On Sep 4, 2013, at 9:41 PM, Jia Hongtao wrote:
> 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....@freescale.com>
> ---
> V2 change log:
> Reorganized the sub-nodes under I2C multiplexer to represent right topology.
>
> arch/powerpc/boot/dts/b4qds.dtsi | 49 +++++++++++++++++-----------
> arch/powerpc/boot/dts/t4240qds.dts | 67 ++++++++++++++++++++++----------------
> 2 files changed, 69 insertions(+), 47 deletions(-)
>
> diff --git a/arch/powerpc/boot/dts/b4qds.dtsi
> b/arch/powerpc/boot/dts/b4qds.dtsi
> index e6d2f8f..de8cb38 100644
> --- a/arch/powerpc/boot/dts/b4qds.dtsi
> +++ b/arch/powerpc/boot/dts/b4qds.dtsi
> @@ -120,25 +120,36 @@
> };
>
> 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>;
> + pca9547@77 {
> + compatible = "philips,pca9547";
We seem to be using nxp instead of philips now.
> + reg = <0x77>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + channel@0 {
channel should probably be i2c
[same comments below]
> + #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 0555976..ae68595 100644
> --- a/arch/powerpc/boot/dts/t4240qds.dts
> +++ b/arch/powerpc/boot/dts/t4240qds.dts
> @@ -118,34 +118,45 @@
> };
>
> 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>;
> + pca9547@77 {
> + compatible = "philips,pca9547";
> + reg = <0x77>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + channel@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>;
> + };
> + };
> };
> };
> };
> --
> 1.8.0
>
>
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