zephyr/dts/arm/st/f0/stm32f091.dtsi

73 lines
1.5 KiB
Plaintext
Raw Normal View History

/*
* Copyright (c) Bobby Noelte
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <st/f0/stm32f0.dtsi>
/ {
soc {
flash-controller@40022000 {
flash0: flash@8000000 {
erase-block-size = <2048>;
};
};
timers2: timers@40000000 {
compatible = "st,stm32-timers";
reg = <0x40000000 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00000001>;
status = "disabled";
label = "TIMERS_2";
pwm {
compatible = "st,stm32-pwm";
status = "disabled";
st,prescaler = <0>;
label = "PWM_2";
#pwm-cells = <2>;
};
};
spi2: spi@40003800 {
drivers/spi: stm32: Modify use of "st,stm32-spi-fifo" compatible On stm32 spi devices, there are 2 main IP variants, with and w/o fifo. Fifo is not really used today, but still there is some additional code handling fifo. Today this code is protected under Kconfig symbol SPI_STM32_HAS_FIFO. This code carries redundant information vs dedicated compatible "st,stm32-spi-fifo", which is provided as unique driver compatible for devices supporting this IP as opposed to use of "st,stm32-spi" when fifo is not supported. Having these 2 compatibles defined exclusively is not convenient for migration to DT_INST as DT_INST macros contain compatible string and hence it cannot be used to provide common compatible code for devices defining different compatibles. Based on these observations, review stm32 spi devices compatible declarations. Devices supporting fifo will now declare both compatibles, as proposed by dt spec: "[compatible] property value consists of a concatenated list of null terminated strings, from most specific to most general". Hence field will now be: "st,stm32-spi-fifo", "st,stm32-spi" This way, fifo enabled stm32 spi devices will generate both: DT_INST_STM32_SPI_FOO and DT_INST_STM32_SPI_FIFO_FOO As well as: DT_COMPAT_ST_STM32_SPI and DT_COMPAT_ST_STM32_SPI_FIFO So, DT_INST_STM32_SPI_FOO could be used for device initialization. Also DT_COMPAT_ST_STM32_SPI_FIFO could be used for FIFO handling code inside driver. Hence use it to replace Kconfig symbol SPI_STM32_HAS_FIFO. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2020-03-09 17:43:41 +08:00
compatible = "st,stm32-spi-fifo", "st,stm32-spi";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40003800 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00004000>;
interrupts = <26 3>;
status = "disabled";
label = "SPI_2";
};
pinctrl: pin-controller@48000000 {
gpioe: gpio@48001000 {
compatible = "st,stm32-gpio";
gpio-controller;
#gpio-cells = <2>;
reg = <0x48001000 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_AHB1 0x00200000>;
label = "GPIOE";
};
};
dma1: dma@40020000 {
interrupts = <9 0 10 0 10 0 11 0 11 0 11 0 11 0>;
};
dma2: dma@40020400 {
compatible = "st,stm32-dma";
#dma-cells = <4>;
reg = <0x40020400 0x400>;
interrupts = <9 0 10 0 10 0 11 0 11 0 11 0
11 0 10 0 10 0 11 0 11 0 11 0>;
clocks = <&rcc STM32_CLOCK_BUS_AHB1 0x2>;
st,mem2mem;
status = "disabled";
label = "DMA_2";
};
};
};