[PATCH V2 2/2] arm64: tegra: Populate Jetson AGX Orin EEPROMs

Jon Hunter
2023-01-16T12:07:13Z

Populate the module and system EEPROMs on the Jetson AGX Orin platform.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
Changes V1->V2: None

.../boot/dts/nvidia/tegra234-p3701-0000.dtsi | 24 +++++++++++++++++++
.../boot/dts/nvidia/tegra234-p3737-0000.dtsi | 24 +++++++++++++++++++
2 files changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
index 4fae2547e90e..ee8bc57e4ebe 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
@@ -6,6 +6,14 @@ / {
model = "NVIDIA Jetson AGX Orin";
compatible = "nvidia,p3701-0000", "nvidia,tegra234";

+ vdd_1v8_hs: regulator-vdd-1v8-hs {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_HS";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
vdd_1v8_ls: regulator-vdd-1v8-ls {
compatible = "regulator-fixed";
regulator-name = "VDD_1V8_LS";
@@ -42,6 +50,22 @@ vdd_12v_pcie: regulator-vdd-12v-pcie {
};

bus@0 {
+ i2c@3160000 {
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+
+ label = "module";
+ vcc-supply = <&vdd_1v8_hs>;
+ address-width = <8>;
+ pagesize = <8>;
+ size = <256>;
+ read-only;
+ };
+ };
+
spi@3270000 {
status = "okay";

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi
index e76894574d32..dc6667191bd2 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi
@@ -3,7 +3,31 @@
/ {
compatible = "nvidia,p3737-0000";

+ vdd_1v8_sys: regulator-vdd-1v8-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_SYS";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
bus@0 {
+ i2c@3160000 {
+ status = "okay";
+
+ eeprom@56 {
+ compatible = "atmel,24c02";
+ reg = <0x56>;
+
+ label = "system";
+ vcc-supply = <&vdd_1v8_sys>;
+ address-width = <8>;
+ pagesize = <8>;
+ size = <256>;
+ read-only;
+ };
+ };
+
pwm@3280000 {
status = "okay";
};
--
2.25.1