[PATCH 02/20] mips: lantiq: copy built-in DTB out of init section

From: Rob Herring
Date: Thu Apr 03 2014 - 18:24:26 EST


From: Rob Herring <robh@xxxxxxxxxx>

The existing code is buggy because built-in DTBs are in init memory.
Fix this by using the unflatten_and_copy_device_tree function.

This removes all accesses to FDT header data by the arch code.

Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
---
arch/mips/lantiq/prom.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 19686c5..cdea687 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -76,18 +76,7 @@ void __init plat_mem_setup(void)

void __init device_tree_init(void)
{
- unsigned long base, size;
-
- if (!initial_boot_params)
- return;
-
- base = virt_to_phys((void *)initial_boot_params);
- size = be32_to_cpu(initial_boot_params->totalsize);
-
- /* Before we do anything, lets reserve the dt blob */
- reserve_bootmem(base, size, BOOTMEM_DEFAULT);
-
- unflatten_device_tree();
+ unflatten_and_copy_device_tree();
}

void __init prom_init(void)
--
1.8.3.2

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