From: Joakim Zhang <qiangqing.zhang@nxp.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Cc: dl-linux-imx <linux-imx@nxp.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: RE: [PATCH linux-can-next/flexcan 3/4] can: flexcan: add CAN wakeup function for i.MX8
Date: Fri, 25 Sep 2020 09:49:33 +0000 [thread overview]
Message-ID: <DB8PR04MB6795E28AB76F9575519AD5ECE6360@DB8PR04MB6795.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <f26c1dc3-f5f7-9a5a-ae2f-07cc2da6803e@pengutronix.de>
> -----Original Message-----
> From: Marc Kleine-Budde <mkl@pengutronix.de>
> Sent: 2020年9月25日 17:44
> To: Joakim Zhang <qiangqing.zhang@nxp.com>; linux-can@vger.kernel.org
> Cc: dl-linux-imx <linux-imx@nxp.com>; netdev@vger.kernel.org
> Subject: Re: [PATCH linux-can-next/flexcan 3/4] can: flexcan: add CAN wakeup
> function for i.MX8
>
> On 9/25/20 5:10 PM, Joakim Zhang wrote:
> > The System Controller Firmware (SCFW) is a low-level system function
> > which runs on a dedicated Cortex-M core to provide power, clock, and
> > resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
> > (QM, QP), and i.MX8QX (QXP, DX).
> >
> > SCU driver manages the IPC interface between host CPU and the SCU
> > firmware running on M4.
> >
> > For i.MX8, stop mode request is controlled by System Controller
> > Unit(SCU) firmware.
> >
> > Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
> > ---
>
> Just for reference, this fails to build with:
>
> ERROR: modpost: "imx_scu_get_handle" [drivers/net/can/flexcan.ko]
> undefined!
> ERROR: modpost: "imx_sc_misc_set_control" [drivers/net/can/flexcan.ko]
> undefined!
Yes, I build at my side, due to scu symbols have not export on non-scu systems.
Best Regards,
Joakim Zhang
> Marc
>
> --
> Pengutronix e.K. | Marc Kleine-Budde |
> Embedded Linux | https://www.pengutronix.de |
> Vertretung West/Dortmund | Phone: +49-231-2826-924 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
next prev parent reply other threads:[~2020-09-25 9:49 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 15:10 [PATCH linux-can-next/flexcan 0/4] patch set for flexcan Joakim Zhang
2020-09-25 15:10 ` [PATCH linux-can-next/flexcan 1/4] can: flexcan: initialize all flexcan memory for ECC function Joakim Zhang
2020-09-25 7:29 ` Marc Kleine-Budde
2020-09-25 7:49 ` Joakim Zhang
2020-09-27 8:01 ` Joakim Zhang
2020-09-27 19:56 ` Marc Kleine-Budde
2020-09-28 2:27 ` Joakim Zhang
2020-09-28 7:01 ` Marc Kleine-Budde
2020-09-28 7:58 ` Joakim Zhang
2020-09-28 8:20 ` Marc Kleine-Budde
2020-09-28 8:36 ` Joakim Zhang
2020-09-28 8:38 ` Marc Kleine-Budde
2020-09-25 7:33 ` Marc Kleine-Budde
2020-09-25 7:38 ` Joakim Zhang
2020-09-25 8:11 ` Marc Kleine-Budde
2020-09-25 8:51 ` Joakim Zhang
2020-09-25 9:03 ` Marc Kleine-Budde
2020-09-25 9:09 ` Joakim Zhang
2020-09-25 9:13 ` Marc Kleine-Budde
2020-09-25 15:10 ` [PATCH linux-can-next/flexcan 2/4] can: flexcan: add flexcan driver for i.MX8MP Joakim Zhang
2020-09-25 7:36 ` Marc Kleine-Budde
2020-09-25 7:42 ` Joakim Zhang
2020-09-25 9:04 ` Marc Kleine-Budde
2020-09-25 9:11 ` Joakim Zhang
2020-09-25 9:35 ` Marc Kleine-Budde
2020-09-25 9:48 ` Joakim Zhang
2020-09-25 9:57 ` Marc Kleine-Budde
2020-09-25 15:10 ` [PATCH linux-can-next/flexcan 3/4] can: flexcan: add CAN wakeup function for i.MX8 Joakim Zhang
2020-09-25 9:44 ` Marc Kleine-Budde
2020-09-25 9:49 ` Joakim Zhang [this message]
2020-09-29 10:48 ` Marc Kleine-Budde
2020-09-25 15:10 ` [PATCH linux-can-next/flexcan 4/4] can: flexcan: disable runtime PM if register flexcandev failed Joakim Zhang
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