Pull request for efi-2023-07-rc1

Documentation:
 
 * man-page for coninfo command
 * documentation style
 * switch settings for boot modes on AM62 SK
 
 UEFI:
 
 * avoid using deprecated HandleProtocol()
 * set static attribute for non-exported functions and variables
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Merge tag 'efi-2023-07-rc1' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2023-07-rc1

Documentation:

* man-page for coninfo command
* documentation style
* switch settings for boot modes on AM62 SK

UEFI:

* avoid using deprecated HandleProtocol()
* set static attribute for non-exported functions and variables

doc/board/ti/am62x_sk.rst

@@ -229,3 +229,28 @@ Image formats:
                 | |   SPL DTB 1...N   | |
                 | +-------------------+ |
                 +-----------------------+
+
+Switch Setting for Boot Mode
+----------------------------
+
+Boot Mode pins provide means to select the boot mode and options before the
+device is powered up. After every POR, they are the main source to populate
+the Boot Parameter Tables.
+
+The following table shows some common boot modes used on AM62 platform. More
+details can be found in the Technical Reference Manual:
+https://www.ti.com/lit/pdf/spruiv7 under the `Boot Mode Pins` section.
+
+*Boot Modes*
+
+============ ============= =============
+Switch Label SW2: 12345678 SW3: 12345678
+============ ============= =============
+SD           01000000      11000010
+OSPI         00000000      11001110
+EMMC         00000000      11010010
+UART         00000000      11011100
+USB DFU      00000000      11001010
+============ ============= =============
+
+For SW2 and SW1, the switch state in the "ON" position = 1.

doc/build/documentation.rst

@@ -26,6 +26,9 @@ The *htmldocs* target is used to build the HTML documentation. It uses the
     # Display the documentation in a graphical web browser
     x-www-browser doc/output/index.html
 
+The HTML documentation is published at https://u-boot.readthedocs.io. The build
+process for that site is controlled by the file *.readthedocs.yml*.
+
 Infodoc documentation
 ---------------------
 

doc/develop/docstyle.rst

@@ -0,0 +1,29 @@
+.. SPDX-License-Identifier: GPL-2.0+:
+
+Documentation Style
+===================
+
+Documentation is crucial for the U-Boot project. It has to encompass the needs
+of different reader groups from first time users to developers and maintainers.
+This requires different types of documentation like tutorials, how-to-guides,
+explanatory texts, and reference.
+
+We want to be able to generate documentation in different target formats. We
+therefore use `Sphinx <https://www.sphinx-doc.org>`_ for the generation of
+documents from reStructured text.
+
+We apply the following rules:
+
+* Documentation files are located in *doc/* or its sub-directories.
+* Each documentation file is added to an index page to allow navigation
+  to the document.
+* For documentation we use reStructured text conforming to the requirements
+  of `Sphinx <https://www.sphinx-doc.org>`_.
+* For documentation within code we follow the Linux kernel guide
+  `Writing kernel-doc comments <https://docs.kernel.org/doc-guide/kernel-doc.html>`_.
+* We try to stick to 80 columns per line in documents.
+* For tables we prefer simple tables over grid tables. We avoid list tables
+  as they make the reStructured text documents hard to read.
+* Before submitting documentation patches we build the HTML documentation and
+  fix all warnings. The build process is described in
+  :doc:`/build/documentation`.

doc/develop/index.rst

@@ -11,6 +11,7 @@ General
 
    codingstyle
    designprinciples
+   docstyle
    patman
    process
    release_cycle

doc/usage/cmd/coninfo.rst

@@ -0,0 +1,55 @@
+.. SPDX-License-Identifier: GPL-2.0+:
+
+coninfo command
+===============
+
+Synopsis
+--------
+
+::
+
+    coninfo
+
+Description
+-----------
+
+The coninfo command provides a list of available console input and output
+devices and their assignment as stdin, stdout, stderr console devices.
+
+If CONFIG_SYS_CONSOLE_IS_IN_ENV=y, the assignment is controlled by the
+environment variables stdin, stdout, stderr which contain a comma separated
+list of device names.
+
+Example
+--------
+
+.. code-block:: console
+
+    => coninfo
+    List of available devices
+    |-- pl011@9000000 (IO)
+    |   |-- stdin
+    |   |-- stdout
+    |   |-- stderr
+    |-- serial (IO)
+    |-- usbkbd (I)
+    => setenv stdin pl011@9000000,usbkbd
+    => coninfo
+    List of available devices
+    |-- pl011@9000000 (IO)
+    |   |-- stdin
+    |   |-- stdout
+    |   |-- stderr
+    |-- serial (IO)
+    |-- usbkbd (I)
+    |   |-- stdin
+
+Configuration
+-------------
+
+The coninfo command is only available if CONFIG_CMD_CONSOLE=y.
+
+Return value
+------------
+
+The return value $? is always 0 (true).

doc/usage/index.rst

@@ -39,6 +39,7 @@ Shell commands
    cmd/cbsysinfo
    cmd/cls
    cmd/cmp
+   cmd/coninfo
    cmd/conitrace
    cmd/cyclic
    cmd/dm