On Wed, Sep 29, 2010 at 4:48 AM, kunal singh <[email protected]> wrote: > Hi, > > MY SETUP > ----------------- > We have a dm6446 based board & we have been using 2.6.18 (MV) Linux. > Recently I tried upgrading to kernel 2.6.32 (PSP 03.01). > > PROBLEM > ------------------- > When the kernel boots I can not see any boot messages on the serial > console. I assume that if the boot flow passes beyond console_init (in > init/main.c) I should start to receive printk messages on the console. But > it does not happen so. > > ADDITIONAL INFORMATION > --------------------- > (1) If use the printascii function (low level debug print) in the > init/main.c, I can get messages on serial console. So, I assume that nothing > is wrong with hardware. > (2) The command line arguments (printed from kernel using printascii) > show that console=ttyS0,115200n8 > > Any idea what could be wrong?
First Check your setup. I mean, with the same PC and serial port cable you can read and write to another device with 115200n8 comfiguration? Second You need to copy, in the mail, every messages you have on the serial line, from power up Third Check info here http://processors.wiki.ti.com/index.php/Category:DM644x Good work, Raffaele _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
