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[bsp/raspi3-64]fix gpio drvier

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bigmagic
2020-02-28 17:49:50 +08:00
parent dc47abf44b
commit ff10eaed9c
15 changed files with 688 additions and 1680 deletions
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24
bsp/raspberry-pi/raspi3-64/driver/drv_uart.c
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@@ -12,11 +12,10 @@
#include <rtthread.h>
#include <rtdevice.h>
#include "raspi.h"
#include "board.h"
#include "drv_uart.h"
#include <rtdevice.h>
#define AUX_BASE (0x3F000000 + 0x215000)
struct hw_uart_device
@@ -34,20 +33,19 @@ static rt_err_t uart_configure(struct rt_serial_device *serial, struct serial_co
if (uart->hw_base == AUX_BASE)
{
rt_uint32_t value;
rt_uint32_t value;
/* GPIO function set */
value = GPIO_GPFSEL1;
value &= ~(7<<12); /* GPIO14 */
value |= 2<<12 ; /* ALT5 */
value &= ~(7<<15); /* GPIO15 */
value |= 2<<15 ; /* ALT5 */
GPIO_GPFSEL1 = value;
value = BCM283X_GPIO_GPFSEL(1);
value &= ~(7 << 12); /* GPIO14 */
value |= 2 << 12 ; /* ALT5 */
value &= ~(7 << 15); /* GPIO15 */
value |= 2 << 15 ; /* ALT5 */
BCM283X_GPIO_GPFSEL(1) = value;
/* PullUD disable */
GPIO_GPPUD = 0;
GPIO_GPPUDCLK0 = (1 << 14) | (1 << 15);
GPIO_GPPUDCLK0 = 0;
BCM283X_GPIO_GPPUD = 0;
BCM283X_GPIO_GPPUDCLK(0) = (1 << 14) | (1 << 15);
BCM283X_GPIO_GPPUDCLK(0) = 0;
AUX_ENABLES(uart->hw_base) = 1; /* Enable UART1 */
AUX_MU_IER_REG(uart->hw_base) = 0; /* Disable interrupt */