6 files changed, 24 insertions, 4 deletions

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index 5ccde7cf39e8..6695fb33afbf 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -37,4 +37,15 @@ config MACH_REALVIEW_PB1176
         help
           Include support for the ARM(R) RealView ARM1176 Platform Baseboard.
 
+config REALVIEW_HIGH_PHYS_OFFSET
+        bool "High physical base address for the RealView platform"
+        depends on !MACH_REALVIEW_PB1176
+        default y
+        help
+          RealView boards other than PB1176 have the RAM available at
+          0x70000000, 256MB of which being mirrored at 0x00000000. If
+          the board supports 512MB of RAM, this option allows the
+          memory to be accessed contiguously at the high physical
+          offset.
+
 endmenu
diff --git a/arch/arm/mach-realview/Makefile.boot b/arch/arm/mach-realview/Makefile.boot
index c7e75acfe6c9..d97e003d3df4 100644
--- a/arch/arm/mach-realview/Makefile.boot
+++ b/arch/arm/mach-realview/Makefile.boot
@@ -1,4 +1,9 @@
+ifeq ($(CONFIG_REALVIEW_HIGH_PHYS_OFFSET),y)
+   zreladdr-y   := 0x70008000
+params_phys-y   := 0x70000100
+initrd_phys-y   := 0x70800000
+else
    zreladdr-y   := 0x00008000
 params_phys-y   := 0x00000100
 initrd_phys-y   := 0x00800000
-
+endif
diff --git a/arch/arm/mach-realview/include/mach/memory.h b/arch/arm/mach-realview/include/mach/memory.h
index 0e673483a141..759ed10d74fe 100644
--- a/arch/arm/mach-realview/include/mach/memory.h
+++ b/arch/arm/mach-realview/include/mach/memory.h
@@ -23,7 +23,11 @@
 /*
  * Physical DRAM offset.
  */
+#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET
+#define PHYS_OFFSET             UL(0x70000000)
+#else
 #define PHYS_OFFSET             UL(0x00000000)
+#endif
 
 /*
  * Virtual view <-> DMA view memory address translations
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index eb829eb1ebe2..f6e04edf922d 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -392,7 +392,7 @@ MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
         .phys_io        = REALVIEW_EB_UART0_BASE,
         .io_pg_offst    = (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc,
-        .boot_params    = 0x00000100,
+        .boot_params    = PHYS_OFFSET + 0x00000100,
         .map_io         = realview_eb_map_io,
         .init_irq       = gic_init_irq,
         .timer          = &realview_eb_timer,
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index cccdb3eb90fe..a9fac653b305 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -284,7 +284,7 @@ MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
         .phys_io        = REALVIEW_PB1176_UART0_BASE,
         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc,
-        .boot_params    = 0x00000100,
+        .boot_params    = PHYS_OFFSET + 0x00000100,
         .map_io         = realview_pb1176_map_io,
         .init_irq       = gic_init_irq,
         .timer          = &realview_pb1176_timer,
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index 8b863148ec18..8a27cd0a4741 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -334,7 +334,7 @@ MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
         .phys_io        = REALVIEW_PB11MP_UART0_BASE,
         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE) >> 18) & 0xfffc,
-        .boot_params    = 0x00000100,
+        .boot_params    = PHYS_OFFSET + 0x00000100,
         .map_io         = realview_pb11mp_map_io,
         .init_irq       = gic_init_irq,
         .timer          = &realview_pb11mp_timer,