[PATCH v8 9/9] [DO NOT MERGE] arm64: dts: ls1088ardb: Add serdes bindings

[Sean Anderson <sean.anderson@seco.com>]

This adds serdes support to the LS1088ARDB. I have tested the QSGMII
ports as well as the two 10G ports. The SFP slot is now fully supported,
instead of being modeled as a fixed-link.

Linux hangs around when the serdes is initialized if the si5341 is
enabled with the in-tree driver, so I have modeled it as a two fixed
clocks instead. There are a few registers in the QIXIS FPGA which
control the SFP GPIOs; I have modeled them as discrete GPIO controllers
for now. I never saw the AQR105 interrupt fire; not sure what was going
on, but I have removed it to force polling.

The MC firmware needs to be fairly new (it must support
DPAA2_MAC_FEATURE_PROTOCOL_CHANGE), and the DPC needs to set the macs to
MAC_LINK_TYPE_BACKPLANE. This will break ethernet if those features are
not enabled. I am not sure what the upstreaming plan should be.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>

---

Changes in v8:
- Rename serdes phy handles like the LS1046A
- Add SFP slot binding
- Fix incorrect lane ordering (it's backwards on the LS1088A just like it is in
  the LS1046A).
- Fix duplicated lane 2 (it should have been lane 3).
- Fix incorrectly-documented value for XFI1.
- Remove interrupt for aquantia phy. It never fired for whatever reason,
  preventing the link from coming up.
- Add GPIOs for QIXIS FPGA.
- Enable MAC1 PCS
- Remove si5341 binding

Changes in v4:
- Convert to new bindings

 .../boot/dts/freescale/fsl-ls1088a-rdb.dts    | 168 +++++++++++++++++-
 1 file changed, 166 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
index 1bfbce69cc8b..dac3337acbc9 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -10,17 +10,143 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/phy/phy.h>
+
 #include "fsl-ls1088a.dtsi"
 
 / {
 	model = "LS1088A RDB Board";
 	compatible = "fsl,ls1088a-rdb", "fsl,ls1088a";
+
+	clocks {
+		si5341_xtal: clock-48mhz {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <48000000>;
+		};
+
+		clk_100mhz: clock-100mhz {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <100000000>;
+		};
+
+		clk_156mhz: clock-156mhz {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <156250000>;
+		};
+	};
+
+	sfp_slot: sfp {
+		compatible = "sff,sfp";
+		i2c-bus = <&sfp_i2c>;
+		los-gpios = <&los_stat 5 GPIO_ACTIVE_HIGH>;
+		tx-fault-gpios = <&los_stat 4 GPIO_ACTIVE_HIGH>;
+		tx-disable-gpios = <&brdcfg9 4 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&serdes1 {
+	//clocks = <&si5341 0 8>, <&si5341 0 9>;
+	clocks = <&clk_100mhz>, <&clk_156mhz>;
+	clock-names = "ref0", "ref1";
+	status = "okay";
+
+	/*
+	 * XXX: Lane A uses pins SD1_RX3_P/N! That is, the lane numbers and pin
+	 * numbers are _reversed_.
+	 */
+	serdes1_A: phy@0 {
+		#phy-cells = <0>;
+		reg = <0>;
+
+		/* QSGb */
+		qsgmii-0 {
+			fsl,pccr = <0x9>;
+			fsl,index = <0>;
+			fsl,cfg = <0x1>;
+			phy-type = <PHY_TYPE_QSGMII>;
+		};
+	};
+
+	serdes1_B: phy@1 {
+		#phy-cells = <0>;
+		reg = <1>;
+
+		/* QSGa */
+		qsgmii-1 {
+			fsl,pccr = <0x9>;
+			fsl,index = <1>;
+			fsl,cfg = <0x1>;
+			phy-type = <PHY_TYPE_QSGMII>;
+		};
+	};
+
+	serdes1_C: phy@2 {
+		#phy-cells = <0>;
+		reg = <2>;
+
+		/* SG1 */
+		sgmii-1 {
+			fsl,pccr = <0x8>;
+			fsl,index = <2>;
+			fsl,cfg = <0x1>;
+			phy-type = <PHY_TYPE_2500BASEX>;
+		};
+
+		/*
+		 * XFI1
+		 * Table 23-1 and section 23.5.16.4 disagree; this reflects the
+		 * table.
+		 *
+		 * fsl,cfg is documented as 1, but it is set to 2 by the RCW!
+		 * This is the same as the LS1046A.
+		 */
+		xfi-0 {
+			fsl,pccr = <0xb>;
+			fsl,index = <0>;
+			fsl,cfg = <0x2>;
+			phy-type = <PHY_TYPE_10GBASER>;
+		};
+	};
+
+	serdes1_D: phy@3 {
+		#phy-cells = <0>;
+		reg = <3>;
+
+		/* SG2 */
+		sgmii-3 {
+			fsl,pccr = <0x8>;
+			fsl,index = <3>;
+			fsl,cfg = <0x1>;
+			phy-type = <PHY_TYPE_2500BASEX>;
+		};
+
+		/* XFI2 */
+		xfi-1 {
+			fsl,pccr = <0xb>;
+			fsl,index = <1>;
+			fsl,cfg = <0x1>;
+			phy-type = <PHY_TYPE_10GBASER>;
+		};
+	};
+};
+
+&dpmac1 {
+	managed = "in-band-status";
+	pcs-handle = <&pcs1>;
+	phys = <&serdes1_C>;
+	sfp = <&sfp_slot>;
 };
 
