X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Farm%2Fmm%2Fnommu.c;h=d0e66424a59720886d81908643ba1431afdd609e;hb=97d41e90fe61399b99d74820cb7f2d6e0fbac91d;hp=1464ed817b5dc87b1d456a898bf66c8bc9b4007f;hpb=a144a5633c1e625c3134c2ce8d549a054468fd98;p=powerpc.git

diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 1464ed817b..d0e66424a5 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -11,6 +11,49 @@
 #include <asm/io.h>
 #include <asm/page.h>
 
+#include "mm.h"
+
+extern void _stext, __data_start, _end;
+
+/*
+ * Reserve the various regions of node 0
+ */
+void __init reserve_node_zero(pg_data_t *pgdat)
+{
+	/*
+	 * Register the kernel text and data with bootmem.
+	 * Note that this can only be in node 0.
+	 */
+#ifdef CONFIG_XIP_KERNEL
+	reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start);
+#else
+	reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext);
+#endif
+
+	/*
+	 * Register the exception vector page.
+	 * some architectures which the DRAM is the exception vector to trap,
+	 * alloc_page breaks with error, although it is not NULL, but "0."
+	 */
+	reserve_bootmem_node(pgdat, CONFIG_VECTORS_BASE, PAGE_SIZE);
+}
+
+/*
+ * paging_init() sets up the page tables, initialises the zone memory
+ * maps, and sets up the zero page, bad page and bad page tables.
+ */
+void __init paging_init(struct meminfo *mi, struct machine_desc *mdesc)
+{
+	bootmem_init(mi);
+}
+
+/*
+ * We don't need to do anything here for nommu machines.
+ */
+void setup_mm_for_reboot(char mode)
+{
+}
+
 void flush_dcache_page(struct page *page)
 {
 	__cpuc_flush_dcache_page(page_address(page));