linux-kernel - Re: [PATCH v6 25/27] ARM: dts: at91: sam9x7: add device tree for SoC

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Message-ID: <bf77fe95-0982-4605-a493-25c889e81639@microchip.com>
Date: Tue, 27 Aug 2024 09:50:36 +0000
From: <Varshini.Rajendran@...rochip.com>
To: <krzk@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <Nicolas.Ferre@...rochip.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 25/27] ARM: dts: at91: sam9x7: add device tree for SoC

Hi Krzysztof,

Apologies for the delay in response.

On 31/07/24 2:00 pm, Krzysztof Kozlowski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On 29/07/2024 09:09, Varshini Rajendran wrote:
>> Add device tree file for SAM9X7 SoC family.
>>
>> Co-developed-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
>> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
>> Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
> 
> ...
> 
>> +
>> +             can1: can@...04000 {
>> +                     compatible = "bosch,m_can";
>> +                     reg = <0xf8004000 0x100>, <0x300000 0xbc00>;
>> +                     reg-names = "m_can", "message_ram";
>> +                     interrupts = <30 IRQ_TYPE_LEVEL_HIGH 0>,
>> +                                  <69 IRQ_TYPE_LEVEL_HIGH 0>;
>> +                     interrupt-names = "int0", "int1";
>> +                     clocks = <&pmc PMC_TYPE_PERIPHERAL 30>, <&pmc PMC_TYPE_GCK 30>;
>> +                     clock-names = "hclk", "cclk";
>> +                     assigned-clocks = <&pmc PMC_TYPE_CORE PMC_UTMI>, <&pmc PMC_TYPE_GCK 30>;
>> +                     assigned-clock-rates = <480000000>, <40000000>;
>> +                     assigned-clock-parents = <&pmc PMC_TYPE_CORE PMC_UTMI>, <&pmc PMC_TYPE_CORE PMC_UTMI>;
>> +                     bosch,mram-cfg = <0x7800 0 0 64 0 0 32 32>;
>> +                     status = "disabled";
>> +             };
>> +
>> +             tcb: timer@...08000 {
>> +                     compatible = "microchip,sam9x7-tcb","atmel,sama5d2-tcb", "simple-mfd", "syscon";
> 
> Why this is simple-mfd without children?

The tcb node will have each TC (Timer Counter) Block as a child when it 
is configured to be used as either one of the following modes Timer or 
Counter / Capture / PWM.
> 
>> +                     reg = <0xf8008000 0x100>;
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     interrupts = <17 IRQ_TYPE_LEVEL_HIGH 0>;
>> +                     clocks = <&pmc PMC_TYPE_PERIPHERAL 17>, <&pmc PMC_TYPE_GCK 17>, <&clk32k 0>;
>> +                     clock-names = "t0_clk", "gclk", "slow_clk";
>> +                     status = "disabled";
>> +             };
>> +
> 
> Best regards,
> Krzysztof
> 

-- 
Thanks and Regards,
Varshini Rajendran.