linux-kernel - Re: [PATCH 3/4] MIPS: BMIPS: Remove special handling of CONFIG_MIPS_ELF_APPENDED

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Date:   Tue, 25 Sep 2018 19:52:56 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Yasha Cherikovsky <yasha.che3@...il.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>, linux-mips@...ux-mips.org
Cc:     Kevin Cernekee <cernekee@...il.com>, linux-kernel@...r.kernel.org,
        Jonas Gorski <jonas.gorski@...il.com>
Subject: Re: [PATCH 3/4] MIPS: BMIPS: Remove special handling of
 CONFIG_MIPS_ELF_APPENDED_DTB=y



On 9/25/2018 11:08 AM, Yasha Cherikovsky wrote:
> The ELF appended dtb can be accessed now via 'fw_passed_dtb'.
> 
> Signed-off-by: Yasha Cherikovsky <yasha.che3@...il.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>

> Cc: Kevin Cernekee <cernekee@...il.com>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: Ralf Baechle <ralf@...ux-mips.org>
> Cc: Paul Burton <paul.burton@...s.com>
> Cc: James Hogan <jhogan@...nel.org>
> Cc: linux-mips@...ux-mips.org
> Cc: linux-kernel@...r.kernel.org
> ---
>   arch/mips/bmips/setup.c | 9 +--------
>   1 file changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
> index 3b6f687f177c..b71b6eaaf7ed 100644
> --- a/arch/mips/bmips/setup.c
> +++ b/arch/mips/bmips/setup.c
> @@ -153,8 +153,6 @@ void __init plat_time_init(void)
>   	mips_hpt_frequency = freq;
>   }
>   
> -extern const char __appended_dtb;
> -
>   void __init plat_mem_setup(void)
>   {
>   	void *dtb;
> @@ -164,15 +162,10 @@ void __init plat_mem_setup(void)
>   	ioport_resource.start = 0;
>   	ioport_resource.end = ~0;
>   
> -#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
> -	if (!fdt_check_header(&__appended_dtb))
> -		dtb = (void *)&__appended_dtb;
> -	else
> -#endif
>   	/* intended to somewhat resemble ARM; see Documentation/arm/Booting */
>   	if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
>   		dtb = phys_to_virt(fw_arg2);
> -	else if (fw_passed_dtb) /* UHI interface */
> +	else if (fw_passed_dtb) /* UHI interface or appended dtb */
>   		dtb = (void *)fw_passed_dtb;
>   	else if (__dtb_start != __dtb_end)
>   		dtb = (void *)__dtb_start;
> 

-- 
Florian