[PATCH] ARM: dts: aspeed: anacapa: Add eeprom device node

[Andrew Jeffery]

On Fri, 2026-03-06 at 14:06 +0800, Colin Huang wrote:
> Hi Andrew,
> 
> Thanks for the feedback.
> 
> In our case the only functional difference between DCSCM rev B/C and
> rev D is the EEPROM I²C address change (0x50 → 0x51).
> Other than this, the hardware is identical and all device-tree
> described components share the same wiring and behaviour.
> 
> Maintaining two separate devicetrees for a single‑byte address shift
> doesn’t scale well for us. 

I disagree that there's a problem of scale. The kernel's dts files are
processed with the C pre-processor - you can #include one file from
another. .dtsi files work this way, and as a related example, we
maintain two devicetrees for the AST2600 EVB where -A1 had some minor
differences in the regulator configuration:

 * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb.dts?h=v7.0-rc5
 * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/aspeed/aspeed-ast2600-evb-a1.dts?h=v7.0-rc5

See also my response to Kevin Tung earlier:

https://lore.kernel.org/all/d7794f74b26bbc1ee0a70e39c5671acc018f80eb.camel@codeconstruct.com.au/

Andrew