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arm: dts: k3-am65: add support for PCIe and SERDES 

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>
This commit is contained in:
Sekhar Nori 2019-08-01 19:13:00 +05:30 committed by Tom Rini
parent e0598c4584
commit 476e991452
3 changed files with 122 additions and 0 deletions
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108
arch/arm/dts/k3-am65-main.dtsi
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@ -5,6 +5,9 @@
* Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/ * 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 { &cbass_main {
gic500: interrupt-controller@1800000 { gic500: interrupt-controller@1800000 {
compatible = "arm,gic-v3"; compatible = "arm,gic-v3";
@ -143,4 +146,109 @@
clocks = <&k3_clks 113 1>; clocks = <&k3_clks 113 1>;
power-domains = <&k3_pds 113 TI_SCI_PD_EXCLUSIVE>; power-domains = <&k3_pds 113 TI_SCI_PD_EXCLUSIVE>;
}; };
scm_conf: scm_conf@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@4060 {
compatible = "syscon";
reg = <0x00004060 0x4>;
};
pcie1_mode: pcie-mode@4070 {
compatible = "syscon";
reg = <0x00004070 0x4>;
};
serdes0_clk: serdes_clk@4080 {
compatible = "syscon";
reg = <0x00004080 0x4>;
};
serdes1_clk: serdes_clk@4090 {
compatible = "syscon";
reg = <0x00004090 0x4>;
};
pcie_devid: pcie-devid@210 {
compatible = "syscon";
reg = <0x00000210 0x4>;
};
};
serdes0: serdes@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@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@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@1 {
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&gic500>;
interrupts = <GIC_SPI 328 IRQ_TYPE_EDGE_RISING>;
};
};
}; };

1
arch/arm/dts/k3-am65.dtsi
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@ -69,6 +69,7 @@
<0x00 0x00900000 0x00 0x00900000 0x00 0x00012000>, /* serdes */ <0x00 0x00900000 0x00 0x00900000 0x00 0x00012000>, /* serdes */
<0x00 0x01000000 0x00 0x01000000 0x00 0x0af02400>, /* Most peripherals */ <0x00 0x01000000 0x00 0x01000000 0x00 0x0af02400>, /* Most peripherals */
<0x00 0x30800000 0x00 0x30800000 0x00 0x0bc00000>, /* MAIN NAVSS */ <0x00 0x30800000 0x00 0x30800000 0x00 0x0bc00000>, /* MAIN NAVSS */
<0x00 0x10000000 0x00 0x10000000 0x00 0x10000000>, /* PCIe DAT */
/* MCUSS Range */ /* MCUSS Range */
<0x00 0x28380000 0x00 0x28380000 0x00 0x03880000>, <0x00 0x28380000 0x00 0x28380000 0x00 0x03880000>,
<0x00 0x40200000 0x00 0x40200000 0x00 0x00900100>, <0x00 0x40200000 0x00 0x40200000 0x00 0x00900100>,

13
include/dt-bindings/phy/phy-am654-serdes.h Normal file
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@ -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 */