[PATCH v3 0/3] Add initial support for Microchip SAMA7G54 Curiosity board

[PATCH v3 0/3] Add initial support for Microchip SAMA7G54 Curiosity board

[Mihai Sain]

This patch series adds initial support for Microchip SAMA7G54 Curiosity board.

Changes in v3:
--------------

* Update flexcom 10 node in order to match previous flexcom definitions.
* Use alphanumerical sorting in Makefile.
* Remove adc subnode from flx10 node.
* Use C style comment.

Changes in v2:
--------------

* Remove bootargs.
* Use phandle style for clock nodes.
* Use color and function for gpio-leds.
* Remove status okay from leds, nand, eeprom, pmic, flash.
* Use generic name like pmic for mcp16502 regulator.

Mihai Sain (3):
  dt-bindings: ARM: at91: Document Microchip SAMA7G54 Curiosity
  ARM: dts: microchip: sama7g5: Add flexcom 10 node
  ARM: dts: microchip: sama7g54_curiosity: Add initial device tree of the board

 .../devicetree/bindings/arm/atmel-at91.yaml   |   6 +
 arch/arm/boot/dts/microchip/Makefile          |   2 +
 .../dts/microchip/at91-sama7g54_curiosity.dts | 482 ++++++++++++++++++
 arch/arm/boot/dts/microchip/sama7g5.dtsi      |  24 +
 4 files changed, 514 insertions(+)
 create mode 100644 arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts

-- 
2.43.0


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[PATCH v3 1/3] dt-bindings: ARM: at91: Document Microchip SAMA7G54 Curiosity

[Mihai Sain]

Document device tree binding of the Microchip SAMA7G54 Curiosity board.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/arm/atmel-at91.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
index 89d75fbb1de4..82f37328cc69 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
@@ -179,6 +179,12 @@ properties:
           - const: microchip,sama7g5
           - const: microchip,sama7
 
+      - description: Microchip SAMA7G54 Curiosity Board
+        items:
+          - const: microchip,sama7g54-curiosity
+          - const: microchip,sama7g5
+          - const: microchip,sama7
+
       - description: Microchip LAN9662 Evaluation Boards.
         items:
           - enum:
-- 
2.43.0


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[PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[Mihai Sain]

Add flexcom 10 node for usage on the SAMA7G54 Curiosity board.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
---
 arch/arm/boot/dts/microchip/sama7g5.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
index 269e0a3ca269..c030b318985a 100644
--- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
+++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
@@ -958,6 +958,30 @@ i2c9: i2c@600 {
 			};
 		};
 
+		flx10: flexcom@e2820000 {
+			compatible = "atmel,sama5d2-flexcom";
+			reg = <0xe2820000 0x200>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 48>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0xe2820000 0x800>;
+			status = "disabled";
+
+			i2c10: i2c@600 {
+				compatible = "microchip,sama7g5-i2c", "microchip,sam9x60-i2c";
+				reg = <0x600 0x200>;
+				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				clocks = <&pmc PMC_TYPE_PERIPHERAL 48>;
+				atmel,fifo-size = <32>;
+				dmas = <&dma0 AT91_XDMAC_DT_PERID(26)>,
+					<&dma0 AT91_XDMAC_DT_PERID(25)>;
+				dma-names = "tx", "rx";
+				status = "disabled";
+			};
+		};
+
 		flx11: flexcom@e2824000 {
 			compatible = "atmel,sama5d2-flexcom";
 			reg = <0xe2824000 0x200>;
-- 
2.43.0


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Re: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[Conor Dooley]

[-- Attachment #1.1: Type: text/plain, Size: 1630 bytes --]

On Thu, Feb 15, 2024 at 11:15:23AM +0200, Mihai Sain wrote:
> Add flexcom 10 node for usage on the SAMA7G54 Curiosity board.
> 
> Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
> ---
>  arch/arm/boot/dts/microchip/sama7g5.dtsi | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> index 269e0a3ca269..c030b318985a 100644
> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> @@ -958,6 +958,30 @@ i2c9: i2c@600 {
>  			};
>  		};
>  
> +		flx10: flexcom@e2820000 {
> +			compatible = "atmel,sama5d2-flexcom";

My comment here was ignored:
https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/

