HI Masahiro, In my fiddling with Rockchip in SPL I found that the current single config is simple, but a little too limited. You discussed this briefly with someone from Marvell also. At present we effectively have two options:
1. decide for all boards that a uclass should be supported in SPL (and put it in Makefile.spl, or not) 2. ugly #undefs to try to fix things up after the fact (i.e. #ifdef CONFIG_SPL_BUILD...#undef CONFIG_PINCTRL) You mentioned the idea of allowing something like this: spl-$(CONFIG_FRED) += file.o In practice I assume you would generate two config headers from the same input: one for SPL and one for U-Boot proper. Another option would be to allow several states for the same config. At present in the .config files we have: CONFIG_FRED=y We could allow: CONFIG_FRED=yyn meaning yes for U-Boot proper, yes for SPL, no for TPL (assuming these are enabled for the board). For this we would need a new type, similar to tristate which allows cycling through the options. In the Makefile we could have obj-$(CONFIG_FRED) += file.o and then Kbuild would do the right thing - i.e. include the file for U-Boot proper, SPL but not TPL. What do you think about this? I fear that we need to figure something out... Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
