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soc: arm: uart: Add STM32G0X UART support

Add UART support for STM32G0X SoC series.

Signed-off-by: Philippe Retornaz <philippe@shapescale.com>
Signed-off-by: Francois Ramu <francois.ramu@st.com>

Signed-off-by: Francois Ramu <francois.ramu@st.com>
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FRASTM authored and MaureenHelm committed Jun 26, 2019
1 parent f9d2a41 commit 26c38a49a23ac9371e657cb39fdf1bcfb258a7c1
Showing with 41 additions and 0 deletions.
  1. +18 −0 dts/arm/st/g0/stm32g0.dtsi
  2. +19 −0 soc/arm/st_stm32/stm32g0/dts_fixup.h
  3. +4 −0 soc/arm/st_stm32/stm32g0/soc.h
@@ -106,6 +106,24 @@
};
};

usart1: serial@40013800 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40013800 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB2 0x00004000>;
interrupts = <27 0>;
status = "disabled";
label = "UART_1";
};

usart2: serial@40004400 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40004400 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00020000>;
interrupts = <28 0>;
status = "disabled";
label = "UART_2";
};

timers3: timers@40000400 {
compatible = "st,stm32-timers";
reg = <0x40000400 0x400>;
@@ -61,4 +61,23 @@
#define DT_GPIO_STM32_GPIOF_CLOCK_BITS DT_ST_STM32_GPIO_50001400_CLOCK_BITS
#define DT_GPIO_STM32_GPIOF_CLOCK_BUS DT_ST_STM32_GPIO_50001400_CLOCK_BUS

/* there is no reference to GPIOE, GPIOG and GPIOH in the dts files */

#define DT_UART_STM32_USART_1_BASE_ADDRESS DT_ST_STM32_USART_40013800_BASE_ADDRESS
#define DT_UART_STM32_USART_1_BAUD_RATE DT_ST_STM32_USART_40013800_CURRENT_SPEED
#define DT_UART_STM32_USART_1_IRQ_PRI DT_ST_STM32_USART_40013800_IRQ_0_PRIORITY
#define DT_UART_STM32_USART_1_NAME DT_ST_STM32_USART_40013800_LABEL
#define DT_USART_1_IRQ DT_ST_STM32_USART_40013800_IRQ_0
#define DT_UART_STM32_USART_1_CLOCK_BITS DT_ST_STM32_USART_40013800_CLOCK_BITS
#define DT_UART_STM32_USART_1_CLOCK_BUS DT_ST_STM32_USART_40013800_CLOCK_BUS

#define DT_UART_STM32_USART_2_BASE_ADDRESS DT_ST_STM32_USART_40004400_BASE_ADDRESS
#define DT_UART_STM32_USART_2_BAUD_RATE DT_ST_STM32_USART_40004400_CURRENT_SPEED
#define DT_UART_STM32_USART_2_IRQ_PRI DT_ST_STM32_USART_40004400_IRQ_0_PRIORITY
#define DT_UART_STM32_USART_2_NAME DT_ST_STM32_USART_40004400_LABEL
#define DT_USART_2_IRQ DT_ST_STM32_USART_40004400_IRQ_0
#define DT_UART_STM32_USART_2_CLOCK_BITS DT_ST_STM32_USART_40004400_CLOCK_BITS
#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

/* End of SoC Level DTS fixup file */
@@ -44,6 +44,10 @@
#include <stm32g0xx_ll_gpio.h>
#endif

#ifdef CONFIG_SERIAL_HAS_DRIVER
#include <stm32g0xx_ll_usart.h>
#endif

#endif /* !_ASMLANGUAGE */

#endif /* _STM32G0_SOC_H_ */

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