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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * NEC VR4100 series RTC platform device.
4 *
5 * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
6 */
7#include <linux/errno.h>
8#include <linux/init.h>
9#include <linux/smp.h>
10#include <linux/ioport.h>
11#include <linux/platform_device.h>
12
13#include <asm/cpu.h>
14#include <asm/vr41xx/irq.h>
15
16static struct resource rtc_type1_resource[] __initdata = {
17 {
18 .start = 0x0b0000c0,
19 .end = 0x0b0000df,
20 .flags = IORESOURCE_MEM,
21 },
22 {
23 .start = 0x0b0001c0,
24 .end = 0x0b0001df,
25 .flags = IORESOURCE_MEM,
26 },
27 {
28 .start = ELAPSEDTIME_IRQ,
29 .end = ELAPSEDTIME_IRQ,
30 .flags = IORESOURCE_IRQ,
31 },
32 {
33 .start = RTCLONG1_IRQ,
34 .end = RTCLONG1_IRQ,
35 .flags = IORESOURCE_IRQ,
36 },
37};
38
39static struct resource rtc_type2_resource[] __initdata = {
40 {
41 .start = 0x0f000100,
42 .end = 0x0f00011f,
43 .flags = IORESOURCE_MEM,
44 },
45 {
46 .start = 0x0f000120,
47 .end = 0x0f00013f,
48 .flags = IORESOURCE_MEM,
49 },
50 {
51 .start = ELAPSEDTIME_IRQ,
52 .end = ELAPSEDTIME_IRQ,
53 .flags = IORESOURCE_IRQ,
54 },
55 {
56 .start = RTCLONG1_IRQ,
57 .end = RTCLONG1_IRQ,
58 .flags = IORESOURCE_IRQ,
59 },
60};
61
62static int __init vr41xx_rtc_add(void)
63{
64 struct platform_device *pdev;
65 struct resource *res;
66 unsigned int num;
67 int retval;
68
69 pdev = platform_device_alloc("RTC", -1);
70 if (!pdev)
71 return -ENOMEM;
72
73 switch (current_cpu_type()) {
74 case CPU_VR4111:
75 case CPU_VR4121:
76 res = rtc_type1_resource;
77 num = ARRAY_SIZE(rtc_type1_resource);
78 break;
79 case CPU_VR4122:
80 case CPU_VR4131:
81 case CPU_VR4133:
82 res = rtc_type2_resource;
83 num = ARRAY_SIZE(rtc_type2_resource);
84 break;
85 default:
86 retval = -ENODEV;
87 goto err_free_device;
88 }
89
90 retval = platform_device_add_resources(pdev, res, num);
91 if (retval)
92 goto err_free_device;
93
94 retval = platform_device_add(pdev);
95 if (retval)
96 goto err_free_device;
97
98 return 0;
99
100err_free_device:
101 platform_device_put(pdev);
102
103 return retval;
104}
105device_initcall(vr41xx_rtc_add);
1/*
2 * NEC VR4100 series RTC platform device.
3 *
4 * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20#include <linux/errno.h>
21#include <linux/init.h>
22#include <linux/ioport.h>
23#include <linux/platform_device.h>
24
25#include <asm/cpu.h>
26#include <asm/vr41xx/irq.h>
27
28static struct resource rtc_type1_resource[] __initdata = {
29 {
30 .start = 0x0b0000c0,
31 .end = 0x0b0000df,
32 .flags = IORESOURCE_MEM,
33 },
34 {
35 .start = 0x0b0001c0,
36 .end = 0x0b0001df,
37 .flags = IORESOURCE_MEM,
38 },
39 {
40 .start = ELAPSEDTIME_IRQ,
41 .end = ELAPSEDTIME_IRQ,
42 .flags = IORESOURCE_IRQ,
43 },
44 {
45 .start = RTCLONG1_IRQ,
46 .end = RTCLONG1_IRQ,
47 .flags = IORESOURCE_IRQ,
48 },
49};
50
51static struct resource rtc_type2_resource[] __initdata = {
52 {
53 .start = 0x0f000100,
54 .end = 0x0f00011f,
55 .flags = IORESOURCE_MEM,
56 },
57 {
58 .start = 0x0f000120,
59 .end = 0x0f00013f,
60 .flags = IORESOURCE_MEM,
61 },
62 {
63 .start = ELAPSEDTIME_IRQ,
64 .end = ELAPSEDTIME_IRQ,
65 .flags = IORESOURCE_IRQ,
66 },
67 {
68 .start = RTCLONG1_IRQ,
69 .end = RTCLONG1_IRQ,
70 .flags = IORESOURCE_IRQ,
71 },
72};
73
74static int __init vr41xx_rtc_add(void)
75{
76 struct platform_device *pdev;
77 struct resource *res;
78 unsigned int num;
79 int retval;
80
81 pdev = platform_device_alloc("RTC", -1);
82 if (!pdev)
83 return -ENOMEM;
84
85 switch (current_cpu_type()) {
86 case CPU_VR4111:
87 case CPU_VR4121:
88 res = rtc_type1_resource;
89 num = ARRAY_SIZE(rtc_type1_resource);
90 break;
91 case CPU_VR4122:
92 case CPU_VR4131:
93 case CPU_VR4133:
94 res = rtc_type2_resource;
95 num = ARRAY_SIZE(rtc_type2_resource);
96 break;
97 default:
98 retval = -ENODEV;
99 goto err_free_device;
100 }
101
102 retval = platform_device_add_resources(pdev, res, num);
103 if (retval)
104 goto err_free_device;
105
106 retval = platform_device_add(pdev);
107 if (retval)
108 goto err_free_device;
109
110 return 0;
111
112err_free_device:
113 platform_device_put(pdev);
114
115 return retval;
116}
117device_initcall(vr41xx_rtc_add);