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uart: stm32: Add support for STM32L4X

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Deal with STM32L4X additions for clock and interrupt handling to the
uart driver.

Change-Id: I6e8dafb132dafea54b8f31a3a5cb6e35a207574d
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Erwan Gouriou 2016-11-17 10:00:49 -06:00 • committed by Kumar Gala
commit 0bf6c3860d
2 changed files with 17 additions and 5 deletions
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16
drivers/serial/uart_stm32.c
View file

@ -296,9 +296,9 @@ static int uart_stm32_init(struct device *dev)
__uart_stm32_get_clock(dev);
/* enable clock */
#ifdef CONFIG_SOC_SERIES_STM32F1X
#if defined(CONFIG_SOC_SERIES_STM32F1X) || defined(CONFIG_SOC_SERIES_STM32L4X)
clock_control_on(data->clock, config->clock_subsys);
#elif CONFIG_SOC_SERIES_STM32F4X
#elif defined(CONFIG_SOC_SERIES_STM32F4X)
clock_control_on(data->clock,
(clock_control_subsys_t *)&config->pclken);
#endif
@ -338,6 +338,8 @@ static const struct uart_stm32_config uart_stm32_dev_cfg_1 = {
#elif CONFIG_SOC_SERIES_STM32F4X
.pclken = { .bus = STM32F4X_CLOCK_BUS_APB2,
.enr = STM32F4X_CLOCK_ENABLE_USART1 },
#elif CONFIG_SOC_SERIES_STM32L4X
.clock_subsys = UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_USART1),
#endif /* CONFIG_SOC_SERIES_STM32FX */
};
@ -360,6 +362,8 @@ static void uart_stm32_irq_config_func_1(struct device *dev)
#define PORT_1_IRQ STM32F1_IRQ_USART1
#elif CONFIG_SOC_SERIES_STM32F4X
#define PORT_1_IRQ STM32F4_IRQ_USART1
#elif CONFIG_SOC_SERIES_STM32L4X
#define PORT_1_IRQ STM32L4_IRQ_USART1
#endif
IRQ_CONNECT(PORT_1_IRQ,
CONFIG_UART_STM32_PORT_1_IRQ_PRI,
@ -390,6 +394,8 @@ static const struct uart_stm32_config uart_stm32_dev_cfg_2 = {
#elif CONFIG_SOC_SERIES_STM32F4X
.pclken = { .bus = STM32F4X_CLOCK_BUS_APB1,
.enr = STM32F4X_CLOCK_ENABLE_USART2 },
#elif CONFIG_SOC_SERIES_STM32L4X
.clock_subsys = UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_USART2),
#endif /* CONFIG_SOC_SERIES_STM32FX */
};
@ -412,6 +418,8 @@ static void uart_stm32_irq_config_func_2(struct device *dev)
#define PORT_2_IRQ STM32F1_IRQ_USART2
#elif CONFIG_SOC_SERIES_STM32F4X
#define PORT_2_IRQ STM32F4_IRQ_USART2
#elif CONFIG_SOC_SERIES_STM32L4X
#define PORT_2_IRQ STM32L4_IRQ_USART2
#endif
IRQ_CONNECT(PORT_2_IRQ,
CONFIG_UART_STM32_PORT_2_IRQ_PRI,
@ -441,6 +449,8 @@ static const struct uart_stm32_config uart_stm32_dev_cfg_3 = {
.clock_subsys = UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_USART3),
#elif CONFIG_SOC_SERIES_STM32F4X
.clock_subsys = UINT_TO_POINTER(STM32F40X_CLOCK_SUBSYS_USART3),
#elif CONFIG_SOC_SERIES_STM32L4X
.clock_subsys = UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_USART3),
#endif /* CONFIG_SOC_SERIES_STM32F4X */
};
@ -463,6 +473,8 @@ static void uart_stm32_irq_config_func_3(struct device *dev)
#define PORT_3_IRQ STM32F1_IRQ_USART3
#elif CONFIG_SOC_SERIES_STM32F4X
#define PORT_3_IRQ STM32F4_IRQ_USART3
#elif CONFIG_SOC_SERIES_STM32L4X
#define PORT_3_IRQ STM32L4_IRQ_USART3
#endif
IRQ_CONNECT(PORT_3_IRQ,
CONFIG_UART_STM32_PORT_3_IRQ_PRI,

6
drivers/serial/uart_stm32.h
View file

@ -15,7 +15,7 @@
*/
/**
* @brief Driver for UART port on STM32F10x, STM32F40x family processor.
* @brief Driver for UART port on STM32 family processor.
*
*/
@ -26,9 +26,9 @@
struct uart_stm32_config {
struct uart_device_config uconf;
/* clock subsystem driving this peripheral */
#ifdef CONFIG_SOC_SERIES_STM32F1X
#if defined(CONFIG_SOC_SERIES_STM32F1X) || defined(CONFIG_SOC_SERIES_STM32L4X)
clock_control_subsys_t clock_subsys;
#elif CONFIG_SOC_SERIES_STM32F4X
#elif defined(CONFIG_SOC_SERIES_STM32F4X)
struct stm32f4x_pclken pclken;
#endif
};