[U-Boot] [PATCH v3 13/28] mtd: ensure MTD is compiled when ENV_IS_IN_FLASH is selected

[Tom Rini]

On Fri, Dec 07, 2018 at 12:09:33PM +0100, Miquel Raynal wrote:
> Hi Tom, Wolfgang,
[snip]
> So what's our next move? I think Wolfgang had two points:
> * NOR (and everything related to NOR) should not depend on MTD.
> * Same for NAND.
> 
> For NAND this is already too late, NAND code already relies on MTD so
> I am just cleaning Makefiles/Kconfig/defconfigs to avoid the "xxx:
> missing symbol" error. Now, what about NOR? We know that the overhead,
> today, is null, so do you allow me to make NOR depend on MTD or are you
> still opposed to that? I think U-Boot maintenance and future
> changes would be really eased.

Right, so moving forward, I think the plan is:
- For SPL, we acknowledge and continue to allow for one-off drivers that
  don't depend on MTD for NOR/NAND for read-only case.
- For full U-Boot, we continue with the path you're talking about that
  gives us the most long term benefits and where yes, NOR and NAND
  depend on MTD.  We will do this in a way that doesn't grow the binary
  size needlessly but by the same token we aren't going to restrict
  NOR/NAND drivers more harshly than we do the entire rest of the
  project.

-- 
Tom
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