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From: Sam Ravnborg <sam@ravnborg.org>
To: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Barebox List <barebox@lists.infradead.org>,
	Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: Q about bootstrap support for at91sam92* boards and proposal for retirement
Date: Mon, 10 Jan 2022 21:52:58 +0100	[thread overview]
Message-ID: <YdycqscPLMvmGZOH@ravnborg.org> (raw)
In-Reply-To: <20220110053336.GA3326@pengutronix.de>

Hi Oleksij,
> 
> By porting sama5d3 I noticed that bootROM is resetting configuration for
> at least some of ip cores. So, the main question is, do everything needed
> for uart is still pre-configured? For example pllc and clk settings?

I found this in the data sheet that agrees with you:

"
	Before performing the jump to the application in internal SRAM,
	all the PIOs and peripherals used in the boot
	program are set to their reset state.
"

I will throw some hours after this in the weekend to see if I can get
it up and running.

> 
> As soon as UART is working, every thing else will be not really hard to
> do :)
Agree, except that I need find a nice way to add whatever I do to the
current at91 stuff. But that is part of the fun.

	Sam

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  reply	other threads:[~2022-01-10 20:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-09 18:38 Sam Ravnborg
2022-01-09 19:53 ` Sam Ravnborg
2022-01-10  5:33   ` Oleksij Rempel
2022-01-10 20:52     ` Sam Ravnborg [this message]
2022-01-11  8:08   ` Ahmad Fatoum
2022-01-11  7:57 ` Ahmad Fatoum
2022-01-11 22:12   ` Sam Ravnborg

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