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authorRalf Baechle <ralf@linux-mips.org>2008-04-28 07:41:36 -0400
committerJeff Garzik <jgarzik@redhat.com>2008-04-29 02:16:25 -0400
commit3dd654bfdf8905d0acb6f6231b5e736d2b0d4bc6 (patch)
tree5d5cf68ed77f2dd57b04d0dd672ff633750ba43f /drivers/ata/pata_rb500_cf.c
parenta01e035ebb552223c03f2d9138ffc73f2d4d3965 (diff)
[MIPS] ATA: Rename routerboard 500 to 532
The platform is actually named routerboard 532 so let's call it this. This patch only rename files, Kconfig and C symbols; no functional changes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_rb500_cf.c')
-rw-r--r--drivers/ata/pata_rb500_cf.c277
1 files changed, 0 insertions, 277 deletions
diff --git a/drivers/ata/pata_rb500_cf.c b/drivers/ata/pata_rb500_cf.c
deleted file mode 100644
index 4345174aaeec..000000000000
--- a/drivers/ata/pata_rb500_cf.c
+++ /dev/null
@@ -1,277 +0,0 @@
1/*
2 * A low-level PATA driver to handle a Compact Flash connected on the
3 * Mikrotik's RouterBoard 532 board.
4 *
5 * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
6 * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
7 *
8 * This file was based on: drivers/ata/pata_ixp4xx_cf.c
9 * Copyright (C) 2006-07 Tower Technologies
10 * Author: Alessandro Zummo <a.zummo@towertech.it>
11 *
12 * Also was based on the driver for Linux 2.4.xx published by Mikrotik for
13 * their RouterBoard 1xx and 5xx series devices. The original Mikrotik code
14 * seems not to have a license.
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2 as
18 * published by the Free Software Foundation.
19 *
20 */
21
22#include <linux/kernel.h>
23#include <linux/module.h>
24#include <linux/platform_device.h>
25
26#include <linux/io.h>
27#include <linux/interrupt.h>
28#include <linux/irq.h>
29
30#include <linux/libata.h>
31#include <scsi/scsi_host.h>
32
33#include <asm/gpio.h>
34
35#define DRV_NAME "pata-rb500-cf"
36#define DRV_VERSION "0.1.0"
37#define DRV_DESC "PATA driver for RouterBOARD 532 Compact Flash"
38
39#define RB500_CF_MAXPORTS 1
40#define RB500_CF_IO_DELAY 400
41
42#define RB500_CF_REG_CMD 0x0800
43#define RB500_CF_REG_CTRL 0x080E
44#define RB500_CF_REG_DATA 0x0C00
45
46struct rb500_cf_info {
47 void __iomem *iobase;
48 unsigned int gpio_line;
49 int frozen;
50 unsigned int irq;
51};
52
53/* ------------------------------------------------------------------------ */
54
55static inline void rb500_pata_finish_io(struct ata_port *ap)
56{
57 struct ata_host *ah = ap->host;
58 struct rb500_cf_info *info = ah->private_data;
59
60 ata_sff_altstatus(ap);
61 ndelay(RB500_CF_IO_DELAY);
62
63 set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
64}
65
66static void rb500_pata_exec_command(struct ata_port *ap,
67 const struct ata_taskfile *tf)
68{
69 writeb(tf->command, ap->ioaddr.command_addr);
70 rb500_pata_finish_io(ap);
71}
72
73static void rb500_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
74 unsigned int buflen, int write_data)
75{
76 struct ata_port *ap = adev->link->ap;
77 void __iomem *ioaddr = ap->ioaddr.data_addr;
78
79 if (write_data) {
80 for (; buflen > 0; buflen--, buf++)
81 writeb(*buf, ioaddr);
82 } else {
83 for (; buflen > 0; buflen--, buf++)
84 *buf = readb(ioaddr);
85 }
86
87 rb500_pata_finish_io(adev->link->ap);
88}
89
90static void rb500_pata_freeze(struct ata_port *ap)
91{
92 struct rb500_cf_info *info = ap->host->private_data;
93
94 info->frozen = 1;
95}
96
97static void rb500_pata_thaw(struct ata_port *ap)
98{
99 struct rb500_cf_info *info = ap->host->private_data;
100
101 info->frozen = 0;
102}
103
104static irqreturn_t rb500_pata_irq_handler(int irq, void *dev_instance)
105{
106 struct ata_host *ah = dev_instance;
107 struct rb500_cf_info *info = ah->private_data;
108
109 if (gpio_get_value(info->gpio_line)) {
110 set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
111 if (!info->frozen)
112 ata_sff_interrupt(info->irq, dev_instance);
113 } else {
114 set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
115 }
116
117 return IRQ_HANDLED;
118}
119
120static struct ata_port_operations rb500_pata_port_ops = {
121 .inherits = &ata_sff_port_ops,
