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From: Peng Fan <peng.fan@oss.nxp.com>
To: Tom Rini <trini@konsulko.com>
Cc: u-boot@lists.denx.de,
	Manoj Sai <abbaraju.manojsai@amarulasolutions.com>,
	Matteo Lisi <matteo.lisi@engicam.com>,
	Teresa Remmet <t.remmet@phytec.de>, Peng Fan <peng.fan@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	Marco Franchi <marcofrk@gmail.com>,
	Alifer Moraes <alifer.wsdm@gmail.com>,
	"Lukas F. Hartmann" <lukas@mntre.com>,
	Patrick Wildt <patrick@blueri.se>,
	Heiko Thiery <heiko.thiery@gmail.com>,
	Marek Vasut <marex@denx.de>,
	Francesco Dolcini <francesco.dolcini@toradex.com>,
	upstream@lists.phytec.de
Subject: Re: U-Boot and legacy SPL power control on modern platforms
Date: Wed, 25 Mar 2026 19:18:56 +0800	[thread overview]
Message-ID: <acPEoC0W8DJMnYfd@shlinux89> (raw)
In-Reply-To: <20260320214518.GD502704@bill-the-cat>

Hi Tom,

On Fri, Mar 20, 2026 at 03:45:18PM -0600, Tom Rini wrote:
>Hello,
>
>As part of the work I've been doing on clarifying Kconfig dependencies
>I've stumbled on to a number of modern boards[1] that are using the
>SPL_POWER_LEGACY symbol. Can the maintainers please update these to use
>DM_PMIC, DM_REGULATOR (and SPL variants) as needed so that they use the
>modern architecture, or let me know what's missing here? Thanks!

For i.MX8MQ, I think we may need to leave with SPL_POWER_LEGACY,
the board has 256KB TCM, but u-boot-spl-ddr.bin is almost using all
of them if enabling SPL_DM, other SPL_OF_CONTROL and other DM drivers.

u-boot-spl.bin itself is 90KB+, but ddr firmware and hdmi.bin are packed
in u-boot-spl-ddr.bin, the image is a bit large.

Regards
Peng

>
>-- 
>Tom
>
>[1]: imx8mp-icore-mx8mp-edimm2.2 imx8mp-libra-fpsc imx8mq_evk
>     imx8mq_phanbell imx8mq_reform2 kontron_pitx_imx8m phycore-imx8mp
>     pico-imx8mq verdin-imx8mp



  parent reply	other threads:[~2026-03-25 11:16 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-20 21:45 U-Boot and legacy SPL power control on modern platforms Tom Rini
2026-03-22 12:26 ` Peng Fan (OSS)
2026-03-24  9:18   ` Francesco Dolcini
2026-03-25 11:18 ` Peng Fan [this message]
2026-03-25 16:52   ` Tom Rini
2026-03-25 17:56     ` Simon Glass
2026-03-26  7:44       ` Peng Fan

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