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
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