mm: page_alloc: do not treat a zone that cannot be used for dirty pages as "full"
[linux/fpc-iii.git] / arch / mips / vr41xx / common / giu.c
blob32cc8d66b34eb526f79626eaa3ac343ebadd608c
1 /*
2 * NEC VR4100 series GIU platform device.
4 * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
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.
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.
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
20 #include <linux/errno.h>
21 #include <linux/init.h>
22 #include <linux/smp.h>
23 #include <linux/ioport.h>
24 #include <linux/platform_device.h>
26 #include <asm/cpu.h>
27 #include <asm/vr41xx/giu.h>
28 #include <asm/vr41xx/irq.h>
30 static struct resource giu_50pins_pullupdown_resource[] __initdata = {
32 .start = 0x0b000100,
33 .end = 0x0b00011f,
34 .flags = IORESOURCE_MEM,
37 .start = 0x0b0002e0,
38 .end = 0x0b0002e3,
39 .flags = IORESOURCE_MEM,
42 .start = GIUINT_IRQ,
43 .end = GIUINT_IRQ,
44 .flags = IORESOURCE_IRQ,
48 static struct resource giu_36pins_resource[] __initdata = {
50 .start = 0x0f000140,
51 .end = 0x0f00015f,
52 .flags = IORESOURCE_MEM,
55 .start = GIUINT_IRQ,
56 .end = GIUINT_IRQ,
57 .flags = IORESOURCE_IRQ,
61 static struct resource giu_48pins_resource[] __initdata = {
63 .start = 0x0f000140,
64 .end = 0x0f000167,
65 .flags = IORESOURCE_MEM,
68 .start = GIUINT_IRQ,
69 .end = GIUINT_IRQ,
70 .flags = IORESOURCE_IRQ,
74 static int __init vr41xx_giu_add(void)
76 struct platform_device *pdev;
77 struct resource *res;
78 unsigned int num;
79 int retval;
81 pdev = platform_device_alloc("GIU", -1);
82 if (!pdev)
83 return -ENOMEM;
85 switch (current_cpu_type()) {
86 case CPU_VR4111:
87 case CPU_VR4121:
88 pdev->id = GPIO_50PINS_PULLUPDOWN;
89 res = giu_50pins_pullupdown_resource;
90 num = ARRAY_SIZE(giu_50pins_pullupdown_resource);
91 break;
92 case CPU_VR4122:
93 case CPU_VR4131:
94 pdev->id = GPIO_36PINS;
95 res = giu_36pins_resource;
96 num = ARRAY_SIZE(giu_36pins_resource);
97 break;
98 case CPU_VR4133:
99 pdev->id = GPIO_48PINS_EDGE_SELECT;
100 res = giu_48pins_resource;
101 num = ARRAY_SIZE(giu_48pins_resource);
102 break;
103 default:
104 retval = -ENODEV;
105 goto err_free_device;
108 retval = platform_device_add_resources(pdev, res, num);
109 if (retval)
110 goto err_free_device;
112 retval = platform_device_add(pdev);
113 if (retval)
114 goto err_free_device;
116 return 0;
118 err_free_device:
119 platform_device_put(pdev);
121 return retval;
123 device_initcall(vr41xx_giu_add);