Do you know what the CONFIG_ option is called for the legacy driver.
- k
On Aug 6, 2008, at 1:02 PM, Stephen Neuendorffer wrote:
The problem (in my case) is that the legacy-serial driver doesn't
accept
all of the 16550 configurations accepted by the regular ns16550
driver.
The problem is not related to simple-bus, but only became visible when
simple-bus bindings are used because the legacy-serial driver
specifically looks for an ns16550 node contained by a simple-bus.
Most likely the hpcn_defconfig disables the legacy-serial driver
altogether.
Steve
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:linuxppc-dev-
[EMAIL PROTECTED] On Behalf Of
Scott
Wood
Sent: Wednesday, August 06, 2008 10:36 AM
To: [EMAIL PROTECTED]
Cc: ppc-dev list
Subject: Re: hang w/ppc6xx_defconfig related to 'simple-bus'
compatible
On Wed, Aug 06, 2008 at 07:41:28AM -0600, Grant Likely wrote:
On Tue, Aug 05, 2008 at 08:21:31AM -0500, Kumar Gala wrote:
I'm trying to get the ppc6xx_defconfig booting on any 8641
(74xx/e600)
system. If I remove the 'simple-bus' compatible from the soc node
in
the .dts it works. Otherwise it hangs at but and looks to be
crashed in
the serial driver due to accessing memory at 0.
I've tried the same .dts (w/'simple-bus') using the
mpc8641_hpcn_defconfig and things work.
The Xilinx folks hit something similar. ns16550 nodes get matched
if
the parent claims simple-bus. If extra stuff needs to be done to
use
that port, then bad things happen.
If extra stuff needs to be done, it shouldn't claim to be a
simple-bus.
-Scott
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