Re: [PATCH v2 0/5] can: bxcan: add support for single peripheral configuration

[Marc Kleine-Budde]

On 27.04.2023 22:45:35, Dario Binacchi wrote:
> 
> The series adds support for managing bxCAN controllers in single peripheral
> configuration.
> Unlike stm32f4 SOCs, where bxCAN controllers are only in dual peripheral
> configuration, stm32f7 SOCs contain three CAN peripherals, CAN1 and CAN2
> in dual peripheral configuration and CAN3 in single peripheral
> configuration:
> - Dual CAN peripheral configuration:
>  * CAN1: Primary bxCAN for managing the communication between a secondary
>    bxCAN and the 512-byte SRAM memory.
>  * CAN2: Secondary bxCAN with no direct access to the SRAM memory.
>    This means that the two bxCAN cells share the 512-byte SRAM memory and
>    CAN2 can't be used without enabling CAN1.
> - Single CAN peripheral configuration:
>  * CAN3: Primary bxCAN with dedicated Memory Access Controller unit and
>    512-byte SRAM memory.
> 
> The driver has been tested on the stm32f769i-discovery board with a
> kernel version 5.19.0-rc2 in loopback + silent mode:
> 
> ip link set can[0-2] type can bitrate 125000 loopback on listen-only on
> ip link set up can[0-2]
> candump can[0-2] -L &
> cansend can[0-2] 300#AC.AB.AD.AE.75.49.AD.D1

Applied to linux-can-next.

Thanks,
Marc

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