[U-Boot] [PATCH] mx23: Put back RAM voltage level to its original value

[Marek Vasut]

Dear Fabio Estevam,

> From: Fabio Estevam <fabio.estevam at freescale.com>
> 
> commit 5c2f444c9 (mxs: Reset the EMI block on mx23) changed the DDR voltage
> level, which causes mx23evk to fail to load a kernel.
> 
> Put back the original values, so that mx23evk can boot a kernel again.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>

So, here are the results from M28EVK and MX23EVK:

http://twilight.ponies.cz/MX23.tar.xz
http://twilight.ponies.cz/MX28.tar.xz

What you can see (rather what's wrong on MX23):
- VDDA should be 1V5, but jumps over 2V and stabilizes at 1V7
- VDDIO has some weird ripple where it goes to 3V5
- VDDMEM is FUBAR

Best regards,
Marek Vasut