| // 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; | |
| } |