> +			reg = <0xe2820000 0x200>;
> +			clocks = <&pmc PMC_TYPE_PERIPHERAL 48>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0xe2820000 0x800>;
> +			status = "disabled";
> +
> +			i2c10: i2c@600 {
> +				compatible = "microchip,sama7g5-i2c", "microchip,sam9x60-i2c";
> +				reg = <0x600 0x200>;
> +				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				clocks = <&pmc PMC_TYPE_PERIPHERAL 48>;
> +				atmel,fifo-size = <32>;
> +				dmas = <&dma0 AT91_XDMAC_DT_PERID(26)>,
> +					<&dma0 AT91_XDMAC_DT_PERID(25)>;
> +				dma-names = "tx", "rx";
> +				status = "disabled";
> +			};
> +		};
> +
>  		flx11: flexcom@e2824000 {
>  			compatible = "atmel,sama5d2-flexcom";
>  			reg = <0xe2824000 0x200>;
> -- 
> 2.43.0
> 

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RE: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[Mihai.Sain]

> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> index 269e0a3ca269..c030b318985a 100644
> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> @@ -958,6 +958,30 @@ i2c9: i2c@600 {
>  			};
>  		};
>  
> +		flx10: flexcom@e2820000 {
> +			compatible = "atmel,sama5d2-flexcom";

My comment here was ignored:
https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/

The SAMA7G5 has the same flexcom controller as SAMA5D2 MPU.

https://github.com/torvalds/linux/blob/master/drivers/mfd/atmel-flexcom.c#L83
https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt#L8
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Re: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[Alexandre Belloni]

On 16/02/2024 06:58:10+0000, Mihai.Sain@microchip.com wrote:
> > diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> > index 269e0a3ca269..c030b318985a 100644
> > --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
> > +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> > @@ -958,6 +958,30 @@ i2c9: i2c@600 {
> >  			};
> >  		};
> >  
> > +		flx10: flexcom@e2820000 {
> > +			compatible = "atmel,sama5d2-flexcom";
> 
> My comment here was ignored:
> https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/
> 
> The SAMA7G5 has the same flexcom controller as SAMA5D2 MPU.
> 

Still, it needs its own compatible plus a fallback to
atmel,sama5d2-flexcom

> https://github.com/torvalds/linux/blob/master/drivers/mfd/atmel-flexcom.c#L83
> https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt#L8

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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Re: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[claudiu beznea]

On 16.02.2024 09:56, Alexandre Belloni wrote:
> On 16/02/2024 06:58:10+0000, Mihai.Sain@microchip.com wrote:
>>> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
>>> index 269e0a3ca269..c030b318985a 100644
>>> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
>>> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
>>> @@ -958,6 +958,30 @@ i2c9: i2c@600 {
>>>  			};
>>>  		};
>>>  
>>> +		flx10: flexcom@e2820000 {
>>> +			compatible = "atmel,sama5d2-flexcom";
>>
>> My comment here was ignored:
>> https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/
>>
>> The SAMA7G5 has the same flexcom controller as SAMA5D2 MPU.
>>
> 
> Still, it needs its own compatible plus a fallback to
> atmel,sama5d2-flexcom

I agree with this. Though, flexcom documentation is subject to YAML
conversion (a patch has been re-posted these days [1] and *maybe* it will
be integrated this time). And there are multiple SoC DTs that need to be
updated with their own flexcom compatible (lan966x, sam9x60, sama7g5).

To avoid conflicting with the work at [1] and postponing this series we may
do the update after the [1] is done.

Let me know your thoughts. Either way is fine by me.

Thank you,
Claudiu Beznea

[1]
https://patchwork.kernel.org/project/linux-arm-kernel/patch/20240214-sama5d2-flexcom-yaml-v1-1-5dedd0eba08e@microchip.com/

> 
>> https://github.com/torvalds/linux/blob/master/drivers/mfd/atmel-flexcom.c#L83
>> https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt#L8
> 

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Re: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[Conor Dooley]

[-- Attachment #1.1: Type: text/plain, Size: 1853 bytes --]

