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soc: arm: st_stm32: add driver lptimer management to stm32l4 series

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This patch introduces the support of the Low Power Timer
     for the STM32L4xx from STMicroelectronics.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2019-11-07 09:29:07 +01:00 • committed by Kumar Gala
commit d0c9234d70
3 changed files with 24 additions and 0 deletions
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12
dts/arm/st/l4/stm32l4.dtsi
View file

@ -331,6 +331,18 @@
status = "disabled";
label = "DMA_2";
};
lptim1: timers@40007c00 {
compatible = "st,stm32-timers";
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x80000000>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40007c00 0x400>;
interrupts = <65 0>;
interrupt-names = "wakeup";
status = "disabled";
label = "LPTIM_1";
};
};
};

7
soc/arm/st_stm32/stm32l4/dts_fixup.h
View file

@ -328,4 +328,11 @@
#define DT_ADC_1_CLOCK_BITS DT_ST_STM32_ADC_50040000_CLOCK_BITS_0
#define DT_ADC_1_CLOCK_BUS DT_ST_STM32_ADC_50040000_CLOCK_BUS_0
#define DT_LPTIM_1_BASE_ADDRESS DT_ST_STM32_TIMERS_40007C00_BASE_ADDRESS
#define DT_LPTIM_1_IRQ DT_ST_STM32_TIMERS_40007C00_IRQ_0
#define DT_LPTIM_1_IRQ_PRI DT_ST_STM32_TIMERS_40007C00_IRQ_0_PRIORITY
#define DT_LPTIM_1_NAME DT_ST_STM32_TIMERS_40007C00_LABEL
#define DT_LPTIM_1_CLOCK_BITS DT_ST_STM32_TIMERS_40007C00_CLOCK_BITS_0
#define DT_LPTIM_1_CLOCK_BUS DT_ST_STM32_TIMERS_40007C00_CLOCK_BUS_0
/* End of SoC Level DTS fixup file */

5
soc/arm/st_stm32/stm32l4/soc.h
View file

@ -94,6 +94,11 @@
#include <stm32l4xx_ll_dma.h>
#endif
#ifdef CONFIG_STM32_LPTIM_TIMER
#include <stm32l4xx_ll_lptim.h>
#include <stm32l4xx_ll_system.h>
#endif
#endif /* !_ASMLANGUAGE */
#endif /* _STM32L4X_SOC_H_ */