Re: [Soekris] USB port on 6501, 2GB memory configuration?

[Soren Kristensen]

Hi Ralph,

Ralph Becker-Szendy wrote:
 Two quick questions about the 6501.  First: According to the
 documentation, it has USB 2.0 ports.  But so does the 5501, and on my
 5501 under OpenBSD, the USB ports run at USB 1.0 speed.  Which is a
 problem, because I need to occasionally connect a USB disk drive for
 backups, and at USB 1.0 speed, that takes ludicrously long.  So does
 anyone know what chipset on the 6501 provides the USB?  And maybe even
 whether OpenBSD supports that chipset at 2.0 speed?  I'm still running
 OBSD 4.6, but new 6501's would be installed with version 4.9 (but I
 think the USB stack hasn't changed significantly).

Afaik, the net5501 should work just fine at 480 Mbit/sec, having a 
standard EHCI USB controller, just like the net6501 have standard EHCI 
controllers

For net6501 details see the Intel Atom E6xx/EG20T docs.

 Second question, probably mostly for Soren: I definitely need 2GB of
 memory (unfortunately).  Any idea when the 6501 with 2GB will be
 available (I only need minuscule quantities: one or two).  I vaguely
 remember that the first series will be 1GB, and the 1.6GHz/2GB will be
 significantly later.

We just got the first 120 production net6501-50's, will be ready to ship 
sometimes next week. The next 600 net6501-50 will start as soon as the 
first batch have been tested, to ship at the end of August. Then full 
production run to then start early September, to ship Late September, 
and will include all three standard versions.


Best Regards,


Soren Kristensen

CEO  Chief Engineer
Soekris Engineering, Inc.
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Re: [Soekris] USB port on 6501, 2GB memory configuration?

[Greg Troxel]

Ralph Becker-Szendy ra...@lr.los-gatos.ca.us writes:

 Two quick questions about the 6501.  First: According to the 
 documentation, it has USB 2.0 ports.  But so does the 5501, and on my 
 5501 under OpenBSD, the USB ports run at USB 1.0 speed.  Which is a 
 problem, because I need to occasionally connect a USB disk drive for 
 backups, and at USB 1.0 speed, that takes ludicrously long.  So does 
 anyone know what chipset on the 6501 provides the USB?  And maybe even 
 whether OpenBSD supports that chipset at 2.0 speed?  I'm still running 
 OBSD 4.6, but new 6501's would be installed with version 4.9 (but I 
 think the USB stack hasn't changed significantly).

For what it's worth, this is what happens under NetBSD 5.1_STABLE on a
5501:

ohci0 at pci0 dev 21 function 0: vendor 0x1022 product 0x2094 (rev. 0x02)
ohci0: interrupting at irq 7
ohci0: OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
gcscehci0 at pci0 dev 21 function 1: vendor 0x1022 product 0x2095 (rev. 0x02)
gcscehci0: interrupting at irq 7
gcscehci0: EHCI version 1.0
gcscehci0: companion controller, 4 ports each: ohci0
usb1 at gcscehci0: USB revision 2.0
uhub0 at usb0: vendor 0x1022 OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
uhub1 at usb1: vendor 0x1022 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub1: 4 ports with 4 removable, self powered
umass0 at uhub1 port 1 configuration 1 interface 0
umass0: Western Digital Ext HDD 1021, rev 2.00/20.02, addr 2
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, 1 lun per target
sd0 at scsibus0 target 0 lun 0: WD, Ext HDD 1021, 2002 disk fixed

I get about 11.7 MB/s (dd from raw disk at 32k blocksize, and 12.6 MB/s
at 256k), which is slow for USB2, but definitely the right order of
magnitude - I think that drive does about 23 MB/s when connected to an
Intel desktop.

I suspect it's not so much the USB stack as the chipset glue for ehci
attachment.

So you can probably either use NetBSD code as a guide or just merge some
of it into OpenBSD.


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