[PATCH v3 2/3] arm64: dts: freescale: add i.MX95 basic dtsi

Alexander Stein alexander.stein at ew.tq-group.com
Mon Apr 29 00:57:19 PDT 2024


Hi Peng,

thanks for your patch.

Am Sonntag, 28. April 2024, 14:22:20 CEST schrieb Peng Fan (OSS):
> From: Peng Fan <peng.fan at nxp.com>
> 
> i.MX95 features 6 A55 Cores, ARM Mali GPU, ISP, ML acceleration NPU,
> and Edgelock secure enclave security. This patch is to add a minimal
> dtsi, with cpu cores, coresight, scmi, gic, uart, mu, sdhc, lpi2c added.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx95-clock.h |  187 +++++
>  arch/arm64/boot/dts/freescale/imx95-power.h |   55 ++
>  arch/arm64/boot/dts/freescale/imx95.dtsi    | 1152 +++++++++++++++++++++++++++
>  3 files changed, 1394 insertions(+)
> 
> [snip]
> diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
> new file mode 100644
> index 000000000000..f52023ec7f0c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
> [snip]
> +	soc {
> +		compatible = "simple-bus";
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		aips2: bus at 42000000 {
> +			compatible = "fsl,aips-bus", "simple-bus";
> +			reg = <0x0 0x42000000 0x0 0x800000>;
> +			ranges = <0x42000000 0x0 0x42000000 0x8000000>,
> +				 <0x28000000 0x0 0x28000000 0x10000000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			mu7: mailbox at 42430000 {
> +				compatible = "fsl,imx95-mu";
> +				reg = <0x42430000 0x10000>;
> +				interrupts = <GIC_SPI 234 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +				#mbox-cells = <2>;
> +				status = "disabled";
> +			};
> +
> +			mu8: mailbox at 42730000 {

Please sort all nodes by address.

> +				compatible = "fsl,imx95-mu";
> +				reg = <0x42730000 0x10000>;
> +				interrupts = <GIC_SPI 235 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +				#mbox-cells = <2>;
> +				status = "disabled";
> +			};
> +
> +			wdog3: watchdog at 42490000 {
> +				compatible = "fsl,imx93-wdt";
> +				reg = <0x42490000 0x10000>;
> +				interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +				timeout-sec = <40>;
> +				fsl,ext-reset-output;

Isn't this board specific?

> +				status = "disabled";
> +			};
> +
> +			tpm3: pwm at 424e0000 {
> +				compatible = "fsl,imx7ulp-pwm";
> +				reg = <0x424e0000 0x1000>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +				#pwm-cells = <3>;
> +				status = "disabled";
> +			};
> [snip]
> +		};
> +
> +		aips3: bus at 42800000 {
> +			compatible = "fsl,aips-bus", "simple-bus";
> +			reg = <0 0x42800000 0 0x800000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x42800000 0x0 0x42800000 0x800000>;
> +
> +			usdhc1: mmc at 42850000 {
> +				compatible = "fsl,imx95-usdhc", "fsl,imx8mm-usdhc";
> +				reg = <0x42850000 0x10000>;
> +				interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +					 <&scmi_clk IMX95_CLK_WAKEUPAXI>,
> +					 <&scmi_clk IMX95_CLK_USDHC1>;
> +				clock-names = "ipg", "ahb", "per";
> +				assigned-clocks = <&scmi_clk IMX95_CLK_USDHC1>;
> +				assigned-clock-parents = <&scmi_clk IMX95_CLK_SYSPLL1_PFD1>;
> +				assigned-clock-rates = <400000000>;
> +				bus-width = <8>;
> +				fsl,tuning-start-tap = <1>;
> +				fsl,tuning-step= <2>;

Isn't this board specific? Or is there a hardware limitation?

