[U-Boot] [PATCH v3 6/7] arm: dts: k3-am65: add support for PCIe and SERDES

[Sekhar Nori <nsekhar@ti.com>]

Add needed device-tree nodes to support PCIe 0
and SERDES on AM65x SoC. The nodes are kept
disabled by default.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 arch/arm/dts/k3-am65-main.dtsi             | 108 +++++++++++++++++++++++++++++
 arch/arm/dts/k3-am65.dtsi                  |   1 +
 include/dt-bindings/phy/phy-am654-serdes.h |  13 ++++
 3 files changed, 122 insertions(+)
 create mode 100644 include/dt-bindings/phy/phy-am654-serdes.h

diff --git a/arch/arm/dts/k3-am65-main.dtsi b/arch/arm/dts/k3-am65-main.dtsi
index 7d0370605769..0f5da9a563d3 100644
--- a/arch/arm/dts/k3-am65-main.dtsi
+++ b/arch/arm/dts/k3-am65-main.dtsi
@@ -5,6 +5,9 @@
  * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
  */
 
+#include <dt-bindings/phy/phy-am654-serdes.h>
+#include <dt-bindings/phy/phy.h>
+
 &cbass_main {
 	gic500: interrupt-controller at 1800000 {
 		compatible = "arm,gic-v3";
@@ -143,4 +146,109 @@
 		clocks = <&k3_clks 113 1>;
 		power-domains = <&k3_pds 113 TI_SCI_PD_EXCLUSIVE>;
 	};
+
+	scm_conf: scm_conf at 100000 {
+		compatible = "syscon", "simple-mfd";
+		reg = <0 0x00100000 0 0x1c000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x0 0x00100000 0x1c000>;
+
+		serdes_mux: mux-controller {
+			compatible = "mmio-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
+					<0x4090 0x3>; /* SERDES1 lane select */
+		};
+
+		pcie0_mode: pcie-mode at 4060 {
+			compatible = "syscon";
+			reg = <0x00004060 0x4>;
+		};
+
+		pcie1_mode: pcie-mode at 4070 {
+			compatible = "syscon";
+			reg = <0x00004070 0x4>;
+		};
+
+		serdes0_clk: serdes_clk at 4080 {
+			compatible = "syscon";
+			reg = <0x00004080 0x4>;
+		};
+
+		serdes1_clk: serdes_clk at 4090 {
+			compatible = "syscon";
+			reg = <0x00004090 0x4>;
+		};
+
+		pcie_devid: pcie-devid at 210 {
+			compatible = "syscon";
+			reg = <0x00000210 0x4>;
+		};
+	};
+
+	serdes0: serdes at 900000 {
+		compatible = "ti,phy-am654-serdes";
+		reg = <0x0 0x900000 0x0 0x2000>;
+		reg-names = "serdes";
+		#phy-cells = <2>;
+		power-domains = <&k3_pds 153 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 153 4>, <&k3_clks 153 1>, <&serdes1 AM654_SERDES_LO_REFCLK>;
+		clock-output-names = "serdes0_cmu_refclk", "serdes0_lo_refclk", "serdes0_ro_refclk";
+		assigned-clocks = <&k3_clks 153 4>, <&serdes0 AM654_SERDES_CMU_REFCLK>;
+		assigned-clock-parents = <&k3_clks 153 8>, <&k3_clks 153 4>;
+		ti,serdes-clk = <&serdes0_clk>;
+		mux-controls = <&serdes_mux 0>;
+		#clock-cells = <1>;
+	};
+
+	serdes1: serdes at 910000 {
+		compatible = "ti,phy-am654-serdes";
+		reg = <0x0 0x910000 0x0 0x2000>;
+		reg-names = "serdes";
+		#phy-cells = <2>;
