From: "Hunter Cobbs" <hunter.cobbs@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: Guide to porting to an MPC82xx or any PPC for that mater
Date: Thu, 19 Apr 2007 21:15:27 -0500 [thread overview]
Message-ID: <ad84a70a0704191915p3b17af9wef3c7b6af2f96383@mail.gmail.com> (raw)
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Is there anywhere I can turn to help me figure out how to at least get a
serial console running on SCC1 from an MPC8247 in Linux 2.6.(14+) ?
Our current version of uboot puts data out on SCC1 quite well and I can
compile and load a 2.6 kernel. I run into a problem following boot where no
more data comes over the SCC1.
I have used the jtag port to get a register dump during uboot and one as
soon as it's obvious no data is coming from scc1. None of the registers
pertaining to the serial configuration are different.
I've been digging around in the kernel and the default SCC1 hookup bitmasks
are exactly the same as our working 2.4 kernel. I just can't seem to make
linux use SCC1 as a serial console. I even tried consoel=ttyCPM[0..5] to
attempt to force it out a SCC1.
Since this is my first attempt at porting (or creating a BSP for that
matter), I'm sure I'm overlooking something exceedingly easy. I just need
something other than raw kernel code to help me out.
--
Hunter Cobbs
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reply other threads:[~2007-04-20 2:15 UTC|newest]
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