// Copyright 2018 The Fuchsia Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style license that can be | |
// found in the LICENSE file. | |
#include <stdint.h> | |
#include "debug.h" | |
static volatile uint32_t* uart_fifo_dr = (uint32_t *)0x09000000; | |
static volatile uint32_t* uart_fifo_fr = (uint32_t *)0x09000018; | |
void uart_pputc(char c) | |
{ | |
/* spin while fifo is full */ | |
while (*uart_fifo_fr & (1<<5)) | |
; | |
*uart_fifo_dr = c; | |
} |