powerpc/t104xd4rdb: add DS26522 nodes to device tree

DS26522 is used for tdm, configured by SPI bus.
Add nodes under spi node to t104xd4rdb.dtsi.

Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

diff --git a/Documentation/devicetree/bindings/net/maxim,ds26522.txt b/Documentation/devicetree/bindings/net/maxim,ds26522.txt
new file mode 100644 (file)
index 0000000..ee8bb72
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/maxim,ds26522.txt
@@ -0,0 +1,13 @@
+* Maxim (Dallas) DS26522 Dual T1/E1/J1 Transceiver
+
+Required properties:
+- compatible: Should contain "maxim,ds26522".
+- reg: SPI CS.
+- spi-max-frequency: SPI clock.
+
+Example:
+       slic@1 {
+               compatible = "maxim,ds26522";
+               reg = <1>;
+               spi-max-frequency = <2000000>; /* input clock */
+       };

diff --git a/arch/powerpc/boot/dts/t104xd4rdb.dtsi b/arch/powerpc/boot/dts/t104xd4rdb.dtsi
index 491367bd3883111b6ae0011597abce0784f9b962..3f6d7c6a106b7d18fe52afe6cc3cbb6dbf450fc9 100644 (file)
--- a/arch/powerpc/boot/dts/t104xd4rdb.dtsi
+++ b/arch/powerpc/boot/dts/t104xd4rdb.dtsi
@@ -109,6 +109,16 @@
                                /* input clock */
                                spi-max-frequency = <10000000>;
                        };
+                       slic@1 {
+                               compatible = "maxim,ds26522";
+                               reg = <1>;
+                               spi-max-frequency = <2000000>; /* input clock */
+                       };
+                       slic@2 {
+                               compatible = "maxim,ds26522";
+                               reg = <2>;
+                               spi-max-frequency = <2000000>; /* input clock */
+                       };
                };
                i2c@118000 {
                        hwmon@4c {