Hey,
I've been tinkering with OneNAND IPL in uboot. I found out it wan't to load itself to the address specified in board/$(BOARDDIR)/config.mk . That's fine in most cases, but in my case that wasn't possible.
In my case, SDRAM init didn't fit into the IPL, so I had to copy U-Boot into SRAM, then execute it and let it relocate itself into SDRAM. One more time: IPL: OneNAND->SRAM U-Boot: SRAM->SDRAM
It all works fine, but when compiling the IPL, I had to alter TEXT_BASE not to point into SDRAM but SRAM too (because of stack). I introduced a variable called IPL which allows using config.mk from (for example) onenand- ipl/board/$(BOARDDIR)/config.mk rather than the board/$(BOARDDIR)/config.mk one, which is in my opinion a correct behaviour.
Any opinions?
Thanks in advance.
diff --git a/config.mk b/config.mk index 73b5195..8639580 100644 --- a/config.mk +++ b/config.mk @@ -130,9 +130,13 @@ BOARDDIR = $(VENDOR)/$(BOARD) else BOARDDIR = $(BOARD) endif +ifdef IPL +sinclude $(TOPDIR)/$(IPL)/board/$(BOARDDIR)/config.mk # include IPL specific rules +else ifdef BOARD sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules endif +endif
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