michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: pwm: Add STM32G0XX pwm support

Browse source 
Add pwm support for STM32G0X SoC series.

Signed-off-by: Philippe Retornaz <philippe@shapescale.com
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2019-06-26 13:22:47 +02:00 • committed by Maureen Helm
commit da48451a01
3 changed files with 20 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/pwm/pwm_stm32.c
View file

@ -35,7 +35,7 @@ static u32_t __get_tim_clk(u32_t bus_clk,
if (pclken->bus == STM32_CLOCK_BUS_APB1) {
apb_psc = CONFIG_CLOCK_STM32_APB1_PRESCALER;
}
#ifndef CONFIG_SOC_SERIES_STM32F0X
#if !defined(CONFIG_SOC_SERIES_STM32F0X) && !defined(CONFIG_SOC_SERIES_STM32G0X)
else {
apb_psc = CONFIG_CLOCK_STM32_APB2_PRESCALER;
}

16
dts/arm/st/g0/stm32g0.dtsi
View file

@ -54,6 +54,22 @@
label = "STM32_CLK_RCC";
};
timers3: timers@40000400 {
compatible = "st,stm32-timers";
reg = <0x40000400 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00000002>;
status = "disabled";
label = "TIMERS_3";
pwm {
compatible = "st,stm32-pwm";
status = "disabled";
st,prescaler = <10000>;
label = "PWM_3";
#pwm-cells = <2>;
};
};
};
};

3
soc/arm/st_stm32/stm32g0/dts_fixup.h
View file

@ -11,4 +11,7 @@
#define DT_FLASH_DEV_BASE_ADDRESS DT_ST_STM32G0_FLASH_CONTROLLER_40022000_BASE_ADDRESS
#define DT_FLASH_DEV_NAME DT_ST_STM32G0_FLASH_CONTROLLER_40022000_LABEL
#define DT_PWM_STM32_3_DEV_NAME DT_ST_STM32_PWM_40000400_PWM_LABEL
#define DT_PWM_STM32_3_PRESCALER DT_ST_STM32_PWM_40000400_PWM_ST_PRESCALER
/* End of SoC Level DTS fixup file */