From 3f394f80645bf0c38a30042ba605c71663331035 Mon Sep 17 00:00:00 2001
From: Peter De Schrijver <pdeschrijver@nvidia.com>
Date: Thu, 12 Jun 2014 18:36:35 +0300
Subject: [PATCH] ARM: tegra: export apb dma readl/writel

Export APB DMA readl and writel. These are needed because we can't
access the fuses directly on Tegra20 without potentially causing a
system hang. Also have the APB DMA readl and writel return an error in
case of a read failure instead of just returning zero or ignore write
failures.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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