+		power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&serdes0 AM654_SERDES_RO_REFCLK>, <&k3_clks 154 1>, <&k3_clks 154 5>;
+		clock-output-names = "serdes1_cmu_refclk", "serdes1_lo_refclk", "serdes1_ro_refclk";
+		assigned-clocks = <&k3_clks 154 5>, <&serdes1 AM654_SERDES_CMU_REFCLK>;
+		assigned-clock-parents = <&k3_clks 154 9>, <&k3_clks 154 5>;
+		ti,serdes-clk = <&serdes1_clk>;
+		mux-controls = <&serdes_mux 1>;
+		#clock-cells = <1>;
+	};
+
+	pcie0_rc: pcie at 5500000 {
+		compatible = "ti,am654-pcie-rc";
+		reg =  <0x0 0x5500000 0x0 0x1000>, <0x0 0x5501000 0x0 0x1000>, <0x0 0x10000000 0x0 0x2000>, <0x0 0x5506000 0x0 0x1000>;
+		reg-names = "app", "dbics", "config", "atu";
+		power-domains = <&k3_pds 120 TI_SCI_PD_EXCLUSIVE>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges = <0x81000000 0 0          0x0   0x10020000 0 0x00010000
+			  0x82000000 0 0x10030000 0x0   0x10030000 0 0x07FD0000>;
+		ti,syscon-pcie-id = <&pcie_devid>;
+		ti,syscon-pcie-mode = <&pcie0_mode>;
+		bus-range = <0x0 0xff>;
+		status = "disabled";
+		device_type = "pci";
+		num-lanes = <1>;
+		num-ob-windows = <16>;
+		num-viewport = <16>;
+		max-link-speed = <3>;
+		interrupts = <GIC_SPI 340 IRQ_TYPE_EDGE_RISING>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie0_intc 0>, /* INT A */
+				<0 0 0 2 &pcie0_intc 0>, /* INT B */
+				<0 0 0 3 &pcie0_intc 0>, /* INT C */
+				<0 0 0 4 &pcie0_intc 0>; /* INT D */
+		msi-map = <0x0 &gic_its 0x0 0x10000>;
+
+		pcie0_intc: legacy-interrupt-controller at 1 {
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&gic500>;
+			interrupts = <GIC_SPI 328 IRQ_TYPE_EDGE_RISING>;
+		};
+	};
 };
diff --git a/arch/arm/dts/k3-am65.dtsi b/arch/arm/dts/k3-am65.dtsi
index a3abd146d104..a1467a4dd4d4 100644
--- a/arch/arm/dts/k3-am65.dtsi
+++ b/arch/arm/dts/k3-am65.dtsi
@@ -69,6 +69,7 @@
 			 <0x00 0x00900000 0x00 0x00900000 0x00 0x00012000>, /* serdes */
 			 <0x00 0x01000000 0x00 0x01000000 0x00 0x0af02400>, /* Most peripherals */
 			 <0x00 0x30800000 0x00 0x30800000 0x00 0x0bc00000>, /* MAIN NAVSS */
+			 <0x00 0x10000000 0x00 0x10000000 0x00 0x10000000>, /* PCIe DAT */
 			 /* MCUSS Range */
 			 <0x00 0x28380000 0x00 0x28380000 0x00 0x03880000>,
 			 <0x00 0x40200000 0x00 0x40200000 0x00 0x00900100>,
diff --git a/include/dt-bindings/phy/phy-am654-serdes.h b/include/dt-bindings/phy/phy-am654-serdes.h
new file mode 100644
index 000000000000..e8d901729ed9
--- /dev/null
+++ b/include/dt-bindings/phy/phy-am654-serdes.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for AM654 SERDES.
+ */
+
+#ifndef _DT_BINDINGS_AM654_SERDES
+#define _DT_BINDINGS_AM654_SERDES
+
+#define AM654_SERDES_CMU_REFCLK	0
+#define AM654_SERDES_LO_REFCLK	1
+#define AM654_SERDES_RO_REFCLK	2
+
+#endif /* _DT_BINDINGS_AM654_SERDES */
-- 
2.16.2