[PATCH v3 35/42] ARM: dts: ep93xx: add ts7250 board

[Krzysztof Kozlowski]

On 20/07/2023 13:29, Nikita Shubin via B4 Relay wrote:
> From: Nikita Shubin <nikita.shubin at maquefel.me>
> 
> Add device tree file for Technologic Systems ts7250 board and
> Liebherr bk3 board which have many in common, both are based on
> ep9302 SoC variant.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin at maquefel.me>
> ---
>  arch/arm/boot/dts/cirrus/Makefile          |   3 +
>  arch/arm/boot/dts/cirrus/ep93xx-bk3.dts    | 126 +++++++++++++++++++++++++
>  arch/arm/boot/dts/cirrus/ep93xx-ts7250.dts | 145 +++++++++++++++++++++++++++++
>  3 files changed, 274 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/cirrus/Makefile b/arch/arm/boot/dts/cirrus/Makefile
> index e944d3e2129d..211a7e2f2115 100644
> --- a/arch/arm/boot/dts/cirrus/Makefile
> +++ b/arch/arm/boot/dts/cirrus/Makefile
> @@ -3,3 +3,6 @@ dtb-$(CONFIG_ARCH_CLPS711X) += \
>  	ep7211-edb7211.dtb
>  dtb-$(CONFIG_ARCH_CLPS711X) += \
>  	ep7211-edb7211.dtb
> +dtb-$(CONFIG_ARCH_EP93XX) += \
> +	ep93xx-bk3.dtb \
> +	ep93xx-ts7250.dtb
> diff --git a/arch/arm/boot/dts/cirrus/ep93xx-bk3.dts b/arch/arm/boot/dts/cirrus/ep93xx-bk3.dts
> new file mode 100644
> index 000000000000..91d76a1a8571
> --- /dev/null
> +++ b/arch/arm/boot/dts/cirrus/ep93xx-bk3.dts
> @@ -0,0 +1,126 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree file for Liebherr controller BK3.1 based on Cirrus EP9302 SoC
> + */
> +/dts-v1/;
> +#include "ep93xx.dtsi"
> +
> +/ {
> +	model = "Liebherr controller BK3.1";
> +	compatible = "liebherr,bk3", "cirrus,ep9301";
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	chosen {
> +	};
> +
> +	memory at 0 {
> +		device_type = "memory";
> +		/* should be set from ATAGS */
> +		reg = <0x00000000 0x02000000>,
> +		      <0x000530c0 0x01fdd000>;
> +	};
> +
> +	nand-controller at 60000000 {
> +		compatible = "technologic,ts7200-nand";
> +		reg = <0x60000000 0x8000000>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		nand at 0 {
> +			reg = <0>;
> +			partitions {
> +				compatible = "fixed-partitions";
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +
> +				partition at 0 {
> +					label = "System";
> +					reg = <0x00000000 0x01e00000>;
> +					read-only;
> +				};
> +
> +				partition at 1e00000 {
> +					label = "Data";
> +					reg = <0x01e00000 0x05f20000>;
> +				};
> +
> +				partition at 7d20000 {
> +					label = "RedBoot";
> +					reg = <0x07d20000 0x002e0000>;
> +					read-only;
> +				};
> +			};
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		led-0 {
> +			label = "grled";
> +			gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +			function = LED_FUNCTION_HEARTBEAT;
> +		};
> +
> +		led-1 {
> +			label = "rdled";
> +			gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
> +			function = LED_FUNCTION_FAULT;
> +		};
> +	};
> +};
> +
> +&eth0 {
> +	phy-handle = <&phy0>;
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +};
> +
> +&i2s {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2s_on_ac97_pins>;
> +	status = "okay";
> +};
> +
> +&gpio1 {
> +	/* PWM */
> +	gpio-ranges = <&pinctrl 6 163 1>;
> +};
> +
> +&gpio4 {
> +	gpio-ranges = <&pinctrl 0 97 2>;
> +	status = "okay";
> +};
> +
> +&gpio6 {
> +	gpio-ranges = <&pinctrl 0 87 2>;
> +	status = "okay";
> +};
> +
> +&gpio7 {
> +	gpio-ranges = <&pinctrl 2 199 4>;
> +	status = "okay";
> +};
> +
> +&mdio0 {
> +	phy0: ethernet-phy at 1 {
> +		reg = <1>;
> +		device_type = "ethernet-phy";
> +	};
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> +
> +&uart1 {
> +	status = "okay";
> +};
> +
> +&usb0 {
> +	status = "okay";
> +};
> +
> diff --git a/arch/arm/boot/dts/cirrus/ep93xx-ts7250.dts b/arch/arm/boot/dts/cirrus/ep93xx-ts7250.dts
> new file mode 100644
> index 000000000000..625202f8cd25
> --- /dev/null
> +++ b/arch/arm/boot/dts/cirrus/ep93xx-ts7250.dts
> @@ -0,0 +1,145 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree file for Technologic Systems ts7250 board based on Cirrus EP9302 SoC
> + */
> +/dts-v1/;
> +#include "ep93xx.dtsi"
> +#include <dt-bindings/dma/cirrus,ep93xx-dma.h>
> +
> +/ {
> +	compatible = "technologic,ts7250", "cirrus,ep9301";
> +	model = "TS-7250 SBC";
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	chosen {
> +	};
> +
> +	memory at 0 {
> +		device_type = "memory";
> +		/* should be set from ATAGS */
> +		reg = <0x00000000 0x02000000>,
> +		      <0x000530c0 0x01fdd000>;
> +	};
> +
> +	nand-controller at 60000000 {

