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-rw-r--r--arch/arm/mm/init.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 3f17ea146f0..2c2cce9cd8c 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -15,12 +15,14 @@
#include <linux/mman.h>
#include <linux/nodemask.h>
#include <linux/initrd.h>
+#include <linux/of_fdt.h>
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
#include <linux/sort.h>
#include <asm/mach-types.h>
+#include <asm/prom.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/sizes.h>
@@ -71,6 +73,14 @@ static int __init parse_tag_initrd2(const struct tag *tag)
__tagtable(ATAG_INITRD2, parse_tag_initrd2);
+#ifdef CONFIG_OF_FLATTREE
+void __init early_init_dt_setup_initrd_arch(unsigned long start, unsigned long end)
+{
+ phys_initrd_start = start;
+ phys_initrd_size = end - start;
+}
+#endif /* CONFIG_OF_FLATTREE */
+
/*
* This keeps memory configuration data used by a couple memory
* initialization functions, as well as show_mem() for the skipping
@@ -273,13 +283,15 @@ static void __init arm_bootmem_free(unsigned long min, unsigned long max_low,
free_area_init_node(0, zone_size, min, zhole_size);
}
-#ifndef CONFIG_SPARSEMEM
+#ifdef CONFIG_HAVE_ARCH_PFN_VALID
int pfn_valid(unsigned long pfn)
{
return memblock_is_memory(pfn << PAGE_SHIFT);
}
EXPORT_SYMBOL(pfn_valid);
+#endif
+#ifndef CONFIG_SPARSEMEM
static void arm_memory_present(void)
{
}
@@ -334,6 +346,7 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
#endif
arm_mm_memblock_reserve();
+ arm_dt_memblock_reserve();
/* reserve any platform specific memblock areas */
if (mdesc->reserve)