On Fri, Feb 16, 2024 at 10:24:13AM +0200, claudiu beznea wrote:
> On 16.02.2024 09:56, Alexandre Belloni wrote:
> > On 16/02/2024 06:58:10+0000, Mihai.Sain@microchip.com wrote:
> >>> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> >>> index 269e0a3ca269..c030b318985a 100644
> >>> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
> >>> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> >>> @@ -958,6 +958,30 @@ i2c9: i2c@600 {
> >>>  			};
> >>>  		};
> >>>  
> >>> +		flx10: flexcom@e2820000 {
> >>> +			compatible = "atmel,sama5d2-flexcom";
> >>
> >> My comment here was ignored:
> >> https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/
> >>
> >> The SAMA7G5 has the same flexcom controller as SAMA5D2 MPU.
> >>
> > 
> > Still, it needs its own compatible plus a fallback to
> > atmel,sama5d2-flexcom
> 
> I agree with this. Though, flexcom documentation is subject to YAML
> conversion (a patch has been re-posted these days [1] and *maybe* it will
> be integrated this time). And there are multiple SoC DTs that need to be
> updated with their own flexcom compatible (lan966x, sam9x60, sama7g5).
> 
> To avoid conflicting with the work at [1] and postponing this series we may
> do the update after the [1] is done.
> 
> Let me know your thoughts. Either way is fine by me.

I'd be inclined to say that if we are gonna take a shortcut here, then
this patch should add a specific compatible so that when the yaml
conversion goes through you'll get a warning about this being
undocumented rather than silence.

A resend on the flexcom patch is required though, the rebase was not
done correctly, so maybe Balakrishnan could "atmel,sama7g5-flexcom"
add with a fallback to "atmel,sama5d2-flexcom" while they're fixing
it up?

Cheers,
Conor.

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Re: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[claudiu beznea]

On 16.02.2024 11:35, Conor Dooley wrote:
> On Fri, Feb 16, 2024 at 10:24:13AM +0200, claudiu beznea wrote:
>> On 16.02.2024 09:56, Alexandre Belloni wrote:
>>> On 16/02/2024 06:58:10+0000, Mihai.Sain@microchip.com wrote:
>>>>> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
>>>>> index 269e0a3ca269..c030b318985a 100644
>>>>> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
>>>>> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
>>>>> @@ -958,6 +958,30 @@ i2c9: i2c@600 {
>>>>>  			};
>>>>>  		};
>>>>>  
>>>>> +		flx10: flexcom@e2820000 {
>>>>> +			compatible = "atmel,sama5d2-flexcom";
>>>>
>>>> My comment here was ignored:
>>>> https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/
>>>>
>>>> The SAMA7G5 has the same flexcom controller as SAMA5D2 MPU.
>>>>
>>>
>>> Still, it needs its own compatible plus a fallback to
>>> atmel,sama5d2-flexcom
>>
>> I agree with this. Though, flexcom documentation is subject to YAML
>> conversion (a patch has been re-posted these days [1] and *maybe* it will
>> be integrated this time). And there are multiple SoC DTs that need to be
>> updated with their own flexcom compatible (lan966x, sam9x60, sama7g5).
>>
>> To avoid conflicting with the work at [1] and postponing this series we may
>> do the update after the [1] is done.
>>
>> Let me know your thoughts. Either way is fine by me.
> 
> I'd be inclined to say that if we are gonna take a shortcut here, then
> this patch should add a specific compatible so that when the yaml
> conversion goes through you'll get a warning about this being
> undocumented rather than silence.

All the flexcom nodes from all flexcom capable SoCs (including SAMA7G5)
have the same compatible introduced by Mihai.

I don't like the idea of updating only the DTSes, either update all DTSes
and documentation or do it as it is already done (with sama5d2 compatible).

> 
> A resend on the flexcom patch is required though, the rebase was not
> done correctly, so maybe Balakrishnan could "atmel,sama7g5-flexcom"
> add with a fallback to "atmel,sama5d2-flexcom" while they're fixing
> it up?

I agree, and DTSes should also be updated along with documentation.

With this we can go forward with this patch and avoid conflicting with work
that is currently in progress for flexcom.

Thank you,
Claudiu Beznea

> 
> Cheers,
> Conor.

