[U-Boot] [PATCH] arm: mxs: Increase VDDD voltage to match specification

sbabic at denx.de sbabic at denx.de
Mon Nov 4 08:55:00 UTC 2019

> According to IMX28CEC rev. 4, 10/2018, Table 15. Recommended Operating
> Conditions, page 16, the VDDD should be set to 1.55V when the CPU is
> operating at 454MHz. This is the case in U-Boot, hence increase the
> VDDD voltage. This fixes instability when performing TFTP transfers.
> Increase the brownout threshold to 1.4V. The documentation recommends
> 1.45V setting for the brownout, however, this triggers failure during
> power block init, so keep the brownout slightly lower.
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Stefano Babic <sbabic at denx.de>
> Reviewed-by: Fabio Estevam <festevam at gmail.com>

Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de

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