From mboxrd@z Thu Jan 1 00:00:00 1970 To: Yonghao Wang Cc: "linuxppc-embedded@lists.linuxppc.org" Subject: Re: Kernel message missing characters! From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Fri, 22 Mar 2002 14:01:34 GMT." <3C9B393E.4958C98E@ftel.co.uk> Date: Fri, 22 Mar 2002 16:20:58 +0100 Message-Id: <20020322152103.044F8109F3@denx.denx.de> Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: In message <3C9B393E.4958C98E@ftel.co.uk> you wrote: > > ppcboot as boot loader and kernel 2.4.7. The console is set up on serial > > SMC2. I've changed little bit code on arch/ppc/boot/mbx/m8260_tty.c to > enable it supports SMC2. But when I boot kernel, the console output Seems you didn't do this right, then. > seems missing characters like below: ... > Ttlmmr 2M;uig0Bfrhs al a 0000 > Lnxvrin247 wn@ihmr.tlc.k gcvrin30 1FiMr1 53:7GT20 > oe0:378pgs:378 > oe2:0pgs. > Kre omn ie ot/e/f wnsot121..4:epr/p-f-oti=7.61.1:7.6213121..1:5.5..:iuAM Well known problem, every second character is missing. > Does anybody can give me some clue how to fix it? Make sure to enable SMC1 as serial port, too. If the console is on SMC2, _both_ SMC1 and SMC2 must be enabled as a serial ports, or you have to adjust the uart driver a bit. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de Nobody trips over mountains. It is the small pebble that causes you to stumble. Pass all the pebbles in your path and you will find you have crossed the mountain. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/