blob: e7775a41ae5d11f397012194e20daa1ebf05d9b9 [file] [log] [blame]
Andrew Victor2c1f3b72006-02-21 12:56:52 +02001/*
2 * at91_cf.c -- AT91 CompactFlash controller driver
3 *
4 * Copyright (C) 2005 David Brownell
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
12#include <linux/module.h>
13#include <linux/kernel.h>
Andrew Victor2c1f3b72006-02-21 12:56:52 +020014#include <linux/platform_device.h>
15#include <linux/errno.h>
16#include <linux/init.h>
17#include <linux/interrupt.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090018#include <linux/slab.h>
Joachim Eastwood80af9e62012-01-10 02:37:25 +010019#include <linux/gpio.h>
Jean-Christophe PLAGNIOL-VILLARDbcd23602012-10-30 05:12:23 +080020#include <linux/platform_data/atmel.h>
Joachim Eastwooda8431682013-06-06 10:24:17 +020021#include <linux/io.h>
22#include <linux/sizes.h>
Joachim Eastwooded9084e2013-06-06 10:24:18 +020023#include <linux/of.h>
24#include <linux/of_device.h>
25#include <linux/of_gpio.h>
Andrew Victor2c1f3b72006-02-21 12:56:52 +020026
27#include <pcmcia/ss.h>
28
Russell Kinga09e64f2008-08-05 16:14:15 +010029#include <mach/at91rm9200_mc.h>
Jean-Christophe PLAGNIOL-VILLARDf363c402012-02-13 12:58:53 +080030#include <mach/at91_ramc.h>
Andrew Victor2c1f3b72006-02-21 12:56:52 +020031
32
Andrew Victor2c1f3b72006-02-21 12:56:52 +020033/*
34 * A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW;
35 * some other bit in {A24,A22..A11} is nREG to flag memory access
36 * (vs attributes). So more than 2KB/region would just be waste.
Andrew Victorebe5cfb2006-11-06 15:56:07 +020037 * Note: These are offsets from the physical base address.
Andrew Victor2c1f3b72006-02-21 12:56:52 +020038 */
Andrew Victorebe5cfb2006-11-06 15:56:07 +020039#define CF_ATTR_PHYS (0)
40#define CF_IO_PHYS (1 << 23)
41#define CF_MEM_PHYS (0x017ff800)
Andrew Victor2c1f3b72006-02-21 12:56:52 +020042
43/*--------------------------------------------------------------------------*/
44
Andrew Victor2c1f3b72006-02-21 12:56:52 +020045struct at91_cf_socket {
46 struct pcmcia_socket socket;
47
48 unsigned present:1;
49
50 struct platform_device *pdev;
51 struct at91_cf_data *board;
Andrew Victorebe5cfb2006-11-06 15:56:07 +020052
53 unsigned long phys_baseaddr;
Andrew Victor2c1f3b72006-02-21 12:56:52 +020054};
55
Andrew Victor2c1f3b72006-02-21 12:56:52 +020056static inline int at91_cf_present(struct at91_cf_socket *cf)
57{
David Brownell4c1fc442008-02-04 22:27:42 -080058 return !gpio_get_value(cf->board->det_pin);
Andrew Victor2c1f3b72006-02-21 12:56:52 +020059}
60
61/*--------------------------------------------------------------------------*/
62
63static int at91_cf_ss_init(struct pcmcia_socket *s)
64{
65 return 0;
66}
67
David Howells7d12e782006-10-05 14:55:46 +010068static irqreturn_t at91_cf_irq(int irq, void *_cf)
Andrew Victor2c1f3b72006-02-21 12:56:52 +020069{
Jeff Garzikc7bec5a2006-10-06 15:00:58 -040070 struct at91_cf_socket *cf = _cf;
Andrew Victor2c1f3b72006-02-21 12:56:52 +020071
Joachim Eastwood80af9e62012-01-10 02:37:25 +010072 if (irq == gpio_to_irq(cf->board->det_pin)) {
