[U-Boot] [PATCH v2 23/23] sunxi: A64: add 32-bit SPL support

[Maxime Ripard]

On Mon, Dec 05, 2016 at 01:52:30AM +0000, Andre Przywara wrote:
> When compiling the SPL for the Allwinner A64 in AArch64 mode, we can't
> use the more compact Thumb2 encoding, which only exists for AArch32
> code. This makes the SPL rather big, up to a point where any code
> additions or even a different compiler may easily exceed the 32KB limit
> that the Allwinner BROM imposes.
> Introduce a separate, mostly generic sun50i-a64 configuration, which
> defines the CPU_V7 symbol and thus will create a 32-bit binary using
> the memory-saving Thumb2 encoding.

"mostly generic". Where do you draw the line? How do you deal with a
board that would use a different UART? a different MMC? different
memory configuration.?

This looks like it's not generic at all, it's just a configuration for
the Pine64.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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