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powerpc: Add I2C bus multiplexer node for B4 and T4240QDS

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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>
This commit is contained in:
Hongtao Jia 2013-09-09 18:03:33 +08:00 committed by Scott Wood
parent 788d399d3c
commit afc4b47372
2 changed files with 73 additions and 47 deletions
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51
arch/powerpc/boot/dts/b4qds.dtsi
View file

@ -120,25 +120,38 @@
}; };
i2c@118000 { i2c@118000 {
eeprom@50 { mux@77 {
compatible = "at24,24c64"; compatible = "nxp,pca9547";
reg = <0x50>; reg = <0x77>;
}; #address-cells = <1>;
eeprom@51 { #size-cells = <0>;
compatible = "at24,24c256";
reg = <0x51>; i2c@0 {
}; #address-cells = <1>;
eeprom@53 { #size-cells = <0>;
compatible = "at24,24c256"; reg = <0>;
reg = <0x53>;
}; eeprom@50 {
eeprom@57 { compatible = "at24,24c64";
compatible = "at24,24c256"; reg = <0x50>;
reg = <0x57>; };
}; eeprom@51 {
rtc@68 { compatible = "at24,24c256";
compatible = "dallas,ds3232"; reg = <0x51>;
reg = <0x68>; };
eeprom@53 {
compatible = "at24,24c256";
reg = <0x53>;
};
eeprom@57 {
compatible = "at24,24c256";
reg = <0x57>;
};
rtc@68 {
compatible = "dallas,ds3232";
reg = <0x68>;
};
};
}; };
}; };

69
arch/powerpc/boot/dts/t4240qds.dts
View file

@ -118,34 +118,47 @@
}; };
i2c@118000 { i2c@118000 {
eeprom@51 { mux@77 {
compatible = "at24,24c256"; compatible = "nxp,pca9547";
reg = <0x51>; reg = <0x77>;
}; #address-cells = <1>;
eeprom@52 { #size-cells = <0>;
compatible = "at24,24c256";
reg = <0x52>; i2c@0 {
}; #address-cells = <1>;
eeprom@53 { #size-cells = <0>;
compatible = "at24,24c256"; reg = <0>;
reg = <0x53>;
}; eeprom@51 {
eeprom@54 { compatible = "at24,24c256";
compatible = "at24,24c256"; reg = <0x51>;
reg = <0x54>; };
}; eeprom@52 {
eeprom@55 { compatible = "at24,24c256";
compatible = "at24,24c256"; reg = <0x52>;
reg = <0x55>; };
}; eeprom@53 {
eeprom@56 { compatible = "at24,24c256";
compatible = "at24,24c256"; reg = <0x53>;
reg = <0x56>; };
}; eeprom@54 {
rtc@68 { compatible = "at24,24c256";
compatible = "dallas,ds3232"; reg = <0x54>;
reg = <0x68>; };
interrupts = <0x1 0x1 0 0>; 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>;
};
};
}; };
}; };