Andrew Victor2c1f3b72006-02-21 12:56:52 +020073 unsigned present = at91_cf_present(cf);
74
75 /* kick pccard as needed */
76 if (present != cf->present) {
77 cf->present = present;
Joachim Eastwood40ca0202013-06-06 10:24:15 +020078 dev_dbg(&cf->pdev->dev, "card %s\n",
David Brownell2c536202006-04-14 18:05:38 -070079 present ? "present" : "gone");
Andrew Victor2c1f3b72006-02-21 12:56:52 +020080 pcmcia_parse_events(&cf->socket, SS_DETECT);
81 }
82 }
83
84 return IRQ_HANDLED;
85}
86
87static int at91_cf_get_status(struct pcmcia_socket *s, u_int *sp)
88{
89 struct at91_cf_socket *cf;
90
91 if (!sp)
92 return -EINVAL;
93
94 cf = container_of(s, struct at91_cf_socket, socket);
95
David Brownell2c536202006-04-14 18:05:38 -070096 /* NOTE: CF is always 3VCARD */
Andrew Victor2c1f3b72006-02-21 12:56:52 +020097 if (at91_cf_present(cf)) {
Joachim Eastwood80af9e62012-01-10 02:37:25 +010098 int rdy = gpio_is_valid(cf->board->irq_pin); /* RDY/nIRQ */
99 int vcc = gpio_is_valid(cf->board->vcc_pin);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200100
101 *sp = SS_DETECT | SS_3VCARD;
Joachim Eastwoode39506b2013-06-06 10:24:14 +0200102 if (!rdy || gpio_get_value(cf->board->irq_pin))
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200103 *sp |= SS_READY;
Joachim Eastwoode39506b2013-06-06 10:24:14 +0200104 if (!vcc || gpio_get_value(cf->board->vcc_pin))
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200105 *sp |= SS_POWERON;
106 } else
107 *sp = 0;
108
109 return 0;
110}
111
David Brownell2c536202006-04-14 18:05:38 -0700112static int
113at91_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200114{
115 struct at91_cf_socket *cf;
116
117 cf = container_of(sock, struct at91_cf_socket, socket);
118
119 /* switch Vcc if needed and possible */
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100120 if (gpio_is_valid(cf->board->vcc_pin)) {
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200121 switch (s->Vcc) {
Laurent Navetd652f702013-06-06 10:24:20 +0200122 case 0:
123 gpio_set_value(cf->board->vcc_pin, 0);
124 break;
125 case 33:
126 gpio_set_value(cf->board->vcc_pin, 1);
127 break;
128 default:
129 return -EINVAL;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200130 }
131 }
132
133 /* toggle reset if needed */
David Brownell4c1fc442008-02-04 22:27:42 -0800134 gpio_set_value(cf->board->rst_pin, s->flags & SS_RESET);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200135
Joachim Eastwood40ca0202013-06-06 10:24:15 +0200136 dev_dbg(&cf->pdev->dev, "Vcc %d, io_irq %d, flags %04x csc %04x\n",
137 s->Vcc, s->io_irq, s->flags, s->csc_mask);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200138
139 return 0;
140}
141
142static int at91_cf_ss_suspend(struct pcmcia_socket *s)
143{
144 return at91_cf_set_socket(s, &dead_socket);
145}
146
147/* we already mapped the I/O region */
148static int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
149{
150 struct at91_cf_socket *cf;
151 u32 csr;
152
153 cf = container_of(s, struct at91_cf_socket, socket);
154 io->flags &= (MAP_ACTIVE | MAP_16BIT | MAP_AUTOSZ);
155
156 /*
157 * Use 16 bit accesses unless/until we need 8-bit i/o space.
