Currently uclass index is shown in DM tree dump which ignores alias
sequence numbering. The result could be confusing since these 2 numbers
could be different. Show device sequence number instead as it's more
meaningful.

Also update documentation to use sequence number.

Signed-off-by: Zixun LI <admin@hifiphile.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

%s/Synopis/Synopsis/g

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Add the description of CLI commands to the generated index.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

The output from "dm tree" or "dm uclass" is a bit annoying
if the number of devices available on the system is huge.
(This is especially true on sandbox when I debug some DM code.)

With this patch, we can specify the uclass name or the device
name that we are interested in in order to limit the output.

For instance,

=> dm uclass usb
uclass 121: usb
0     usb@1 @ 0bcff8b0, seq 1

uclass 124: usb

=> dm tree usb:usb@1
 Class     Index  Probed  Driver                Name
-----------------------------------------------------------
 usb           0  [   ]   usb_sandbox           usb@1
 usb_hub       0  [   ]   usb_hub               `-- hub
 usb_emul      0  [   ]   usb_sandbox_hub           `-- hub-emul
 usb_emul      1  [   ]   usb_sandbox_flash             |-- flash-stick@0
 usb_emul      2  [   ]   usb_sandbox_flash             |-- flash-stick@1
 usb_emul      3  [   ]   usb_sandbox_flash             |-- flash-stick@2
 usb_emul      4  [   ]   usb_sandbox_keyb              `-- keyb@3

If you want forward-matching against a uclass or udevice name,
you can specify "-e" option.

=> dm uclass -e usb
uclass 15: usb_emul
0     hub-emul @ 0bcffb00, seq 0
1     flash-stick@0 @ 0bcffc30, seq 1
2     flash-stick@1 @ 0bcffdc0, seq 2
3     flash-stick@2 @ 0bcfff50, seq 3
4     keyb@3 @ 0bd000e0, seq 4

uclass 64: usb_mass_storage

uclass 121: usb
0     usb@1 @ 0bcff8b0, seq 1

uclass 122: usb_dev_generic

uclass 123: usb_hub
0     hub @ 0bcff9b0, seq 0

uclass 124: usb

=> dm tree -e usb
 Class     Index  Probed  Driver                Name
-----------------------------------------------------------
 usb           0  [   ]   usb_sandbox           usb@1
 usb_hub       0  [   ]   usb_hub               `-- hub
 usb_emul      0  [   ]   usb_sandbox_hub           `-- hub-emul
 usb_emul      1  [   ]   usb_sandbox_flash             |-- flash-stick@0
 usb_emul      2  [   ]   usb_sandbox_flash             |-- flash-stick@1
 usb_emul      3  [   ]   usb_sandbox_flash             |-- flash-stick@2
 usb_emul      4  [   ]   usb_sandbox_keyb              `-- keyb@3

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

We use the terms 'distro' to mean extlinux but they are not really the
same. 'Distro' could refer to any method of booting a distribution,
whereas extlinux is a particular method.

Also we sometimes use syslinux, but it is better to use the same term in
all cases.

Rename distro to syslinux and also update bootstd uses of syslinux to use
extlinux instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add a -s flag to sort the top-level devices in order of uclass ID.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add a description and examples for the dm subcommands.

Signed-off-by: Simon Glass <sjg@chromium.org>