On Thu, Mar 20, 2014 at 02:17:07PM +0100, Daniel Schwierzeck wrote: > 2014-03-20 1:11 GMT+01:00 Masahiro Yamada <yamad...@jp.panasonic.com>: > > > > Basicly I think it's a good idea, but I am afraid there are some > > problems. > > > > [1] > > First, in this case, how can we select the target board? > > > > Like this? > > > > choice > > prompt "Board select" > > default BOARD_SANDBOX > > > > config BOARD_VEXPRESS_AEMV8A > > bool "vexpress_aemv8a board" > > > > config BOARD_ARCANGEL4 > > bool "arcangel4 board" > > > > [ Snip: a thousand of boards ] > > > > endchoice > > > > If we run "make config", a bunch of board choices > > would be displayed and be gone away quickly. > > For "make menuconfig", it would be hard to select the board > > you are aiming at. > > > > > > Maybe we should choose it in the top-down order? > > Like this? > > I think only the top-down approach makes sense > > > > > [2] > > CONFIG_CPU_ > > CONFIG_SOC_ > > CONFIG_VENDOR_ > > CONFIG_BOARD_ > > are systematic prefixes and easy to understand. > > > > But there are already some macros bound to > > specific CPUs, SoCs. > > > > For example, > > CONFIG_SOC_TEGRA30 would be the same as > > existing CONFIG_TEGRA30. > > > > We will have to merge macros with the same meaning. > > in the first step we could do something like this: > > config TEGRA30 > bool > > config SOC_TEGRA30 > bool > select TEGRA30 > > > > > [3] > > How to select board directoy by using boolean macros. > > > > If we try to emulate arch/arm/Makefile of Linux, > > > > board-$(CONFIG_BOARD_VEXPRESS_AEMV8A) := vexpress_aemv8a > > board-$(CONFIG_BOARD_AXS101) := axs101 > > board-$(CONFIG_BOARD_ARCANGEL4) := arcangel4 > > > > Like this? > > > > how about this: > > Makefile: > ... > lib-y += boards/ > ... > > board/Makefile: > obj-$(CONFIG_BOARD_A3000) += a3000/ > ... > obj-$(CONFIG_VENDOR_NVIDIA) += nvidia/ > ... > > board/nvidia/Makefile: > obj-y += common/ > obj-$(CONFIG_BOARD_BEAVER) += beaver/ > obj-$(CONFIG_BOARD_CARDHU) += cardhu/ > ...
Yes, would something like this be doable? Thanks! -- Tom
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