[PATCH] powerpc/powernv: Update dump README file

[Vasant Hegde]

Update dump README file content.

Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/opal-dump.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index e102a80..9bc8ad3 100644
--- a/arch/powerpc/platforms/powernv/opal-dump.c
+++ b/arch/powerpc/platforms/powernv/opal-dump.c
@@ -317,9 +317,17 @@ static struct notifier_block dump_nb = {
 };
 
 
-/* FIXME: debugfs README message */
+/* debugfs README message */
 static const char readme_msg[] =
-	"This file will be populated shortly..";
+	"Platform dump HOWTO:\n\n"
+	"files:\n"
+	"  dump                  - Binary file, contains actual dump data\n"
+	"  dump_available (r--)  - New dump available notification\n"
+	"                          0 : No dump present\n"
+	"                          1 : Dump present\n"
+	"  dump_control(-w-)     - Dump control file\n"
+	"                          1 : Send acknowledgement (dump copied)\n"
+	"                          2 : Initiate FipS dump\n";
 
 /* debugfs dump_control file operations */
 static ssize_t dump_control_write(struct file *file,