[U-Boot] [PATCH v2 7/7] tegra: nyan: Add a README

[Simon Glass]

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

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2: None

 board/nvidia/nyan-big/README | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 board/nvidia/nyan-big/README

diff --git a/board/nvidia/nyan-big/README b/board/nvidia/nyan-big/README
new file mode 100644
index 00000000000..0e53d8d92fe
--- /dev/null
+++ b/board/nvidia/nyan-big/README
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright 2018 Google LLC
+# Written by Simon Glass <sjg at 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.
-- 
2.21.0.392.gf8f6787159e-goog