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.

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.ander...@seco.com>

---

(no changes since v10)

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    | 82 ++++++++++++++++++-
 1 file changed, 80 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 ee8e932628d1..ede537b644e8 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -10,17 +10,55 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+
 #include "fsl-ls1088a.dtsi"
 
 / {
        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>;
+               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 = <&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 {
@@ -28,6 +66,7 @@ &dpmac3 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs3_0>;
+       phys = <&serdes1_A>;
 };
 
 &dpmac4 {
@@ -35,6 +74,7 @@ &dpmac4 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs3_1>;
+       phys = <&serdes1_A>;
 };
 
 &dpmac5 {
@@ -42,6 +82,7 @@ &dpmac5 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs3_2>;
+       phys = <&serdes1_A>;
 };
 
 &dpmac6 {
@@ -49,6 +90,7 @@ &dpmac6 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs3_3>;
+       phys = <&serdes1_A>;
 };
 
 &dpmac7 {
@@ -56,6 +98,7 @@ &dpmac7 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs7_0>;
+       phys = <&serdes1_B>;
 };
 
 &dpmac8 {
@@ -63,6 +106,7 @@ &dpmac8 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs7_1>;
+       phys = <&serdes1_B>;
 };
 
 &dpmac9 {
@@ -70,6 +114,7 @@ &dpmac9 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs7_2>;
+       phys = <&serdes1_B>;
 };
 
 &dpmac10 {
@@ -77,6 +122,7 @@ &dpmac10 {
        phy-connection-type = "qsgmii";
        managed = "in-band-status";
        pcs-handle = <&pcs7_3>;
+       phys = <&serdes1_B>;
 };
 
 &emdio1 {
@@ -128,7 +174,6 @@ &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 +216,12 @@ rtc@51 {
                                interrupts-extended = <&extirq 0 
IRQ_TYPE_LEVEL_LOW>;
                        };
                };
+
+               sfp_i2c: i2c@6 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0x6>;
+               };
        };
 };
 
@@ -185,8 +236,31 @@ 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";
+                       gpio-controller;
+                       no-output;
+               };
+
+               brdcfg9: gpio-controller@59 {
+                       #gpio-cells = <2>;
+                       compatible = "fsl,fpga-qixis-brdcfg9",
+                                    "ni,169445-nand-gpio";
+                       reg = <0x59 0x1>;
+                       reg-names = "dat";
+                       gpio-controller;
+               };
        };
 };
 
@@ -203,6 +277,10 @@ &esdhc {
        status = "okay";
 };
 
+&pcs_mdio1 {
+       status = "okay";
+};
+
 &pcs_mdio2 {
        status = "okay";
 };
-- 
2.35.1.1320.gc452695387.dirty

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