Re: [PATCH 04/14] MIPS: Add helper function to allow platforms to point at a DTB.

[David Daney <ddaney.cavm@gmail.com>]

On 04/30/2012 04:32 AM, John Crispin wrote:
> Add __dt_setup_arch() that can be called to load a builtin DT.
> Additionally we add a macro to allow loading a specific symbol
> from the __dtb_* section.
>
> Signed-off-by: Ralf Baechle<ralf@linux-mips.org>
> Signed-off-by: John Crispin<blogic@openwrt.org>
> ---
>   arch/mips/include/asm/prom.h |   11 +++++++++++
>   arch/mips/kernel/prom.c      |   14 ++++++++++++++
>   2 files changed, 25 insertions(+), 0 deletions(-)
[...]
> +
> +void __init __dt_setup_arch(struct boot_param_header *bph)
> +{
> +       unsigned long size;
> +
> +       if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
> +               pr_err("DTB has bad magic, ignoring builtin OF DTB\n");
> +
> +               return;
> +       }
> +
> +       initial_boot_params = bph;
> +       size = be32_to_cpu(bph->totalsize);
size is unused, you can remove it.

> +}