[U-Boot] [PATCH v1 0/2] android: colibri_imx7: reserve DDR memory for Cortex-M4

[Igor Opaniuk]

On Fri, Jul 12, 2019 at 1:50 PM Igor Opaniuk <igor.opaniuk at gmail.com> wrote:
>
> i.MX 7's Cortex-M4 core can run from DDR and uses DDR memory for
> the rpmsg communication. Both use cases need a fixed location of
> memory reserved. For the rpmsg use case the reserved area needs
> to be in sync with the kernel's hardcoded vring descriptor location.
>
> Introduce support for adding linux,usable-memory property to carve
> out 1MB of memory in case the M4 core is running. Also make sure
> that the i.MX 7 specific rpmsg driver does not get loaded in case
> we do not carve out memory.
>
> Igor Opaniuk (2):
>   common: fdt_support: add support for setting usable memory
>   board: colibri_imx7: reserve DDR memory for Cortex-M4
>
>  arch/arm/include/asm/mach-imx/sys_proto.h |  2 ++
>  board/toradex/colibri_imx7/colibri_imx7.c | 37 +++++++++++++++++++++++
>  common/fdt_support.c                      | 35 +++++++++++++++++++++
>  include/fdt_support.h                     |  2 ++
>  4 files changed, 76 insertions(+)
>
> --
> 2.17.1
>

Please, don't pay attention to "android" keyword in the title
(actually nothing related to android), it's just a glitch.
--
Best regards - Freundliche Grüsse - Meilleures salutations

Igor Opaniuk

mailto: igor.opaniuk at gmail.com
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