mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
doc: arch: Convert README.sandbox 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>
This commit is contained in:
Bin Meng
Tom Rini
parent
f25c369096
commit
49116e6d23
|
|
@ -12,5 +12,6 @@ Architecture-specific doc
|
|||
mips
|
||||
nds32
|
||||
nios2
|
||||
sandbox
|
||||
sh
|
||||
x86
|
||||
|
|
|
|||
|
|
@ -1,10 +1,12 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0+ */
|
||||
/*
|
||||
* Copyright (c) 2014 The Chromium OS Authors.
|
||||
*/
|
||||
.. SPDX-License-Identifier: GPL-2.0+ */
|
||||
.. Copyright (c) 2014 The Chromium OS Authors.
|
||||
.. sectionauthor:: Simon Glass <sjg@chromium.org>
|
||||
|
||||
Sandbox
|
||||
=======
|
||||
|
||||
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)
|
||||
|
|
@ -35,33 +37,31 @@ Note that standalone/API support is not available at present.
|
|||
Basic Operation
|
||||
---------------
|
||||
|
||||
To run sandbox U-Boot use something like:
|
||||
To run sandbox U-Boot use something like::
|
||||
|
||||
make sandbox_defconfig 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:
|
||||
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_defconfig all NO_SDL=1
|
||||
./u-boot
|
||||
make sandbox_defconfig all NO_SDL=1
|
||||
./u-boot
|
||||
|
||||
U-Boot will start on your computer, showing a sandbox emulation of the serial
|
||||
console:
|
||||
console::
|
||||
|
||||
U-Boot 2014.04 (Mar 20 2014 - 19:06:00)
|
||||
|
||||
U-Boot 2014.04 (Mar 20 2014 - 19:06:00)
|
||||
DRAM: 128 MiB
|
||||
Using default environment
|
||||
|
||||
DRAM: 128 MiB
|
||||
Using default environment
|
||||
|
||||
In: serial
|
||||
Out: lcd
|
||||
Err: lcd
|
||||
=>
|
||||
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.
|
||||
|
|
@ -73,7 +73,7 @@ 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:
|
||||
sandbox with LCD and keyboard emulation, using something like::
|
||||
|
||||
./u-boot -d u-boot.dtb -l
|
||||
|
||||
|
|
@ -198,18 +198,23 @@ Sandbox Variants
|
|||
|
||||
There are unfortunately quite a few variants at present:
|
||||
|
||||
sandbox - should be used for most tests
|
||||
sandbox64 - special build that forces a 64-bit host
|
||||
sandbox_flattree - builds with dev_read_...() functions defined as inline.
|
||||
We need this build so that we can test those inline functions, and we
|
||||
cannot build with both the inline functions and the non-inline functions
|
||||
since they are named the same.
|
||||
sandbox_noblk - builds without CONFIG_BLK, which means the legacy block
|
||||
drivers are used. We cannot use both the legacy and driver-model block
|
||||
drivers since they implement the same functions
|
||||
sandbox_spl - builds sandbox with SPL support, so you can run spl/u-boot-spl
|
||||
and it will start up and then load ./u-boot. It is also possible to
|
||||
run ./u-boot directly.
|
||||
sandbox:
|
||||
should be used for most tests
|
||||
sandbox64:
|
||||
special build that forces a 64-bit host
|
||||
sandbox_flattree:
|
||||
builds with dev_read\_...() functions defined as inline.
|
||||
We need this build so that we can test those inline functions, and we
|
||||
cannot build with both the inline functions and the non-inline functions
|
||||
since they are named the same.
|
||||
sandbox_noblk:
|
||||
builds without CONFIG_BLK, which means the legacy block
|
||||
drivers are used. We cannot use both the legacy and driver-model block
|
||||
drivers since they implement the same functions
|
||||
sandbox_spl:
|
||||
builds sandbox with SPL support, so you can run spl/u-boot-spl
|
||||
and it will start up and then load ./u-boot. It is also possible to
|
||||
run ./u-boot directly.
|
||||
|
||||
Of these sandbox_noblk can be removed once CONFIG_BLK is used everwhere, and
|
||||
sandbox_spl can probably be removed since it is a superset of sandbox.
|
||||
|
|
@ -234,42 +239,44 @@ promiscuous mode so that the network card won't filter out packets not destined
|
|||
for its configured (on Linux) MAC address.
|
||||
|
||||
The RAW sockets Ethernet API requires elevated privileges in Linux. You can
|
||||
either run as root, or you can add the capability needed like so:
|
||||
either run as root, or you can add the capability needed like so::
|
||||
|
||||
sudo /sbin/setcap "CAP_NET_RAW+ep" /path/to/u-boot
|
||||
sudo /sbin/setcap "CAP_NET_RAW+ep" /path/to/u-boot
|
||||
|
||||
The default device tree for sandbox includes an entry for eth0 on the sandbox
|
||||
host machine whose alias is "eth1". The following are a few examples of network
|
||||
operations being tested on the eth0 interface.