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Re: [PATCH v3 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

[Conor Dooley]

[-- Attachment #1.1: Type: text/plain, Size: 2798 bytes --]

On Mon, Feb 19, 2024 at 08:45:45PM +0200, claudiu beznea wrote:
> 
> 
> On 16.02.2024 11:35, Conor Dooley wrote:
> > On Fri, Feb 16, 2024 at 10:24:13AM +0200, claudiu beznea wrote:
> >> On 16.02.2024 09:56, Alexandre Belloni wrote:
> >>> On 16/02/2024 06:58:10+0000, Mihai.Sain@microchip.com wrote:
> >>>>> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> >>>>> index 269e0a3ca269..c030b318985a 100644
> >>>>> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
> >>>>> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> >>>>> @@ -958,6 +958,30 @@ i2c9: i2c@600 {
> >>>>>  			};
> >>>>>  		};
> >>>>>  
> >>>>> +		flx10: flexcom@e2820000 {
> >>>>> +			compatible = "atmel,sama5d2-flexcom";
> >>>>
> >>>> My comment here was ignored:
> >>>> https://lore.kernel.org/all/20240214-robe-pregnancy-a1b056c9fe14@spud/
> >>>>
> >>>> The SAMA7G5 has the same flexcom controller as SAMA5D2 MPU.
> >>>>
> >>>
> >>> Still, it needs its own compatible plus a fallback to
> >>> atmel,sama5d2-flexcom
> >>
> >> I agree with this. Though, flexcom documentation is subject to YAML
> >> conversion (a patch has been re-posted these days [1] and *maybe* it will
> >> be integrated this time). And there are multiple SoC DTs that need to be
> >> updated with their own flexcom compatible (lan966x, sam9x60, sama7g5).
> >>
> >> To avoid conflicting with the work at [1] and postponing this series we may
> >> do the update after the [1] is done.
> >>
> >> Let me know your thoughts. Either way is fine by me.
> > 
> > I'd be inclined to say that if we are gonna take a shortcut here, then
> > this patch should add a specific compatible so that when the yaml
> > conversion goes through you'll get a warning about this being
> > undocumented rather than silence.
> 
> All the flexcom nodes from all flexcom capable SoCs (including SAMA7G5)
> have the same compatible introduced by Mihai.
> 
> I don't like the idea of updating only the DTSes, either update all DTSes
> and documentation or do it as it is already done (with sama5d2 compatible).
> 
> > 
> > A resend on the flexcom patch is required though, the rebase was not
> > done correctly, so maybe Balakrishnan could "atmel,sama7g5-flexcom"
> > add with a fallback to "atmel,sama5d2-flexcom" while they're fixing
> > it up?
> 
> I agree, and DTSes should also be updated along with documentation.

I'm biased, I'll almost never disagree with updating things to use
soc-specific compatibles...

> With this we can go forward with this patch and avoid conflicting with work
> that is currently in progress for flexcom.

I forgot to actually CC Balakrishnan, but Nicolas fortunately forwarded
it to them. They're added now though to make sure they see this.

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[PATCH v3 3/3] ARM: dts: microchip: sama7g54_curiosity: Add initial device tree of the board

[Mihai Sain]

Add initial device tree of the SAMA7G54 Curiosity board.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
---
 arch/arm/boot/dts/microchip/Makefile          |   2 +
 .../dts/microchip/at91-sama7g54_curiosity.dts | 482 ++++++++++++++++++
 2 files changed, 484 insertions(+)
 create mode 100644 arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts

diff --git a/arch/arm/boot/dts/microchip/Makefile b/arch/arm/boot/dts/microchip/Makefile
index efde9546c8f4..0c45c8d17468 100644
--- a/arch/arm/boot/dts/microchip/Makefile
+++ b/arch/arm/boot/dts/microchip/Makefile
@@ -11,6 +11,7 @@ DTC_FLAGS_at91-sama5d2_xplained := -@
 DTC_FLAGS_at91-sama5d3_eds := -@
 DTC_FLAGS_at91-sama5d3_xplained := -@
 DTC_FLAGS_at91-sama5d4_xplained := -@
+DTC_FLAGS_at91-sama7g54_curiosity := -@
 DTC_FLAGS_at91-sama7g5ek := -@
 dtb-$(CONFIG_SOC_AT91RM9200) += \
 	at91rm9200ek.dtb \
@@ -87,6 +88,7 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
 	at91-sama5d4ek.dtb \
 	at91-vinco.dtb
 dtb-$(CONFIG_SOC_SAMA7G5) += \
+	at91-sama7g54_curiosity.dtb \
 	at91-sama7g5ek.dtb
 
