Commit eebee19e authored by Alan Tull's avatar Alan Tull Committed by Dinh Nguyen
Browse files

arm64: dts: stratix10: enable i2c, add i2c periperals 



Add clock for i2c
Enable i2c1
Set the i2c bus speed to 100KHz
Add the following i2c peripherals
* ds1339 RTC
* 24c32 EEPROM
* max1619 temperature monitor
* ltc2497 ADC
  * Add a fixed regulator for the ADC's Vref.

This requires Dinh Nguyen's Stratix10 clock driver
("clk: socfpga: stratix10: add clock driver for Stratix10 platform")

Signed-off-by: default avatarAlan Tull <atull@kernel.org>
Signed-off-by: default avatarDinh Nguyen <dinguyen@kernel.org>
parent d93101ab

arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi

+5 −0
Original line number Diff line number Diff line
@@ -207,6 +207,7 @@ 
			reg = <0xffc02800 0x100>;

			interrupts = <0 103 4>;

			resets = <&rst I2C0_RESET>;

			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;

			status = "disabled";

		};
@@ -217,6 +218,7 @@ 
			reg = <0xffc02900 0x100>;

			interrupts = <0 104 4>;

			resets = <&rst I2C1_RESET>;

			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;

			status = "disabled";

		};
@@ -227,6 +229,7 @@ 
			reg = <0xffc02a00 0x100>;

			interrupts = <0 105 4>;

			resets = <&rst I2C2_RESET>;

			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;

			status = "disabled";

		};
@@ -237,6 +240,7 @@ 
			reg = <0xffc02b00 0x100>;

			interrupts = <0 106 4>;

			resets = <&rst I2C3_RESET>;

			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;

			status = "disabled";

		};
@@ -247,6 +251,7 @@ 
			reg = <0xffc02c00 0x100>;

			interrupts = <0 107 4>;

			resets = <&rst I2C4_RESET>;

			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;

			status = "disabled";

		};

arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts

+34 −0
Original line number Diff line number Diff line
@@ -51,6 +51,13 @@ 
		reg = <0 0 0 0>;

	};



	ref_033v: 033-v-ref {

		compatible = "regulator-fixed";

		regulator-name = "0.33V";

		regulator-min-microvolt = <330000>;

		regulator-max-microvolt = <330000>;

	};



	soc {

		clocks {

			osc1 {
@@ -113,3 +120,30 @@ 
&watchdog0 {

	status = "okay";

};



&i2c1 {

	status = "okay";

	clock-frequency = <100000>;



	adc@14 {

		compatible = "lltc,ltc2497";

		reg = <0x14>;

		vref-supply = <&ref_033v>;

	};



	temp@4c {

		compatible = "maxim,max1619";

		reg = <0x4c>;

	};



	eeprom@51 {

		compatible = "atmel,24c32";

		reg = <0x51>;

		pagesize = <32>;

	};



	rtc@68 {

		compatible = "dallas,ds1339";

		reg = <0x68>;

	};

};

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