285 lines
6.9 KiB
Plaintext
285 lines
6.9 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
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/*
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* Copyright (C) 2019-2023, STMicroelectronics - All Rights Reserved
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* Author: DCM Board Support - TF-A simplified version
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*/
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/dts-v1/;
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#include "stm32mp157.dtsi"
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#include "stm32mp15xc.dtsi"
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#include "stm32mp15-pinctrl.dtsi"
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#include "stm32mp15xxac-pinctrl.dtsi"
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/ {
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model = "STM32MP157C DCM Board";
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compatible = "st,stm32mp157c-dcm", "st,stm32mp157";
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memory@c0000000 {
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device_type = "memory";
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reg = <0xc0000000 0x40000000>; /* 1GB */
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};
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aliases {
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mmc0 = &sdmmc1; /* SD-Karte */
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mmc1 = &sdmmc2; /* eMMC */
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serial0 = &usart2; /* Console */
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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/* Clock configuration - vereinfacht für TF-A */
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clocks {
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clk_hse: clk-hse {
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clock-frequency = <24000000>;
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};
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clk_lse: clk-lse {
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clock-frequency = <32768>;
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};
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};
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/* Override ARM PMU to fix cpu1 reference for BL2 */
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arm-pmu {
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compatible = "arm,cortex-a7-pmu";
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interrupts = <0 200 4>;
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interrupt-affinity = <&cpu0>;
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interrupt-parent = <&intc>;
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};
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};
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&pinctrl {
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/* SDMMC1 sd-card */
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sdmmc1_pins_mx: sdmmc1_mx-0 {
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pins1 {
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pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
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<STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */
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<STM32_PINMUX('E', 6, AF8 )>, /* SDMMC1_D2 */
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<STM32_PINMUX('C', 11, AF12)>, /* SDMMC1_D3 */
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<STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
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bias-disable;
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drive-push-pull;
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slew-rate = <1>;
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};
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pins2 {
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pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
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bias-disable;
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drive-push-pull;
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slew-rate = <3>;
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};
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};
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sdmmc1_opendrain_pins_mx: sdmmc1_opendrain_mx-0 {
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pins1 {
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pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
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<STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */
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<STM32_PINMUX('E', 6, AF8 )>, /* SDMMC1_D2 */
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<STM32_PINMUX('C', 11, AF12)>; /* SDMMC1_D3 */
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bias-disable;
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drive-push-pull;
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slew-rate = <1>;
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};
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pins2 {
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pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
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bias-disable;
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drive-push-pull;
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slew-rate = <3>;
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};
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pins3 {
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pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
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bias-disable;
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drive-open-drain;
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slew-rate = <1>;
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};
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};
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sdmmc1_cd_pins: sdmmc1_cd_pins-0 {
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pins {
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u-boot,dm-pre-reloc;
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pinmux = <STM32_PINMUX('F', 2, GPIO)>; /* SD_DETECT */
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bias-pull-up;
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};
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};
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/* SDMMC2 eMMC */
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sdmmc2_pins_mx: sdmmc2_mx-0 {
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pins1 {
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pinmux = <STM32_PINMUX('B', 14, AF9 )>, /* SDMMC2_D0 */
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<STM32_PINMUX('B', 15, AF9 )>, /* SDMMC2_D1 */
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<STM32_PINMUX('B', 3, AF9 )>, /* SDMMC2_D2 */
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<STM32_PINMUX('B', 4, AF9 )>, /* SDMMC2_D3 */
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<STM32_PINMUX('A', 8, AF9 )>, /* SDMMC2_D4 */
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<STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
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<STM32_PINMUX('C', 6, AF10)>, /* SDMMC2_D6 */
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<STM32_PINMUX('D', 3, AF9 )>, /* SDMMC2_D7 */
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<STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
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bias-pull-up;
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drive-push-pull;
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slew-rate = <1>;
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};
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pins2 {
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pinmux = <STM32_PINMUX('E', 3, AF9 )>; /* SDMMC2_CK */
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bias-pull-up;
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drive-push-pull;
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slew-rate = <3>;
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};
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};
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sdmmc2_opendrain_pins_mx: sdmmc2_opendrain_mx-0 {
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pins1 {
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pinmux = <STM32_PINMUX('B', 14, AF9 )>, /* SDMMC2_D0 */
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<STM32_PINMUX('B', 15, AF9 )>, /* SDMMC2_D1 */
