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authorDavid E. Box <david.e.box@linux.intel.com>2014-09-18 09:13:51 +0400
committerIngo Molnar <mingo@kernel.org>2014-09-19 15:08:43 +0400
commited2226bd4d4a53bcc3b2ea0b1b28e955ebc15da7 (patch)
tree8b5892beccf4c7985a914bf7c96742aebf3dbf22 /arch/x86/Kconfig
parentced3ce760b8df08e8bafba44f6b40407df2d0402 (diff)
downloadlinux-ed2226bd4d4a53bcc3b2ea0b1b28e955ebc15da7.tar.xz
x86/platform/intel/iosf: Add debugfs config option for IOSF
Makes the IOSF sideband available through debugfs. Allows developers to experiment with using the sideband to provide debug and analytical tools for units on the SoC. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: http://lkml.kernel.org/r/1411017231-20807-4-git-send-email-david.e.box@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d6334f489214..6354964ff949 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -496,6 +496,19 @@ config IOSF_MBI
You should say Y if you are running a kernel on one of these SoC's.
+config IOSF_MBI_DEBUG
+ bool "Enable IOSF sideband access through debugfs"
+ depends on IOSF_MBI && DEBUG_FS
+ ---help---
+ Select this option to expose the IOSF sideband access registers (MCR,
+ MDR, MCRX) through debugfs to write and read register information from
+ different units on the SoC. This is most useful for obtaining device
+ state information for debug and analysis. As this is a general access
+ mechanism, users of this option would have specific knowledge of the
+ device they want to access.
+
+ If you don't require the option or are in doubt, say N.
+
config X86_RDC321X
bool "RDC R-321x SoC"
depends on X86_32