netdev - Re: [PATCH] can: m_can: add support for bosch mcan version 3.3.0

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Date:   Thu, 26 Nov 2020 11:48:42 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Pankaj Sharma <pankj.sharma@...sung.com>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     sriram.dash@...sung.com, dmurphy@...com, wg@...ndegger.com,
        davem@...emloft.net, kuba@...nel.org, pankaj.dubey@...sung.com
Subject: Re: [PATCH] can: m_can: add support for bosch mcan version 3.3.0

On 11/26/20 5:51 AM, Pankaj Sharma wrote:
> Add support for mcan bit timing and control mode according to bosch mcan IP
> version 3.3.0
> The mcan version read from the Core Release field of CREL register would be
> 33. Accordingly the properties are to be set for mcan v3.3.0

BTW: do you have the v3.2 and v3.1 datasheets?

Marc

> Signed-off-by: Pankaj Sharma <pankj.sharma@...sung.com>
> ---
> Depends on:
> https://marc.info/?l=linux-can&m=160624495218700&w=2
> 
>  drivers/net/can/m_can/m_can.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
> index 86bbbfa..7652175 100644
> --- a/drivers/net/can/m_can/m_can.c
> +++ b/drivers/net/can/m_can/m_can.c
> @@ -1385,6 +1385,8 @@ static int m_can_dev_setup(struct m_can_classdev *m_can_dev)
>  						&m_can_data_bittiming_const_31X;
>  		break;
>  	case 32:
> +	case 33:
> +		/* Support both MCAN version v3.2.x and v3.3.0 */
>  		m_can_dev->can.bittiming_const = m_can_dev->bit_timing ?
>  			m_can_dev->bit_timing : &m_can_bittiming_const_31X;
>  
> 


-- 
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 |



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