board: riscv: add openpiton-riscv64 SoC support
This patch adds openpiton-riscv64 SOC support. In particular, this
board supports a standard bootflow through zsbl->u-boot SPL->
opensbi->u-boot proper->Linux. There are separate defconfigs for
building u-boot SPL and u-boot proper
Signed-off-by: Tianrui Wei <tianrui-wei@outlook.com>
Signed-off-by: Jonathan Balkind <jbalkind@ucsb.edu>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff --git a/doc/board/openpiton/index.rst b/doc/board/openpiton/index.rst
new file mode 100644
index 0000000..c469102
--- /dev/null
+++ b/doc/board/openpiton/index.rst
@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+OpenPiton
+=========
+
+.. toctree::
+ :maxdepth: 2
+
+ riscv64