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soc: stm32l1: Add support for STM32 IWDG

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The driver for STM32's independent watchdog already exists and is
compatible with the stm32l1 SoC. Enable the independent watchdog
for the stm32l1 series for use with this driver.

Signed-off-by: Kwon Tae-young <tykwon@m2i.co.kr>
This commit is contained in:
Kwon Tae-young 2020-01-23 12:14:49 +09:00 • committed by Kumar Gala
commit 271bd8bcea
3 changed files with 13 additions and 0 deletions
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7
dts/arm/st/l1/stm32l1.dtsi
View file

@ -173,6 +173,13 @@
};
};
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/stm32l1/dts_fixup.h
View file

@ -123,6 +123,8 @@
#define DT_SPI_2_CLOCK_BITS DT_ST_STM32_SPI_40003800_CLOCK_BITS
#define DT_SPI_2_CLOCK_BUS DT_ST_STM32_SPI_40003800_CLOCK_BUS
#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/stm32l1/soc.h
View file

@ -61,6 +61,10 @@
#include <stm32l1xx_ll_spi.h>
#endif
#ifdef CONFIG_IWDG_STM32
#include <stm32l1xx_ll_iwdg.h>
#endif
#ifdef CONFIG_WWDG_STM32
#include <stm32l1xx_ll_wwdg.h>
#endif