 dtb-$(CONFIG_SOC_LAN966) += \
diff --git a/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts
new file mode 100644
index 000000000000..4f609e9e510e
--- /dev/null
+++ b/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts
@@ -0,0 +1,482 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * at91-sama7g54_curiosity.dts - Device Tree file for SAMA7G54 Curiosity Board
+ *
+ * Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Mihai Sain <mihai.sain@microchip.com>
+ *
+ */
+/dts-v1/;
+#include "sama7g5-pinfunc.h"
+#include "sama7g5.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/mfd/atmel-flexcom.h>
+#include <dt-bindings/pinctrl/at91.h>
+
+/ {
+	model = "Microchip SAMA7G54 Curiosity";
+	compatible = "microchip,sama7g54-curiosity", "microchip,sama7g5", "microchip,sama7";
+
+	aliases {
+		serial0 = &uart3;
+		i2c0 = &i2c10;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_key_gpio_default>;
+
+		button-user {
+			label = "user-button";
+			gpios = <&pioA PIN_PD19 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_PROG1>;
+			wakeup-source;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_led_gpio_default>;
+
+		led-red {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_POWER;
+			gpios = <&pioA PIN_PD13 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_BOOT;
+			gpios = <&pioA PIN_PD14 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-blue {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_CPU;
+			gpios = <&pioA PIN_PB15 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	memory@60000000 {
+		device_type = "memory";
+		reg = <0x60000000 0x10000000>; /* 256 MiB DDR3L-1066 16-bit */
+	};
+};
+
+&adc {
+	vddana-supply = <&vddout25>;
+	vref-supply = <&vddout25>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_mikrobus1_an_default &pinctrl_mikrobus2_an_default>;
+	status = "okay";
+};
+
+&cpu0 {
+	cpu-supply = <&vddcpu>;
+};
+
+&dma0 {
+	status = "okay";
+};
+
+&dma1 {
+	status = "okay";
+};
+
+&dma2 {
+	status = "okay";
+};
+
+&ebi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_nand_default>;
+	status = "okay";
+
+	nand_controller: nand-controller {
+		status = "okay";
+
+		nand@3 {
+			reg = <0x3 0x0 0x800000>;
+			atmel,rb = <0>;
+			nand-bus-width = <8>;
+			nand-ecc-mode = "hw";
+			nand-ecc-strength = <8>;
+			nand-ecc-step-size = <512>;
+			nand-on-flash-bbt;
+			label = "nand";
+
+			partitions {
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				at91bootstrap@0 {
+					label = "nand: at91bootstrap";
+					reg = <0x0 0x40000>;
+				};
+
+				bootloader@40000 {
+					label = "nand: u-boot";
+					reg = <0x40000 0x100000>;
+				};
+
+				bootloaderenv@140000 {
+					label = "nand: u-boot env";
+					reg = <0x140000 0x40000>;
+				};
+
+				dtb@180000 {
+					label = "nand: device tree";
+					reg = <0x180000 0x80000>;
+				};
+
+				kernel@200000 {
+					label = "nand: kernel";
+					reg = <0x200000 0x600000>;
+				};
+
+				rootfs@800000 {
+					label = "nand: rootfs";
+					reg = <0x800000 0x1f800000>;
+				};
+			};
+		};
+	};
+};
+
+&flx3 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+	status = "okay";
+
+	uart3: serial@200 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_flx3_default>;
+		status = "okay";
+	};
+};
+
+&flx10 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+	status = "okay";
+
+	i2c10: i2c@600 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_flx10_default>;
+		i2c-analog-filter;
+		i2c-digital-filter;
+		i2c-digital-filter-width-ns = <35>;
+		status = "okay";
+
+		eeprom@51 {
+			compatible = "atmel,24c02";
+			reg = <0x51>;
