1 files changed, 47 insertions, 0 deletions

diff --git a/arch/m68k/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c
index 78130984db95..ee043540bfa2 100644
--- a/arch/m68k/platform/54xx/config.c
+++ b/arch/m68k/platform/54xx/config.c
@@ -13,11 +13,17 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <asm/pgalloc.h>
 #include <asm/machdep.h>
 #include <asm/coldfire.h>
 #include <asm/m54xxsim.h>
 #include <asm/mcfuart.h>
 #include <asm/m54xxgpt.h>
+#ifdef CONFIG_MMU
+#include <asm/mmu_context.h>
+#endif
 
 /***************************************************************************/
 
@@ -95,8 +101,49 @@ static void mcf54xx_reset(void)
 
 /***************************************************************************/
 
+#ifdef CONFIG_MMU
+
+unsigned long num_pages;
+
+static void __init mcf54xx_bootmem_alloc(void)
+{
+        unsigned long start_pfn;
+        unsigned long memstart;
+
+        /* _rambase and _ramend will be naturally page aligned */
+        m68k_memory[0].addr = _rambase;
+        m68k_memory[0].size = _ramend - _rambase;
+
+        /* compute total pages in system */
+        num_pages = (_ramend - _rambase) >> PAGE_SHIFT;
+
+        /* page numbers */
+        memstart = PAGE_ALIGN(_ramstart);
+        min_low_pfn = _rambase >> PAGE_SHIFT;
+        start_pfn = memstart >> PAGE_SHIFT;
+        max_low_pfn = _ramend >> PAGE_SHIFT;
+        high_memory = (void *)_ramend;
+
+        m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;
+        module_fixup(NULL, __start_fixup, __stop_fixup);
+
+        /* setup bootmem data */
+        m68k_setup_node(0);
+        memstart += init_bootmem_node(NODE_DATA(0), start_pfn,
+                min_low_pfn, max_low_pfn);
+        free_bootmem_node(NODE_DATA(0), memstart, _ramend - memstart);
+}
+
+#endif /* CONFIG_MMU */
+
+/***************************************************************************/
+
 void __init config_BSP(char *commandp, int size)
 {
+#ifdef CONFIG_MMU
+        mcf54xx_bootmem_alloc();
+        mmu_context_init();
+#endif
         mach_reset = mcf54xx_reset;
         m54xx_uarts_init();
 }