Revert "sandbox: move source files from board/ to arch/sandbox/"

This reverts commit 258060905e04fe2eb509756ef3b37e23e220a2d6.

Conflicts:
	boards.cfg

Wrong patch 25806090 was applied by accident. Revert it.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

1 files changed, 0 insertions, 299 deletions

diff --git a/doc/README.sandbox b/doc/README.sandbox
deleted file mode 100644
index 529c447a5b3..00000000000
--- a/doc/README.sandbox
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Copyright (c) 2014 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-Native Execution of U-Boot
-==========================
-
-The 'sandbox' architecture is designed to allow U-Boot to run under Linux on
-almost any hardware. To achieve this it builds U-Boot (so far as possible)
-as a normal C application with a main() and normal C libraries.
-
-All of U-Boot's architecture-specific code therefore cannot be built as part
-of the sandbox U-Boot. The purpose of running U-Boot under Linux is to test
-all the generic code, not specific to any one architecture. The idea is to
-create unit tests which we can run to test this upper level code.
-
-CONFIG_SANDBOX is defined when building a native board.
-
-The chosen vendor and board names are also 'sandbox', so there is a single
-board in board/sandbox/sandbox.
-
-CONFIG_SANDBOX_BIG_ENDIAN should be defined when running on big-endian
-machines.
-
-Note that standalone/API support is not available at present.
-
-
-Basic Operation
----------------
-
-To run sandbox U-Boot use something like:
-
-   make sandbox_config all
-   ./u-boot
-
-Note:
-   If you get errors about 'sdl-config: Command not found' you may need to
-   install libsdl1.2-dev or similar to get SDL support. Alternatively you can
-   build sandbox without SDL (i.e. no display/keyboard support) by removing
-   the CONFIG_SANDBOX_SDL line in include/configs/sandbox.h or using:
-
-      make sandbox_config all NO_SDL=1
-      ./u-boot
-
-
-U-Boot will start on your computer, showing a sandbox emulation of the serial
-console:
-
-
-U-Boot 2014.04 (Mar 20 2014 - 19:06:00)
-
-DRAM:  128 MiB
-Using default environment
-
-In:    serial
-Out:   lcd
-Err:   lcd
-=>
-
-You can issue commands as your would normally. If the command you want is
-not supported you can add it to include/configs/sandbox.h.
-
-To exit, type 'reset' or press Ctrl-C.
-
-
-Console / LCD support
----------------------
-
-Assuming that CONFIG_SANDBOX_SDL is defined when building, you can run the
-sandbox with LCD and keyboard emulation, using something like:
-
-   ./u-boot -d u-boot.dtb -l
-
-This will start U-Boot with a window showing the contents of the LCD. If
-that window has the focus then you will be able to type commands as you
-would on the console. You can adjust the display settings in the device
-tree file - see arch/sandbox/dts/sandbox.dts.
-
-
-Command-line Options
---------------------
-
-Various options are available, mostly for test purposes. Use -h to see
-available options. Some of these are described below.
-
-The terminal is normally in what is called 'raw-with-sigs' mode. This means
-that you can use arrow keys for command editing and history, but if you
-press Ctrl-C, U-Boot will exit instead of handling this as a keypress.
-
-Other options are 'raw' (so Ctrl-C is handled within U-Boot) and 'cooked'
-(where the terminal is in cooked mode and cursor keys will not work, Ctrl-C
-will exit).
-
-As mentioned above, -l causes the LCD emulation window to be shown.
-
-A device tree binary file can be provided with -d. If you edit the source
-(it is stored at arch/sandbox/dts/sandbox.dts) you must rebuild U-Boot to
-recreate the binary file.
-
-To execute commands directly, use the -c option. You can specify a single
-command, or multiple commands separated by a semicolon, as is normal in
-U-Boot. Be careful with quoting as the shall will normally process and
-swallow quotes. When -c is used, U-Boot exists after the command is complete,
-but you can force it to go to interactive mode instead with -i.
-
-
-Memory Emulation
-----------------
-
-Memory emulation is supported, with the size set by CONFIG_SYS_SDRAM_SIZE.
-The -m option can be used to read memory from a file on start-up and write
-it when shutting down. This allows preserving of memory contents across
-test runs. You can tell U-Boot to remove the memory file after it is read
-(on start-up) with the --rm_memory option.
-
-To access U-Boot's emulated memory within the code, use map_sysmem(). This
-function is used throughout U-Boot to ensure that emulated memory is used
-rather than the U-Boot application memory. This provides memory starting
-at 0 and extending to the size of the emulation.
-
-
-Storing State
--------------
-
-With sandbox you can write drivers which emulate the operation of drivers on
-real devices. Some of these drivers may want to record state which is
-preserved across U-Boot runs. This is particularly useful for testing. For
-example, the contents of a SPI flash chip should not disappear just because
-U-Boot exits.
-
-State is stored in a device tree file in a simple format which is driver-
-specific. You then use the -s option to specify the state file. Use -r to
-make U-Boot read the state on start-up (otherwise it starts empty) and -w
-to write it on exit (otherwise the stored state is left unchanged and any
