[PATCH v2 01/12] fix: arm64: dts: replace wrong regulator on ap emmc
Russell King - ARM Linux admin
linux at armlinux.org.uk
Thu Feb 11 05:52:22 EST 2021
On Wed, Feb 10, 2021 at 04:09:38PM +0200, kostap at marvell.com wrote:
> From: Konstantin Porotchkin <kostap at marvell.com>
>
> Replace wrong regulator in AP0 eMMC definition on MacchiatoBIN
> board with 3.3V regulator.
> The MacchiatoBIN board has no 1.8V regulator connected to AP0
> eMMC (ap0_sdhci0) interface.
There seems to be some variability between Macchiatobin versions
according to the schematics.
The VDDO_H supply is connected to the eMMC VCCQ pins, and is also
connected to the AP_VDDO_H pins. It is wired to the 1.8V regulator
on rev 1.1 schematics, but hard-wired to the 3.3V regulator on
rev 1.3 schematics.
This needs clarification from SolidRun before the patch can be
accepted - was VDDO_H ever wired to the 1.8V regulator on production
hardware?
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