[U-Boot] [PATCH V2 4/6] ARM: Tegra210: Add support to common Tegra source/config files

[Stephen Warren <swarren@wwwdotorg.org>]

On 07/20/2015 01:50 PM, Tom Warren wrote:
> Derived from Tegra124, modified as appropriate during T210
> board bringup. Cleaned up debug statements to conserve
> string space, too.

> diff --git a/include/fdtdec.h b/include/fdtdec.h

> +	COMPAT_NVIDIA_TEGRA210_SDMMC,	/* Tegra210 SDMMC controller */

> +	COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,

The DT files added in the next patch contain only the Tegra124 
compatible values, implying that the Tegra210 HW modules are 
backwards-compatible with the Tegra124 HW modules. If this is actually 
true, we don't need to update the U-Boot drivers to match against the 
Tegra210 compatible values; they can continue to match against the 
Tegra124 compatible values.

That said, our downstream DT files contain only Tegra210 compatible 
values for these modules, so I suspect the bug is that the DT patch 
needs fixing to contain the correct compatible values. This might apply 
to more HW modules too, so you might actually need to add more entries 
into this table rather than fewer...