-changes U-Boot made will be lost). You can also use -n to tell U-Boot to
-ignore any problems with missing state. This is useful when first running
-since the state file will be empty.
-
-The device tree file has one node for each driver - the driver can store
-whatever properties it likes in there. See 'Writing Sandbox Drivers' below
-for more details on how to get drivers to read and write their state.
-
-
-Running and Booting
--------------------
-
-Since there is no machine architecture, sandbox U-Boot cannot actually boot
-a kernel, but it does support the bootm command. Filesystems, memory
-commands, hashing, FIT images, verified boot and many other features are
-supported.
-
-When 'bootm' runs a kernel, sandbox will exit, as U-Boot does on a real
-machine. Of course in this case, no kernel is run.
-
-It is also possible to tell U-Boot that it has jumped from a temporary
-previous U-Boot binary, with the -j option. That binary is automatically
-removed by the U-Boot that gets the -j option. This allows you to write
-tests which emulate the action of chain-loading U-Boot, typically used in
-a situation where a second 'updatable' U-Boot is stored on your board. It
-is very risky to overwrite or upgrade the only U-Boot on a board, since a
-power or other failure will brick the board and require return to the
-manufacturer in the case of a consumer device.
-
-
-Supported Drivers
------------------
-
-U-Boot sandbox supports these emulations:
-
-- Block devices
-- Chrome OS EC
-- GPIO
-- Host filesystem (access files on the host from within U-Boot)
-- Keyboard (Chrome OS)
-- LCD
-- Serial (for console only)
-- Sound (incomplete - see sandbox_sdl_sound_init() for details)
-- SPI
-- SPI flash
-- TPM (Trusted Platform Module)
-
-Notable omissions are networking and I2C.
-
-A wide range of commands is implemented. Filesystems which use a block
-device are supported.
-
-Also sandbox uses generic board (CONFIG_SYS_GENERIC_BOARD) and supports
-driver model (CONFIG_DM) and associated commands.
-
-
-SPI Emulation
--------------
-
-Sandbox supports SPI and SPI flash emulation.
-
-This is controlled by the spi_sf argument, the format of which is:
-
-   bus:cs:device:file
-
-   bus    - SPI bus number
-   cs     - SPI chip select number
-   device - SPI device emulation name
-   file   - File on disk containing the data
-
-For example:
-
- dd if=/dev/zero of=spi.bin bs=1M count=4
- ./u-boot --spi_sf 0:0:M25P16:spi.bin
-
-With this setup you can issue SPI flash commands as normal:
-
-=>sf probe
-SF: Detected M25P16 with page size 64 KiB, total 2 MiB
-=>sf read 0 0 10000
-SF: 65536 bytes @ 0x0 Read: OK
-=>
-
-Since this is a full SPI emulation (rather than just flash), you can
-also use low-level SPI commands:
-
-=>sspi 0:0 32 9f
-FF202015
-
-This is issuing a READ_ID command and getting back 20 (ST Micro) part
-0x2015 (the M25P16).
-
-Drivers are connected to a particular bus/cs using sandbox's state
-structure (see the 'spi' member). A set of operations must be provided
-for each driver.
-
-
-Configuration settings for the curious are:
-
-CONFIG_SANDBOX_SPI_MAX_BUS
-	The maximum number of SPI buses supported by the driver (default 1).
-
-CONFIG_SANDBOX_SPI_MAX_CS
-	The maximum number of chip selects supported by the driver
-	(default 10).
-
-CONFIG_SPI_IDLE_VAL
-	The idle value on the SPI bus
-
-
-Writing Sandbox Drivers
------------------------
-
-Generally you should put your driver in a file containing the word 'sandbox'
-and put it in the same directory as other drivers of its type. You can then
-implement the same hooks as the other drivers.
-
-To access U-Boot's emulated memory, use map_sysmem() as mentioned above.
-
-If your driver needs to store configuration or state (such as SPI flash
-contents or emulated chip registers), you can use the device tree as
-described above. Define handlers for this with the SANDBOX_STATE_IO macro.
-See arch/sandbox/include/asm/state.h for documentation. In short you provide
-a node name, compatible string and functions to read and write the state.
-Since writing the state can expand the device tree, you may need to use
-state_setprop() which does this automatically and avoids running out of
-space. See existing code for examples.
-
-
-Testing
--------
-
-U-Boot sandbox can be used to run various tests, mostly in the test/
-directory. These include:
-
-  command_ut
-     - Unit tests for command parsing and handling
-  compression
-     - Unit tests for U-Boot's compression algorithms, useful for
-       security checking. It supports gzip, bzip2, lzma and lzo.
-  driver model
-     - test/dm/test-dm.sh to run these.
-  image
-     - Unit tests for images:
-          test/image/test-imagetools.sh - multi-file images
-          test/image/test-fit.py        - FIT images
-  tracing
-     - test/trace/test-trace.sh tests the tracing system (see README.trace)
-  verified boot
-      - See test/vboot/vboot_test.sh for this
-
-If you change or enhance any of the above subsystems, you shold write or
-expand a test and include it with your patch series submission. Test
-coverage in U-Boot is limited, as we need to work to improve it.
-
-Note that many of these tests are implemented as commands which you can
-run natively on your board if desired (and enabled).
-
-It would be useful to have a central script to run all of these.
-
---
-Simon Glass <sjg@chromium.org>
-Updated 22-Mar-14