From aa261f13dae60850be30de95c7eb6ffb6059a6b7 Mon Sep 17 00:00:00 2001 From: Devi Priya Date: Tue, 16 May 2023 19:20:13 +0530 Subject: arm64: dts: qcom: ipq9574: add support for RDP449 variant Add the initial device tree support for the Reference Design Platform (RDP) 449 based on IPQ9574 family of SoCs. This patch adds support for Console UART, SPI NOR and SMPA1 regulator node. Signed-off-by: Devi Priya Reviewed-by: Krzysztof Kozlowski Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230516135013.3547-3-quic_devipriy@quicinc.com --- arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts | 80 +++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts (limited to 'arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts') diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts new file mode 100644 index 000000000000..c8fa54e1a62c --- /dev/null +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * IPQ9574 RDP449 board device tree source + * + * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved. + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +/dts-v1/; + +#include "ipq9574.dtsi" + +/ { + model = "Qualcomm Technologies, Inc. IPQ9574/AP-AL02-C6"; + compatible = "qcom,ipq9574-ap-al02-c6", "qcom,ipq9574"; + + aliases { + serial0 = &blsp1_uart2; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; +}; + +&blsp1_spi0 { + pinctrl-0 = <&spi_0_pins>; + pinctrl-names = "default"; + status = "okay"; + + flash@0 { + compatible = "micron,n25q128a11", "jedec,spi-nor"; + reg = <0>; + #address-cells = <1>; + #size-cells = <1>; + spi-max-frequency = <50000000>; + }; +}; + +&blsp1_uart2 { + pinctrl-0 = <&uart2_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&rpm_requests { + regulators { + compatible = "qcom,rpm-mp5496-regulators"; + + ipq9574_s1: s1 { + /* + * During kernel bootup, the SoC runs at 800MHz with 875mV set by the bootloaders. + * During regulator registration, kernel not knowing the initial voltage, + * considers it as zero and brings up the regulators with minimum supported voltage. + * Update the regulator-min-microvolt with SVS voltage of 725mV so that + * the regulators are brought up with 725mV which is sufficient for all the + * corner parts to operate at 800MHz + */ + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <1075000>; + }; + }; +}; + +&sleep_clk { + clock-frequency = <32000>; +}; + +&tlmm { + spi_0_pins: spi-0-state { + pins = "gpio11", "gpio12", "gpio13", "gpio14"; + function = "blsp0_spi"; + drive-strength = <8>; + bias-disable; + }; +}; + +&xo_board_clk { + clock-frequency = <24000000>; +}; -- cgit v1.2.3