unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
1
Fork 0
Code Pull requests 5 Wiki Activity

mips: lantiq: copy built-in DTB out of init section

Browse source 
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@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Tested-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Rob Herring 2014-04-02 17:50:19 -05:00
parent 8c97cec990
commit 10fbdaab3f
1 changed files with 1 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
arch/mips/lantiq/prom.c
View file

@ -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)