Hi.
In fact it seems that the get_clocks return a freq of 33.6 Mhz whereas it should be 38.4 Mhz... So a #define CONFIG_8xx_GCLK_FREQ in the file config for my board works fine. I have now U-boot writing on the console.
Thanks for help.
Chris
-----Message d'origine----- De: nyet@mrv.com [mailto:nyet@mrv.com] Date: jeudi 22 mai 2003 21:58 À: Wolfgang Denk Cc: Christophe.LINDHEIMER@fr.thalesgroup.com; u-boot-users@lists.sourceforge.net Objet: Re: [U-Boot-Users] UBoot hangs in serial_putc on mpc8xx
The 8xx BRG code is has an interesting side effect if the cpu clock rate is not properly detected... the divisor will overflow the allowed bitwidth and an invalid value will get put brgc1
Hardcode CONFIG_8xx_GCLK_FREQ and/or brgc1 in speed.c and serial.c
I am working on putting together a fairly extensive 8xx patch to address this and many other problems.