[PATCH v13 15/15] arm64: dts: ls1088ardb: Add serdes descriptions

[Sean Anderson]

This adds serdes support to the LS1088ARDB. I have tested the QSGMII
ports as well as the two 10G ports. 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.

To enable serdes support, the DPC needs to set the macs to
MAC_LINK_TYPE_BACKPLANE. All MACs using the same QSGMII should be
converted at once. Additionally, in order to change interface types, the
MC firmware must support DPAA2_MAC_FEATURE_PROTOCOL_CHANGE.

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

---

Changes in v13:
- Split off interrupt and SFP changes into separate commits

Changes in v10:
- Move serdes bindings to SoC dtsi
- Use "descriptions" instead of "bindings"
- Don't use /clocks
- Add missing gpio-controller properties

Changes in v9:
- Add fsl,unused-lanes-reserved to allow a gradual transition, depending
  on the mac link type.
- Remove unused clocks
- Fix some phy mode node names
- phy-type -> fsl,phy

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    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
index 9fb1960f1258..ede537b644e8 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -18,6 +18,18 @@ / {
 	model = "LS1088A RDB Board";
 	compatible = "fsl,ls1088a-rdb", "fsl,ls1088a";
 
+	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>;
@@ -27,16 +39,26 @@ sfp_slot: sfp {
 	};
 };
 
+&serdes1 {
+	clocks = <&clk_100mhz>, <&clk_156mhz>;
+	clock-names = "ref0", "ref1";
+	fsl,unused-lanes-reserved;
+	status = "okay";
+};
+
 &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 {
@@ -44,6 +66,7 @@ &dpmac3 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_0>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac4 {
@@ -51,6 +74,7 @@ &dpmac4 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_1>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac5 {
@@ -58,6 +82,7 @@ &dpmac5 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_2>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac6 {
@@ -65,6 +90,7 @@ &dpmac6 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs3_3>;
+	phys = <&serdes1_A>;
 };
 
 &dpmac7 {
@@ -72,6 +98,7 @@ &dpmac7 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_0>;
+	phys = <&serdes1_B>;
 };
 
 &dpmac8 {
@@ -79,6 +106,7 @@ &dpmac8 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_1>;
+	phys = <&serdes1_B>;
 };
 
 &dpmac9 {
@@ -86,6 +114,7 @@ &dpmac9 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_2>;
+	phys = <&serdes1_B>;
 };
 
 &dpmac10 {
@@ -93,6 +122,7 @@ &dpmac10 {
 	phy-connection-type = "qsgmii";
 	managed = "in-band-status";
 	pcs-handle = <&pcs7_3>;
+	phys = <&serdes1_B>;
 };
 
 &emdio1 {
-- 
2.35.1.1320.gc452695387.dirty