tegra: nyan: Add a README

Add a short note about how to boot U-Boot on Nyan-big using tegrarcm.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Simon Glass 2019-04-01 13:38:42 -07:00 committed by Tom Warren
parent 7a6c6dba28
commit 593216f9cb

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# SPDX-License-Identifier: GPL-2.0+
#
# Copyright 2018 Google LLC
# Written by Simon Glass <sjg@chromium.org>
U-Boot on Nyan
==============
Nyan-big is supported by mainline U-Boot. This device is based on Tegra124.
To build it, use the nyan-big config.
To boot it, connect a USB A-A cable from your computer to the back USB port.
Connect a servo board. Then with t20_rec and warn_rst held down:
sudo tegrarcm --bct cbootimage-configs/tegra124/nvidia/norrin/PM370_Hynix_2GB_H5TC4G63AFR_PBA_924MHz_01212014.bct
--bootloader u-boot-dtb-tegra.bin --loadaddr 0x80108000
The norrin config is close enough that it works well with Nyan.