Lee,
It's great!
I deeply appreciated your kindness. From the performance test result you
did,
I think MVL 2.6.10 + TI patch level 45 (Write: 10MB/sec) is acceptable in most
applications.
I remember you mentioned you had the same problem on git 2.6.23. But you
made the benchmark result for 2.6.23 GIT (Read: 7MB/sec, Write: 0.4MB/sec),
I wonder if you make USB works on git 2.6.23 without DMA? In other words,
USB driver is ok on git 2.6.23 (PIO mode)? You know so many people faced with
the same problem.
Hope am not boring you and hope everything goes well with you :)
BTW:
We are make attempts to port drivers from 2.6.10 to git tree then pushing
upstream.
we hope it's helpful for everyone.
ex: resizer driver
http://www.mail-archive.com/[email protected]/msg04831.html
http://www.mail-archive.com/[email protected]/msg04978.html
We embrace open source :)
/Frank
----- Receiving the following content -----
From: Ashuaria Lee
Receiver: frank.xue
Time: 2008-04-29, 10:19:39
Subject: Re: Re: Davinci-EVM USB issue at git tree 2.6.23
Ok.
My speed benchmark result was.
Environment:
USB stick memory 1GB. FAT32 formated
mount command: mount -t vfat -o sync /dev/sda1 /mnt/sda1
1. 2.6.23 GIT w/o DMA (PIO mode)
Read: 7MB/sec
Write: 0.4MB/sec
2. MVL 2.6.10 + TI patch 45 (with DMA and without DMA)
Read: 17MB/sec
Write: 10MB/sec
3. My PC (CentOS 4.5)
Read: 17MB/sec
Write: 10MB/sec
does this make it clear?
2008/4/26, frank xue <[EMAIL PROTECTED]>:
>
>
> Lee,
>
> Thank you! I really appreciate this. I got the patch from the
> URL you mentioned. Now I'm trying port these patches to git kernel.
>
> BTW:
> You said USB performance is *VERY GOOD*, so would you please let
> us know the speed of read/write? Thx
>
>
> From: Ashuaria Lee
> Receiver: frank.xue
> Time: 2008-04-25, 10:42:54
> Subject: Re: Davinci-EVM USB issue at git tree 2.6.23
>
>
>
>
> Hi
>
> You should have a look on the TI's patch for MVL 2.6.10
> I had the same problem on GIt 2.6.23.
> Now I'm running MVL 2.6.10 + TI patch level 45 and it rocks!!!
> USB performance is VERY good on 'MVL 2.6.10 + TI patch'
>
> I wonder if it is possible to port the TI patch to GIT kernel.
>
> ps. SDHC works perfect on 'MVL 2.6.10 + TI patch' =-)
> ps2. Oh, The Link I forgot to mention
> http://wiki.davincidsp.com/index.php?title=Linux_patches
> refer the bottom side.
>
> Good luck!
>
> 2008/4/25, frank xue <[EMAIL PROTECTED]>:
> > Hello All,
> > I'm using Davinci EVM for developing multimedia product. I'm trying to use
> > 2.6.23 kernel cut from git tree. In the default configuration of the
> kernel,
> > the usb driver mode is "USB peripheral", I changed it to "USB Host".
> > re-build the kernel and boot. I noticed the usb driver is unstable. I did
> the
> > following test:
> >
> > #mount /dev/sda1 /mnt
> >
> > (1) read from U-disk
> > #while [ 1 ]; do cp /mnt/test.gz /tmp/test.gz; sync; rm -f /tmp/test.gz;
> done;
> >
> > It's ok.
> >
> > (2) write to U-disk, some errors occured:
> > #while [ 1 ]; do cp /tmp/test.gz /mnt/test.gz; sync; rm -f /mnt/test.gz;
> done;
> >
> > ERROR Message:
> >
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > sd 0:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00
> > end_request: I/O error, dev sda, sector 130650
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > sd 0:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00
> > end_request: I/O error, dev sda, sector 194
> > FAT: FAT read failed (blocknr 162)
> > cp: usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > writing `/mnt/kav7_1.rar': Input/output error
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > ..........
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> > sd 0:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00
> > end_request: I/O error, dev sda, sector 187
> > Buffer I/O error on device sda1, logical block 155
> > lost page write due to I/O error on sda1
> > Buffer I/O error on device sda1, logical block 156
> > lost page write due to I/O error on sda1
> > Buffer I/O error on device sda1, logical block 157
> > lost page write due to I/O error on sda1
> > Buffer I/O error on device sda1, logical block 158
> > lost page write due to I/O error on sda1
> > Buffer I/O error on device sda1, logical block 159
> > lost page write due to I/O error on sda1
> > Buffer I/O error on device sda1, logical block 160
> > lost page write due to I/O error on sda1
> > usb 1-1: reset high speed USB device using musb_hdrc and address 2
> >
> >
> > Can anybody help me out for solving this issue? What should i do the next
> step?
> > Thanks.
> >
> >
> >
> > Frank Xue
> >
> > _______________________________________________
> > Davinci-linux-open-source mailing list
> > [email protected]
> >
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
> >
> >
>
>
> --
> Regards,
> Ashuaria Lee
>
> __________ Information from ESET Smart Security, version of virus signature
> database 3053 (20080424) __________
>
> The message was checked by ESET Smart Security.
>
> http://www.eset.com
>
>
>
--
Regards,
Ashuaria Lee
__________ Information from ESET Smart Security, version of virus signature
database 3060 (20080428) __________
The message was checked by ESET Smart Security.
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