[U-Boot] [PATCH v4 01/20] arm: kirkwood: Move some SoC files into new arch/arm/mvebu-common

[Stefan Roese]

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 at denx.de>
Tested-by: Luka Perkov <luka at openwrt.org>
Acked-by: Prafulla Wadaskar <prafulla at marvell.com>

---

Changes in v4: None
Changes in v3:
- Added Acked-by from Prafulla to all Kirkwood patches
- Added Tested-by from Luka

Changes in v2: None

 Makefile                                                  |  4 ++++
 arch/arm/cpu/arm926ejs/kirkwood/Makefile                  |  4 +---
 arch/arm/mvebu-common/Makefile                            | 10 ++++++++++
 arch/arm/{cpu/arm926ejs/kirkwood => mvebu-common}/dram.c  |  8 +++++++-
 arch/arm/{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 99097e1..4d54bd2 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 c230ce8..df4756e 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 0000000..4d20d2c
--- /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 at 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 d73ae47..bb5989b 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
-- 
2.1.2