ARM: dts: aspeed: mtmitchell: Add I2C NVMe alias port

Adds the I2C alias ports to each NVMe drive via the
backplane card.

Besides that, it also adds the eeprom and temperature sensor
on the backplane card.

Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20231005035525.19036-8-chanh@os.amperecomputing.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

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 2c8a752fb962792747ec0bd5b6753cd2803e0eba..7b540880cef9ec390802e8aefe0194dca9f9ab7f 100644 (file)
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
@@ -14,6 +14,42 @@
        aliases {
                serial7 = &uart8;
                serial8 = &uart9;
+
+               /*
+                *  I2C NVMe alias port
+                */
+               i2c100 = &backplane_0;
+               i2c48 = &nvmeslot_0;
+               i2c49 = &nvmeslot_1;
+               i2c50 = &nvmeslot_2;
+               i2c51 = &nvmeslot_3;
+               i2c52 = &nvmeslot_4;
+               i2c53 = &nvmeslot_5;
+               i2c54 = &nvmeslot_6;
+               i2c55 = &nvmeslot_7;
+
+               i2c101 = &backplane_1;
+               i2c56 = &nvmeslot_8;
+               i2c57 = &nvmeslot_9;
+               i2c58 = &nvmeslot_10;
+               i2c59 = &nvmeslot_11;
+               i2c60 = &nvmeslot_12;
+               i2c61 = &nvmeslot_13;
+               i2c62 = &nvmeslot_14;
+               i2c63 = &nvmeslot_15;
+
+               i2c102 = &backplane_2;
+               i2c64 = &nvmeslot_16;
+               i2c65 = &nvmeslot_17;
+               i2c66 = &nvmeslot_18;
+               i2c67 = &nvmeslot_19;
+               i2c68 = &nvmeslot_20;
+               i2c69 = &nvmeslot_21;
+               i2c70 = &nvmeslot_22;
+               i2c71 = &nvmeslot_23;
+
+               i2c80 = &nvme_m2_0;
+               i2c81 = &nvme_m2_1;
        };
 
        chosen {
@@ -521,6 +557,237 @@
 
 &i2c9 {
        status = "okay";
+       i2c-mux@70 {
+               compatible = "nxp,pca9548";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x70>;
+               i2c-mux-idle-disconnect;
+
+               backplane_1: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0x0>;
+
+                       eeprom@50 {
+                               compatible = "atmel,24c64";
+                               reg = <0x50>;
+                               pagesize = <32>;
+                       };
+
+                       i2c-mux@71 {
+                               compatible = "nxp,pca9548";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x71>;
+                               i2c-mux-idle-disconnect;
+
+                               nvmeslot_8: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x0>;
+                               };
+                               nvmeslot_9: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x1>;
+                               };
+                               nvmeslot_10: i2c@2 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x2>;
+                               };
+                               nvmeslot_11: i2c@3 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x3>;
+                               };
+                               nvmeslot_12: i2c@4 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x4>;
+                               };
+                               nvmeslot_13: i2c@5 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x5>;
+                               };
+                               nvmeslot_14: i2c@6 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x6>;
+                               };
+                               nvmeslot_15: i2c@7 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x7>;
+                               };
+                       };
+
+                       tmp432@4c {
+                               compatible = "ti,tmp75";
+                               reg = <0x4c>;
+                       };
+               };
+
+               backplane_2: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0x2>;
+
+                       eeprom@50 {
+                               compatible = "atmel,24c64";
+                               reg = <0x50>;
+                               pagesize = <32>;
+                       };
+
+                       i2c-mux@71 {
+                               compatible = "nxp,pca9548";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x71>;
+                               i2c-mux-idle-disconnect;
+
+                               nvmeslot_16: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x0>;
+                               };
+                               nvmeslot_17: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x1>;
+                               };
+                               nvmeslot_18: i2c@2 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x2>;
+                               };
+                               nvmeslot_19: i2c@3 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x3>;
+                               };
+                               nvmeslot_20: i2c@4 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x4>;
+                               };
+                               nvmeslot_21: i2c@5 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x5>;
+                               };
+                               nvmeslot_22: i2c@6 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x6>;
+                               };
+                               nvmeslot_23: i2c@7 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x7>;
+                               };
+                       };
+
+                       tmp432@4c {
+                               compatible = "ti,tmp75";
+                               reg = <0x4c>;
+                       };
+               };
+
+               backplane_0: i2c@4 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0x4>;
+
+                       eeprom@50 {
+                               compatible = "atmel,24c64";
+                               reg = <0x50>;
+                               pagesize = <32>;
+                       };
+
+                       i2c-mux@71 {
+                               compatible = "nxp,pca9548";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x71>;
+                               i2c-mux-idle-disconnect;
+
+                               nvmeslot_0: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x0>;
+                               };
+                               nvmeslot_1: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x1>;
+                               };
+                               nvmeslot_2: i2c@2 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x2>;
+                               };
+                               nvmeslot_3: i2c@3 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x3>;
+                               };
+                               nvmeslot_4: i2c@4 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x4>;
+                               };
+                               nvmeslot_5: i2c@5 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x5>;
+                               };
+                               nvmeslot_6: i2c@6 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x6>;
+                               };
+                               nvmeslot_7: i2c@7 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x7>;
+                               };
+                       };
+
+                       tmp432@4c {
+                               compatible = "ti,tmp75";
+                               reg = <0x4c>;
+                       };
+               };
+
+               i2c@7 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0x7>;
+
+                       i2c-mux@71 {
+                               compatible = "nxp,pca9546";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x71>;
+                               i2c-mux-idle-disconnect;
+
+                               nvme_m2_0: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x0>;
+                               };
+
+                               nvme_m2_1: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0x1>;
+                               };
+                       };
+               };
+       };
 };
 
 &i2c11 {