Define I2C alias ports from I2C Switch 0x70 at BMC I2C5.
Add the tmp421 sensors via the I2C alias ports as OCP device
temperature sensors.
Signed-off-by: Chanh Nguyen <chanh@xxxxxxxxxxxxxxxxxxxxxx>
---
Changes in v2:
- None
---
.../dts/aspeed/aspeed-bmc-ampere-mtjade.dts | 16 +++++++++++
.../aspeed/aspeed-bmc-ampere-mtmitchell.dts | 28 +++++++++++++++++++
2 files changed, 44 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts
index 8ab5f301f926..8102f41d1d15 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts
@@ -49,6 +49,11 @@ aliases {
*/
i2c80 = &nvme_m2_0;
i2c81 = &nvme_m2_1;
+
+ /*
+ * i2c bus 82 assigned to OCP slot
+ */
+ i2c82 = &ocpslot;
};
chosen {
@@ -420,6 +425,17 @@ i2c-mux@70 {
reg = <0x70>;
i2c-mux-idle-disconnect;
+ ocpslot: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+
+ ocpslot_temp: temperature-sensor@1f {
+ compatible = "ti,tmp421";
+ reg = <0x1f>;
+ };
+ };
+
nvmeslot_0_7: i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
index 3c8925034a8c..3a97e88278d5 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
@@ -15,6 +15,12 @@ aliases {
serial7 = &uart8;
serial8 = &uart9;
+ /*
+ * i2c bus 30-31 assigned to OCP slot 0-1
+ */
+ i2c30 = &ocpslot_0;
+ i2c31 = &ocpslot_1;
+
/*
* I2C NVMe alias port
*/
@@ -515,6 +521,28 @@ i2c-mux@70 {
#size-cells = <0>;
reg = <0x70>;
i2c-mux-idle-disconnect;
+
+ ocpslot_0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+
+ ocpslot_0_temp: temperature-sensor@1f {
+ compatible = "ti,tmp421";
+ reg = <0x1f>;
+ };
+ };
+
+ ocpslot_1: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+
+ ocpslot_1_temp: temperature-sensor@1f {
+ compatible = "ti,tmp421";
+ reg = <0x1f>;
+ };
+ };
};
};
--
2.43.0
