linux-bl808/arch/arm/boot/dts/stm32mp133.dtsi
Olivier Moysan ccdab19738 ARM: dts: stm32: add adc support to stm32mp13
Add ADC1 and ADC2 support to STM32MP13 SoC family.

The STM32MP131 provides only ADC2, while other STM32MP13 SoCs provide
both ADC1 and ADC2.

Internal channels support limitations:
- VREFINT internal channel requires calibration data from OTP memory.
  The nvmem properties used to access OTP are not defined for time being,
  as OTP support is not yet enabled.

- VBAT internal channel is not defined by default in SoC DT, and
  has be defined in board DT when needed, instead. This avoids unwanted
  current consumption on battery, when ADC conversions are performed
  on any other channels.

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2022-10-24 11:11:38 +02:00

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// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright (C) STMicroelectronics 2021 - All Rights Reserved
* Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
*/
#include "stm32mp131.dtsi"
/ {
soc {
m_can1: can@4400e000 {
compatible = "bosch,m_can";
reg = <0x4400e000 0x400>, <0x44011000 0x1400>;
reg-names = "m_can", "message_ram";
interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "int0", "int1";
clocks = <&scmi_clk CK_SCMI_HSE>, <&rcc FDCAN_K>;
clock-names = "hclk", "cclk";
bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
status = "disabled";
};
m_can2: can@4400f000 {
compatible = "bosch,m_can";
reg = <0x4400f000 0x400>, <0x44011000 0x2800>;
reg-names = "m_can", "message_ram";
interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "int0", "int1";
clocks = <&scmi_clk CK_SCMI_HSE>, <&rcc FDCAN_K>;
clock-names = "hclk", "cclk";
bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
status = "disabled";
};
adc_1: adc@48003000 {
compatible = "st,stm32mp13-adc-core";
reg = <0x48003000 0x400>;
interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rcc ADC1>, <&rcc ADC1_K>;
clock-names = "bus", "adc";
interrupt-controller;
#interrupt-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
adc1: adc@0 {
compatible = "st,stm32mp13-adc";
#io-channel-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x0>;
interrupt-parent = <&adc_1>;
interrupts = <0>;
dmas = <&dmamux1 9 0x400 0x80000001>;
dma-names = "rx";
status = "disabled";
channel@18 {
reg = <18>;
label = "vrefint";
};
};
};
};
};