[PATCH] arm64: dts: ti: k3-j784s4-main: Enable ACSPCIE output for PCIe1

From: Siddharth Vadapalli
Date: Mon Jul 15 2024 - 08:33:30 EST


The PCIe reference clock required by the PCIe Endpoints connected to the
PCIe connector corresponding to the PCIe1 instance of PCIe on J784S4-EVM
is driven by the ACSPCIE module. Add the device-tree support for enabling
the same.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
---

Hello,

This patch is based on linux-next tagged next-20240715.
Patch **depends** on the series at:
https://lore.kernel.org/all/20240715120936.1150314-1-s-vadapalli@xxxxxx/
Patch has been tested on J784S4-EVM with the above series applied.
Logs:
https://gist.github.com/Siddharth-Vadapalli-at-TI/d825068cfe55bba7a869469c1ef64ddd

Regards,
Siddharth.

arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
index f170f80f00c1..62a6c7de3af6 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
@@ -7,6 +7,7 @@

#include <dt-bindings/mux/mux.h>
#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/phy/phy-cadence.h>
#include <dt-bindings/phy/phy-ti.h>

#include "k3-serdes.h"
@@ -81,6 +82,11 @@ pcie3_ctrl: pcie3-ctrl@407c {
reg = <0x407c 0x4>;
};

+ acspcie0_proxy_ctrl: acspcie0-ctrl@1a090 {
+ compatible = "ti,j784s4-acspcie-proxy-ctrl", "syscon";
+ reg = <0x1a090 0x4>;
+ };
+
serdes_ln_ctrl: mux-controller@4080 {
compatible = "reg-mux";
reg = <0x00004080 0x30>;
@@ -1094,11 +1100,12 @@ pcie1_rc: pcie@2910000 {
interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>;
device_type = "pci";
ti,syscon-pcie-ctrl = <&pcie1_ctrl 0x0>;
+ ti,syscon-acspcie-proxy-ctrl = <&acspcie0_proxy_ctrl 0x1>;
max-link-speed = <3>;
num-lanes = <4>;
power-domains = <&k3_pds 333 TI_SCI_PD_EXCLUSIVE>;
- clocks = <&k3_clks 333 0>;
- clock-names = "fck";
+ clocks = <&k3_clks 333 0>, <&serdes0 CDNS_TORRENT_REFCLK_DRIVER>;
+ clock-names = "fck", "pcie_refclk";
#address-cells = <3>;
#size-cells = <2>;
bus-range = <0x0 0xff>;
--
2.40.1