122 .sff_exec_command = rb500_pata_exec_command,
123 .sff_data_xfer = rb500_pata_data_xfer,
124 .freeze = rb500_pata_freeze,
125 .thaw = rb500_pata_thaw,
126};
127
128/* ------------------------------------------------------------------------ */
129
130static struct scsi_host_template rb500_pata_sht = {
131 ATA_PIO_SHT(DRV_NAME),
132};
133
134/* ------------------------------------------------------------------------ */
135
136static void rb500_pata_setup_ports(struct ata_host *ah)
137{
138 struct rb500_cf_info *info = ah->private_data;
139 struct ata_port *ap;
140
141 ap = ah->ports[0];
142
143 ap->ops = &rb500_pata_port_ops;
144 ap->pio_mask = 0x1f; /* PIO4 */
145 ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO;
146
147 ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_CMD;
148 ap->ioaddr.ctl_addr = info->iobase + RB500_CF_REG_CTRL;
149 ap->ioaddr.altstatus_addr = info->iobase + RB500_CF_REG_CTRL;
150
151 ata_sff_std_ports(&ap->ioaddr);
152
153 ap->ioaddr.data_addr = info->iobase + RB500_CF_REG_DATA;
154}
155
156static __devinit int rb500_pata_driver_probe(struct platform_device *pdev)
157{
158 unsigned int irq;
159 int gpio;
160 struct resource *res;
161 struct ata_host *ah;
162 struct rb500_cf_info *info;
163 int ret;
164
165 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
166 if (!res) {
167 dev_err(&pdev->dev, "no IOMEM resource found\n");
168 return -EINVAL;
169 }
170
171 irq = platform_get_irq(pdev, 0);
172 if (irq <= 0) {
173 dev_err(&pdev->dev, "no IRQ resource found\n");
174 return -ENOENT;
175 }
176
177 gpio = irq_to_gpio(irq);
178 if (gpio < 0) {
179 dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq);
180 return -ENOENT;
181 }
182
183 ret = gpio_request(gpio, DRV_NAME);
184 if (ret) {
185 dev_err(&pdev->dev, "GPIO request failed\n");
186 return ret;
187 }
188
189 /* allocate host */
190 ah = ata_host_alloc(&pdev->dev, RB500_CF_MAXPORTS);
191 if (!ah)
192 return -ENOMEM;
193
194 platform_set_drvdata(pdev, ah);
195
196 info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
197 if (!info)
198 return -ENOMEM;
199
200 ah->private_data = info;
201 info->gpio_line = gpio;
202 info->irq = irq;
203
204 info->iobase = devm_ioremap_nocache(&pdev->dev, res->start,
205 res->end - res->start + 1);
206 if (!info->iobase)
207 return -ENOMEM;
208
209 ret = gpio_direction_input(gpio);
210 if (ret) {
211 dev_err(&pdev->dev, "unable to set GPIO direction, err=%d\n",
212 ret);
213 goto err_free_gpio;
214 }
215
216 rb500_pata_setup_ports(ah);
217
218 ret = ata_host_activate(ah, irq, rb500_pata_irq_handler,
219 IRQF_TRIGGER_LOW, &rb500_pata_sht);
220 if (ret)
221 goto err_free_gpio;
222
223 return 0;
224
225err_free_gpio:
226 gpio_free(gpio);
227
228 return ret;
229}
230
231static __devexit int rb500_pata_driver_remove(struct platform_device *pdev)
232{
233 struct ata_host *ah = platform_get_drvdata(pdev);
234 struct rb500_cf_info *info = ah->private_data;
235
236 ata_host_detach(ah);
237 gpio_free(info->gpio_line);
238
239 return 0;
240}
241
242/* work with hotplug and coldplug */
243MODULE_ALIAS("platform:" DRV_NAME);
244
245static struct platform_driver rb500_pata_platform_driver = {
246 .probe = rb500_pata_driver_probe,
247 .remove = __devexit_p(rb500_pata_driver_remove),
248 .driver = {
249 .name = DRV_NAME,
250 .owner = THIS_MODULE,
251 },
252};
253
254/* ------------------------------------------------------------------------ */
255
256#define DRV_INFO DRV_DESC " version " DRV_VERSION
257
258static int __init rb500_pata_module_init(void)
259{
260 printk(KERN_INFO DRV_INFO "\n");
261
262 return platform_driver_register(&rb500_pata_platform_driver);
263}
264
265static void __exit rb500_pata_module_exit(void)
266{
267 platform_driver_unregister(&rb500_pata_platform_driver);
268}
269
270MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
271MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
272MODULE_DESCRIPTION(DRV_DESC);
273MODULE_VERSION(DRV_VERSION);
274MODULE_LICENSE("GPL");
275
276module_init(rb500_pata_module_init);
277module_exit(rb500_pata_module_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 13:48:18 -0500