[PATCH 2/9] ARM: mmp: distinguish mmp and mmp2 in Kconfig

On Sat, Apr 28, 2012 at 4:14 AM, Arnd Bergmann [off-list ref] wrote:

On Friday 27 April 2012, Haojian Zhuang wrote:

quoted

Append four CONFIG_* MACRO to distinguish boards in arch-mmp.

CONFIG_MMP_LEGACY and CONFIG_MMP2_LEGACY are used to support boards
without device tree.

CONFIG_MMP_DT and CONFIG_MMP2_DT are used to support boards with
device tree.

At the same time, only one of these four macro could be selected.
It's used to miss compiling all boards file together.

Can you explain why this is done? It seems counterintuitive to
have the DT and non-DT support be mutually exclusive.

If I selected DT support, I needn't select those machine support one
by one. I want to use
mmp-dt to support all PXA168/PXA910 boards, and use mmp2-dt to support
all mmp2 boards.
So I use exclusive statements in Kconfig for convenience.

Thanks
Haojian