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From: "Tomaž Šolc" <tomaz.solc@klevio.com>
To: barebox@lists.infradead.org
Subject: Re: Raspberry Pi Barebox State Integration - SD card
Date: Tue, 4 Jun 2019 09:52:42 +0200	[thread overview]
Message-ID: <60b22776-2a60-abfa-8f06-82455bdebe0d@klevio.com> (raw)
In-Reply-To: <CAPYMOwmwmX3G0cHp6DSmw+GxRmENThtABnQdSS-2cL=kgfYYPg@mail.gmail.com>

Hi

On 4. 06. 19 08:32, Valentina Rusu wrote:
> * other boards have EEPROM, NAND besides SD card and they are 
> described in the device tree; RPi has no such thing;

> * somehow I need to write the state on the SD card in a location
> where does not interfere with the partitions created (boot, rootfs,
> user partitions, etc);

Barebox on Raspberry Pi automatically saves nv variables to the
"barebox.env" file in the first partition - see rpi_env_init() in 
rpi-common.c. This is usually the /boot partition with FAT that also has 
the VideoCore firmware files, etc.

I have a working bootchooser setup for a board based on R.Pi CM3 using 
this functionality. No special setup was required in barebox regard to 
saving the bootchooser state.

I'm not familiar with meta-barebox and RAUC though.

Best regards
Tomaž

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  reply	other threads:[~2019-06-04  7:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-04  6:32 Valentina Rusu
2019-06-04  7:52 ` Tomaž Šolc [this message]
2019-06-04  8:59 ` Moritz Augsburger
     [not found] <mailman.44637.1559659159.2376.barebox@lists.infradead.org>
2019-06-05  4:26 ` Valentina Rusu
2019-06-05  6:46   ` Moritz Augsburger

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