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arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3

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HummingBoard-T features two M.2 connectors labeled "M1" and "M2".
The single SerDes lane of the SoC can be routed to either M1 pci-e
signals, or M2 usb-3 signals by a gpio-controlled mux.

Add overlays for each configuration.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Link: https://lore.kernel.org/r/20240219-add-am64-som-v7-4-0e6e95b0a05d@solid-run.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Josua Mayer 2024-02-19 16:03:03 +01:00 committed by Vignesh Raghavendra
parent d60483faf9
commit bbef42084c
3 changed files with 95 additions and 0 deletions
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6
arch/arm64/boot/dts/ti/Makefile
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@ -38,9 +38,15 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
# Boards with AM64x SoC
k3-am642-hummingboard-t-pcie-dtbs := \
k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-pcie.dtbo
k3-am642-hummingboard-t-usb3-dtbs := \
k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-usb3.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-pcie.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-usb3.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb

45
arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso Normal file
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@ -0,0 +1,45 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2023 Josua Mayer <josua@solid-run.com>
*
* Overlay for SolidRun AM642 HummingBoard-T to enable PCI-E.
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/phy/phy.h>
#include "k3-serdes.h"
&pcie0_rc {
pinctrl-names = "default";
pinctrl-0 = <&pcie0_default_pins>;
reset-gpios = <&main_gpio1 15 GPIO_ACTIVE_HIGH>;
phys = <&serdes0_link>;
phy-names = "pcie-phy";
num-lanes = <1>;
status = "okay";
};
&serdes0 {
#address-cells = <1>;
#size-cells = <0>;
serdes0_link: phy@0 {
reg = <0>;
cdns,num-lanes = <1>;
cdns,phy-type = <PHY_TYPE_PCIE>;
#phy-cells = <0>;
resets = <&serdes_wiz0 1>;
};
};
&serdes_ln_ctrl {
idle-states = <AM64_SERDES0_LANE0_PCIE0>;
};
&serdes_mux {
idle-state = <1>;
};

44
arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso Normal file
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@ -0,0 +1,44 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2023 Josua Mayer <josua@solid-run.com>
*
* Overlay for SolidRun AM642 HummingBoard-T to enable USB-3.1.
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/phy/phy.h>
#include "k3-serdes.h"
&serdes0 {
#address-cells = <1>;
#size-cells = <0>;
serdes0_link: phy@0 {
reg = <0>;
cdns,num-lanes = <1>;
cdns,phy-type = <PHY_TYPE_USB3>;
#phy-cells = <0>;
resets = <&serdes_wiz0 1>;
};
};
&serdes_ln_ctrl {
idle-states = <AM64_SERDES0_LANE0_USB>;
};
&serdes_mux {
idle-state = <0>;
};
&usbss0 {
/delete-property/ ti,usb2-only;
};
&usb0 {
maximum-speed = "super-speed";
phys = <&serdes0_link>;
phy-names = "cdns3,usb3-phy";
};