Dear Stephen Warren,
In message 50CA3E7A.8020407@wwwdotorg.org you wrote:
My intent is that ODMDATA will definitely only be used for the console UART, and will NOT be used for anything else like LCD, RTC, ... Those other devices will certainly be configured via device tree.
We've been there before, you know.
I'm not quite sure what the implication is here.
What I mean is: there have been a number of times before when we decided to do something more or less ugly because it appeared to be the easiest / fastest / most simple approacht at that time,and we were sure we would it need for this one special case only. Then it gor reused, and again, and it spread...
OK - what is the scope of visibility of such code? Will it be strictly board specific only? Or SoC specific? Arch? Global?
It's partially SoC-specific, partially global.
Which exact parts would be global?
I am aware that the capability to set the UART is obviously part of the global code.
But the actual implementation of such setting would be not global at all, right?
Note that by "all" and "global" here, I'm talking relative to all Tegra SoCs, not about anything non-Tegra. "SoC-specific" means different for Tegra20, Tegra30, Tegra114, etc.
OK.
Note that in the latter case, I haven't pushed out the patches which document the UART pinmux fields yet, but will very soon; most likely as soon as we've resolved this conversation.
You guarantee that this all will remain strictly within Tegra specific areas, only? And only for the UART?
Best regards,
Wolfgang Denk