From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dirk Behme <dirk.behme@de.bosch.com>
Date: Tue, 31 Jul 2012 11:07:21 +0200
Subject: [U-Boot] [PATCH 9/9] mx6qsabrelite: Add splaschscreen support
In-Reply-To: <1338485043-21666-9-git-send-email-fabio.estevam@freescale.com>
References: <1338485043-21666-1-git-send-email-fabio.estevam@freescale.com>
	<1338485043-21666-9-git-send-email-fabio.estevam@freescale.com>
Message-ID: <5017A049.5080807@de.bosch.com>
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To: u-boot@lists.denx.de

Hi Fabio,

On 31.05.2012 19:24, Fabio Estevam wrote:
> Add splaschscreen support.
> 
> It was used a Hannstar 1024 x 768 LVDS panel that can be connected to the mx6qsabrelite board.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
> I understand this patch will need to be improved, but I am posting it now, so that others
> can possibly test it.

Just fyi: On the ALKML there are IPU patches from Sascha Hauer for the 
kernel. Applying Sascha's patches to the kernel and this patch to U-Boot 
makes the kernel crash with a NULL pointer [1].

I haven't looked into the details, wild guessing is that the U-Boot 
patch enables some interrupts the IPU driver isn't ready to handle 
before he's done his own initialization.

Note that this is only fyi.

Best regards

Dirk

[1]

...
imx-ipuv3 2800000.ipu: DI1 base: 0x02a48000 remapped to c08ee000
Unable to handle kernel NULL pointer dereference at virtual address 0000000c
pgd = 80004000
[0000000c] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0    Not tainted
PC is at imx_drm_handle_vblank+0xc/0x20
LR is at ipu_irq_handler+0x1c/0xdc
...