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 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
