diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index db269dd97..eaf60e0fe 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -3,7 +3,6 @@ config PPC
 	select HAVE_CONFIGURABLE_TEXT_BASE
 	select HAS_KALLSYMS
 	select HAS_MODULES
-	select HAVE_CONFIGURABLE_MEMORY_LAYOUT
 	select OFTREE
 	default y
 
diff --git a/arch/ppc/cpu-85xx/start.S b/arch/ppc/cpu-85xx/start.S
index 0402cf0ed..57f007b78 100644
--- a/arch/ppc/cpu-85xx/start.S
+++ b/arch/ppc/cpu-85xx/start.S
@@ -879,9 +879,6 @@ relocate_code:
 	sub	r3, r3, r5
 	lwz	r5,GOT(__init_end)	/* Copy to init_end only */
 	sub	r5,r5,r4
-	lis	r10, 0xffff0000@h	/* Round down to 64KB */
-	ori	r10, r10, 0xffff0000@l
-	and	r3, r3, r10		/* Destination */
 	mr	r1, r3
 	mr	r10, r3
 	li	r6,CACHELINE_SIZE
diff --git a/arch/ppc/lib/board.c b/arch/ppc/lib/board.c
index 18d2588e2..3f13db921 100644
--- a/arch/ppc/lib/board.c
+++ b/arch/ppc/lib/board.c
@@ -46,11 +46,7 @@ void board_init_r (ulong end_of_ram)
 	_text_base = end_of_ram;
 #endif
 
-	/*
-	 * FIXME: 128k stack size. Is this enough? should
-	 *        it be configurable?
-	 */
-	malloc_end = (_text_base - (128 << 10)) & ~(4095);
+	malloc_end = (_text_base - STACK_SIZE) & ~(4095);
 
 	debug("malloc_end: 0x%08lx\n", malloc_end);
 	debug("TEXT_BASE after relocation: 0x%08lx\n", _text_base);
diff --git a/arch/ppc/mach-mpc5xxx/Kconfig b/arch/ppc/mach-mpc5xxx/Kconfig
index 180aa32ad..1ecce3a56 100644
--- a/arch/ppc/mach-mpc5xxx/Kconfig
+++ b/arch/ppc/mach-mpc5xxx/Kconfig
@@ -32,6 +32,7 @@ config ARCH_MPC5200
 config MPC5xxx
 	bool
 	depends on MACH_PHYCORE_MPC5200B_TINY
+	select HAVE_CONFIGURABLE_MEMORY_LAYOUT
 	default y
 
 menu "Board specific settings"
diff --git a/arch/ppc/mach-mpc85xx/barebox.lds.S b/arch/ppc/mach-mpc85xx/barebox.lds.S
index 980359e3a..87ab7acfe 100644
--- a/arch/ppc/mach-mpc85xx/barebox.lds.S
+++ b/arch/ppc/mach-mpc85xx/barebox.lds.S
@@ -32,6 +32,8 @@ PHDRS
 SECTIONS
 {
   . = TEXT_BASE;
+   _stext = .;
+   PROVIDE (stext = .);
 
   .interp        : { *(.interp)		}
   .hash          : { *(.hash)		}
@@ -96,8 +98,6 @@ SECTIONS
     *(.dynamic*)
     CONSTRUCTORS
   }
-  _edata  =  .;
-  PROVIDE (edata = .);
 
   . = .;
   __barebox_cmd_start = .;
@@ -118,6 +118,9 @@ SECTIONS
   __ex_table : { *(__ex_table) }
   __stop___ex_table = .;
 
+  _edata  =  .;
+  PROVIDE (edata = .);
+
   . = ALIGN(256);
   __init_begin = .;
   .text.init : { *(.text.init) }
@@ -130,7 +133,6 @@ SECTIONS
   .bootpg RESET_VECTOR_ADDRESS - 0xffc :
   {
     _text = .;
-    _stext = .;
     arch/ppc/cpu-85xx/start.o	(.bootpg)
   } :text = 0xffff
 
diff --git a/arch/ppc/mach-mpc85xx/cpu.c b/arch/ppc/mach-mpc85xx/cpu.c
index 17a1c4cb3..4f4f06b04 100644
--- a/arch/ppc/mach-mpc85xx/cpu.c
+++ b/arch/ppc/mach-mpc85xx/cpu.c
@@ -24,7 +24,10 @@
 
 #include <config.h>
 #include <common.h>
+#include <memory.h>
+#include <init.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm-generic/memory_layout.h>
 #include <mach/mmu.h>
 #include <mach/immap_85xx.h>
 
@@ -81,3 +84,11 @@ phys_size_t fsl_get_effective_memsize(void)
 
 	return sdram_size;
 }
+
+static int fsl_reserve_region(void)
+{
+	request_sdram_region("stack", _text_base - STACK_SIZE,
+			STACK_SIZE);
+	return 0;
+}
+coredevice_initcall(fsl_reserve_region);