MIPS: mscc: ocelot: add MIIM1 bus

There is an additional MIIM (MDIO) bus in this SoC so let's declare it
in the dtsi.

This bus requires GPIO 14 and 15 pins that need to be muxed. There is no
support for internal PHY reset on this bus on the contrary of MIIM0 so
there is only one register address space and not two.

Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20014/
Cc: robh+dt@kernel.org
Cc: mark.rutland@arm.com
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: thomas.petazzoni@bootlin.com

diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
index 7096915f26e0dd60f4ce2fbd9d35fec9d3b25405..d7f0e3551500f13efce185eafe2833e85e67bc1a 100644 (file)
--- a/arch/mips/boot/dts/mscc/ocelot.dtsi
+++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
@@ -178,6 +178,11 @@
                                pins = "GPIO_12", "GPIO_13";
                                function = "uart2";
                        };
+
+                       miim1: miim1 {
+                               pins = "GPIO_14", "GPIO_15";
+                               function = "miim1";
+                       };
                };
 
                mdio0: mdio@107009c {
@@ -201,5 +206,16 @@
                                reg = <3>;
                        };
                };
+
+               mdio1: mdio@10700c0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       compatible = "mscc,ocelot-miim";
+                       reg = <0x10700c0 0x24>;
+                       interrupts = <15>;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&miim1>;
+                       status = "disabled";
+               };
        };
 };