| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * This file is licensed under the terms of the GNU General Public |
| 3 | * License version 2. This program is licensed "as is" without any |
| 4 | * warranty of any kind, whether express or implied. |
| 5 | */ |
| 6 | |
| 7 | #define UART0_PHYS_BASE (0xf1000000 + 0x12000) |
| 8 | |
| 9 | #define UART_THR ((volatile unsigned char *)(UART0_PHYS_BASE + 0x0)) |
| 10 | #define UART_LSR ((volatile unsigned char *)(UART0_PHYS_BASE + 0x14)) |
| 11 | |
| 12 | #define LSR_THRE 0x20 |
| 13 | |
| 14 | static void putc(const char c) |
| 15 | { |
| 16 | int i; |
| 17 | |
| 18 | for (i = 0; i < 0x1000; i++) { |
| 19 | /* Transmit fifo not full? */ |
| 20 | if (*UART_LSR & LSR_THRE) |
| 21 | break; |
| 22 | } |
| 23 | |
| 24 | *UART_THR = c; |
| 25 | } |
| 26 | |
| 27 | static void flush(void) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | /* |
| 32 | * nothing to do |
| 33 | */ |
| 34 | #define arch_decomp_setup() |