+			pagesize = <16>;
+			size = <256>;
+			vcc-supply = <&vdd_3v3>;
+		};
+
+		pmic@5b {
+			compatible = "microchip,mcp16502";
+			reg = <0x5b>;
+
+			regulators {
+				vdd_3v3: VDD_IO {
+					regulator-name = "VDD_IO";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-initial-mode = <2>;
+					regulator-allowed-modes = <2>, <4>;
+					regulator-always-on;
+
+					regulator-state-standby {
+						regulator-on-in-suspend;
+						regulator-suspend-microvolt = <3300000>;
+						regulator-mode = <4>;
+					};
+
+					regulator-state-mem {
+						regulator-off-in-suspend;
+						regulator-mode = <4>;
+					};
+				};
+
+				vddioddr: VDD_DDR {
+					regulator-name = "VDD_DDR";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-initial-mode = <2>;
+					regulator-allowed-modes = <2>, <4>;
+					regulator-always-on;
+
+					regulator-state-standby {
+						regulator-on-in-suspend;
+						regulator-suspend-microvolt = <1350000>;
+						regulator-mode = <4>;
+					};
+
+					regulator-state-mem {
+						regulator-on-in-suspend;
+						regulator-suspend-microvolt = <1350000>;
+						regulator-mode = <4>;
+					};
+				};
+
+				vddcore: VDD_CORE {
+					regulator-name = "VDD_CORE";
+					regulator-min-microvolt = <1150000>;
+					regulator-max-microvolt = <1150000>;
+					regulator-initial-mode = <2>;
+					regulator-allowed-modes = <2>, <4>;
+					regulator-always-on;
+
+					regulator-state-standby {
+						regulator-on-in-suspend;
+						regulator-suspend-voltage = <1150000>;
+						regulator-mode = <4>;
+					};
+
+					regulator-state-mem {
+						regulator-off-in-suspend;
+						regulator-mode = <4>;
+					};
+				};
+
+				vddcpu: VDD_OTHER {
+					regulator-name = "VDD_OTHER";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-initial-mode = <2>;
+					regulator-allowed-modes = <2>, <4>;
+					regulator-ramp-delay = <3125>;
+					regulator-always-on;
+
+					regulator-state-standby {
+						regulator-on-in-suspend;
+						regulator-suspend-voltage = <1050000>;
+						regulator-mode = <4>;
+					};
+
+					regulator-state-mem {
+						regulator-off-in-suspend;
+						regulator-mode = <4>;
+					};
+				};
+
+				vldo1: LDO1 {
+					regulator-name = "LDO1";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+
+					regulator-state-standby {
+						regulator-suspend-voltage = <1800000>;
+						regulator-on-in-suspend;
+					};
+
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
+				};
+
+				vldo2: LDO2 {
+					regulator-name = "LDO2";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+
+					regulator-state-standby {
+						regulator-suspend-voltage = <3300000>;
+						regulator-on-in-suspend;
+					};
+
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
+				};
+			};
+		};
+	};
+};
+
+&main_xtal {
+	clock-frequency = <24000000>;
+};
+
+&qspi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_qspi1_default>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0x0>;
+		spi-max-frequency = <100000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+		m25p,fast-read;
+	};
+};
+
+&pioA {
+	pinctrl_flx3_default: flx3-default {
+		pinmux = <PIN_PD16__FLEXCOM3_IO0>,
+			 <PIN_PD17__FLEXCOM3_IO1>;
+		bias-pull-up;
+	};
+
+	pinctrl_flx10_default: flx10-default {
+		pinmux = <PIN_PC30__FLEXCOM10_IO0>,
+			 <PIN_PC31__FLEXCOM10_IO1>;
+		bias-pull-up;
+	};
+
+	pinctrl_key_gpio_default: key-gpio-default {
+		pinmux = <PIN_PD19__GPIO>;
+		bias-pull-up;
+	};
+
+	pinctrl_led_gpio_default: led-gpio-default {
+		pinmux = <PIN_PD13__GPIO>,
+			 <PIN_PD14__GPIO>,
+			 <PIN_PB15__GPIO>;
+		bias-pull-up;
+	};
+
+	pinctrl_mikrobus1_an_default: mikrobus1-an-default {
