From: "Andreas Färber" <afaerber@suse.de>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-devel@nongnu.org, patches@linaro.org
Subject: Re: [Qemu-devel] [PATCH v2 7/9] hw/vexpress.c: Instantiate the motherboard CLCD
Date: Wed, 25 Jan 2012 19:28:36 +0100 [thread overview]
Message-ID: <4F2049D4.7000404@suse.de> (raw)
In-Reply-To: <1327408760-3666-8-git-send-email-peter.maydell@linaro.org>
Am 24.01.2012 13:39, schrieb Peter Maydell:
> Instantiate the CLCD on the vexpress motherboard as well as one on
> the daughterboard -- the A15 daughterboard does not have a CLCD
> and so relies on the motherboard one.
>
> At the moment QEMU doesn't provide infrastructure for selecting
> which display device gets to actually show graphics -- the first
> one registered is it. Fortunately this works for the major use
> case (Linux): if the daughterboard has a CLCD it will come first
> and be used, otherwise we fall back to the motherboard CLCD.
> So we don't (currently) need to implement the control register
> which allows software to tell the mux which video output to pass
> through to the outside world.
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
I do hope we find a solution to deal with n displays in the future. I
consider that a post-QOM topic and maybe Anthony's planned DisplayState
refactoring helps with that.
The Origen Board has (provisions for) an LCD in addition to HDMI output,
for instance.
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
next prev parent reply other threads:[~2012-01-25 18:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-24 12:39 [Qemu-devel] [PATCH v2 0/9] Add support for Cortex-A15 and vexpress-a15 Peter Maydell
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 1/9] Add dummy implementation of generic timer cp15 registers Peter Maydell
2012-01-25 12:37 ` Andreas Färber
2012-01-25 13:01 ` Peter Maydell
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 2/9] Add Cortex-A15 CPU definition Peter Maydell
2012-01-25 12:31 ` Andreas Färber
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 3/9] hw/a15mpcore.c: Add Cortex-A15 private peripheral model Peter Maydell
2012-01-25 16:08 ` Andreas Färber
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 4/9] hw/vexpress.c: Make motherboard peripheral memory map table-driven Peter Maydell
2012-01-25 16:59 ` Andreas Färber
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 5/9] hw/vexpress.c: Move secondary CPU boot code to SRAM Peter Maydell
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 6/9] hw/vexpress.c: Factor out daughterboard-specific initialization Peter Maydell
2012-01-25 18:04 ` Andreas Färber
2012-01-25 19:53 ` Peter Maydell
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 7/9] hw/vexpress.c: Instantiate the motherboard CLCD Peter Maydell
2012-01-25 18:28 ` Andreas Färber [this message]
2012-02-10 2:51 ` Paul Brook
2012-02-15 13:36 ` Peter Maydell
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 8/9] arm_boot: Pass base address of GIC CPU interface, not whole GIC Peter Maydell
2012-01-24 12:39 ` [Qemu-devel] [PATCH v2 9/9] hw/vexpress.c: Add vexpress-a15 machine Peter Maydell
2012-01-25 18:15 ` Andreas Färber
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