Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0
/*
 * Wrap-around code for a console using the
 * ARC io-routines.
 *
 * Copyright (c) 1998 Harald Koerfgen
 * Copyright (c) 2001 Ralf Baechle
 * Copyright (c) 2002 Thiemo Seufer
 */
#include <linux/tty.h>
#include <linux/major.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/fs.h>
#include <asm/setup.h>
#include <asm/sgialib.h>
 
static void prom_console_write(struct console *co, const char *s,
<------><------><------>       unsigned count)
{
<------>/* Do each character */
<------>while (count--) {
<------><------>if (*s == '\n')
<------><------><------>prom_putchar('\r');
<------><------>prom_putchar(*s++);
<------>}
}
 
static int prom_console_setup(struct console *co, char *options)
{
<------>if (prom_flags & PROM_FLAG_USE_AS_CONSOLE)
<------><------>return 0;
<------>return -ENODEV;
}
 
static struct console arc_cons = {
<------>.name		= "arc",
<------>.write		= prom_console_write,
<------>.setup		= prom_console_setup,
<------>.flags		= CON_PRINTBUFFER,
<------>.index		= -1,
};
 
/*
 *    Register console.
 */
 
static int __init arc_console_init(void)
{
<------>register_console(&arc_cons);
 
<------>return 0;
}
console_initcall(arc_console_init);