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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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df62b42b0f
The 'bootph-all' tag was added to the dt-schema to describe the various nodes used during the different phases of bootup with DT. Add the bootph-all tag to all nodes that are used in the bootloader for the AM654 reference board. UARTs used as a console, the SD and eMMC nodes along with the needed regulators for UHS modes, and the needed nodes for OSPI boot are all marked with 'bootph-all' to handle the various boot modes the board is capable of Signed-off-by: Bryan Brattlof <bb@ti.com> Link: https://lore.kernel.org/r/20250710-65-boot-phases-v2-2-d431deb88783@ti.com Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
61 lines
1.3 KiB
Plaintext
61 lines
1.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only OR MIT
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/**
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* DT overlay for SERDES personality card: 2lane PCIe + USB2.0 Host on AM654 EVM
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*
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* Copyright (C) 2018-2024 Texas Instruments Incorporated - https://www.ti.com/
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*/
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/dts-v1/;
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/plugin/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/phy/phy.h>
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#include <dt-bindings/phy/phy-am654-serdes.h>
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#include "k3-pinctrl.h"
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&serdes0 {
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assigned-clocks = <&k3_clks 153 4>,
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<&serdes0 AM654_SERDES_CMU_REFCLK>,
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<&serdes0 AM654_SERDES_RO_REFCLK>;
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assigned-clock-parents = <&k3_clks 153 8>,
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<&k3_clks 153 4>,
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<&k3_clks 153 4>;
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status = "okay";
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};
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&serdes1 {
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assigned-clocks = <&serdes1 AM654_SERDES_CMU_REFCLK>;
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assigned-clock-parents = <&serdes0 AM654_SERDES_RO_REFCLK>;
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status = "okay";
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};
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&pcie0_rc {
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num-lanes = <2>;
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phys = <&serdes0 PHY_TYPE_PCIE 1>, <&serdes1 PHY_TYPE_PCIE 1>;
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phy-names = "pcie-phy0", "pcie-phy1";
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reset-gpios = <&pca9555 5 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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&main_pmx0 {
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usb0_pins_default: usb0-default-pins {
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pinctrl-single,pins = <
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AM65X_IOPAD(0x02bc, PIN_OUTPUT, 0) /* (AD9) USB0_DRVVBUS */
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>;
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};
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};
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&dwc3_0 {
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status = "okay";
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bootph-all;
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};
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&usb0_phy {
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status = "okay";
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};
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&usb0 {
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pinctrl-names = "default";
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pinctrl-0 = <&usb0_pins_default>;
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dr_mode = "host";
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};
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