1/*
2 *  NEC VR4100 series GIU platform device.
3 *
4 *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
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/giu.h>
27#include <asm/vr41xx/irq.h>
28
29static struct resource giu_50pins_pullupdown_resource[] __initdata = {
30	{
31		.start	= 0x0b000100,
32		.end	= 0x0b00011f,
33		.flags	= IORESOURCE_MEM,
34	},
35	{
36		.start	= 0x0b0002e0,
37		.end	= 0x0b0002e3,
38		.flags	= IORESOURCE_MEM,
39	},
40	{
41		.start	= GIUINT_IRQ,
42		.end	= GIUINT_IRQ,
43		.flags	= IORESOURCE_IRQ,
44	},
45};
46
47static struct resource giu_36pins_resource[] __initdata = {
48	{
49		.start	= 0x0f000140,
50		.end	= 0x0f00015f,
51		.flags	= IORESOURCE_MEM,
52	},
53	{
54		.start	= GIUINT_IRQ,
55		.end	= GIUINT_IRQ,
56		.flags	= IORESOURCE_IRQ,
57	},
58};
59
60static struct resource giu_48pins_resource[] __initdata = {
61	{
62		.start	= 0x0f000140,
63		.end	= 0x0f000167,
64		.flags	= IORESOURCE_MEM,
65	},
66	{
67		.start	= GIUINT_IRQ,
68		.end	= GIUINT_IRQ,
69		.flags	= IORESOURCE_IRQ,
70	},
71};
72
73static int __init vr41xx_giu_add(void)
74{
75	struct platform_device *pdev;
76	struct resource *res;
77	unsigned int num;
78	int retval;
79
80	pdev = platform_device_alloc("GIU", -1);
81	if (!pdev)
82		return -ENOMEM;
83
84	switch (current_cpu_data.cputype) {
85	case CPU_VR4111:
86	case CPU_VR4121:
87		pdev->id = GPIO_50PINS_PULLUPDOWN;
88		res = giu_50pins_pullupdown_resource;
89		num = ARRAY_SIZE(giu_50pins_pullupdown_resource);
90		break;
91	case CPU_VR4122:
92	case CPU_VR4131:
93		pdev->id = GPIO_36PINS;
94		res = giu_36pins_resource;
95		num = ARRAY_SIZE(giu_36pins_resource);
96		break;
97	case CPU_VR4133:
98		pdev->id = GPIO_48PINS_EDGE_SELECT;
99		res = giu_48pins_resource;
100		num = ARRAY_SIZE(giu_48pins_resource);
101		break;
102	default:
103		retval = -ENODEV;
104		goto err_free_device;
105	}
106
107	retval = platform_device_add_resources(pdev, res, num);
108	if (retval)
109		goto err_free_device;
110
111	retval = platform_device_add(pdev);
112	if (retval)
113		goto err_free_device;
114
115	return 0;
116
117err_free_device:
118	platform_device_put(pdev);
119
120	return retval;
121}
122device_initcall(vr41xx_giu_add);
123