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Diffstat (limited to 'drivers/ide/mips/swarm.c')
-rw-r--r--drivers/ide/mips/swarm.c196
1 files changed, 0 insertions, 196 deletions
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
deleted file mode 100644
index badf79fc9e3a..000000000000
--- a/drivers/ide/mips/swarm.c
+++ /dev/null
@@ -1,196 +0,0 @@
1/*
2 * Copyright (C) 2001, 2002, 2003 Broadcom Corporation
3 * Copyright (C) 2004 MontaVista Software Inc.
4 * Author: Manish Lachwani, mlachwani@mvista.com
5 * Copyright (C) 2004 MIPS Technologies, Inc. All rights reserved.
6 * Author: Maciej W. Rozycki <macro@mips.com>
7 * Copyright (c) 2006, 2008 Maciej W. Rozycki
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 */
23
24/*
25 * Derived loosely from ide-pmac.c, so:
26 * Copyright (C) 1998 Paul Mackerras.
27 * Copyright (C) 1995-1998 Mark Lord
28 */
29
30/*
31 * Boards with SiByte processors so far have supported IDE devices via
32 * the Generic Bus, PCI bus, and built-in PCMCIA interface. In all
33 * cases, byte-swapping must be avoided for these devices (whereas
34 * other PCI devices, for example, will require swapping). Any
35 * SiByte-targetted kernel including IDE support will include this
36 * file. Probing of a Generic Bus for an IDE device is controlled by
37 * the definition of "SIBYTE_HAVE_IDE", which is provided by
38 * <asm/sibyte/board.h> for Broadcom boards.
39 */
40
41#include <linux/ide.h>
42#include <linux/ioport.h>
43#include <linux/kernel.h>
44#include <linux/types.h>
45#include <linux/platform_device.h>
46
47#include <asm/io.h>
48
49#include <asm/sibyte/board.h>
50#include <asm/sibyte/sb1250_genbus.h>
51#include <asm/sibyte/sb1250_regs.h>
52
53#define DRV_NAME "ide-swarm"
54
55static char swarm_ide_string[] = DRV_NAME;
56
57static struct resource swarm_ide_resource = {
58 .name = "SWARM GenBus IDE",
59 .flags = IORESOURCE_MEM,
60};
61
62static struct platform_device *swarm_ide_dev;
63
64static const struct ide_port_info swarm_port_info = {
65 .name = DRV_NAME,
66 .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
67};
68
69/*
70 * swarm_ide_probe - if the board header indicates the existence of
71 * Generic Bus IDE, allocate a HWIF for it.
72 */
73static int __devinit swarm_ide_probe(struct device *dev)
74{
75 u8 __iomem *base;
76 struct ide_host *host;
77 phys_t offset, size;
78 int i, rc;
79 hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
80
81 if (!SIBYTE_HAVE_IDE)
82 return -ENODEV;
83
84 base = ioremap(A_IO_EXT_BASE, 0x800);
85 offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
86 size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
87 iounmap(base);
88
89 offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
90 size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
91 if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
92 printk(KERN_INFO DRV_NAME
93 ": IDE interface at GenBus disabled\n");
94 return -EBUSY;
95 }
96
97 printk(KERN_INFO DRV_NAME ": IDE interface at GenBus slot %i\n",
98 IDE_CS);
99
100 swarm_ide_resource.start = offset;
101 swarm_ide_resource.end = offset + size - 1;
102 if (request_resource(&iomem_resource, &swarm_ide_resource)) {
103 printk(KERN_ERR DRV_NAME
104 ": can't request I/O memory resource\n");
105 return -EBUSY;
106 }
107
108 base = ioremap(offset, size);
109
110 for (i = 0; i <= 7; i++)
111 hw.io_ports_array[i] =
112 (unsigned long)(base + ((0x1f0 + i) << 5));
113 hw.io_ports.ctl_addr =
114 (unsigned long)(base + (0x3f6 << 5));
115 hw.irq = K_INT_GB_IDE;
116 hw.chipset = ide_generic;
117
118 rc = ide_host_add(&swarm_port_info, hws, &host);
119 if (rc)
120 goto err;
121
122 dev_set_drvdata(dev, host);
123
124 return 0;
125err:
126 release_resource(&swarm_ide_resource);
127 iounmap(base);
128 return rc;
129}
130
131static struct device_driver swarm_ide_driver = {
132 .name = swarm_ide_string,
133 .bus = &platform_bus_type,
134 .probe = swarm_ide_probe,
135};
136
137static void swarm_ide_platform_release(struct device *device)
138{
139 struct platform_device *pldev;
140
141 /* free device */
142 pldev = to_platform_device(device);
143 kfree(pldev);
144}
145
146static int __devinit swarm_ide_init_module(void)
147{
148 struct platform_device *pldev;
149 int err;
150
151 printk(KERN_INFO "SWARM IDE driver\n");
152
153 if (driver_register(&swarm_ide_driver)) {
154 printk(KERN_ERR "Driver registration failed\n");
155 err = -ENODEV;
156 goto out;
157 }
158
159 if (!(pldev = kzalloc(sizeof (*pldev), GFP_KERNEL))) {
160 err = -ENOMEM;
161 goto out_unregister_driver;
162 }
163
164 pldev->name = swarm_ide_string;
165 pldev->id = 0;
166 pldev->dev.release = swarm_ide_platform_release;
167
168 if (platform_device_register(pldev)) {
169 err = -ENODEV;
170 goto out_free_pldev;
171 }
172
173 if (!pldev->dev.driver) {
174 /*
175 * The driver was not bound to this device, there was
176 * no hardware at this address. Unregister it, as the
177 * release fuction will take care of freeing the
178 * allocated structure
179 */
180 platform_device_unregister (pldev);
181 }
182
183 swarm_ide_dev = pldev;
184
185 return 0;
186
187out_free_pldev:
188 kfree(pldev);
189
190out_unregister_driver:
191 driver_unregister(&swarm_ide_driver);
192out:
193 return err;
194}
195
196module_init(swarm_ide_init_module);
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