Subject: [PATCH v2 2/2] arm: add early_ioremap support

From: [email-masked] (Catalin Marinas)
Date: Fri, 6 Sep 2013 17:14:49 +0100

On Fri, Sep 06, 2013 at 10:19:18AM +0100, Leif Lindholm wrote:
> --- a/arch/arm/kernel/setup.c
> +++ b/arch/arm/kernel/setup.c
> @@ -877,6 +878,10 @@ void __init setup_arch(char **cmdline_p)
> 
>         parse_early_param();
> 
> +#ifdef CONFIG_EARLY_IOREMAP
> +       early_ioremap_init();
> +#endif

Better with a dummy early_ioremap_init() in the header when
!CONFIG_EARLY_IOREMAP to avoid the #ifdef here.

> --- /dev/null
> +++ b/arch/arm/mm/early_ioremap.c
> @@ -0,0 +1,271 @@
> +/*
> + * early_ioremap() support for ARM
> + *
> + * Based on existing support in arch/x86/mm/ioremap.c

At a very quick look, this looks really close to the x86 implementation.
Any reason why this cannot be made generic and avoid duplication?

-- 
Catalin