[PATCH 6/9] arm: Clarify memory layout calculation

[Sascha Hauer]

On Wed, Dec 02, 2015 at 02:48:48PM +0100, Markus Pargmann wrote:
> The memory calculations used are all hardcoded into three different
> files, start-pbl.c, uncompress.c and start.c. To make this more readable
> and reliable, this patch gathers these information in barebox-arm.h with
> static inline functions for the calculation of the memory offsets.
> 
> This patch also adds proper handling of different barebox/board data
> sizes. Currently only 1MB+Alignment of RAM is reserved for Barebox and
> board data. This could be too small for bigger devicetrees and barebox.
> 
> Signed-off-by: Markus Pargmann <mpa at pengutronix.de>
> ---

> +
> +static inline unsigned long arm_mem_barebox_image(unsigned long membase,
> +						  unsigned long endmem,
> +						  unsigned long size)
> +{
> +	endmem = arm_mem_ttb(membase, endmem);
> +
> +#ifdef CONFIG_RELOCATABLE
> +	endmem -= size;
>  	endmem &= ~(SZ_1M - 1);
> +#endif

if (IS_ENABLED(CONFIG_RELOCATABLE)) please

Otherwise this is a nice cleanup.

Sascha

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