X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Farm%2Fmm%2Finit.c;h=c19571c40a21ca62902d65cd01dcb8db9ea4f178;hb=8f4b8c7613928d5c6da43715fedc00a7b1ee53be;hp=76f82ae44efb177ae925cc998b9c3ce2c8470bb3;hpb=df3256f9ab7ae2127144de5ba2abca332278a42d;p=karo-tx-linux.git

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 76f82ae44efb..c19571c40a21 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
@@ -85,7 +95,7 @@ void show_mem(unsigned int filter)
 	struct meminfo * mi = &meminfo;
 
 	printk("Mem-info:\n");
-	show_free_areas();
+	show_free_areas(filter);
 
 	for_each_bank (i, mi) {
 		struct membank *bank = &mi->bank[i];
@@ -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)
 {
 }
@@ -318,6 +330,12 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
 	memblock_reserve(__pa(_stext), _end - _stext);
 #endif
 #ifdef CONFIG_BLK_DEV_INITRD
+	if (phys_initrd_size &&
+	    !memblock_is_region_memory(phys_initrd_start, phys_initrd_size)) {
+		pr_err("INITRD: 0x%08lx+0x%08lx is not a memory region - disabling initrd\n",
+		       phys_initrd_start, phys_initrd_size);
+		phys_initrd_start = phys_initrd_size = 0;
+	}
 	if (phys_initrd_size &&
 	    memblock_is_region_reserved(phys_initrd_start, phys_initrd_size)) {
 		pr_err("INITRD: 0x%08lx+0x%08lx overlaps in-use memory region - disabling initrd\n",
@@ -334,6 +352,7 @@ 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)
@@ -622,7 +641,8 @@ void __init mem_init(void)
 			"    modules : 0x%08lx - 0x%08lx   (%4ld MB)\n"
 			"      .init : 0x%p" " - 0x%p" "   (%4d kB)\n"
 			"      .text : 0x%p" " - 0x%p" "   (%4d kB)\n"
-			"      .data : 0x%p" " - 0x%p" "   (%4d kB)\n",
+			"      .data : 0x%p" " - 0x%p" "   (%4d kB)\n"
+			"       .bss : 0x%p" " - 0x%p" "   (%4d kB)\n",
 
 			MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) +
 				(PAGE_SIZE)),
@@ -644,7 +664,8 @@ void __init mem_init(void)
 
 			MLK_ROUNDUP(__init_begin, __init_end),
 			MLK_ROUNDUP(_text, _etext),
-			MLK_ROUNDUP(_sdata, _edata));
+			MLK_ROUNDUP(_sdata, _edata),
+			MLK_ROUNDUP(__bss_start, __bss_stop));
 
 #undef MLK
 #undef MLM