From: Frieder Schrempf <frieder.schrempf@kontron.de>
To: "linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
NXP Linux Team <linux-imx@nxp.com>,
"Peng Fan (OSS)" <peng.fan@oss.nxp.com>,
Dong Aisheng <aisheng.dong@nxp.com>
Subject: Re: Starting app on i.MX8MM M4 core from DDR via remoteproc
Date: Wed, 22 Mar 2023 10:57:12 +0100 [thread overview]
Message-ID: <07bdb54a-d5c8-ed3b-a1a4-8d43c27cac3b@kontron.de> (raw)
In-Reply-To: <0dcfbc49-d3db-cc4b-b5e1-8341dda672ec@kontron.de>
On 22.03.23 09:46, Frieder Schrempf wrote:
> Hello,
>
> I'm having problems with running an application from DDR memory on the
> M4 core of an i.MX8MM using remoteproc in Linux.
>
> * starting the app compiled for internal RAM from Linux works fine
> * starting the app compiled for DDR from U-Boot works fine
> * starting the app compiled for DDR from Linux doesn't show any output
> on the M4 debug UART
>
> Below there is some more information on my setup. If anyone has an idea
> for debugging this, please let me know.
I just came across Peng's patches [1] that add support for firmware in
DDR. With this applied it seems to work now!
[1]
https://patchwork.kernel.org/project/linux-remoteproc/cover/20230209063816.2782206-1-peng.fan@oss.nxp.com/
prev parent reply other threads:[~2023-03-22 9:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-22 8:46 Frieder Schrempf
2023-03-22 9:57 ` Frieder Schrempf [this message]
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