[U-Boot] [PATCH 6/7] arm: dts: k3-am65: add support for PCIe and SERDES
Sekhar Nori
nsekhar at ti.com
Wed May 15 14:15:04 UTC 2019
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 at 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 adcd6341e40c..a564b277c357 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";
@@ -69,4 +72,109 @@
clock-frequency = <48000000>;
current-speed = <115200>;
};
+
+ 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>;
+ 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>;
+ 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>;
+ #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 3d4bf369d030..b87081765894 100644
--- a/arch/arm/dts/k3-am65.dtsi
+++ b/arch/arm/dts/k3-am65.dtsi
@@ -61,6 +61,7 @@
<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
More information about the U-Boot
mailing list