> +				status = "disabled";
> +			};
> +
> +			usdhc2: mmc at 42860000 {
> +				compatible = "fsl,imx95-usdhc", "fsl,imx8mm-usdhc";
> +				reg = <0x42860000 0x10000>;
> +				interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +					 <&scmi_clk IMX95_CLK_WAKEUPAXI>,
> +					 <&scmi_clk IMX95_CLK_USDHC2>;
> +				clock-names = "ipg", "ahb", "per";
> +				assigned-clocks = <&scmi_clk IMX95_CLK_USDHC2>;
> +				assigned-clock-parents = <&scmi_clk IMX95_CLK_SYSPLL1_PFD1>;
> +				assigned-clock-rates = <200000000>;

Why is usdhc2 only 200 MHz but usdhc1 400 MHz?

> +				bus-width = <4>;
> +				fsl,tuning-start-tap = <1>;
> +				fsl,tuning-step= <2>;

Isn't this board specific? Or is there a hardware limitation?

> +				status = "disabled";
> +			};
> +
> +			usdhc3: mmc at 428b0000 {
> +				compatible = "fsl,imx95-usdhc", "fsl,imx8mm-usdhc";
> +				reg = <0x428b0000 0x10000>;
> +				interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +					 <&scmi_clk IMX95_CLK_WAKEUPAXI>,
> +					 <&scmi_clk IMX95_CLK_USDHC3>;
> +				clock-names = "ipg", "ahb", "per";

No need to configure IMX95_CLK_USDHC3?

> +				bus-width = <4>;
> +				fsl,tuning-start-tap = <1>;
> +				fsl,tuning-step= <2>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		gpio2: gpio at 43810000 {
> +			compatible = "fsl,imx95-gpio", "fsl,imx8ulp-gpio";
> +			reg = <0x0 0x43810000 0x0 0x1000>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +			clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +				 <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +			clock-names = "gpio", "port";
> +		};
> +
> +		gpio3: gpio at 43820000 {
> +			compatible = "fsl,imx95-gpio", "fsl,imx8ulp-gpio";
> +			reg = <0x0 0x43820000 0x0 0x1000>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +			clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +				 <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +			clock-names = "gpio", "port";
> +		};
> +
> +		gpio4: gpio at 43840000 {
> +			compatible = "fsl,imx95-gpio", "fsl,imx8ulp-gpio";
> +			reg = <0x0 0x43840000 0x0 0x1000>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +			clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +				 <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +			clock-names = "gpio", "port";
> +		};
> +
> +		gpio5: gpio at 43850000 {
> +			compatible = "fsl,imx95-gpio", "fsl,imx8ulp-gpio";
> +			reg = <0x0 0x43850000 0x0 0x1000>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +			clocks = <&scmi_clk IMX95_CLK_BUSWAKEUP>,
> +				 <&scmi_clk IMX95_CLK_BUSWAKEUP>;
> +			clock-names = "gpio", "port";
> +		};
> +
> +		aips1: bus at 44000000 {
> +			compatible = "fsl,aips-bus", "simple-bus";
> +			reg = <0x0 0x44000000 0x0 0x800000>;
> +			ranges = <0x44000000 0x0 0x44000000 0x800000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			mu1: mailbox at 44220000 {
> +				compatible = "fsl,imx95-mu";
> +				reg = <0x44220000 0x10000>;
> +				interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSAON>;
> +				#mbox-cells = <2>;
> +				status = "disabled";
> +			};
> +
> +			mu2: mailbox at 445b0000 {
> +				compatible = "fsl,imx95-mu";
> +				reg = <0x445b0000 0x1000>;
> +				ranges;
> +				interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>;
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +				#mbox-cells = <2>;
> +
> +				sram0: sram at 445b1000 {
> +					compatible = "mmio-sram";
> +					reg = <0x445b1000 0x400>;
> +					ranges = <0x0 0x445b1000 0x400>;
> +					#address-cells = <1>;
> +					#size-cells = <1>;
> +
> +					scmi_buf0: scmi-sram-section at 0 {
> +						compatible = "arm,scmi-shmem";
> +						reg = <0x0 0x80>;
> +					};
> +
> +					scmi_buf1: scmi-sram-section at 80 {
> +						compatible = "arm,scmi-shmem";
> +						reg = <0x80 0x80>;
> +					};
> +				};

I guess this MU depends on the system manager firmware, no?

