,20 @@
+#
+# Miscellaneous SN-specific devices
+#
+
+menu "SN Devices"
+
+config SGI_IOC4
+ tristate "SGI IOC4 Base IO support"
+ depends on IA64_GENERIC || IA64_SGI_SN2
+ default m
+ ---help---
+ This option enables basic support for the SGI IOC4-based Base IO
+ controller card. This option does not enable any specific
+ functions on such a card, but provides necessary infrastructure
+ for other drivers to utilize.
+
+ If you have an SGI Altix with an IOC4-based
+ I/O controller say Y. Otherwise say N.
+
+endmenu
diff --git a/drivers/sn/Makefile b/drivers/sn/Makefile
index 631e549..c2a2841 100644
--- a/drivers/sn/Makefile
+++ b/drivers/sn/Makefile
@@ -3,4 +3,4 @@
#
#
-obj-$(CONFIG_BLK_DEV_SGIIOC4) += ioc4.o
+obj-$(CONFIG_SGI_IOC4) += ioc4.o