[v2] arm: mx6: Make all i.MX6 SoCs user-selectable

["Marcin Niestrój" <m.niestroj@grinn-global.com>]

Tom Rini <trini@konsulko.com> writes:

> We have a number of platforms that are a combination of a carrier board
> and System-on-Module (SoM) that in turn allows for the board to have
> different SoCs on it.  In some cases, this is handled via board-specific
> Kconfig options.  In other cases we make use of
> CONFIG_SYS_EXTRA_OPTIONS.  This latter case however can lead to invalid
> configurations as we will not in turn get options that in Kconfig are
> selected by or depend on that setting.
>
> To resolve this, make the SoC option a choice in Kconfig and make boards
> depend on what they can support.  This change opens us up for further
> clean-ups in the cases where a single CONFIG_TARGET_xxx can support
> different SoCs and today they do not, or do not cleanly do so.
>
> Reported-by: Matt Porter <mporter@konsulko.com>
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Fabio Estevam <festevam@gmail.com>
> Cc: "NXP i.MX U-Boot Team" <uboot-imx@nxp.com>
> Cc: Soeren Moch <smoch@web.de>
> Cc: Markus Niebel <Markus.Niebel@tq-group.com>
> Cc: Igor Opaniuk <igor.opaniuk@toradex.com>
> Cc: Heiko Schocher <hs@denx.de>
> Cc: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
> Cc: Otavio Salvador <otavio@ossystems.com.br>
> Cc: Nikita Kiryanov <nikita@compulab.co.il>
> Cc: Andreas Geisreiter <ageisreiter@dh-electronics.de>
> Cc: Ludwig Zenz <lzenz@dh-electronics.de>
> Cc: Lukasz Majewski <lukma@denx.de>
> Cc: Akshay Bhat <akshaybhat@timesys.com>
> Cc: Ken Lin <Ken.Lin@advantech.com.tw>
> Cc: Ian Ray <ian.ray@ge.com>
> Cc: Tim Harvey <tharvey@gateworks.com>
> Cc: Jagan Teki <jagan@amarulasolutions.com>
> Cc: Raffaele RECALCATI <raffaele.recalcati@bticino.it>
> Cc: Simone CIANNI <simone.cianni@bticino.it>
> Cc: Adam Ford <aford173@gmail.com>
> Cc: Marcin Niestroj <m.niestroj@grinn-global.com>
> Cc: "Eric B?nard" <eric@eukrea.com>
> Cc: Baruch Siach <baruch@tkos.co.il>
> Cc: Jason Liu <jason.hui.liu@nxp.com>
> Cc: Ye Li <ye.li@nxp.com>
> Cc: Eric Nelson <eric@nelint.com>
> Cc: Troy Kisky <troy.kisky@boundarydevices.com>
> Cc: Peng Fan <peng.fan@nxp.com>
> Cc: Parthiban Nallathambi <parthiban@linumiz.com>
> Cc: Marek Vasut <marex@denx.de>
> Cc: "S?bastien Szymanski" <sebastien.szymanski@armadeus.com>
> Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
> Cc: Niel Fourie <lusus@denx.de>
> Cc: Martyn Welch <martyn.welch@collabora.com>
> Cc: Richard Hu <richard.hu@technexion.com>
> Cc: Stefan Roese <sr@denx.de>
> Cc: Boris Brezillon <bbrezillon@kernel.org>
> Cc: Arkadiusz Karas <arkadiusz.karas@somlabs.com>
> Cc: Breno Lima <breno.lima@nxp.com>
> Cc: Francesco Montefoschi <francesco.montefoschi@udoo.org>
> Cc: Silvio Fricke <open-source@softing.de>
> Tested-by: Matt Porter <mporter@konsulko.com> [colibri_imx6]
> Signed-off-by: Tom Rini <trini@konsulko.com>
> ---
> Changes in v2:
> - Fix LITESOM / OPOS6UL as noted by Peng Fan / Stefano Babic
> ---

Reviewed-by: Marcin Niestroj <m.niestroj@grinn-global.com>