|
||||
|
||||
sudo /path/to/u-boot -D
|
||||
.. code-block:: none
|
||||
|
||||
DHCP
|
||||
....
|
||||
sudo /path/to/u-boot -D
|
||||
|
||||
setenv autoload no
|
||||
setenv ethrotate no
|
||||
setenv ethact eth1
|
||||
dhcp
|
||||
DHCP
|
||||
....
|
||||
|
||||
PING
|
||||
....
|
||||
setenv autoload no
|
||||
setenv ethrotate no
|
||||
setenv ethact eth1
|
||||
dhcp
|
||||
|
||||
setenv autoload no
|
||||
setenv ethrotate no
|
||||
setenv ethact eth1
|
||||
dhcp
|
||||
ping $gatewayip
|
||||
PING
|
||||
....
|
||||
|
||||
TFTP
|
||||
....
|
||||
setenv autoload no
|
||||
setenv ethrotate no
|
||||
setenv ethact eth1
|
||||
dhcp
|
||||
ping $gatewayip
|
||||
|
||||
setenv autoload no
|
||||
setenv ethrotate no
|
||||
setenv ethact eth1
|
||||
dhcp
|
||||
setenv serverip WWW.XXX.YYY.ZZZ
|
||||
tftpboot u-boot.bin
|
||||
TFTP
|
||||
....
|
||||
|
||||
setenv autoload no
|
||||
setenv ethrotate no
|
||||
setenv ethact eth1
|
||||
dhcp
|
||||
setenv serverip WWW.XXX.YYY.ZZZ
|
||||
tftpboot u-boot.bin
|
||||
|
||||
The bridge also supports (to a lesser extent) the localhost interface, 'lo'.
|
||||
|
||||
|
|
@ -287,12 +294,14 @@ The default device tree for sandbox includes an entry for lo on the sandbox
|
|||
host machine whose alias is "eth5". The following is an example of a network
|
||||
operation being tested on the lo interface.
|
||||
|
||||
TFTP
|
||||
....
|
||||
.. code-block:: none
|
||||
|
||||
setenv ethrotate no
|
||||
setenv ethact eth5
|
||||
tftpboot u-boot.bin
|
||||
TFTP
|
||||
....
|
||||
|
||||
setenv ethrotate no
|
||||
setenv ethact eth5
|
||||
tftpboot u-boot.bin
|
||||
|
||||
|
||||
SPI Emulation
|
||||
|
|
@ -300,7 +309,7 @@ SPI Emulation
|
|||
|
||||
Sandbox supports SPI and SPI flash emulation.
|
||||
|
||||
This is controlled by the spi_sf argument, the format of which is:
|
||||
This is controlled by the spi_sf argument, the format of which is::
|
||||
|
||||
bus:cs:device:file
|
||||
|
||||
|
|
@ -309,24 +318,23 @@ This is controlled by the spi_sf argument, the format of which is:
|
|||
device - SPI device emulation name
|
||||
file - File on disk containing the data
|
||||
|
||||
For example:
|
||||
For example::
|
||||
|
||||
dd if=/dev/zero of=spi.bin bs=1M count=4
|
||||
./u-boot --spi_sf 0:0:M25P16:spi.bin
|
||||
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:
|
||||
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
|
||||
=>
|
||||
=>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:
|
||||
also use low-level SPI commands::
|
||||
|
||||
=>sspi 0:0 32 9f
|
||||
FF202015
|
||||
=>sspi 0:0 32 9f
|
||||
FF202015
|
||||
|
||||
This is issuing a READ_ID command and getting back 20 (ST Micro) part
|
||||
0x2015 (the M25P16).
