doc: arch: Convert README.sh to reST

Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

3 files changed, 107 insertions, 97 deletions

diff --git a/doc/README.sh b/doc/README.sh
deleted file mode 100644
index 766a8c8a29..0000000000
--- a/doc/README.sh
+++ /dev/null
@@ -1,97 +0,0 @@
-
-U-Boot for Renesas SuperH
-	Last update 01/18/2008 by Nobuhiro Iwamatsu
-
-================================================================================
-0. What's this?
-	This file contains status information for the port of U-Boot to the
-	Renesas SuperH series of CPUs.
-
-================================================================================
-1. Overview
-	SuperH has an original boot loader. However, source code is dirty, and
-	maintenance is not done.
-	To improve sharing and the maintenance of the code, Nobuhiro Iwamatsu
-	started the porting to u-boot in 2007.
-
-================================================================================
-2. Supported CPUs
-
-	2.1. Renesas SH7750/SH7750R
-		This CPU has the SH4 core.
-
-	2.2. Renesas SH7722
-		This CPU has the SH4AL-DSP core.
-
-	2.3. Renesas SH7780
-		This CPU has the SH4A core.
-
-================================================================================
-3. Supported Boards
-
-	3.1. Hitachi UL MS7750SE01/MS7750RSE01
-		Board specific code is in board/ms7750se
-		To use this board, type "make ms7750se_config".
-		Support devices are :
-			- SCIF
-			- SDRAM
-			- NOR Flash
-			- Marubun PCMCIA
-
-	3.2. Hitachi UL MS7722SE01
-		Board specific code is in board/ms7722se
-		To use this board, type "make ms7722se_config".
-		Support devices are :
-			- SCIF
-			- SDRAM
-			- NOR Flash
-			- Marubun PCMCIA
-			- SMC91x ethernet
-
-	3.2. Hitachi UL MS7720ERP01
-		Board specific code is in board/ms7720se
-		To use this board, type "make ms7720se_config".
-		Support devices are :
-			- SCIF
-			- SDRAM
-			- NOR Flash
-			- Marubun PCMCIA
-
-	3.3. Renesas R7780MP
-		Board specific code is in board/r7780mp
-		To use this board, type "make r7780mp_config".
-		Support devices are :
-			- SCIF
-			- DDR-SDRAM
-			- NOR Flash
-			- Compact Flash
-			- ASIX ethernet
-			- SH7780 PCI bridge
-			- RTL8110 ethernet
-
-	** README **
-		In SuperH, S-record and binary of made u-boot work on the memory.
-		When u-boot is written in the flash, it is necessary to change the
-		address by using 'objcopy'.
-		ex) shX-linux-objcopy -Ibinary -Osrec u-boot.bin u-boot.flash.srec
-
-================================================================================
-4. Compiler
-	You can use the following of u-boot to compile.
-		- SuperH Linux Open site
-			http://www.superh-linux.org/
-		- KPIT GNU tools
-			http://www.kpitgnutools.com/
-
-================================================================================
-5. Future
-	I plan to support the following CPUs and boards.
-		5.1. CPUs
-			- SH7751R(SH4)
-
-		5.2. Boards
-			- Many boards ;-)
-
-================================================================================
-Copyright (c) 2007,2008
-    Nobuhiro Iwamatsu <iwamatsu@nigaur.org>
diff --git a/doc/arch/index.rst b/doc/arch/index.rst
index ee90ec15be..d24662e361 100644
--- a/doc/arch/index.rst
+++ b/doc/arch/index.rst
@@ -12,4 +12,5 @@ Architecture-specific doc
    mips
    nds32
    nios2
+   sh
    x86
diff --git a/doc/arch/sh.rst b/doc/arch/sh.rst
new file mode 100644
index 0000000000..3a3f92dd3e
--- /dev/null
+++ b/doc/arch/sh.rst
@@ -0,0 +1,106 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. Copyright (c) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigaur.org>
+
+SuperH
+======
+
+What's this?
+------------
+This file contains status information for the port of U-Boot to the
+Renesas SuperH series of CPUs.
+
+Overview
+--------
+SuperH has an original boot loader. However, source code is dirty, and
+maintenance is not done. To improve sharing and the maintenance of the code,
+Nobuhiro Iwamatsu started the porting to U-Boot in 2007.
+
+Supported CPUs
+--------------
+
+Renesas SH7750/SH7750R
+^^^^^^^^^^^^^^^^^^^^^^
+This CPU has the SH4 core.
+
+Renesas SH7722
+^^^^^^^^^^^^^^
+This CPU has the SH4AL-DSP core.
+
+Renesas SH7780
+^^^^^^^^^^^^^^
+This CPU has the SH4A core.
+
+Supported Boards
+----------------
+
+Hitachi UL MS7750SE01/MS7750RSE01
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Board specific code is in board/ms7750se
+To use this board, type "make ms7750se_config".
+Support devices are:
+
+   - SCIF
+   - SDRAM
+   - NOR Flash
+   - Marubun PCMCIA
+
+Hitachi UL MS7722SE01
+^^^^^^^^^^^^^^^^^^^^^
+Board specific code is in board/ms7722se
+To use this board, type "make ms7722se_config".
+Support devices are:
+
+   - SCIF
+   - SDRAM
+   - NOR Flash
+   - Marubun PCMCIA
+   - SMC91x ethernet
+
+Hitachi UL MS7720ERP01
+^^^^^^^^^^^^^^^^^^^^^^
+Board specific code is in board/ms7720se
+To use this board, type "make ms7720se_config".
+Support devices are:
+
+   - SCIF
+   - SDRAM
+   - NOR Flash
+   - Marubun PCMCIA
+
+Renesas R7780MP
+^^^^^^^^^^^^^^^
+Board specific code is in board/r7780mp
+To use this board, type "make r7780mp_config".
+Support devices are:
+
+   - SCIF
+   - DDR-SDRAM
+   - NOR Flash
+   - Compact Flash
+   - ASIX ethernet
+   - SH7780 PCI bridge
+   - RTL8110 ethernet
+
+In SuperH, S-record and binary of made u-boot work on the memory.
+When u-boot is written in the flash, it is necessary to change the
+address by using 'objcopy'::
+
+   ex) shX-linux-objcopy -Ibinary -Osrec u-boot.bin u-boot.flash.srec
+
+Compiler
+--------
+You can use the following of u-boot to compile.
+   - `SuperH Linux Open site <http://www.superh-linux.org/>`_
+   - `KPIT GNU tools <http://www.kpitgnutools.com/>`_
+
+Future
+------
+I plan to support the following CPUs and boards.
+
+CPUs
+^^^^
+- SH7751R(SH4)
+
+Boards
+^^^^^^
+Many boards ;-)