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| author | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2021-01-12 15:23:40 +0100 |
|---|---|---|
| committer | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2021-01-25 21:49:41 +0100 |
| commit | 6b4233f70a914d932a8156950bf9114ba6a06f6c (patch) | |
| tree | 3e0876c4398a7c2b5cf411a389a8b726f41f4399 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | fcb985a0642ee169c6cf4d2322873f853d50abb2 (diff) | |
ARM: dts: bcm2711: Add reserved memory template to hold firmware configuration
RPi4's co-processor will copy the board's bootloader[1] configuration
into memory for the OS to consume. Specifically, for the bootloader
configuration and upgrade user-space routines to query it through
nvmem's sysfs interface.
Introduce a reserved-memory area template for the co-processor to edit
before booting the system so as for Linux not to overwrite that memory
and to expose it as an nvmem device.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Tim Gover <tim.gover@raspberrypi.com>
Link: https://lore.kernel.org/r/e8ca9365-a1f2-1f9d-377c-13bf97883cce@linaro.org
[1] https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711_bootloader_config.md
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
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