| // 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" | |
| #define LPUART_STAT (0x14) | |
| #define LPUART_STAT_TDRE (1 << 23) | |
| #define LPUART_DATA (0x1c) | |
| #define UARTREG(reg) (*(volatile uint32_t*)(0x5a060000 + (reg))) | |
| void uart_pputc(char c) { | |
| while (!(UARTREG(LPUART_STAT) & LPUART_STAT_TDRE)) | |
| ; | |
| UARTREG(LPUART_DATA) = c; | |
| } |