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<STM32_PINMUX('B', 3, AF9 )>, /* SDMMC2_D2 */
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<STM32_PINMUX('B', 4, AF9 )>, /* SDMMC2_D3 */
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<STM32_PINMUX('A', 8, AF9 )>, /* SDMMC2_D4 */
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<STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
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<STM32_PINMUX('C', 6, AF10)>, /* SDMMC2_D6 */
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<STM32_PINMUX('D', 3, AF9 )>; /* SDMMC2_D7 */
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bias-pull-up;
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drive-push-pull;
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slew-rate = <1>;
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};
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pins2 {
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pinmux = <STM32_PINMUX('E', 3, AF9 )>; /* SDMMC2_CK */
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bias-pull-up;
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drive-push-pull;
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slew-rate = <3>;
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};
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pins3 {
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pinmux = <STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
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bias-pull-up;
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drive-open-drain;
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slew-rate = <1>;
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};
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};
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usart2_pins_mx: usart2_mx-0 {
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pins1 {
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pinmux = <STM32_PINMUX('F', 5, AF7)>; /* USART2_TX */
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bias-disable;
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drive-push-pull;
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slew-rate = <0>;
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};
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pins2 {
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pinmux = <STM32_PINMUX('F', 4, AF7)>; /* USART2_RX */
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bias-disable;
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};
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};
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};
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&pinctrl_z {
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i2c4_pins_z_mx: i2c4_mx-0 {
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u-boot,dm-pre-reloc;
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pins {
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u-boot,dm-pre-reloc;
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pinmux = <STM32_PINMUX('Z', 4, AF6)>, /* I2C4_SCL */
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<STM32_PINMUX('Z', 5, AF6)>; /* I2C4_SDA */
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bias-disable;
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drive-open-drain;
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slew-rate = <0>;
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};
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};
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};
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/* Console UART */
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&usart2 {
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status = "okay";
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};
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/* SD-Karte für Boot */
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&sdmmc1 {
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status = "okay";
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st,neg-edge;
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bus-width = <4>;
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};
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/* eMMC für Boot */
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&sdmmc2 {
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status = "okay";
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non-removable;
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no-sd;
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no-sdio;
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st,neg-edge;
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bus-width = <8>;
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};
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/* USB Controllers - fix usbphyc references */
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&usbh_ohci {
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clocks = <&rcc 111>;
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resets = <&rcc 3288>;
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status = "disabled";
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};
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&usbh_ehci {
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clocks = <&rcc 111>;
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resets = <&rcc 3288>;
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status = "disabled";
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};
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&usbotg_hs {
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clocks = <&rcc 166>;
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clock-names = "otg";
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resets = <&rcc 19656>;
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reset-names = "dwc2";
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status = "disabled";
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};
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/* I2C4 für PMIC - minimal für TF-A */
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&i2c4 {
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status = "okay";
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pmic: stpmic@33 {
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compatible = "st,stpmic1";
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reg = <0x33>;
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status = "okay";
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regulators {
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compatible = "st,stpmic1-regulators";
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vddcore: buck1 {
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regulator-name = "vddcore";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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};
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vdd_ddr: buck2 {
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regulator-name = "vdd_ddr";
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regulator-min-microvolt = <1350000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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};
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v3v3: buck4 {
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regulator-name = "v3v3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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};
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};
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};
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/* RNG für TF-A Entropy */
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&rng1 {
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status = "okay";
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};
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/* Crypto für Secure Boot */
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&cryp1 {
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status = "okay";
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};
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&hash1 {
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status = "okay";
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};
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/* CPU Voltage Supply */
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&cpu0 {
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cpu-supply = <&vddcore>;
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};
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&cpu1 {
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cpu-supply = <&vddcore>;
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};
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