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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2016-01-22 11:28:07 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-03-29 10:11:44 -0700
commitb3c1be1b789cca6d3e39c950dfed690f0511fe76 (patch)
treed51a9cc6f9393aa0cf1acf39291c20343939b865 /arch/x86/Kconfig
parentebdf4040c16df572d95ea63fc1f64c156baeb947 (diff)
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base: isa: Remove X86_32 dependency
Many motherboards utilize a LPC to ISA bridge in order to decode ISA-style port-mapped I/O addresses. This is particularly true for embedded motherboards supporting the PC/104 bus (a bus specification derived from ISA). These motherboards are now commonly running 64-bit x86 processors. The X86_32 dependency should be removed from the ISA bus configuration option in order to support these newer motherboards. A new config option, CONFIG_ISA_BUS, is introduced to allow for the compilation of the ISA bus driver independent of the CONFIG_ISA option. Devices which communicate via ISA-compatible buses can now be supported independent of the dependencies of the CONFIG_ISA option. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2dc18605831f..a5977986f38b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2472,10 +2472,16 @@ config ISA_DMA_API
Enables ISA-style DMA support for devices requiring such controllers.
If unsure, say Y.
+config ISA_BUS
+ bool "ISA bus support"
+ help
+ Enables ISA bus support for devices requiring such controllers.
+
if X86_32
config ISA
bool "ISA support"
+ depends on ISA_BUS
---help---
Find out whether you have ISA slots on your motherboard. ISA is the
name of a bus system, i.e. the way the CPU talks to the other stuff
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