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
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