|
||||
|
|
@ -338,15 +346,14 @@ 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_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_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
|
||||
CONFIG_SPI_IDLE_VAL:
|
||||
The idle value on the SPI bus
|
||||
|
||||
|
||||
Block Device Emulation
|
||||
|
|
@ -354,20 +361,20 @@ Block Device Emulation
|
|||
|
||||
U-Boot can use raw disk images for block device emulation. To e.g. list
|
||||
the contents of the root directory on the second partion of the image
|
||||
"disk.raw", you can use the following commands:
|
||||
"disk.raw", you can use the following commands::
|
||||
|
||||
=>host bind 0 ./disk.raw
|
||||
=>ls host 0:2
|
||||
=>host bind 0 ./disk.raw
|
||||
=>ls host 0:2
|
||||
|
||||
A disk image can be created using the following commands:
|
||||
A disk image can be created using the following commands::
|
||||
|
||||
$> truncate -s 1200M ./disk.raw
|
||||
$> echo -e "label: gpt\n,64M,U\n,,L" | /usr/sbin/sgdisk ./disk.raw
|
||||
$> lodev=`sudo losetup -P -f --show ./disk.raw`
|
||||
$> sudo mkfs.vfat -n EFI -v ${lodev}p1
|
||||
$> sudo mkfs.ext4 -L ROOT -v ${lodev}p2
|
||||
$> truncate -s 1200M ./disk.raw
|
||||
$> echo -e "label: gpt\n,64M,U\n,,L" | /usr/sbin/sgdisk ./disk.raw
|
||||
$> lodev=`sudo losetup -P -f --show ./disk.raw`
|
||||
$> sudo mkfs.vfat -n EFI -v ${lodev}p1
|
||||
$> sudo mkfs.ext4 -L ROOT -v ${lodev}p2
|
||||
|
||||
or utilize the device described in test/py/make_test_disk.py:
|
||||
or utilize the device described in test/py/make_test_disk.py::
|
||||
|
||||
#!/usr/bin/python
|
||||
import make_test_disk
|
||||
|
|
@ -395,16 +402,16 @@ space. See existing code for examples.
|
|||
Debugging the init sequence
|
||||
---------------------------
|
||||
|
||||
If you get a failure in the initcall sequence, like this:
|
||||
If you get a failure in the initcall sequence, like this::
|
||||
|
||||
initcall sequence 0000560775957c80 failed at call 0000000000048134 (err=-96)
|
||||
|
||||
Then you use can use grep to see which init call failed, e.g.:
|
||||
Then you use can use grep to see which init call failed, e.g.::
|
||||
|
||||
$ grep 0000000000048134 u-boot.map
|
||||
stdio_add_devices
|
||||
|
||||
Of course another option is to run it with a debugger such as gdb:
|
||||
Of course another option is to run it with a debugger such as gdb::
|
||||
|
||||
$ gdb u-boot
|
||||
...
|
||||
|
|
@ -414,6 +421,8 @@ Of course another option is to run it with a debugger such as gdb:
|
|||
Note that two locations are reported, since this function is used in both
|
||||
board_init_f() and board_init_r().
|
||||
|
||||
.. code-block:: none
|
||||
|
||||
(gdb) r
|
||||
Starting program: /tmp/b/sandbox/u-boot
|
||||
[Thread debugging using libthread_db enabled]
|
||||
|
|
@ -445,13 +454,13 @@ environment variable to the correct pathname before building U-Boot.
|
|||
Using valgrind / memcheck
|
||||
-------------------------
|
||||
|
||||
It is possible to run U-Boot under valgrind to check memory allocations:
|
||||
It is possible to run U-Boot under valgrind to check memory allocations::
|
||||
|
||||
valgrind u-boot
|
||||
|
||||
If you are running sandbox SPL or TPL, then valgrind will not by default
|
||||
notice when U-Boot jumps from TPL to SPL, or from SPL to U-Boot proper. To
|
||||
fix this, use:
|
||||
fix this, use::
|
||||
|
||||
valgrind --trace-children=yes u-boot
|
||||
|
||||
|
|
@ -462,22 +471,24 @@ 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
|
||||
- Run this pytest
|
||||
./test/py/test.py --bd sandbox --build -k ut_dm -v
|
||||
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
|
||||
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:
|
||||
Run this pytest::
|
||||
|
||||
./test/py/test.py --bd sandbox --build -k ut_dm -v
|
||||
|
||||
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
|
||||
|
|
@ -495,14 +506,12 @@ Memory Map
|
|||
Sandbox has its own emulated memory starting at 0. Here are some of the things
|
||||
that are mapped into that memory:
|
||||
|
||||
======= ======================== ===============================
|
||||
Addr Config Usage
|
||||
======= ======================== ===============================
|
||||
0 CONFIG_SYS_FDT_LOAD_ADDR Device tree
|
||||
e000 CONFIG_BLOBLIST_ADDR Blob list
|
||||
10000 CONFIG_MALLOC_F_ADDR Early memory allocation
|
||||
f0000 CONFIG_PRE_CON_BUF_ADDR Pre-console buffer
|
||||
100000 CONFIG_TRACE_EARLY_ADDR Early trace buffer (if enabled)
|
||||
=
|
||||
|
||||
|
||||
--
|
||||
Simon Glass <sjg@chromium.org>
|
||||
Updated 22-Mar-14
|
||||
======= ======================== ===============================
|
||||
Loading…
Reference in New Issue
Block a user