libata: make SFF support optional
Now that SFF support is completely separated out from the core layer,
it can be made optional. Add CONFIG_ATA_SFF and let SFF drivers
depend on it. If CONFIG_ATA_SFF isn't set, all codes in libata-sff.c
and data structures for SFF support are disabled. This saves good
number of bytes for small systems.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index ea665c2..48c8fc5 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -49,6 +49,32 @@
If unsure, say N.
+config SATA_SIL24
+ tristate "Silicon Image 3124/3132 SATA support"
+ depends on PCI
+ help
+ This option enables support for Silicon Image 3124/3132 Serial ATA.
+
+ If unsure, say N.
+
+config SATA_FSL
+ tristate "Freescale 3.0Gbps SATA support"
+ depends on FSL_SOC
+ help
+ This option enables support for Freescale 3.0Gbps SATA controller.
+ It can be found on MPC837x and MPC8315.
+
+ If unsure, say N.
+
+config ATA_SFF
+ bool "ATA SFF support"
+ default y
+ help
+ This option adds support for ATA controllers with SFF
+ compliant or similar programming interface.
+
+if ATA_SFF
+
config SATA_SVW
tristate "ServerWorks Frodo / Apple K2 SATA support"
depends on PCI
@@ -125,14 +151,6 @@
If unsure, say N.
-config SATA_SIL24
- tristate "Silicon Image 3124/3132 SATA support"
- depends on PCI
- help
- This option enables support for Silicon Image 3124/3132 Serial ATA.
-
- If unsure, say N.
-
config SATA_SIS
tristate "SiS 964/965/966/180 SATA support"
depends on PCI
@@ -183,15 +201,6 @@
firmware in the BIOS. This driver can sometimes handle
otherwise unsupported hardware.
-config SATA_FSL
- tristate "Freescale 3.0Gbps SATA support"
- depends on FSL_SOC
- help
- This option enables support for Freescale 3.0Gbps SATA controller.
- It can be found on MPC837x and MPC8315.
-
- If unsure, say N.
-
config PATA_ALI
tristate "ALi PATA support (Experimental)"
depends on PCI && EXPERIMENTAL
@@ -679,4 +688,5 @@
If unsure, say N.
+endif # ATA_SFF
endif # ATA