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Re: [Qemu-devel] Powerpc regressions?
From: |
Hollis Blanchard |
Subject: |
Re: [Qemu-devel] Powerpc regressions? |
Date: |
Wed, 5 Aug 2009 16:55:03 -0700 |
On Tue, Aug 4, 2009 at 7:05 PM, Rob Landley<address@hidden> wrote:
> On Sunday 02 August 2009 07:25:45 Alexander Graf wrote:
>> On 02.08.2009, at 12:04, Aurelien Jarno wrote:
>> >
>> > I think using console=ttyPZ0 which is the serial port name on PowerPC
>> > will give you more details.
>
> Yup, that gave me boot messages. Thanks.
>
> Huh. It used ttyS0 with the other .config (I at least got boot messages), I
> wonder why that changed? (Just confirmed that this .config has the driver
> for a
> 16550a built in. And the name "ttyS0" for the first serial device is
> presumably about as genric as using eth1 for the first wired ethernet
> device...)
Sadly no. This was a subject of much debate, but Russel King insisted
that ttyS would be used only for NS16550-style UARTs. In the past, the
pmac_zilog driver hijacked that major/minor anyways, but it was later
changed to use its own major/minor (and ttyPZ). (I don't remember when
that change occurred, but it should be pretty easy for you to find out
if you care.)
-Hollis