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-rw-r--r--arch/powerpc/kernel/prom.c5
-rw-r--r--arch/powerpc/kernel/prom_init.c9
2 files changed, 9 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 8d0415b080b..969f4abcc0b 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1267,6 +1267,11 @@ static void __init early_reserve_mem(void)
reserve_map = (u64 *)(((unsigned long)initial_boot_params) +
initial_boot_params->off_mem_rsvmap);
+
+ /* before we do anything, lets reserve the dt blob */
+ lmb_reserve(__pa((unsigned long)initial_boot_params),
+ initial_boot_params->totalsize);
+
#ifdef CONFIG_PPC32
/*
* Handle the case where we might be booting from an old kexec
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 2442361772e..98e201c38d2 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1950,11 +1950,7 @@ static void __init flatten_device_tree(void)
/* Version 16 is not backward compatible */
hdr->last_comp_version = 0x10;
- /* Reserve the whole thing and copy the reserve map in, we
- * also bump mem_reserve_cnt to cause further reservations to
- * fail since it's too late.
- */
- reserve_mem(RELOC(dt_header_start), hdr->totalsize);
+ /* Copy the reserve map in */
memcpy(rsvmap, RELOC(mem_reserve_map), sizeof(mem_reserve_map));
#ifdef DEBUG_PROM
@@ -1967,6 +1963,9 @@ static void __init flatten_device_tree(void)
RELOC(mem_reserve_map)[i].size);
}
#endif
+ /* Bump mem_reserve_cnt to cause further reservations to fail
+ * since it's too late.
+ */
RELOC(mem_reserve_cnt) = MEM_RESERVE_MAP_SIZE;
prom_printf("Device tree strings 0x%x -> 0x%x\n",