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 (file)
--- 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 (file)
--- 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>;
+                                       };
+                               };
                        };
                };