Thread (9 messages) flat view 9 messages, 3 authors, 2021-01-25

Re: [PATCH v3 0/5] Expose RPi4's bootloader configuration

From: Nicolas Saenz Julienne <hidden>
Date: 2021-01-25 21:10:55
Also in: linux-arm-kernel, lkml

On Tue, 2021-01-12 at 15:23 +0100, Nicolas Saenz Julienne wrote:
Soon to be released versions of RPi4's firmware will take of care
passing their bootloader's configuration[1] to the OS by copying it into
memory and creating a reserved memory node in the board's DT. By
modeling this reserved memory node as an nvmem device using
'nvmem-rmem', which this series introduces, user-space applications will
be able to query this information through nvmem's sysfs interface.

An alternative approach, less nice IMO, would be to create a
platform-specific 'soc' driver.

Regards,
Nicolas

[1] https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711_bootloader_config.md
Applied patches #3 to #5 for next.

Regards,
Nicolas

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