Re: [PATCH v4 1/1] printk: fix zero-valued printk timestamps in early boot

Geert Uytterhoeven <[email protected]> Tue, 28 Apr 2026 15:27:27 +0200
Newsgroups org.kernel.vger.linux-embedded,org.kernel.vger.linux-kernel
Message-ID <CAMuHMdWCyNO6p9C20hfDkezA2wm3yU8xaxaNOZ2JiXtGL71MmQ@mail.gmail.com>
Hi Andrew,

On Tue, 28 Apr 2026 at 13:17, Andrew Murray
<[email protected]> wrote:
> I've tested this on my PocketBeagle2...

> That shows nearly a second of boot time prior to timestamps. In this
> case it's due to a slow console as it's using earlycon
> ("earlycon=ns16550a,mmio32,0x02860000"), without that I get:

"earlycon" (no parameters) should be sufficient, once you have
added the missing serial console speed to chosen/stdout-path in
arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts.

BeaglePlay already has it:
https://elixir.bootlin.com/linux/v7.0.1/source/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts#L44

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds