MIPS: xilfpga: Add DT node for AXI I2C

The xilfpga platform has an AXI I2C Bus master with a temperature
sensor connected to it.

Add the device tree node to use them.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14594/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
index d285c8d10bceac7d9c1129e6981562ac3c0a1027..f5ebab85d42eef051ce07dbe5d2067c67b580c9b 100644 (file)
--- a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
+++ b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
@@ -54,6 +54,28 @@
                interrupt-parent = <&axi_intc>;
                interrupts = <0>;
        };
+
+       axi_i2c: i2c@10A00000 {
+           compatible = "xlnx,xps-iic-2.00.a";
+           interrupt-parent = <&axi_intc>;
+           interrupts = <4>;
+           reg = < 0x10A00000 0x10000 >;
+           clocks = <&ext>;
+           xlnx,clk-freq = <0x5f5e100>;
+           xlnx,family = "Artix7";
+           xlnx,gpo-width = <0x1>;
+           xlnx,iic-freq = <0x186a0>;
+           xlnx,scl-inertial-delay = <0x0>;
+           xlnx,sda-inertial-delay = <0x0>;
+           xlnx,ten-bit-adr = <0x0>;
+           #address-cells = <1>;
+           #size-cells = <0>;
+
+           ad7420@4B {
+               compatible = "adi,adt7420";
+               reg = <0x4B>;
+           };
+       } ;
 };
 
 &ext {