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[PATCH v4 1/5] arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux

Jayesh Choudhary posted 5 patches 2 years, 9 months ago
There is a newer version of this series
[PATCH v4 1/5] arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux
Posted by Jayesh Choudhary 2 years, 9 months ago 
From: Siddharth Vadapalli <s-vadapalli@ti.com>

The system controller node manages the CTRL_MMR0 region.
Add serdes_ln_ctrl node which is used for controlling the SERDES lane mux.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
[j-choudhary@ti.com: Add reg property to fix dtc warning]
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
---
 arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
index e9169eb358c1..29be6d28ee31 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
@@ -5,6 +5,9 @@
  * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
  */
 
+#include <dt-bindings/mux/mux.h>
+#include <dt-bindings/mux/ti-serdes.h>
+
 &cbass_main {
 	msmc_ram: sram@70000000 {
 		compatible = "mmio-sram";
@@ -26,6 +29,26 @@ l3cache-sram@200000 {
 		};
 	};
 
+	scm_conf: syscon@100000 {
+		compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
+		reg = <0x00 0x00100000 0x00 0x1c000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x00 0x00 0x00100000 0x1c000>;
+
+		serdes_ln_ctrl: mux-controller@4080 {
+			compatible = "mmio-mux";
+			reg = <0x00004080 0x30>;
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
+					<0x4088 0x3>, <0x408c 0x3>, /* SERDES0 lane2/3 select */
+					<0x4090 0x3>, <0x4094 0x3>, /* SERDES1 lane0/1 select */
+					<0x4098 0x3>, <0x409c 0x3>, /* SERDES1 lane2/3 select */
+					<0x40a0 0x3>, <0x40a4 0x3>, /* SERDES2 lane0/1 select */
+					<0x40a8 0x3>, <0x40ac 0x3>; /* SERDES2 lane2/3 select */
+		};
+	};
+
 	gic500: interrupt-controller@1800000 {
 		compatible = "arm,gic-v3";
 		#address-cells = <2>;
-- 
2.25.1
Re: [PATCH v4 1/5] arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux
Posted by Verma, Achal 2 years, 9 months ago 
Hi,

On 4/25/2023 6:46 PM, Jayesh Choudhary wrote:
> From: Siddharth Vadapalli <s-vadapalli@ti.com>
> 
> The system controller node manages the CTRL_MMR0 region.
> Add serdes_ln_ctrl node which is used for controlling the SERDES lane mux.
> 
> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
> [j-choudhary@ti.com: Add reg property to fix dtc warning]
> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
> ---
>   arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 23 ++++++++++++++++++++++
>   1 file changed, 23 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> index e9169eb358c1..29be6d28ee31 100644
> --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> @@ -5,6 +5,9 @@
>    * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
>    */
>   
> +#include <dt-bindings/mux/mux.h>
> +#include <dt-bindings/mux/ti-serdes.h>
> +
>   &cbass_main {
>   	msmc_ram: sram@70000000 {
>   		compatible = "mmio-sram";
> @@ -26,6 +29,26 @@ l3cache-sram@200000 {
>   		};
>   	};
>   
> +	scm_conf: syscon@100000 {
Please check syscon address.

Thanks,
Achal Verma
> +		compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
> +		reg = <0x00 0x00100000 0x00 0x1c000>;
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges = <0x00 0x00 0x00100000 0x1c000>;
> +
> +		serdes_ln_ctrl: mux-controller@4080 {
> +			compatible = "mmio-mux";
> +			reg = <0x00004080 0x30>;
> +			#mux-control-cells = <1>;
> +			mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
> +					<0x4088 0x3>, <0x408c 0x3>, /* SERDES0 lane2/3 select */
> +					<0x4090 0x3>, <0x4094 0x3>, /* SERDES1 lane0/1 select */
> +					<0x4098 0x3>, <0x409c 0x3>, /* SERDES1 lane2/3 select */
> +					<0x40a0 0x3>, <0x40a4 0x3>, /* SERDES2 lane0/1 select */
> +					<0x40a8 0x3>, <0x40ac 0x3>; /* SERDES2 lane2/3 select */
> +		};
> +	};
> +
>   	gic500: interrupt-controller@1800000 {
>   		compatible = "arm,gic-v3";
>   		#address-cells = <2>;
Re: [PATCH v4 1/5] arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux
Posted by Siddharth Vadapalli 2 years, 9 months ago 
Achal,

On 15/05/23 11:25, Verma, Achal wrote:
> Hi,
> 
> On 4/25/2023 6:46 PM, Jayesh Choudhary wrote:
>> From: Siddharth Vadapalli <s-vadapalli@ti.com>
>>
>> The system controller node manages the CTRL_MMR0 region.
>> Add serdes_ln_ctrl node which is used for controlling the SERDES lane mux.
>>
>> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
>> [j-choudhary@ti.com: Add reg property to fix dtc warning]
>> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 23 ++++++++++++++++++++++
>>   1 file changed, 23 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>> b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>> index e9169eb358c1..29be6d28ee31 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>> @@ -5,6 +5,9 @@
>>    * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
>>    */
>>   +#include <dt-bindings/mux/mux.h>
>> +#include <dt-bindings/mux/ti-serdes.h>
>> +
>>   &cbass_main {
>>       msmc_ram: sram@70000000 {
>>           compatible = "mmio-sram";
>> @@ -26,6 +29,26 @@ l3cache-sram@200000 {
>>           };
>>       };
>>   +    scm_conf: syscon@100000 {
> Please check syscon address.