> +			};
> +
> +			mu3: mailbox at 445d0000 {
> +				compatible = "fsl,imx95-mu";
> +				reg = <0x445d0000 0x10000>;
> +				interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSAON>;
> +				#mbox-cells = <2>;
> +				status = "disabled";
> +			};
> +
> +			mu4: mailbox at 445f0000 {
> +				compatible = "fsl,imx95-mu";
> +				reg = <0x445f0000 0x10000>;
> +				interrupts = <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSAON>;
> +				#mbox-cells = <2>;
> +				status = "disabled";
> +			};
> +
> +			mu6: mailbox at 44630000 {
> +				compatible = "fsl,imx95-mu";
> +				reg = <0x44630000 0x10000>;
> +				interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSAON>;
> +				#mbox-cells = <2>;
> +				status = "disabled";
> +			};
> +
> +			tpm1: pwm at 44310000 {
> +				compatible = "fsl,imx7ulp-pwm";
> +				reg = <0x44310000 0x1000>;
> +				clocks = <&scmi_clk IMX95_CLK_BUSAON>;
> +				#pwm-cells = <3>;
> +				status = "disabled";
> +			};
> +
> +			tpm2: pwm at 44320000 {
> +				compatible = "fsl,imx7ulp-pwm";
> +				reg = <0x44320000 0x1000>;
> +				clocks = <&scmi_clk IMX95_CLK_TPM2>;
> +				#pwm-cells = <3>;
> +				status = "disabled";
> +			};
> +
> +			lpi2c1: i2c at 44340000 {
> +				compatible = "fsl,imx95-lpi2c", "fsl,imx7ulp-lpi2c";
> +				reg = <0x44340000 0x10000>;
> +				interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_LPI2C1>,
> +					 <&scmi_clk IMX95_CLK_BUSAON>;
> +				clock-names = "per", "ipg";
> +				status = "disabled";
> +			};
> +
> +			lpi2c2: i2c at 44350000 {
> +				compatible = "fsl,imx95-lpi2c", "fsl,imx7ulp-lpi2c";
> +				reg = <0x44350000 0x10000>;
> +				interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_LPI2C2>,
> +					 <&scmi_clk IMX95_CLK_BUSAON>;
> +				clock-names = "per", "ipg";
> +				status = "disabled";
> +			};
> +
> +			lpspi1: spi at 44360000 {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				compatible = "fsl,imx95-spi", "fsl,imx7ulp-spi";
> +				reg = <0x44360000 0x10000>;
> +				interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_LPSPI1>,
> +					 <&scmi_clk IMX95_CLK_BUSAON>;
> +				clock-names = "per", "ipg";
> +				status = "disabled";
> +			};
> +
> +			lpspi2: spi at 44370000 {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				compatible = "fsl,imx95-spi", "fsl,imx7ulp-spi";
> +				reg = <0x44370000 0x10000>;
> +				interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_LPSPI2>,
> +					 <&scmi_clk IMX95_CLK_BUSAON>;
> +				clock-names = "per", "ipg";
> +				status = "disabled";
> +			};
> +
> +			lpuart1: serial at 44380000 {
> +				compatible = "fsl,imx95-lpuart", "fsl,imx8ulp-lpuart",
> +					     "fsl,imx7ulp-lpuart";
> +				reg = <0x44380000 0x1000>;
> +				interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_LPUART1>;
> +				clock-names = "ipg";
> +				status = "disabled";
> +			};
> +
> +			lpuart2: serial at 44390000 {
> +				compatible = "fsl,imx95-lpuart", "fsl,imx8ulp-lpuart",
> +					     "fsl,imx7ulp-lpuart";
> +				reg = <0x44390000 0x1000>;
> +				interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_LPUART2>;
> +				clock-names = "ipg";
> +				status = "disabled";
> +			};
> +
> +			adc1: adc at 44530000 {
> +				compatible = "nxp,imx93-adc";
> +				reg = <0x44530000 0x10000>;
> +				interrupts = <GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>,
> +					     <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>,
> +					     <GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&scmi_clk IMX95_CLK_ADC>;
> +				clock-names = "ipg";
> +				status = "disabled";
> +			};

