Hi Marc,
On 20/07/21 8:24 pm, Marc Kleine-Budde wrote:
> On 20.07.2021 19:46:39, Aswath Govindraju wrote:
>> From: Faiz Abbas <faiz_abbas@xxxxxx>
>>
>> Add support for 14 MCAN controllers in main domain and 2 MCAN controllers
>> present in mcu domain. All the MCAN controllers support classic CAN
>> messages as well as CAN_FD messages.
>>
>> Signed-off-by: Faiz Abbas <faiz_abbas@xxxxxx>
>> Signed-off-by: Aswath Govindraju <a-govindraju@xxxxxx>
>> ---
>> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 196 ++++++++++++++++++
>> .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 28 +++
>> 2 files changed, 224 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
>> index cf3482376c1e..4215b8e6785a 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
>> @@ -1940,4 +1940,200 @@
>> bus_freq = <1000000>;
>> };
>> };
>> +
>> + main_mcan0: can@2701000 {
>> + compatible = "bosch,m_can";
>> + reg = <0x00 0x02701000 0x00 0x200>,
>> + <0x00 0x02708000 0x00 0x8000>;
>> + reg-names = "m_can", "message_ram";
>> + power-domains = <&k3_pds 156 TI_SCI_PD_EXCLUSIVE>;
>> + clocks = <&k3_clks 156 1>, <&k3_clks 156 0>;
>> + clock-names = "cclk", "hclk";
>> + interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
>> + interrupt-names = "int0", "int1";
>> + bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
>
> Are you intentionally only enabling 1 TX buffer?
>
I have used this configuration for testing. It can be increased to 32 if
required. Is it better to set it to the maximum number of buffers ?
Thanks,
Aswath
> Marc
>
