99e5d589cd
Introduce Google Icetower Development Board. Icetower is a board created by Google for fingerprint-related functionality development. Signed-off-by: Dawid Niedzwiecki <dawidn@google.com>
78 lines
1.4 KiB
Text
78 lines
1.4 KiB
Text
/*
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* Copyright (c) 2024 Google LLC
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <st/h7/stm32h743Xi.dtsi>
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#include <st/h7/stm32h743vitx-pinctrl.dtsi>
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/ {
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model = "Google Icetower development board";
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compatible = "google,icetower-fpmcu";
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chosen {
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zephyr,console = &usart1;
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zephyr,shell-uart = &usart1;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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};
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};
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&clk_lsi {
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/* LSI clock frequency is 32kHz */
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status = "okay";
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};
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&clk_hsi {
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status = "okay";
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hsi-div = <1>;
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clock-frequency = <DT_FREQ_M(64)>;
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};
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&rcc {
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clocks = <&clk_hsi>;
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clock-frequency = <DT_FREQ_M(64)>;
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d1cpre = <1>;
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hpre = <1>;
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d1ppre = <1>;
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d2ppre1 = <1>;
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d2ppre2 = <1>;
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d3ppre = <1>;
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};
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/* USART1: Servo UART (console) */
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&usart1 {
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pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
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pinctrl-names = "default";
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current-speed = <115200>;
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status = "okay";
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};
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/* SPI1: communication with the AP */
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&spi1 {
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pinctrl-0 = <&spi1_nss_pa4 &spi1_sck_pa5
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&spi1_miso_pa6 &spi1_mosi_pa7>;
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pinctrl-names = "default";
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status = "okay";
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};
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/* SPI4: communication with the fingerprint sensor */
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&spi4 {
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pinctrl-0 = <&spi4_nss_pe11 &spi4_sck_pe12
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&spi4_miso_pe13 &spi4_mosi_pe14>;
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pinctrl-names = "default";
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status = "okay";
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};
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&rtc {
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clocks = <&rcc STM32_CLOCK_BUS_APB4 0x00010000>,
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<&rcc STM32_SRC_LSI RTC_SEL(2)>;
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status = "okay";
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backup_regs {
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status = "okay";
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};
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};
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