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authorYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>2007-05-08 11:03:02 -0400
committerRalf Baechle <ralf@linux-mips.org>2007-07-12 12:41:13 -0400
commit891649409edbed528728b4a104d29e43e9d7473a (patch)
tree837091ee652d4b6905736c8d12cdc74397d6d1b7 /arch/mips
parent8c41286edffef0d6e7fb770b178275c8beb24055 (diff)
[MIPS] separate platform_device registration for VR41xx serial interface
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/vr41xx/common/Makefile2
-rw-r--r--arch/mips/vr41xx/common/siu.c120
2 files changed, 121 insertions, 1 deletions
diff --git a/arch/mips/vr41xx/common/Makefile b/arch/mips/vr41xx/common/Makefile
index f842783acd86..fcf94d7b1478 100644
--- a/arch/mips/vr41xx/common/Makefile
+++ b/arch/mips/vr41xx/common/Makefile
@@ -2,4 +2,4 @@
2# Makefile for common code of the NEC VR4100 series. 2# Makefile for common code of the NEC VR4100 series.
3# 3#
4 4
5obj-y += bcu.o cmu.o icu.o init.o irq.o pmu.o type.o 5obj-y += bcu.o cmu.o icu.o init.o irq.o pmu.o siu.o type.o
diff --git a/arch/mips/vr41xx/common/siu.c b/arch/mips/vr41xx/common/siu.c
new file mode 100644
index 000000000000..a1e774142163
--- /dev/null
+++ b/arch/mips/vr41xx/common/siu.c
@@ -0,0 +1,120 @@
1/*
2 * NEC VR4100 series SIU 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#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
86 switch (current_cpu_data.cputype) {
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);