[PATCH v2 06/11] doc: board: renesas: Document Renesas R-Car Gen3 E3 Ebisu board

[Marek Vasut]

Add document which clarifies how to build and install U-Boot on
Renesas R-Car Gen3 E3 Ebisu board.

Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: Heinrich Schuchardt <xypron.glpk at gmx.de>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Tom Rini <trini at konsulko.com>
Cc: u-boot at lists.denx.de
---
V2: No change
---
 doc/board/renesas/index.rst           |  1 +
 doc/board/renesas/rcar-gen3-ebisu.rst | 47 +++++++++++++++++++++++++++
 doc/board/renesas/renesas.rst         |  2 +-
 3 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 doc/board/renesas/rcar-gen3-ebisu.rst

diff --git a/doc/board/renesas/index.rst b/doc/board/renesas/index.rst
index a75c9f08a4c..21216912463 100644
--- a/doc/board/renesas/index.rst
+++ b/doc/board/renesas/index.rst
@@ -13,6 +13,7 @@ Renesas
    rcar-gen3-salvator-x
    rcar-gen3-ulcb
    rcar-gen3-geist
+   rcar-gen3-ebisu
    rcar-gen3-install
    rcar-gen3-install-hf
    rcar-gen3-install-sf
diff --git a/doc/board/renesas/rcar-gen3-ebisu.rst b/doc/board/renesas/rcar-gen3-ebisu.rst
new file mode 100644
index 00000000000..f9632705abc
--- /dev/null
+++ b/doc/board/renesas/rcar-gen3-ebisu.rst
@@ -0,0 +1,47 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Renesas R-Car Gen3 E3 Ebisu board
+=================================
+
+- Renesas R-Car E3 Ebisu board: https://elinux.org/R-Car/Boards/Ebisu
+
+Build U-Boot
+------------
+
+Please follow :doc:`Renesas 64-bit ARM SoC build environment setup <build-env-aarch64>`
+to correctly set up the build environment before attempting to build U-Boot.
+
+Clone up to date U-Boot source code and change directory into the
+newly cloned source directory:
+
+.. code-block:: console
+
+    $ git clone https://source.denx.de/u-boot/u-boot.git/
+    $ cd u-boot
+
+Configure U-Boot:
+
+.. code-block:: console
+
+    $ make r8a77990_ebisu_defconfig
+
+Compile U-Boot:
+
+.. code-block:: console
+
+    $ make
+
+To speed up build process, -jN option can be passed to make to start
+multiple jobs at the same time, this is beneficial especially on SMP
+systems. The following example starts up to number of CPUs in the
+system jobs, which is the recommended amount:
+
+.. code-block:: console
+
+    $ make -j$(nproc)
+
+Install U-Boot
+--------------
+
+Please follow :doc:`Renesas R-Car Gen3 U-Boot installation <rcar-gen3-install>`
+to install U-Boot into HyperFlash.
diff --git a/doc/board/renesas/renesas.rst b/doc/board/renesas/renesas.rst
index e0c09798dbd..8aa868760d8 100644
--- a/doc/board/renesas/renesas.rst
+++ b/doc/board/renesas/renesas.rst
@@ -151,7 +151,7 @@ Renesas is a SoC solutions provider for automotive and industrial applications.
      - r8a77980_v3hsk_defconfig
 
    * -
-     - Ebisu
+     - :doc:`Ebisu <rcar-gen3-ebisu>`
      - R8A77990 (E3)
      - :doc:`arm64 <build-env-aarch64>`
      - r8a77990_ebisu_defconfig
-- 
2.53.0