0x100000 is the base address of the CTRL_MMR module. Could you please clarify
why the address is incorrect? The registers for J784S4 SoC can be viewed at:
https://www.ti.com/lit/zip/spruj52

> 
> Thanks,
> Achal Verma
>> +        compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
>> +        reg = <0x00 0x00100000 0x00 0x1c000>;
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +        ranges = <0x00 0x00 0x00100000 0x1c000>;
>> +
>> +        serdes_ln_ctrl: mux-controller@4080 {
>> +            compatible = "mmio-mux";
>> +            reg = <0x00004080 0x30>;
>> +            #mux-control-cells = <1>;
>> +            mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1
>> select */
>> +                    <0x4088 0x3>, <0x408c 0x3>, /* SERDES0 lane2/3 select */
>> +                    <0x4090 0x3>, <0x4094 0x3>, /* SERDES1 lane0/1 select */
>> +                    <0x4098 0x3>, <0x409c 0x3>, /* SERDES1 lane2/3 select */
>> +                    <0x40a0 0x3>, <0x40a4 0x3>, /* SERDES2 lane0/1 select */
>> +                    <0x40a8 0x3>, <0x40ac 0x3>; /* SERDES2 lane2/3 select */
>> +        };
>> +    };
>> +
>>       gic500: interrupt-controller@1800000 {
>>           compatible = "arm,gic-v3";
>>           #address-cells = <2>;

-- 
Regards,
Siddharth.
Re: [PATCH v4 1/5] arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux
Posted by Verma, Achal 2 years, 9 months ago 

On 5/15/2023 1:06 PM, Siddharth Vadapalli wrote:
> Achal,
> 
> On 15/05/23 11:25, Verma, Achal wrote:
>> Hi,
>>
>> On 4/25/2023 6:46 PM, Jayesh Choudhary wrote:
>>> From: Siddharth Vadapalli <s-vadapalli@ti.com>
>>>
>>> The system controller node manages the CTRL_MMR0 region.
>>> Add serdes_ln_ctrl node which is used for controlling the SERDES lane mux.
>>>
>>> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
>>> [j-choudhary@ti.com: Add reg property to fix dtc warning]
>>> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
>>> ---
>>>    arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 23 ++++++++++++++++++++++
>>>    1 file changed, 23 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>>> b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>>> index e9169eb358c1..29be6d28ee31 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
>>> @@ -5,6 +5,9 @@
>>>     * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
>>>     */
>>>    +#include <dt-bindings/mux/mux.h>
>>> +#include <dt-bindings/mux/ti-serdes.h>
>>> +
>>>    &cbass_main {
>>>        msmc_ram: sram@70000000 {
>>>            compatible = "mmio-sram";
>>> @@ -26,6 +29,26 @@ l3cache-sram@200000 {
>>>            };
>>>        };
>>>    +    scm_conf: syscon@100000 {
>> Please check syscon address.
> 
> 0x100000 is the base address of the CTRL_MMR module. Could you please clarify
> why the address is incorrect? The registers for J784S4 SoC can be viewed at:
> https://www.ti.com/lit/zip/spruj52
I got the doubt because of the address used in this [1] series was 
different. Now I realized that it was wrong and it got corrected in this 
patch. So yeah its clear now, 0x100000 is indeed the correct base address.

[1] 
https://serenity.dal.design.ti.com/patchwork/project/linux-patch-review/patch/20220927202534.17148-3-mranostay@ti.com/
> 
>>
>> Thanks,
>> Achal Verma
>>> +        compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
>>> +        reg = <0x00 0x00100000 0x00 0x1c000>;
>>> +        #address-cells = <1>;
>>> +        #size-cells = <1>;
>>> +        ranges = <0x00 0x00 0x00100000 0x1c000>;
>>> +
>>> +        serdes_ln_ctrl: mux-controller@4080 {
>>> +            compatible = "mmio-mux";
>>> +            reg = <0x00004080 0x30>;
>>> +            #mux-control-cells = <1>;
>>> +            mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1
>>> select */
>>> +                    <0x4088 0x3>, <0x408c 0x3>, /* SERDES0 lane2/3 select */
>>> +                    <0x4090 0x3>, <0x4094 0x3>, /* SERDES1 lane0/1 select */
>>> +                    <0x4098 0x3>, <0x409c 0x3>, /* SERDES1 lane2/3 select */
>>> +                    <0x40a0 0x3>, <0x40a4 0x3>, /* SERDES2 lane0/1 select */
>>> +                    <0x40a8 0x3>, <0x40ac 0x3>; /* SERDES2 lane2/3 select */
>>> +        };
>>> +    };
>>> +
>>>        gic500: interrupt-controller@1800000 {
>>>            compatible = "arm,gic-v3";
>>>            #address-cells = <2>;
>

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