powerpc: Add I2C bus multiplexer node for B4 and T4240QDS
In both B4 and T4240QDS platform PCA9547 I2C bus multiplexer is used.
The sub-nodes are also reorganized according to right I2C topology.
Signed-off-by: Jia Hongtao <hongtao.jia@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/arch/powerpc/boot/dts/b4qds.dtsi b/arch/powerpc/boot/dts/b4qds.dtsi
index e6d2f8f..8b47edc 100644
--- a/arch/powerpc/boot/dts/b4qds.dtsi
+++ b/arch/powerpc/boot/dts/b4qds.dtsi
@@ -120,25 +120,38 @@
};
i2c@118000 {
- eeprom@50 {
- compatible = "at24,24c64";
- reg = <0x50>;
- };
- eeprom@51 {
- compatible = "at24,24c256";
- reg = <0x51>;
- };
- eeprom@53 {
- compatible = "at24,24c256";
- reg = <0x53>;
- };
- eeprom@57 {
- compatible = "at24,24c256";
- reg = <0x57>;
- };
- rtc@68 {
- compatible = "dallas,ds3232";
- reg = <0x68>;
+ mux@77 {
+ compatible = "nxp,pca9547";
+ reg = <0x77>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ eeprom@50 {
+ compatible = "at24,24c64";
+ reg = <0x50>;
+ };
+ eeprom@51 {
+ compatible = "at24,24c256";
+ reg = <0x51>;
+ };
+ eeprom@53 {
+ compatible = "at24,24c256";
+ reg = <0x53>;
+ };
+ eeprom@57 {
+ compatible = "at24,24c256";
+ reg = <0x57>;
+ };
+ rtc@68 {
+ compatible = "dallas,ds3232";
+ reg = <0x68>;
+ };
+ };
};
};
diff --git a/arch/powerpc/boot/dts/t4240qds.dts b/arch/powerpc/boot/dts/t4240qds.dts
index eb3c3de..63e81b0 100644
--- a/arch/powerpc/boot/dts/t4240qds.dts
+++ b/arch/powerpc/boot/dts/t4240qds.dts
@@ -118,34 +118,47 @@
};
i2c@118000 {
- eeprom@51 {
- compatible = "at24,24c256";
- reg = <0x51>;
- };
- eeprom@52 {
- compatible = "at24,24c256";
- reg = <0x52>;
- };
- eeprom@53 {
- compatible = "at24,24c256";
- reg = <0x53>;
- };
- eeprom@54 {
- compatible = "at24,24c256";
- reg = <0x54>;
- };
- eeprom@55 {
- compatible = "at24,24c256";
- reg = <0x55>;
- };
- eeprom@56 {
- compatible = "at24,24c256";
- reg = <0x56>;
- };
- rtc@68 {
- compatible = "dallas,ds3232";
- reg = <0x68>;
- interrupts = <0x1 0x1 0 0>;
+ mux@77 {
+ compatible = "nxp,pca9547";
+ reg = <0x77>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ eeprom@51 {
+ compatible = "at24,24c256";
+ reg = <0x51>;
+ };
+ eeprom@52 {
+ compatible = "at24,24c256";
+ reg = <0x52>;
+ };
+ eeprom@53 {
+ compatible = "at24,24c256";
+ reg = <0x53>;
+ };
+ eeprom@54 {
+ compatible = "at24,24c256";
+ reg = <0x54>;
+ };
+ eeprom@55 {
+ compatible = "at24,24c256";
+ reg = <0x55>;
+ };
+ eeprom@56 {
+ compatible = "at24,24c256";
+ reg = <0x56>;
+ };
+ rtc@68 {
+ compatible = "dallas,ds3232";
+ reg = <0x68>;
+ interrupts = <0x1 0x1 0 0>;
+ };
+ };
};
};