I noticed (the hard way) that the mcf.c driver doesn't support the fractional precision register on the MCF5272. This makes the console dicey at 115200 baud and a system clock of 66.0 MHz. On the other hand, if your hardware is running at 66.666 MHz, it probably isn't a problem.
Is this something worthy of a patch, and if so, how do I submit it? (Sorry, linux newbie) I have a few lines of code that seem to do the trick for me, but I hate to spoil that beautiful code if no one but me wants it. Diff output follows for linux-2.6.x/drivers/serial/mcf.c John 215,217d214 < #if defined(CONFIG_M5272) < unsigned int baudfr; < #endif 221,224d217 < #if defined(CONFIG_M5272) < baudclk = (MCF_BUSCLK / baud) / 32; < baudfr = (((MCF_BUSCLK / baud) + 1) / 2) % 16; < #else 226d218 < #endif 273,276d264 < #if defined(CONFIG_M5272) < writeb((baudfr & 0x0f), port->membase + MCFUART_UFPD); < #endif < _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
