[U-Boot] Where should Renesas RZ/A go under arch/arm/ ????

[Chris Brandt]

Hello,

Since I've been supporting a u-boot for the Renesas RZ/A1 SoC for a 
while now, I thought I'd start upstreaming the drivers/patches I've acquired
over the years.

But, where should the core files and Kconfig go?

The RZ/A1 series has a Cortex-A9.

At first, I had made a directory under arch/arm/cpu/armv7/

But, now I see things are moving under arch/arm/mach-xxxx.

There is a arch/arm/mach-rmobile directory that has the Renesas R-Car 
devices. But while the RZ/A1 uses some of the same HW IP blocks, for the 
most part it's a different product line.

So, Where should I put my RZ/A1 (and future RZ/A devices, or future RZ/N
devices)?

1. Keep all Renesas parts together like we do in the kernel (arm/mach-shmobile)?

   u-boot/arch/arm/mach-rmobile

2. Create a new directory just for the RZ/A series?

   u-boot/arch/arm/mach-rza

3. Create a new directory just for any Renesas parts that are not rmobile?

   u-boot/arch/arm/mach-renesas


The one issue with #2 and #3 is that currently arch/arm/Kconfig has

config ARCH_RMOBILE
	bool "Renesas ARM SoCs"

Which basically tells users that any Renesas SoC would be under mach-rmobile.


So, if I at least know what directory I should start with, I can figure 
out how to make the rest work.


Thank you,
Chris