v4.19.13 snapshot.
diff --git a/arch/arm/mach-davinci/ddr2.h b/arch/arm/mach-davinci/ddr2.h
new file mode 100644
index 0000000..4f7d782
--- /dev/null
+++ b/arch/arm/mach-davinci/ddr2.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#define DDR2_SDRCR_OFFSET	0xc
+#define DDR2_SRPD_BIT		(1 << 23)
+#define DDR2_MCLKSTOPEN_BIT	(1 << 30)
+#define DDR2_LPMODEN_BIT	(1 << 31)