From d80cca29fe8876278e6e0c863c869a4cade7e8ad Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Wed, 22 Oct 2014 12:13:05 +0200
Subject: [PATCH] arm: kirkwood: Move some SoC files into new
 arch/arm/mvebu-common

By moving some kirkwood files into a Marvell common directory, those files
can be used by other Marvell platforms as well. The name mvebu is taken
from the Linux kernel source tree. It has been chosen there to represent
the SoC's from the Marvell EBU (Engineering Business Unit). Those SoC's
currently are:

Armada 370/375/XP, Dove, mv78xx0, Kirkwood, Orion5x

This will be used by the upcoming Armada XP (MV78460) platform support.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
---
 Makefile                                               |  4 ++++
 arch/arm/cpu/arm926ejs/kirkwood/Makefile               |  4 +---
 arch/arm/mvebu-common/Makefile                         | 10 ++++++++++
 .../{cpu/arm926ejs/kirkwood => mvebu-common}/dram.c    |  8 +++++++-
 .../{cpu/arm926ejs/kirkwood => mvebu-common}/timer.c   |  0
 5 files changed, 22 insertions(+), 4 deletions(-)
 create mode 100644 arch/arm/mvebu-common/Makefile
 rename arch/arm/{cpu/arm926ejs/kirkwood => mvebu-common}/dram.c (91%)
 rename arch/arm/{cpu/arm926ejs/kirkwood => mvebu-common}/timer.c (100%)

diff --git a/Makefile b/Makefile
index 99097e1e57..4d54bd285c 100644
--- a/Makefile
+++ b/Makefile
@@ -652,6 +652,10 @@ ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
 libs-y += arch/$(ARCH)/imx-common/
 endif
 
+ifneq (,$(filter $(SOC), kirkwood))
+libs-y += arch/$(ARCH)/mvebu-common/
+endif
+
 libs-$(CONFIG_ARM) += arch/arm/cpu/
 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
 
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/Makefile b/arch/arm/cpu/arm926ejs/kirkwood/Makefile
index c230ce8994..df4756e4bd 100644
--- a/arch/arm/cpu/arm926ejs/kirkwood/Makefile
+++ b/arch/arm/cpu/arm926ejs/kirkwood/Makefile
@@ -7,7 +7,5 @@
 #
 
 obj-y	= cpu.o
-obj-y	+= dram.o
-obj-y	+= mpp.o
-obj-y	+= timer.o
 obj-y	+= cache.o
+obj-y	+= mpp.o
diff --git a/arch/arm/mvebu-common/Makefile b/arch/arm/mvebu-common/Makefile
new file mode 100644
index 0000000000..4d20d2ca53
--- /dev/null
+++ b/arch/arm/mvebu-common/Makefile
@@ -0,0 +1,10 @@
+#
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	= dram.o
+obj-y	+= timer.o
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/dram.c b/arch/arm/mvebu-common/dram.c
similarity index 91%
rename from arch/arm/cpu/arm926ejs/kirkwood/dram.c
rename to arch/arm/mvebu-common/dram.c
index d73ae47c34..bb5989b3e8 100644
--- a/arch/arm/cpu/arm926ejs/kirkwood/dram.c
+++ b/arch/arm/mvebu-common/dram.c
@@ -110,7 +110,13 @@ int dram_init(void)
 		if (gd->bd->bi_dram[i].start != gd->ram_size)
 			break;
 
-		gd->ram_size += gd->bd->bi_dram[i].size;
+		/*
+		 * Don't report more than 3GiB of SDRAM, otherwise there is no
+		 * address space left for the internal registers etc.
+		 */
+		if ((gd->ram_size + gd->bd->bi_dram[i].size != 0) &&
+		    (gd->ram_size + gd->bd->bi_dram[i].size <= (3 << 30)))
+			gd->ram_size += gd->bd->bi_dram[i].size;
 
 	}
 
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/timer.c b/arch/arm/mvebu-common/timer.c
similarity index 100%
rename from arch/arm/cpu/arm926ejs/kirkwood/timer.c
rename to arch/arm/mvebu-common/timer.c
-- 
2.39.5