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android-kvm / linux / 87aa63000c484bfb9909989316f615240dfee018 / . / arch / mips / vr41xx / common / siu.c
blob: 54eae56108fb94db06a5add150e8baad4ef5dbfe [file] [log] [blame]
Yoichi Yuasa89164942007-05-09 00:03:02 +0900[diff] [blame]1/*
2 * NEC VR4100 series SIU platform device.
3 *
Yoichi Yuasaada8e952009-07-03 00:39:38 +0900[diff] [blame]4 * Copyright (C) 2007-2008 Yoichi Yuasa <yuasa@linux-mips.org>
Yoichi Yuasa89164942007-05-09 00:03:02 +0900[diff] [blame]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#include <linux/serial_core.h>
25
26#include <asm/cpu.h>
27#include <asm/vr41xx/siu.h>
28
29static unsigned int siu_type1_ports[SIU_PORTS_MAX] __initdata = {
30 PORT_VR41XX_SIU,
31 PORT_UNKNOWN,
32};
33
34static struct resource siu_type1_resource[] __initdata = {
35 {
36 .start = 0x0c000000,
37 .end = 0x0c00000a,
38 .flags = IORESOURCE_MEM,
39 },
40 {
41 .start = SIU_IRQ,
42 .end = SIU_IRQ,
43 .flags = IORESOURCE_IRQ,
44 },
45};
46
47static unsigned int siu_type2_ports[SIU_PORTS_MAX] __initdata = {
48 PORT_VR41XX_SIU,
49 PORT_VR41XX_DSIU,
50};
51
52static struct resource siu_type2_resource[] __initdata = {
53 {
54 .start = 0x0f000800,
55 .end = 0x0f00080a,
56 .flags = IORESOURCE_MEM,
57 },
58 {
59 .start = 0x0f000820,
60 .end = 0x0f000829,
61 .flags = IORESOURCE_MEM,
62 },
63 {
64 .start = SIU_IRQ,
65 .end = SIU_IRQ,
66 .flags = IORESOURCE_IRQ,
67 },
68 {
69 .start = DSIU_IRQ,
70 .end = DSIU_IRQ,
71 .flags = IORESOURCE_IRQ,
72 },
73};
74
75static int __init vr41xx_siu_add(void)
76{
77 struct platform_device *pdev;
78 struct resource *res;
79 unsigned int num;
80 int retval;
81
82 pdev = platform_device_alloc("SIU", -1);
83 if (!pdev)
84 return -ENOMEM;
85
Ralf Baechle10cc3522007-10-11 23:46:15 +0100[diff] [blame]86 switch (current_cpu_type()) {
Yoichi Yuasa89164942007-05-09 00:03:02 +0900[diff] [blame]87 case CPU_VR4111:
88 case CPU_VR4121:
89 pdev->dev.platform_data = siu_type1_ports;
90 res = siu_type1_resource;
91 num = ARRAY_SIZE(siu_type1_resource);
92 break;
93 case CPU_VR4122:
94 case CPU_VR4131:
95 case CPU_VR4133:
96 pdev->dev.platform_data = siu_type2_ports;
97 res = siu_type2_resource;
98 num = ARRAY_SIZE(siu_type2_resource);
99 break;
100 default:
101 retval = -ENODEV;
102 goto err_free_device;
103 }
104
105 retval = platform_device_add_resources(pdev, res, num);
106 if (retval)
107 goto err_free_device;
108
109 retval = platform_device_add(pdev);
110 if (retval)
111 goto err_free_device;
112
113 return 0;
114
115err_free_device:
116 platform_device_put(pdev);
117
118 return retval;
119}
120device_initcall(vr41xx_siu_add);
Yoichi Yuasafc3f3412008-04-28 02:14:08 -0700[diff] [blame]121
122void __init vr41xx_siu_setup(void)
123{
124 struct uart_port port;
125 struct resource *res;
126 unsigned int *type;
127 int i;
128
129 switch (current_cpu_type()) {
130 case CPU_VR4111:
131 case CPU_VR4121:
132 type = siu_type1_ports;
133 res = siu_type1_resource;
134 break;
135 case CPU_VR4122:
136 case CPU_VR4131:
137 case CPU_VR4133:
138 type = siu_type2_ports;
139 res = siu_type2_resource;
140 break;
141 default:
142 return;
143 }
144
145 for (i = 0; i < SIU_PORTS_MAX; i++) {
146 port.line = i;
147 port.type = type[i];
148 if (port.type == PORT_UNKNOWN)
149 break;
150 port.mapbase = res[i].start;
151 port.membase = (unsigned char __iomem *)KSEG1ADDR(res[i].start);
152 vr41xx_siu_early_setup(&port);
153 }
154}