| // SPDX-License-Identifier: GPL-2.0 | |
| #include <linux/io.h> | |
| #include <asm/sn/ioc3.h> | |
| #include <asm/setup.h> | |
| static inline struct ioc3_uartregs *console_uart(void) | |
| { | |
| struct ioc3 *ioc3; | |
| ioc3 = (struct ioc3 *)((void *)(0x900000001f600000)); | |
| return &ioc3->sregs.uarta; | |
| } | |
| void prom_putchar(char c) | |
| { | |
| struct ioc3_uartregs *uart = console_uart(); | |
| while ((readb(&uart->iu_lsr) & 0x20) == 0) | |
| cpu_relax(); | |
| writeb(c, &uart->iu_thr); | |
| } |