diff options
Diffstat (limited to 'arch/mips/vr41xx')
-rw-r--r-- | arch/mips/vr41xx/common/Makefile | 2 | ||||
-rw-r--r-- | arch/mips/vr41xx/common/giu.c | 122 |
2 files changed, 123 insertions, 1 deletions
diff --git a/arch/mips/vr41xx/common/Makefile b/arch/mips/vr41xx/common/Makefile index fcf94d7b1478..22b074e72121 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 | ||
5 | obj-y += bcu.o cmu.o icu.o init.o irq.o pmu.o siu.o type.o | 5 | obj-y += bcu.o cmu.o giu.o icu.o init.o irq.o pmu.o siu.o type.o |
diff --git a/arch/mips/vr41xx/common/giu.c b/arch/mips/vr41xx/common/giu.c new file mode 100644 index 000000000000..d21f6f2d22a3 --- /dev/null +++ b/arch/mips/vr41xx/common/giu.c | |||
@@ -0,0 +1,122 @@ | |||
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 | |||
29 | static 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 | |||
47 | static 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 | |||
60 | static 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 | |||
73 | static 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 | |||
117 | err_free_device: | ||
118 | platform_device_put(pdev); | ||
119 | |||
120 | return retval; | ||
121 | } | ||
122 | device_initcall(vr41xx_giu_add); | ||