On Thu, Mar 27, 2008 at 11:36:12AM +0000, Preetham Soundararajan wrote: > Hello Tom, > Thanks for the reply. I think there is convincing evidence in your system > that > the UART2 and the Video will run to-gether. Regarding the flow control for > the > UART2 here is the link I was talking about > http://www.mail-archive.com/[email protected]/msg03767.html
Hmm. Okay, thanks. I'll have to find time to verify the HW flow control in our system. > Also now I'm facing a new problem: > > I've made the changes as recommended by the mailing list in board-evm.c > serial.c and clock.c as shown by this link: > http://www.mail-archive.com/[email protected]/msg02308.html > > But i'm still not able to enable UART2. Is there anything extra that must be > done. I don't know; I didn't use that code. MV support (you've paid for it, so you might as well make use of it too) provided me with a patch to get UART2 going. > I've replaced UART1 parameters with that of UART2. > > as an FYI. the contents of /dev/tts folder contain two devices 0 and 1. This > I find very strange as I've not enabled UART1. Not strange at all if you've configured your kernel for 2 UARTs. Those numbers in /dev are logical, not physical. >But upon checking contents > of /proc/tty/driver/serial things were clearer. UART1 is infact not enabled... > Below are the contents: > serinfo:1.0 driver revision: > 0: uart:16550A mmio:0x01C20000 irq:40 tx:18696 rx:7118 RTS|CTS|DTR|DSR > 1: uart:unknown port:00000000 irq:0 > > Also the contents of /proc/interrupts are: > > CPU0 > 0: 0 dm644xv4l2 > 6: 0 dm644xresizer > 8: 188133 davincifb > 12: 1 musb_hdrc > 13: 10216 EMAC > 22: 671 ide0 > 32: 19 free-run counter > 33: 0 high-res timer > 35: 313916 system tick > 39: 70774 i2c > 40: 25439 serial > Err: 0 > > As you can see only UART0 interrupt is enabled and in drivers too only > UART0 is present. > > Can you figure out where I've gone wrong. Sorry, no, because you and I are using different patch sets. Somebody that is using <http://www.mail-archive.com/[email protected]/msg02308.html> is more likely to know whether it is correct & complete. Tom -- /"\ ASCII Ribbon Campaign | \ / | Email to user 'CTZ001' X Against HTML | at 'email.mot.com' / \ in e-mail & news | _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
