tegra: Add EMC support for optimal memory timings

Add support for setting up the memory controller parameters. Boards
can set up an appropriate table in the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 0351a25..49251d5 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -60,6 +60,8 @@
 	COMPAT_NVIDIA_TEGRA20_USB,	/* Tegra2 USB port */
 	COMPAT_NVIDIA_TEGRA20_I2C,	/* Tegra2 i2c */
 	COMPAT_NVIDIA_TEGRA20_DVC,	/* Tegra2 dvc (really just i2c) */
+	COMPAT_NVIDIA_TEGRA20_EMC,	/* Tegra2 memory controller */
+	COMPAT_NVIDIA_TEGRA20_EMC_TABLE, /* Tegra2 memory timing table */
 
 	COMPAT_COUNT,
 };