On Wednesday 20 May 2015 00:06:22 Stefan Agner wrote:
> Add defconfig for Linux on Vybrid (vf610) on the secondary Cortex-
> M4 CPU. The use of a XIP image has been tested which needs to be
> loaded (e.g. using the custom m4boot loader) to the end of the
> available RAM at address 0x8f000000. The Cortex-M4 has a code-alias
> which makes sure that the instructions get fetched through the code
> bus (alias starts at 0x00800000 => 0x80800000 in system address).
> Hence, to get optimal performance, use 0x0f000000 as XIP_PHYS_ADDR.
> This address is additionally shifted by the length of the minimal
> loader which is inserted by m4boot. Currently, this offset is 0x80.
>
> The standard DRAM base address is configured to 0x8C000000, which
> gives the Cortex-M4 48MiB of RAM.
>
> Signed-off-by: Stefan Agner <ste...@agner.ch>
>
Applied to next/defconfig, thanks!
Arnd
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