1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 *  linux/arch/arm/mach-footbridge/isa.c
4 *
5 *  Copyright (C) 2004 Russell King.
6 */
7#include <linux/init.h>
8#include <linux/serial_8250.h>
9
10#include <asm/irq.h>
11#include <asm/hardware/dec21285.h>
12
13#include "common.h"
14
15static struct resource rtc_resources[] = {
16	[0] = {
17		.start	= 0x70,
18		.end	= 0x73,
19		.flags	= IORESOURCE_IO,
20	},
21	[1] = {
22		.start	= IRQ_ISA_RTC_ALARM,
23		.end	= IRQ_ISA_RTC_ALARM,
24		.flags	= IORESOURCE_IRQ,
25	}
26};
27
28static struct platform_device rtc_device = {
29	.name		= "rtc_cmos",
30	.id		= -1,
31	.resource	= rtc_resources,
32	.num_resources	= ARRAY_SIZE(rtc_resources),
33};
34
35static struct resource serial_resources[] = {
36	[0] = {
37		.start	= 0x3f8,
38		.end	= 0x3ff,
39		.flags	= IORESOURCE_IO,
40	},
41	[1] = {
42		.start	= 0x2f8,
43		.end	= 0x2ff,
44		.flags	= IORESOURCE_IO,
45	},
46};
47
48static struct plat_serial8250_port serial_platform_data[] = {
49	{
50		.iobase		= 0x3f8,
51		.irq		= IRQ_ISA_UART,
52		.uartclk	= 1843200,
53		.regshift	= 0,
54		.iotype		= UPIO_PORT,
55		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
56	},
57	{
58		.iobase		= 0x2f8,
59		.irq		= IRQ_ISA_UART2,
60		.uartclk	= 1843200,
61		.regshift	= 0,
62		.iotype		= UPIO_PORT,
63		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
64	},
65	{ },
66};
67
68static struct platform_device serial_device = {
69	.name			= "serial8250",
70	.id			= PLAT8250_DEV_PLATFORM,
71	.dev			= {
72		.platform_data	= serial_platform_data,
73	},
74	.resource		= serial_resources,
75	.num_resources		= ARRAY_SIZE(serial_resources),
76};
77
78static int __init footbridge_isa_init(void)
79{
80	int err = 0;
81
82	/* Personal server doesn't have RTC */
83	isa_rtc_init();
84	err = platform_device_register(&rtc_device);
85	if (err)
86		printk(KERN_ERR "Unable to register RTC device: %d\n", err);
87
88	err = platform_device_register(&serial_device);
89	if (err)
90		printk(KERN_ERR "Unable to register serial device: %d\n", err);
91	return 0;
92}
93
94arch_initcall(footbridge_isa_init);
95