From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 4/4] usb: Change power-on / scanning timeout handling
Date: Tue, 15 Mar 2016 09:52:37 -0600 [thread overview]
Message-ID: <56E82FC5.8080101@wwwdotorg.org> (raw)
In-Reply-To: <56E80B3B.2030209@denx.de>
On 03/15/2016 07:16 AM, Stefan Roese wrote:
> Hi Stephen,
>
> On 14.03.2016 18:51, Stephen Warren wrote:
>> On 03/14/2016 04:18 AM, Stefan Roese wrote:
>>> This patch changes the USB port scanning procedure and timeout
>>> handling in the following ways:
>> >..
>>
>> Tested-by: Stephen Warren <swarren@nvidia.com>
>>
>> (including some tests with a 7-port (i.e. 2 nested 4-port) USB hub maxed
>> out with devices).
>
> Thanks for doing those tests on your platform. I'm interested, how
> big the time difference between stock U-Boot and the patched
> version is though. Could you please post those numbers once for
> reference, if its not too much trouble?
It looks like ~17s for v2016.01, and ~6s for u-boot/master from
yesterday plus these patches, with the following configuration:
Tegra124 (Jetson TK1) # usb tree
USB device tree:
1 Hub (480 Mb/s, 0mA)
u-boot EHCI Host Controller
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
|
+-2 Hub (480 Mb/s, 100mA)
| USB2.0 Hub
|
+-3 Hub (480 Mb/s, 100mA)
| | USB2.0 Hub
| |
| +-6 Mass Storage (480 Mb/s, 2mA)
| | Sunplus Innovation Technology. USB to Serial-ATA bridge
FF980813AF0000000000005FF16BFF
| |
| +-7 Mass Storage (480 Mb/s, 100mA)
| | Generic Mass Storage Device 00000000000006
| |
| +-8 Human Interface (1.5 Mb/s, 70mA)
| | LITEON Technology USB Multimedia Keyboard
| |
| +-9 Human Interface (1.5 Mb/s, 100mA)
| Microsoft Microsoft IntelliMouse? Explore
|
+-4 Vendor specific (480 Mb/s, 250mA)
| ASIX Elec. Corp. AX88x72A 000001
|
+-5 Mass Storage (480 Mb/s, 200mA)
SanDisk Extreme AA010114140242512567
next prev parent reply other threads:[~2016-03-15 15:52 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-14 10:18 [U-Boot] [PATCH v3 0/4] usb: Reduce USB scanning time Stefan Roese
2016-03-14 10:18 ` [U-Boot] [PATCH v3 1/4] usb: legacy_hub_port_reset(): Speedup hub reset handling Stefan Roese
2016-03-14 10:18 ` [U-Boot] [PATCH v3 2/4] usb: Remove 200 ms delay in usb_hub_port_connect_change() Stefan Roese
2016-03-14 17:06 ` Stephen Warren
2016-03-14 10:18 ` [U-Boot] [PATCH v3 3/4] usb: Don't reset the USB hub a 2nd time Stefan Roese
2016-03-14 10:18 ` [U-Boot] [PATCH v3 4/4] usb: Change power-on / scanning timeout handling Stefan Roese
2016-03-14 12:45 ` Hans de Goede
2016-03-14 13:19 ` Stefan Roese
2016-03-14 17:31 ` Stephen Warren
2016-03-14 19:47 ` Hans de Goede
2016-03-15 9:46 ` Stefan Roese
2016-03-15 15:42 ` Stephen Warren
2016-03-14 17:51 ` Stephen Warren
2016-03-15 13:16 ` Stefan Roese
2016-03-15 15:52 ` Stephen Warren [this message]
2016-03-15 16:00 ` Stefan Roese
2016-03-15 16:07 ` Stephen Warren
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56E82FC5.8080101@wwwdotorg.org \
--to=swarren@wwwdotorg.org \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.