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Message-ID: <e6f36ce5-1197-d93b-705b-2f7d68761f04@hartkopp.net>
Date: Thu, 26 Nov 2020 12:21:36 +0100
From: Oliver Hartkopp <socketcan@...tkopp.net>
To: Marc Kleine-Budde <mkl@...gutronix.de>,
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 26.11.20 11:48, Marc Kleine-Budde wrote:
> 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?
Unfortunately Bosch does not give access to older documents, so I tried
to concentrate all my downloaded versions of public available
information here:
https://github.com/hartkopp/M_CAN-User-Manual-History
PR's with updates are welcome ;-)
Best,
Oliver
ps. @Bosch Semiconductors - Read the README there! I would like to
remove my own collection.
>
> 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;
>>
>>
>
>
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