Please sort the nodes by address.

> +		};
> +
> +		aips4: bus at 49000000 {
> +			compatible = "fsl,aips-bus", "simple-bus";
> +			reg = <0x0 0x49000000 0x0 0x800000>;
> +			ranges = <0x49000000 0x0 0x49000000 0x800000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			smmu: iommu at 490d0000 {
> +				compatible = "arm,smmu-v3";
> +				reg = <0x490d0000 0x100000>;
> +				interrupts = <GIC_SPI 325 IRQ_TYPE_EDGE_RISING>,
> +					     <GIC_SPI 328 IRQ_TYPE_EDGE_RISING>,
> +					     <GIC_SPI 334 IRQ_TYPE_EDGE_RISING>,
> +					     <GIC_SPI 326 IRQ_TYPE_EDGE_RISING>;
> +				interrupt-names = "eventq", "gerror", "priq", "cmdq-sync";
> +				#iommu-cells = <1>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		gpio1: gpio at 47400000 {
> +			compatible = "fsl,imx95-gpio", "fsl,imx8ulp-gpio";
> +			reg = <0x0 0x47400000 0x0 0x1000>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +			clocks = <&scmi_clk IMX95_CLK_M33>,
> +				 <&scmi_clk IMX95_CLK_M33>;
> +			clock-names = "gpio", "port";
> +			status = "disabled";

I'm wondering of there should be a comment here that gpio1 usually is under
exclusive control of SM.

> +		};
> +
> +		elemu0: mailbox at 47520000 {
> +			compatible = "fsl,imx95-mu-ele";
> +			reg = <0x0 0x47520000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +			status = "disabled";
> +		};
> +
> +		elemu1: mailbox at 47530000 {
> +			compatible = "fsl,imx95-mu-ele";
> +			reg = <0x0 0x47530000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +			status = "disabled";
> +		};
> +
> +		elemu2: mailbox at 47540000 {
> +			compatible = "fsl,imx95-mu-ele";
> +			reg = <0x0 0x47540000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +			status = "disabled";
> +		};
> +
> +		elemu3: mailbox at 47550000 {
> +			compatible = "fsl,imx95-mu-ele";
> +			reg = <0x0 0x47550000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +		};
> +
> +		elemu4: mailbox at 47560000 {
> +			compatible = "fsl,imx95-mu-ele";
> +			reg = <0x0 0x47560000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +			status = "disabled";
> +		};
> +
> +		elemu5: mailbox at 47570000 {
> +			compatible = "fsl,imx95-mu-ele";
> +			reg = <0x0 0x47570000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +			status = "disabled";
> +		};
> +
> +		v2x_mu: mailbox at 47350000 {
> +			compatible = "fsl,imx95-mu-v2x";
> +			reg = <0x0 0x47350000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +		};
> +
> +		v2x_mu6: mailbox at 47320000 {
> +			compatible = "fsl,imx95-mu-v2x";
> +			reg = <0x0 0x47320000 0x0 0x10000>;
> +			interrupts = <GIC_SPI 254 IRQ_TYPE_LEVEL_HIGH>;
> +			#mbox-cells = <2>;
> +		};

Please sort nodes by address.

Best regards,
Alexander

> +	};
> +};
> 
> 


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