X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=arch%2Farm64%2Fmm%2Finit.c;h=edc8e950badaacac8ecf0f2b44879b02b121feeb;hp=1fdb7bb7c19845fdc5a1a6ad218be1d8219f88f6;hb=9e5f3ffcf1cb34e7c7beb3f79a96f58536730924;hpb=6104dde096eba9f443845686a2c4b3fa31129eb4

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 1fdb7bb7c198..edc8e950bada 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -124,57 +124,6 @@ static void __init reserve_crashkernel(void)
 }
 #endif /* CONFIG_KEXEC_CORE */
 
-#ifdef CONFIG_CRASH_DUMP
-static int __init early_init_dt_scan_elfcorehdr(unsigned long node,
-		const char *uname, int depth, void *data)
-{
-	const __be32 *reg;
-	int len;
-
-	if (depth != 1 || strcmp(uname, "chosen") != 0)
-		return 0;
-
-	reg = of_get_flat_dt_prop(node, "linux,elfcorehdr", &len);
-	if (!reg || (len < (dt_root_addr_cells + dt_root_size_cells)))
-		return 1;
-
-	elfcorehdr_addr = dt_mem_next_cell(dt_root_addr_cells, &reg);
-	elfcorehdr_size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-	return 1;
-}
-
-/*
- * reserve_elfcorehdr() - reserves memory for elf core header
- *
- * This function reserves the memory occupied by an elf core header
- * described in the device tree. This region contains all the
- * information about primary kernel's core image and is used by a dump
- * capture kernel to access the system memory on primary kernel.
- */
-static void __init reserve_elfcorehdr(void)
-{
-	of_scan_flat_dt(early_init_dt_scan_elfcorehdr, NULL);
-
-	if (!elfcorehdr_size)
-		return;
-
-	if (memblock_is_region_reserved(elfcorehdr_addr, elfcorehdr_size)) {
-		pr_warn("elfcorehdr is overlapped\n");
-		return;
-	}
-
-	memblock_reserve(elfcorehdr_addr, elfcorehdr_size);
-
-	pr_info("Reserving %lldKB of memory at 0x%llx for elfcorehdr\n",
-		elfcorehdr_size >> 10, elfcorehdr_addr);
-}
-#else
-static void __init reserve_elfcorehdr(void)
-{
-}
-#endif /* CONFIG_CRASH_DUMP */
-
 /*
  * Return the maximum physical address for a zone accessible by the given bits
  * limit. If DRAM starts above 32-bit, expand the zone to the maximum
@@ -285,45 +234,10 @@ static int __init early_mem(char *p)
 }
 early_param("mem", early_mem);
 
-static int __init early_init_dt_scan_usablemem(unsigned long node,
-		const char *uname, int depth, void *data)
-{
-	struct memblock_region *usablemem = data;
-	const __be32 *reg;
-	int len;
-
-	if (depth != 1 || strcmp(uname, "chosen") != 0)
-		return 0;
-
-	reg = of_get_flat_dt_prop(node, "linux,usable-memory-range", &len);
-	if (!reg || (len < (dt_root_addr_cells + dt_root_size_cells)))
-		return 1;
-
-	usablemem->base = dt_mem_next_cell(dt_root_addr_cells, &reg);
-	usablemem->size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-	return 1;
-}
-
-static void __init fdt_enforce_memory_region(void)
-{
-	struct memblock_region reg = {
-		.size = 0,
-	};
-
-	of_scan_flat_dt(early_init_dt_scan_usablemem, &reg);
-
-	if (reg.size)
-		memblock_cap_memory_range(reg.base, reg.size);
-}
-
 void __init arm64_memblock_init(void)
 {
 	const s64 linear_region_size = PAGE_END - _PAGE_OFFSET(vabits_actual);
 
-	/* Handle linux,usable-memory-range property */
-	fdt_enforce_memory_region();
-
 	/* Remove memory above our supported physical address size */
 	memblock_remove(1ULL << PHYS_MASK_SHIFT, ULLONG_MAX);
 
@@ -432,8 +346,6 @@ void __init arm64_memblock_init(void)
 
 	early_init_fdt_scan_reserved_mem();
 
-	reserve_elfcorehdr();
-
 	high_memory = __va(memblock_end_of_DRAM() - 1) + 1;
 }