Re: [RFC PATCH 0/9] arm64: dts: meson: add support for aac2xx devices

[Kevin Hilman]

Christian Hewitt <christianshewitt@xxxxxxxxx> writes:

> This series adds support for several popular Amlogic S905X3 (SM1) Android
> Set-Top Box devices. Like most Android box devices, they ship in variants
> with multiple RAM, eMMC, WiFi and BT configurations. RAM and eMMC are not
> something we need to consider to get a working boot, but we do need to get
> the correct connectivity spec.

The reason we don't need to care about RAM differences is because u-boot
takes care of that, and updates the DT nodes accordingly.

In general, I'm not a fan of leaving these decisions up to u-boot,
but...  as an option...

I'm pondering if we should do the same for the connectivity settings?  A
properly configured u-boot already knows if it's an internal/external
PHY, Mbit vs Gbit etc. so in a similar way could enable/disable the
right nodes.

We could have a single DTS for each of these board families which
has some reasonable defaults, then u-boot would enable/disable nodes
accordingly.

Kevin