On Thu, Oct 14, 2010 at 5:27 PM, Nicolas Luna <luna...@gmail.com> wrote: > > On Thu, Oct 14, 2010 at 5:18 PM, Victor Rodriguez <vm.ro...@gmail.com> > wrote: >> >> On Thu, Oct 14, 2010 at 4:10 PM, Nicolas Luna <luna...@gmail.com> wrote: >> > Victor, >> > What should I check? You mean the file system /dev/ttyS.. is not >> > correct? >> > Regards, >> > Nicolas >> >> >> Do not top post :) >> >> > >> > On Thu, Oct 14, 2010 at 4:53 PM, Victor Rodriguez <vm.ro...@gmail.com> >> > wrote: >> >> >> >> On Thu, Oct 14, 2010 at 3:41 PM, Nicolas Luna <luna...@gmail.com> >> >> wrote: >> >> > Hi, >> >> > I'm trying to communication with UART1 on OMAP-L138. At the moment, I >> >> > can >> >> > write message to the serial port but I cannot read some. I got >> >> > the error >> >> > 11: >> >> > Resource temporarily unavailable. >> >> > To activate the UART1, I commented one line (see below) in >> >> > board-da850-evm.c. I wonder what is "too much work in irq53", is it >> >> > has >> >> > anything to do with my problem? Is it a know bug to not be able to >> >> > read >> >> > from >> >> > UART1 under Davinci? >> >> > /* >> >> > * shut down uart 0 and 1; they are not used on the board and >> >> > * accessing them causes endless "too much work in irq53" messages >> >> > * with arago fs >> >> > */ >> >> > //__raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30); >> >> > __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30); >> >> >> >> >> >> Check with latest file system from angstrom I had the same problem >> >> with the initial support fro Hawkboard omapl 138 >> >> Check this commit >> >> >> https://mail.sasken.com/OWA/redir.aspx?C=ded1d3bc21834b138e93aa6e04f85155&URL=http%3a%2f%2fgit.kernel.org%2f%3fp%3dlinux%2fkernel%2fgit%2fkhilman%2flinux-davinci.git%3ba%3dcommitdiff%3bh%3d6c18c91b3a6db6169998b54df12c9d53e74999f3 >> >> This patch adds initial support for the Hawkboard-L138 system >> It is under the machine name "omapl138_hawkboard". >> This system is based on the da850 davinci CPU architecture. >> Information on these system may be found at http://www.hawkboard.org. >> Basic support for the UART console is included in this patch. >> It's tested with latest Angstrom File Systems like ramdisk >> from http://alturl.com/imb45. >> >> >> Some old file systems used to open all the Serial Ports but in OMAP >> l138 the uart 1 is multiplexed and generate the spurious interrupt Try >> with latest Argo File Systems >> >> >> Regards >> >> Victor Rodriguez >> >> >> >> Regards >> >> >> >> Victor Rodriguez >> >> >> >> > Thanks for support. >> >> > Regards, >> >> > Nicolas >> >> > >> >> > >> >> > >> >> > _______________________________________________ >> >> > Davinci-linux-open-source mailing list >> >> > Davinci-linux-open-source@linux.davincidsp.com >> >> > >> >> > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source >> >> > >> >> > >> > >> > > > Victor, > Sorry for top post, gmail automaticlly top post. > I tried the file system with my current kernel image and I got the same > error. Then I tried the linux image provided into the tar generated by the > siteweb but I am not able to boot it because I need an other JTAG ID that > the default one because of my silicon revision. > I checked to the patch and I got the same configuration. > Do you have any idea what I should change into my kernel source code to > solve the uart issue? > Thank you > Nicolas >
Hi Nicolas I would like to see the log file, another thing witch hardware are you using ? it is important because i know th reason on hawk board but i do not have any other hardware to test it. Actually you are facing a problem that we had some time ago check this thread http://davinci-linux-open-source.1494791.n2.nabble.com/PATCH-v5-davinci-Initial-support-for-Omapl138-Hawkboard-td5508030.html#a5511016 but could be something different please send your log and which hardware are you using Regards Victor Rodriguez _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
