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soc: stm32g0: Add support for STM32 IWDG

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The driver for STM32's independent watchdog already exists and is
compatible with the stm32g0 SoC. Enable the independent watchdog
for the stm32g0 series for use with this driver.

Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
This commit is contained in:
Thomas Stranger 2020-03-04 23:39:28 +01:00 • committed by Johan Hedberg
commit a44e9f496e
3 changed files with 13 additions and 0 deletions
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7
dts/arm/st/g0/stm32g0.dtsi
View file

@ -105,6 +105,13 @@
};
};
iwdg: watchdog@40003000 {
compatible = "st,stm32-watchdog";
reg = <0x40003000 0x400>;
label = "IWDG";
status = "disabled";
};
wwdg: watchdog@40002c00 {
compatible = "st,stm32-window-watchdog";
reg = <0x40002C00 0x400>;

2
soc/arm/st_stm32/stm32g0/dts_fixup.h
View file

@ -97,6 +97,8 @@
#define DT_UART_STM32_USART_2_CLOCK_BUS DT_ST_STM32_USART_40004400_CLOCK_BUS
#define DT_UART_STM32_USART_2_HW_FLOW_CONTROL DT_ST_STM32_USART_40004400_HW_FLOW_CONTROL
#define DT_WDT_0_NAME DT_INST_0_ST_STM32_WATCHDOG_LABEL
#define DT_WWDT_0_BASE_ADDRESS DT_INST_0_ST_STM32_WINDOW_WATCHDOG_BASE_ADDRESS
#define DT_WWDT_0_NAME DT_INST_0_ST_STM32_WINDOW_WATCHDOG_LABEL
#define DT_WWDT_0_IRQ DT_INST_0_ST_STM32_WINDOW_WATCHDOG_IRQ_0

4
soc/arm/st_stm32/stm32g0/soc.h
View file

@ -44,6 +44,10 @@
#include <stm32g0xx_ll_i2c.h>
#endif
#ifdef CONFIG_IWDG_STM32
#include <stm32g0xx_ll_iwdg.h>
#endif
#ifdef CONFIG_WWDG_STM32
#include <stm32g0xx_ll_wwdg.h>
#endif