[PATCH] I2C: i.MX: early: Use internal udelay

John Watts contact at jookia.org
Mon Jan 30 04:56:20 PST 2023


On Mon, Jan 30, 2023 at 01:31:42PM +0100, Sascha Hauer wrote:
> As said, the code is also for other i.MX SoCs, so a fixed base address
> won't do it. You would first have to detect the SoC type, but we can
> only get this from the device tree.
> 
> I'm afraid there is no good solution for this problem, at least we
> haven't found any over the years.
> 
> Sascha

Oh right, because Barebox does multi-image builds. That is an unsatisfying
problem but it makes sense.

So for this patch I imagine I should just take the udelay you've written,
use the I2C registers as the base address and just poke around for a while?

I'm still unsure on how to test this- can I just disable the MMU and dcache
in board.c and do some prints with some type of timer?

John.



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