+		pinmux = <PIN_PC15__GPIO>;
+		bias-disable;
+	};
+
+	pinctrl_mikrobus2_an_default: mikrobus2-an-default {
+		pinmux = <PIN_PC13__GPIO>;
+		bias-disable;
+	};
+
+	pinctrl_nand_default: nand-default {
+		pinmux = <PIN_PD9__D0>,
+			 <PIN_PD10__D1>,
+			 <PIN_PD11__D2>,
+			 <PIN_PC21__D3>,
+			 <PIN_PC22__D4>,
+			 <PIN_PC23__D5>,
+			 <PIN_PC24__D6>,
+			 <PIN_PD2__D7>,
+			 <PIN_PD3__NANDRDY>,
+			 <PIN_PD4__NCS3_NANDCS>,
+			 <PIN_PD5__NWE_NWR0_NANDWE>,
+			 <PIN_PD6__NRD_NANDOE>,
+			 <PIN_PD7__A21_NANDALE>,
+			 <PIN_PD8__A22_NANDCLE>;
+		bias-disable;
+		slew-rate = <0>;
+	};
+
+	pinctrl_qspi1_default: qspi1-default {
+		pinmux = <PIN_PB22__QSPI1_IO3>,
+			 <PIN_PB23__QSPI1_IO2>,
+			 <PIN_PB24__QSPI1_IO1>,
+			 <PIN_PB25__QSPI1_IO0>,
+			 <PIN_PB26__QSPI1_CS>,
+			 <PIN_PB27__QSPI1_SCK>;
+		bias-pull-up;
+		slew-rate = <0>;
+	};
+
+	pinctrl_sdmmc0_default: sdmmc0-default {
+		pinmux = <PIN_PA0__SDMMC0_CK>,
+			 <PIN_PA1__SDMMC0_CMD>,
+			 <PIN_PA2__SDMMC0_RSTN>,
+			 <PIN_PA3__SDMMC0_DAT0>,
+			 <PIN_PA4__SDMMC0_DAT1>,
+			 <PIN_PA5__SDMMC0_DAT2>,
+			 <PIN_PA6__SDMMC0_DAT3>;
+		bias-pull-up;
+		slew-rate = <0>;
+	};
+
+	pinctrl_sdmmc1_default: sdmmc1-default {
+		pinmux = <PIN_PB29__SDMMC1_CMD>,
+			 <PIN_PB30__SDMMC1_CK>,
+			 <PIN_PB31__SDMMC1_DAT0>,
+			 <PIN_PC0__SDMMC1_DAT1>,
+			 <PIN_PC1__SDMMC1_DAT2>,
+			 <PIN_PC2__SDMMC1_DAT3>,
+			 <PIN_PC4__SDMMC1_CD>;
+		bias-pull-up;
+		slew-rate = <0>;
+	};
+};
+
+&rtt {
+	atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
+};
+
+/* M.2 slot for wireless card */
+&sdmmc0 {
+	bus-width = <4>;
+	cd-gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
+	disable-wp;
+	sdhci-caps-mask = <0x0 0x00200000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_3v3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdmmc0_default>;
+	status = "okay";
+};
+
+/* micro SD socket */
+&sdmmc1 {
+	bus-width = <4>;
+	disable-wp;
+	sdhci-caps-mask = <0x0 0x00200000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_3v3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdmmc1_default>;
+	status = "okay";
+};
+
+&slow_xtal {
+	clock-frequency = <32768>;
+};
+
+&shdwc {
+	debounce-delay-us = <976>;
+	status = "okay";
+
+	input@0 {
+		reg = <0>;
+	};
+};
+
+&tcb0 {
+	timer0: timer@0 {
+		compatible = "atmel,tcb-timer";
+		reg = <0>;
+	};
+
+	timer1: timer@1 {
+		compatible = "atmel,tcb-timer";
+		reg = <1>;
+	};
+};
+
+&trng {
+	status = "okay";
+};
+
+&vddout25 {
+	vin-supply = <&vdd_3v3>;
+	status = "okay";
+};
-- 
2.43.0


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Re: [PATCH v3 0/3] Add initial support for Microchip SAMA7G54 Curiosity board

[claudiu beznea]

On 15.02.2024 11:15, Mihai Sain wrote:
> This patch series adds initial support for Microchip SAMA7G54 Curiosity board.
> 
> Changes in v3:
> --------------
> 
> * Update flexcom 10 node in order to match previous flexcom definitions.
> * Use alphanumerical sorting in Makefile.
> * Remove adc subnode from flx10 node.
> * Use C style comment.
> 
> Changes in v2:
> --------------
> 
> * Remove bootargs.
> * Use phandle style for clock nodes.
> * Use color and function for gpio-leds.
> * Remove status okay from leds, nand, eeprom, pmic, flash.
> * Use generic name like pmic for mcp16502 regulator.
> 
> Mihai Sain (3):
>   dt-bindings: ARM: at91: Document Microchip SAMA7G54 Curiosity
>   ARM: dts: microchip: sama7g5: Add flexcom 10 node
>   ARM: dts: microchip: sama7g54_curiosity: Add initial device tree of the board

Applied to at91-dt, thanks!


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