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added explicit GPIO mappings for UART

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This commit is contained in:
Bogdan Marinescu 2012-08-17 20:27:22 +03:00
parent 53f5807cee
commit 6b7116caf0
1 changed files with 4 additions and 1 deletions
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5
src/platform/lm3s/platform.c
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@ -449,6 +449,7 @@ const u32 uart_base[] = { UART0_BASE, UART1_BASE, UART2_BASE };
static const u32 uart_sysctl[] = { SYSCTL_PERIPH_UART0, SYSCTL_PERIPH_UART1, SYSCTL_PERIPH_UART2 };
static const u32 uart_gpio_base[] = { GPIO_PORTA_BASE, GPIO_PORTD_BASE, GPIO_PORTG_BASE };
static const u8 uart_gpio_pins[] = { GPIO_PIN_0 | GPIO_PIN_1, GPIO_PIN_2 | GPIO_PIN_3, GPIO_PIN_0 | GPIO_PIN_1 };
static const u32 uart_gpiofunc[] = { GPIO_PA0_U0RX, GPIO_PA1_U0TX, GPIO_PD2_U1RX, GPIO_PD3_U1TX, GPIO_PG0_U2RX, GPIO_PG1_U2TX };
static void uarts_init()
{
@ -463,7 +464,9 @@ u32 platform_uart_setup( unsigned id, u32 baud, int databits, int parity, int st
if( id < NUM_UART )
{
MAP_GPIOPinTypeUART(uart_gpio_base [ id ], uart_gpio_pins[ id ]);
MAP_GPIOPinConfigure( uart_gpiofunc[ id << 1 ] );
MAP_GPIOPinConfigure( uart_gpiofunc[ ( id << 1 ) + 1 ] );
MAP_GPIOPinTypeUART( uart_gpio_base[ id ], uart_gpio_pins[ id ] );
switch( databits )
{