[PATCH] Stop pmac_zilog from abusing 8250's device numbers.
davem at davemloft.net
Thu Apr 5 05:58:03 EST 2007
From: Russell King <rmk+lkml at arm.linux.org.uk>
Date: Wed, 4 Apr 2007 10:00:16 +0100
> On Wed, Apr 04, 2007 at 01:43:30AM -0700, David Miller wrote:
> > Well the "bad hack" we use on sparc gives usable serial ports,
> > properly ordered and using /dev/ttyS0, with a proper matching
> > console selection.
> Well yes, but it seems to have code in the architecture's early
> command line parsing to parse the "console=" argument to set this
> magical "serial_console" variable.
> Is this an approach you recommend for all architectures?
The platform should use whatever is appropriate, and matches
firmware/bios/whatever conventions, to determine this stuff.
On Sparc you get an openfirmware environment variable called
"output-device" that can point to a framebuffer or serial
The user can override this on the kernel command line, of course, and
what they ask for will get translated properly.
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