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200158 */
Jean-Christophe PLAGNIOL-VILLARDf363c402012-02-13 12:58:53 +0800159 csr = at91_ramc_read(0, AT91_SMC_CSR(cf->board->chipselect)) & ~AT91_SMC_DBW;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200160
161 /*
162 * NOTE: this CF controller ignores IOIS16, so we can't really do
163 * MAP_AUTOSZ. The 16bit mode allows single byte access on either
164 * D0-D7 (even addr) or D8-D15 (odd), so it's close enough for many
165 * purposes (and handles ide-cs).
166 *
167 * The 8bit mode is needed for odd byte access on D0-D7. It seems
168 * some cards only like that way to get at the odd byte, despite
169 * CF 3.0 spec table 35 also giving the D8-D15 option.
170 */
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200171 if (!(io->flags & (MAP_16BIT | MAP_AUTOSZ))) {
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200172 csr |= AT91_SMC_DBW_8;
Joachim Eastwood40ca0202013-06-06 10:24:15 +0200173 dev_dbg(&cf->pdev->dev, "8bit i/o bus\n");
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200174 } else {
175 csr |= AT91_SMC_DBW_16;
Joachim Eastwood40ca0202013-06-06 10:24:15 +0200176 dev_dbg(&cf->pdev->dev, "16bit i/o bus\n");
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200177 }
Jean-Christophe PLAGNIOL-VILLARDf363c402012-02-13 12:58:53 +0800178 at91_ramc_write(0, AT91_SMC_CSR(cf->board->chipselect), csr);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200179
180 io->start = cf->socket.io_offset;
181 io->stop = io->start + SZ_2K - 1;
182
183 return 0;
184}
185
186/* pcmcia layer maps/unmaps mem regions */
David Brownell2c536202006-04-14 18:05:38 -0700187static int
188at91_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map)
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200189{
190 struct at91_cf_socket *cf;
191
192 if (map->card_start)
193 return -EINVAL;
194
195 cf = container_of(s, struct at91_cf_socket, socket);
196
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200197 map->flags &= (MAP_ACTIVE | MAP_ATTRIB | MAP_16BIT);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200198 if (map->flags & MAP_ATTRIB)
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200199 map->static_start = cf->phys_baseaddr + CF_ATTR_PHYS;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200200 else
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200201 map->static_start = cf->phys_baseaddr + CF_MEM_PHYS;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200202
203 return 0;
204}
205
206static struct pccard_operations at91_cf_ops = {
207 .init = at91_cf_ss_init,
208 .suspend = at91_cf_ss_suspend,
209 .get_status = at91_cf_get_status,
210 .set_socket = at91_cf_set_socket,
211 .set_io_map = at91_cf_set_io_map,
212 .set_mem_map = at91_cf_set_mem_map,
213};
214
215/*--------------------------------------------------------------------------*/
216
Joachim Eastwooded9084e2013-06-06 10:24:18 +0200217#if defined(CONFIG_OF)
218static const struct of_device_id at91_cf_dt_ids[] = {
219 { .compatible = "atmel,at91rm9200-cf" },
220 { /* sentinel */ }
221};
222MODULE_DEVICE_TABLE(of, at91_cf_dt_ids);
223
224static int at91_cf_dt_init(struct platform_device *pdev)
225{
226 struct at91_cf_data *board;
227
228 board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
229 if (!board)
230 return -ENOMEM;
231
232 board->irq_pin = of_get_gpio(pdev->dev.of_node, 0);
233 board->det_pin = of_get_gpio(pdev->dev.of_node, 1);
234 board->vcc_pin = of_get_gpio(pdev->dev.of_node, 2);
235 board->rst_pin = of_get_gpio(pdev->dev.of_node, 3);
236
237 pdev->dev.platform_data = board;
238
239 return 0;
240}
241#else
242static int at91_cf_dt_init(struct platform_device *pdev)
243{
244 return -ENODEV;
245}
246#endif
247
Johan Hovold16a7c7c2013-09-23 16:27:29 +0200248static int at91_cf_probe(struct platform_device *pdev)
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200249{
250 struct at91_cf_socket *cf;
David Brownell0db60952006-04-19 06:37:48 -0700251 struct at91_cf_data *board = pdev->dev.platform_data;
