[PATCH] EDAC: Add memory scrubbing controls API to core

[powerpc.git] / Documentation / drivers / edac / edac.txt

diff --git a/Documentation/drivers/edac/edac.txt b/Documentation/drivers/edac/edac.txt
index 7b3d969..3c5a9e4 100644 (file)
--- a/Documentation/drivers/edac/edac.txt
+++ b/Documentation/drivers/edac/edac.txt
@@ -339,7 +339,21 @@ Device Symlink:
 
        'device'
 
-       Symlink to the memory controller device
+       Symlink to the memory controller device.
+
+Sdram memory scrubbing rate:
+
+       'sdram_scrub_rate'
+
+       Read/Write attribute file that controls memory scrubbing. The scrubbing
+       rate is set by writing a minimum bandwith in bytes/sec to the attribute
+       file. The rate will be translated to an internal value that gives at
+       least the specified rate.
+
+       Reading the file will return the actual scrubbing rate employed.
+
+       If configuration fails or memory scrubbing is not implemented, the value
+       of the attribute file will be -1.