Where is this address? It does not work like that. If this is part of
SoC, then should be in DTSI and part of soc node. If not, then it is
some other bus which needs some description. Top-level is not a bus.

You should see errors when testing dtbs with W=1.


> +		compatible = "technologic,ts7200-nand";
> +		reg = <0x60000000 0x8000000>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		nand at 0 {
> +			reg = <0>;
> +			partitions {
> +				compatible = "fixed-partitions";
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +
> +				partition at 0 {
> +					label = "TS-BOOTROM";
> +					reg = <0x00000000 0x00020000>;
> +					read-only;
> +				};
> +
> +				partition at 20000 {
> +					label = "Linux";
> +					reg = <0x00020000 0x07d00000>;
> +				};
> +
> +				partition at 7d20000 {
> +					label = "RedBoot";
> +					reg = <0x07d20000 0x002e0000>;
> +					read-only;
> +				};
> +			};
> +		};
> +	};
> +
> +	rtc1: rtc at 10800000 {

Same problems

> +		compatible = "st,m48t86";
> +		reg = <0x10800000 0x1>,
> +		      <0x11700000 0x1>;
> +	};
> +
> +	watchdog1: watchdog at 23800000 {

Same problems

> +		compatible = "technologic,ts7200-wdt";
> +		reg = <0x23800000 0x01>,
> +		      <0x23c00000 0x01>;
> +		timeout-sec = <30>;
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		led-0 {
> +			label = "grled";
> +			gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +			function = LED_FUNCTION_HEARTBEAT;
> +		};
> +
> +		led-1 {
> +			label = "rdled";
> +			gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
> +			function = LED_FUNCTION_FAULT;
> +		};
> +	};
> +};
> +
> +&eth0 {
> +	phy-handle = <&phy0>;
> +};
> +
> +&gpio1 {
> +	/* PWM */
> +	gpio-ranges = <&pinctrl 6 163 1>;
> +};
> +
> +&gpio4 {
> +	gpio-ranges = <&pinctrl 0 97 2>;
> +	status = "okay";
> +};
> +
> +&gpio6 {
> +	gpio-ranges = <&pinctrl 0 87 2>;
> +	status = "okay";
> +};
> +
> +&gpio7 {
> +	gpio-ranges = <&pinctrl 2 199 4>;
> +	status = "okay";
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +};
> +
> +&spi0 {
> +	cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
> +	dmas = <&dma1 EP93XX_DMA_SSP>;
> +	status = "okay";
> +
> +	tmp122_spi: tmp122 at 0 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +		compatible = "ti,tmp122";
> +		reg = <0>;
> +		spi-max-frequency = <2000000>;
> +	};
> +};
> +


Best regards,
Krzysztof