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author | Rob Herring <rob.herring@calxeda.com> | 2013-08-28 09:57:57 -0500 |
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committer | Rob Herring <rob.herring@calxeda.com> | 2013-10-09 11:38:05 -0500 |
commit | 21c561bda17a67afe923866cf88653637abf6e7a (patch) | |
tree | 31366101836a8705b21f28ea10377cc8bceb3b15 /arch/x86/kernel/devicetree.c | |
parent | 3486892f998fea5b4f1a0a4d093f09b7d0024696 (diff) | |
download | linux-stable-21c561bda17a67afe923866cf88653637abf6e7a.tar.gz linux-stable-21c561bda17a67afe923866cf88653637abf6e7a.tar.bz2 linux-stable-21c561bda17a67afe923866cf88653637abf6e7a.zip |
x86: use unflatten_and_copy_device_tree
Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Diffstat (limited to 'arch/x86/kernel/devicetree.c')
-rw-r--r-- | arch/x86/kernel/devicetree.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 376dc7873447..0db805c4b9e8 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -230,7 +230,7 @@ static void __init dtb_apic_setup(void) static void __init x86_flattree_get_config(void) { u32 size, map_len; - void *new_dtb; + struct boot_param_header *dt; if (!initial_dtb) return; @@ -238,24 +238,17 @@ static void __init x86_flattree_get_config(void) map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)sizeof(struct boot_param_header)); - initial_boot_params = early_memremap(initial_dtb, map_len); - size = be32_to_cpu(initial_boot_params->totalsize); + dt = early_memremap(initial_dtb, map_len); + size = be32_to_cpu(dt->totalsize); if (map_len < size) { - early_iounmap(initial_boot_params, map_len); - initial_boot_params = early_memremap(initial_dtb, size); + early_iounmap(dt, map_len); + dt = early_memremap(initial_dtb, size); map_len = size; } - new_dtb = alloc_bootmem(size); - memcpy(new_dtb, initial_boot_params, size); - early_iounmap(initial_boot_params, map_len); - - initial_boot_params = new_dtb; - - /* root level address cells */ - of_scan_flat_dt(early_init_dt_scan_root, NULL); - - unflatten_device_tree(); + initial_boot_params = dt; + unflatten_and_copy_device_tree(); + early_iounmap(dt, map_len); } #else static inline void x86_flattree_get_config(void) { } |