From 1918660b9045c04545f5c5088f573c67ecff9927 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Fri, 16 May 2014 23:25:41 +0200
Subject: [PATCH] sparc32: fix sparse warning in io-unit.c

Fix following warning:
io-unit.c:56:13: warning: incorrect type in assignment (different address spaces)

The page table for the io unit resides in __iomem.
Fix up all users of the io unit page table.
Introduce sbus helers for all read/write operations.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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