MIPS: dts: mscc: Add i2c on ocelot

Ocelot has an i2c controller, add it. There is only one possible pinmux
configuration so add it as well.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20353/
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: linux-i2c@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Allan Nielsen <allan.nielsen@microchip.com>

diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
index f7eb612b46ba81348aa8311088af817dc2df5d08..99a9e8555087ff804eedb166424b4f6cd57bc003 100644 (file)
--- a/arch/mips/boot/dts/mscc/ocelot.dtsi
+++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
@@ -78,6 +78,19 @@ uart0: serial@100000 {
                        status = "disabled";
                };
 
+               i2c: i2c@100400 {
+                       compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
+                       pinctrl-0 = <&i2c_pins>;
+                       pinctrl-names = "default";
+                       reg = <0x100400 0x100>, <0x198 0x8>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       interrupts = <8>;
+                       clocks = <&ahb_clk>;
+
+                       status = "disabled";
+               };
+
                uart2: serial@100800 {
                        pinctrl-0 = <&uart2_pins>;
                        pinctrl-names = "default";
@@ -183,6 +196,11 @@ gpio: pinctrl@1070034 {
                        interrupts = <13>;
                        #interrupt-cells = <2>;
 
+                       i2c_pins: i2c-pins {
+                               pins = "GPIO_16", "GPIO_17";
+                               function = "twi";
+                       };
+
                        uart_pins: uart-pins {
                                pins = "GPIO_6", "GPIO_7";
                                function = "uart";
@@ -197,6 +215,7 @@ miim1: miim1 {
                                pins = "GPIO_14", "GPIO_15";
                                function = "miim1";
                        };
+
                };
 
                mdio0: mdio@107009c {