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

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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: Alan Tull <atull@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
This commit is contained in:
Alan Tull 2018-02-21 14:25:41 -06:00 committed by Dinh Nguyen
parent d93101abe4
commit eebee19e52
2 changed files with 39 additions and 0 deletions
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5
arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
View File

@ -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";
};

34
arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
View File

@ -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>;
};
};