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8a2ffd5a85
Add support for the R-Car S4 Starter Kit with R8A779F4 SoC support. This implementation natively uses OF_UPSTREAM to pull in most recent DT. The defconfig is derived from S4 Spider, with reduced UART baud rate to 921600 Bdps. The DT alias to rswitch is removed as the alias should point to rswitch ports, not to rswitch itself, see [1]. [1] https://lore.kernel.org/linux-arm-kernel/20250118111344.361617-5-marek.vasut+renesas@mailbox.org/ Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
42 lines
729 B
Text
42 lines
729 B
Text
// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree Source extras for U-Boot for the S4SK board
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*
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* Copyright (C) 2024-2025 Renesas Electronics Corp.
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*/
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#include "r8a779f0-u-boot.dtsi"
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/ {
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aliases {
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spi0 = &rpc;
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/delete-property/ ethernet0;
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};
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};
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&pfc {
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qspi0_pins: qspi0 {
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groups = "qspi0_ctrl", "qspi0_data4";
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function = "qspi0";
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};
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};
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&rpc {
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pinctrl-0 = <&qspi0_pins>;
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pinctrl-names = "default";
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#address-cells = <1>;
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#size-cells = <0>;
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spi-max-frequency = <40000000>;
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status = "okay";
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spi-flash@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "s25fs512s", "jedec,spi-nor";
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reg = <0>;
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spi-tx-bus-width = <1>;
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spi-rx-bus-width = <1>;
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spi-max-frequency = <40000000>;
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};
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};
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