1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2007 Google, Inc.
4*4882a593Smuzhiyun * Copyright (C) 2011 Intel, Inc.
5*4882a593Smuzhiyun * Copyright (C) 2013 Intel, Inc.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/kernel.h>
9*4882a593Smuzhiyun #include <linux/irq.h>
10*4882a593Smuzhiyun #include <linux/platform_device.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun /*
13*4882a593Smuzhiyun * Where in virtual device memory the IO devices (timers, system controllers
14*4882a593Smuzhiyun * and so on)
15*4882a593Smuzhiyun */
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #define GOLDFISH_PDEV_BUS_BASE (0xff001000)
18*4882a593Smuzhiyun #define GOLDFISH_PDEV_BUS_END (0xff7fffff)
19*4882a593Smuzhiyun #define GOLDFISH_PDEV_BUS_IRQ (4)
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun #define GOLDFISH_TTY_BASE (0x2000)
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun static struct resource goldfish_pdev_bus_resources[] = {
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun .start = GOLDFISH_PDEV_BUS_BASE,
26*4882a593Smuzhiyun .end = GOLDFISH_PDEV_BUS_END,
27*4882a593Smuzhiyun .flags = IORESOURCE_MEM,
28*4882a593Smuzhiyun },
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun .start = GOLDFISH_PDEV_BUS_IRQ,
31*4882a593Smuzhiyun .end = GOLDFISH_PDEV_BUS_IRQ,
32*4882a593Smuzhiyun .flags = IORESOURCE_IRQ,
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun };
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun static bool goldfish_enable __initdata;
37*4882a593Smuzhiyun
goldfish_setup(char * str)38*4882a593Smuzhiyun static int __init goldfish_setup(char *str)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun goldfish_enable = true;
41*4882a593Smuzhiyun return 0;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun __setup("goldfish", goldfish_setup);
44*4882a593Smuzhiyun
goldfish_init(void)45*4882a593Smuzhiyun static int __init goldfish_init(void)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun if (!goldfish_enable)
48*4882a593Smuzhiyun return -ENODEV;
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun platform_device_register_simple("goldfish_pdev_bus", -1,
51*4882a593Smuzhiyun goldfish_pdev_bus_resources, 2);
52*4882a593Smuzhiyun return 0;
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun device_initcall(goldfish_init);
55