 &dpmac2 {
 	phy-handle = <&mdio2_aquantia_phy>;
 	phy-connection-type = "10gbase-r";
+	managed = "in-band-status";
 	pcs-handle = <&pcs2>;
+	phys = <&serdes1_D>;
 };
 
 &dpmac3 {
@@ -28,6 +154,7 @@ &dpmac3 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_0>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac4 {
@@ -35,6 +162,7 @@ &dpmac4 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_1>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac5 {
@@ -42,6 +170,7 @@ &dpmac5 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_2>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac6 {
@@ -49,6 +178,7 @@ &dpmac6 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_3>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac7 {
@@ -56,6 +186,7 @@ &dpmac7 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_0>;
+	phys = <&serdes1_B>;
 };
 
 &dpmac8 {
@@ -63,6 +194,7 @@ &dpmac8 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_1>;
+	phys = <&serdes1_B>;
 };
 
 &dpmac9 {
@@ -70,6 +202,7 @@ &dpmac9 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_2>;
+	phys = <&serdes1_B>;
 };
 
 &dpmac10 {
@@ -77,6 +210,7 @@ &dpmac10 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_3>;
+	phys = <&serdes1_B>;
 };
 
 &emdio1 {
@@ -128,7 +262,6 @@ &emdio2 {
 
 	mdio2_aquantia_phy: ethernet-phy@0 {
 		compatible = "ethernet-phy-ieee802.3-c45";
-		interrupts-extended = <&extirq 2 IRQ_TYPE_LEVEL_LOW>;
 		reg = <0x0>;
 	};
 };
@@ -171,6 +304,12 @@ rtc@51 {
 				interrupts-extended = <&extirq 0 IRQ_TYPE_LEVEL_LOW>;
 			};
 		};
+
+		sfp_i2c: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x6>;
+		};
 	};
 };
 
@@ -185,8 +324,29 @@ nand@0,0 {
 	};
 
 	fpga: board-control@2,0 {
-		compatible = "fsl,ls1088ardb-fpga", "fsl,fpga-qixis";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "fsl,ls1088ardb-fpga", "fsl,fpga-qixis",
+			     "simple-bus";
 		reg = <0x2 0x0 0x0000100>;
+		ranges = <0x0 0x2 0x0 0x0000100>;
+
+		los_stat: gpio-controller@1d {
+			#gpio-cells = <2>;
+			compatible = "fsl,fpga-qixis-los-stat",
+				     "ni,169445-nand-gpio";
+			reg = <0x1d 0x1>;
+			reg-names = "dat";
+			no-output;
+		};
+
+		brdcfg9: gpio-controller@59 {
+			#gpio-cells = <2>;
+			compatible = "fsl,fpga-qixis-brdcfg9",
+				     "ni,169445-nand-gpio";
+			reg = <0x59 0x1>;
+			reg-names = "dat";
+		};
 	};
 };
 
@@ -203,6 +363,10 @@ &esdhc {
 	status = "okay";
 };
 
+&pcs_mdio1 {
+	status = "okay";
+};
+
 &pcs_mdio2 {
 	status = "okay";
 };
-- 
2.35.1.1320.gc452695387.dirty