Add I2C nodes for AM64 and enable pinmux for i2c0 for reading eeprom data.
Signed-off-by: Lokesh Vutla <lokeshvu...@ti.com>
---
arch/arm/dts/k3-am64-main.dtsi | 44 +++++++++++++++++++++++++++
arch/arm/dts/k3-am64.dtsi | 2 ++
arch/arm/dts/k3-am642-evm-u-boot.dtsi | 18 +++++++++++
3 files changed, 64 insertions(+)
diff --git a/arch/arm/dts/k3-am64-main.dtsi b/arch/arm/dts/k3-am64-main.dtsi
index ff65857d1e..4b6cd6cc90 100644
--- a/arch/arm/dts/k3-am64-main.dtsi
+++ b/arch/arm/dts/k3-am64-main.dtsi
@@ -446,4 +446,48 @@
clocks = <&k3_clks 78 0>;
clock-names = "gpio";
};
+
+ main_i2c0: i2c@20000000 {
+ compatible = "ti,am64-i2c", "ti,omap4-i2c";
+ reg = <0x0 0x20000000 0x0 0x100>;
+ interrupts = <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-names = "fck";
+ clocks = <&k3_clks 102 2>;
+ power-domains = <&k3_pds 102 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ main_i2c1: i2c@20010000 {
+ compatible = "ti,am64-i2c", "ti,omap4-i2c";
+ reg = <0x0 0x20010000 0x0 0x100>;
+ interrupts = <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-names = "fck";
+ clocks = <&k3_clks 103 2>;
+ power-domains = <&k3_pds 103 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ main_i2c2: i2c@20020000 {
+ compatible = "ti,am64-i2c", "ti,omap4-i2c";
+ reg = <0x00 0x20020000 0x0 0x100>;
+ interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-names = "fck";
+ clocks = <&k3_clks 104 2>;
+ power-domains = <&k3_pds 104 TI_SCI_PD_EXCLUSIVE>;
+ };
+
+ main_i2c3: i2c@20030000 {
+ compatible = "ti,am64-i2c", "ti,omap4-i2c";
+ reg = <0x00 0x20030000 0x0 0x100>;
+ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-names = "fck";
+ clocks = <&k3_clks 105 2>;
+ power-domains = <&k3_pds 105 TI_SCI_PD_EXCLUSIVE>;
+ };
};
diff --git a/arch/arm/dts/k3-am64.dtsi b/arch/arm/dts/k3-am64.dtsi
index 0ae8c844c4..fde63463ca 100644
--- a/arch/arm/dts/k3-am64.dtsi
+++ b/arch/arm/dts/k3-am64.dtsi
@@ -28,6 +28,8 @@
serial6 = &main_uart4;
serial7 = &main_uart5;
serial8 = &main_uart6;
+ i2c0 = &main_i2c0;
+ i2c1 = &main_i2c1;
};
chosen { };
diff --git a/arch/arm/dts/k3-am642-evm-u-boot.dtsi
b/arch/arm/dts/k3-am642-evm-u-boot.dtsi
index 6a2224af8e..3bab736a18 100644
--- a/arch/arm/dts/k3-am642-evm-u-boot.dtsi
+++ b/arch/arm/dts/k3-am642-evm-u-boot.dtsi
@@ -28,6 +28,24 @@
};
};
+&main_pmx0 {
+ u-boot,dm-spl;
+ main_i2c0_pins_default: main-i2c0-pins-default {
+ u-boot,dm-spl;
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0260, PIN_INPUT_PULLUP, 0) /* (A18)
I2C0_SCL */
+ AM64X_IOPAD(0x0264, PIN_INPUT_PULLUP, 0) /* (B18)
I2C0_SDA */
+ >;
+ };
+};
+
+&main_i2c0 {
+ u-boot,dm-spl;
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};
+
&main_uart0 {
u-boot,dm-spl;
};
--
2.30.0
