1// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) 2/* 3 * IPQ9574 RDP454 board device tree source 4 * 5 * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved. 6 * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. 7 */ 8 9/dts-v1/; 10 11#include "ipq9574.dtsi" 12 13/ { 14 model = "Qualcomm Technologies, Inc. IPQ9574/AP-AL02-C9"; 15 compatible = "qcom,ipq9574-ap-al02-c9", "qcom,ipq9574"; 16 17 aliases { 18 serial0 = &blsp1_uart2; 19 }; 20 21 chosen { 22 stdout-path = "serial0:115200n8"; 23 }; 24}; 25 26&blsp1_spi0 { 27 pinctrl-0 = <&spi_0_pins>; 28 pinctrl-names = "default"; 29 status = "okay"; 30 31 flash@0 { 32 compatible = "micron,n25q128a11", "jedec,spi-nor"; 33 reg = <0>; 34 #address-cells = <1>; 35 #size-cells = <1>; 36 spi-max-frequency = <50000000>; 37 }; 38}; 39 40&blsp1_uart2 { 41 pinctrl-0 = <&uart2_pins>; 42 pinctrl-names = "default"; 43 status = "okay"; 44}; 45 46&rpm_requests { 47 regulators { 48 compatible = "qcom,rpm-mp5496-regulators"; 49 50 ipq9574_s1: s1 { 51 /* 52 * During kernel bootup, the SoC runs at 800MHz with 875mV set by the bootloaders. 53 * During regulator registration, kernel not knowing the initial voltage, 54 * considers it as zero and brings up the regulators with minimum supported voltage. 55 * Update the regulator-min-microvolt with SVS voltage of 725mV so that 56 * the regulators are brought up with 725mV which is sufficient for all the 57 * corner parts to operate at 800MHz 58 */ 59 regulator-min-microvolt = <725000>; 60 regulator-max-microvolt = <1075000>; 61 }; 62 }; 63}; 64 65&sleep_clk { 66 clock-frequency = <32000>; 67}; 68 69&tlmm { 70 spi_0_pins: spi-0-state { 71 pins = "gpio11", "gpio12", "gpio13", "gpio14"; 72 function = "blsp0_spi"; 73 drive-strength = <8>; 74 bias-disable; 75 }; 76}; 77 78&xo_board_clk { 79 clock-frequency = <24000000>; 80}; 81