File: bootrom.c

package info (click to toggle)
linux 5.10.46-4
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,191,996 kB
  • sloc: ansic: 19,502,768; asm: 263,759; sh: 73,960; makefile: 44,724; perl: 34,644; python: 32,387; cpp: 6,070; yacc: 4,755; lex: 2,742; awk: 1,214; ruby: 25; sed: 5
file content (40 lines) | stat: -rw-r--r-- 844 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
// SPDX-License-Identifier: GPL-2.0-only
/*
 *
 * Copyright (C) 2013 John Crispin <john@phrozen.org>
 */

#include <linux/debugfs.h>
#include <linux/seq_file.h>

#define BOOTROM_OFFSET	0x10118000
#define BOOTROM_SIZE	0x8000

static void __iomem *membase = (void __iomem *) KSEG1ADDR(BOOTROM_OFFSET);

static int bootrom_show(struct seq_file *s, void *unused)
{
	seq_write(s, membase, BOOTROM_SIZE);

	return 0;
}

static int bootrom_open(struct inode *inode, struct file *file)
{
	return single_open(file, bootrom_show, NULL);
}

static const struct file_operations bootrom_file_ops = {
	.open		= bootrom_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int __init bootrom_setup(void)
{
	debugfs_create_file("bootrom", 0444, NULL, NULL, &bootrom_file_ops);
	return 0;
}

postcore_initcall(bootrom_setup);