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EFM32: Need to configure UART GPIOs as outputs

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This commit is contained in:
Gregory Nutt 2014-10-28 14:50:15 -06:00
parent 28ac9e5841
commit 7edef0f970
1 changed files with 70 additions and 4 deletions
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74
arch/arm/src/efm32/efm32_lowputc.c
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@ -51,6 +51,8 @@
#include "chip/efm32_usart.h"
#include "chip/efm32_leuart.h"
#include "chip/efm32_cmu.h"
#include "efm32_gpio.h"
#include "efm32_lowputc.h"
/****************************************************************************
@ -341,9 +343,71 @@ void efm32_lowsetup(void)
putreg32(regval, EFM32_CMU_LFBCLKEN0);
#endif /* HAVE_LEUART_DEVICE */
/* Set location in the ROUTE register */
#if defined(HAVE_UART_DEVICE) || defined(HAVE_SPI_DEVICE)
/* Enable output on U[S]ART output pins */
#ifdef CONFIG_EFM32_USART0
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_USART0_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_USART0_TX_GPIO);
#ifdef CONFIG_EFM32_USART0_ISSPI
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_USART0_CLK_GPIO);
#endif
#endif
#ifdef CONFIG_EFM32_USART1
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_USART1_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_USART1_TX_GPIO);
#ifdef CONFIG_EFM32_USART1_ISSPI
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_USART1_CLK_GPIO);
#endif
#endif
#ifdef CONFIG_EFM32_USART2
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_USART2_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_USART2_TX_GPIO);
#ifdef CONFIG_EFM32_USART2_ISSPI
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_USART2_CLK_GPIO);
#endif
#endif
#ifdef CONFIG_EFM32_UART0
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_UART0_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_UART0_TX_GPIO);
#endif
#ifdef CONFIG_EFM32_UART1
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_UART1_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_UART1_TX_GPIO);
#endif
#endif /* HAVE_UART_DEVICE */
#ifdef HAVE_LEUART_DEVICE
/* Enable output on LEUART output pins */
#ifdef CONFIG_EFM32_LEUART0
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_LEUART0_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_LEUART0_TX_GPIO);
#endif
#ifdef CONFIG_EFM32_LEUART1
efm32_configgpio(GPIO_INPUT | GPIO_INT_NONE | BOARD_LEUART1_RX_GPIO);
efm32_configgpio(GPIO_OUTPUT_PUSHPULL | GPIO_OUTPUT_CLEAR |
GPIO_DRIVE_STANDARD | BOARD_LEUART1_TX_GPIO);
#endif
#endif /* HAVE_LEUART_DEVICE */
#if defined(HAVE_UART_DEVICE) || defined(HAVE_SPI_DEVICE)
/* Set location in the U[S]ART ROUTE registers */
#ifdef HAVE_UART_DEVICE
#ifdef CONFIG_EFM32_USART0
regval = (USART_ROUTE_RXPEN | USART_ROUTE_TXPEN |
(BOARD_USART0_ROUTE_LOCATION << _USART_ROUTE_LOCATION_SHIFT));
@ -385,13 +449,15 @@ void efm32_lowsetup(void)
#endif /* HAVE_UART_DEVICE */
#ifdef HAVE_LEUART_DEVICE
#ifdef CONFIG_EFM32_UART0
/* Set location in the LEUART ROUTE registers */
#ifdef CONFIG_EFM32_LEUART0
regval = (LEUART_ROUTE_RXPEN | LEUART_ROUTE_TXPEN |
(BOARD_LEUART0_ROUTE_LOCATION << _LEUART_ROUTE_LOCATION_SHIFT));
putreg32(regval, EFM32_LEUART0_ROUTE);
#endif
#ifdef CONFIG_EFM32_UART1
#ifdef CONFIG_EFM32_LEUART1
regval = (LEUART_ROUTE_RXPEN | LEUART_ROUTE_TXPEN |
(BOARD_LEUART1_ROUTE_LOCATION << _LEUART_ROUTE_LOCATION_SHIFT));
putreg32(regval, EFM32_LEUART1_ROUTE);