ARM: tegra: emc: convert tegra2_emc to a platform driver

This is the first step in making it device-tree aware and get rid of the
in-kernel EMC tables (of which there are none in mainline, thankfully).

Changes since v3:

* moved to devm_request_and_ioremap() in probe()

Changes since v2:

* D'oh -- missed a couple of variables that were added, never used and then
  later removed in a later patch.

Changes since v1:

* Fixed messed up indentation
* Removed code that should be gone (was added here and removed later in series)

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/include/linux/platform_data/tegra_emc.h b/include/linux/platform_data/tegra_emc.h
new file mode 100644
index 000000000000..df67505e98f8
--- /dev/null
+++ b/include/linux/platform_data/tegra_emc.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2011 Google, Inc.
+ *
+ * Author:
+ *      Colin Cross <ccross@android.com>
+ *      Olof Johansson <olof@lixom.net>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __TEGRA_EMC_H_
+#define __TEGRA_EMC_H_
+
+#define TEGRA_EMC_NUM_REGS 46
+
+struct tegra_emc_table {
+        unsigned long rate;
+        u32 regs[TEGRA_EMC_NUM_REGS];
+};
+
+struct tegra_emc_pdata {
+        int num_tables;
+        struct tegra_emc_table *tables;
+};
+
+#endif