Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[platform/kernel/linux-starfive.git] / arch / mips / sgi-ip30 / ip30-console.c
1 // SPDX-License-Identifier: GPL-2.0
2
3 #include <linux/io.h>
4
5 #include <asm/sn/ioc3.h>
6
7 static inline struct ioc3_uartregs *console_uart(void)
8 {
9         struct ioc3 *ioc3;
10
11         ioc3 = (struct ioc3 *)((void *)(0x900000001f600000));
12         return &ioc3->sregs.uarta;
13 }
14
15 void prom_putchar(char c)
16 {
17         struct ioc3_uartregs *uart = console_uart();
18
19         while ((readb(&uart->iu_lsr) & 0x20) == 0)
20                 cpu_relax();
21
22         writeb(c, &uart->iu_thr);
23 }