David Brownell2c536202006-04-14 18:05:38 -0700252 struct resource *io;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200253 int status;
254
Joachim Eastwooded9084e2013-06-06 10:24:18 +0200255 if (!board) {
256 status = at91_cf_dt_init(pdev);
257 if (status)
258 return status;
259
260 board = pdev->dev.platform_data;
261 }
262
263 if (!gpio_is_valid(board->det_pin) || !gpio_is_valid(board->rst_pin))
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200264 return -ENODEV;
265
David Brownell2c536202006-04-14 18:05:38 -0700266 io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
267 if (!io)
268 return -ENODEV;
269
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200270 cf = devm_kzalloc(&pdev->dev, sizeof(*cf), GFP_KERNEL);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200271 if (!cf)
272 return -ENOMEM;
273
274 cf->board = board;
275 cf->pdev = pdev;
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200276 cf->phys_baseaddr = io->start;
David Brownell0db60952006-04-19 06:37:48 -0700277 platform_set_drvdata(pdev, cf);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200278
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200279 /* must be a GPIO; ergo must trigger on both edges */
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200280 status = devm_gpio_request(&pdev->dev, board->det_pin, "cf_det");
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200281 if (status < 0)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200282 return status;
283
284 status = devm_request_irq(&pdev->dev, gpio_to_irq(board->det_pin),
285 at91_cf_irq, 0, "at91_cf detect", cf);
David Brownell4c1fc442008-02-04 22:27:42 -0800286 if (status < 0)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200287 return status;
288
David Brownell0db60952006-04-19 06:37:48 -0700289 device_init_wakeup(&pdev->dev, 1);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200290
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200291 status = devm_gpio_request(&pdev->dev, board->rst_pin, "cf_rst");
David Brownell4c1fc442008-02-04 22:27:42 -0800292 if (status < 0)
293 goto fail0a;
294
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100295 if (gpio_is_valid(board->vcc_pin)) {
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200296 status = devm_gpio_request(&pdev->dev, board->vcc_pin, "cf_vcc");
David Brownell4c1fc442008-02-04 22:27:42 -0800297 if (status < 0)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200298 goto fail0a;
David Brownell4c1fc442008-02-04 22:27:42 -0800299 }
300
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200301 /*
302 * The card driver will request this irq later as needed.
303 * but it causes lots of "irqNN: nobody cared" messages
304 * unless we report that we handle everything (sigh).
305 * (Note: DK board doesn't wire the IRQ pin...)
306 */
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100307 if (gpio_is_valid(board->irq_pin)) {
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200308 status = devm_gpio_request(&pdev->dev, board->irq_pin, "cf_irq");
David Brownell4c1fc442008-02-04 22:27:42 -0800309 if (status < 0)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200310 goto fail0a;
311
312 status = devm_request_irq(&pdev->dev, gpio_to_irq(board->irq_pin),
313 at91_cf_irq, IRQF_SHARED, "at91_cf", cf);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200314 if (status < 0)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200315 goto fail0a;
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100316 cf->socket.pci_irq = gpio_to_irq(board->irq_pin);
David Brownell2c536202006-04-14 18:05:38 -0700317 } else
Yinghai Lu9130add2008-08-19 20:49:52 -0700318 cf->socket.pci_irq = nr_irqs + 1;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200319
Arnd Bergmann1be27c62015-03-12 15:54:23 +0100320 /*
321 * pcmcia layer only remaps "real" memory not iospace
322 * io_offset is set to 0x10000 to avoid the check in static_find_io().
323 * */
324 cf->socket.io_offset = 0x10000;
325 status = pci_ioremap_io(0x10000, cf->phys_baseaddr + CF_IO_PHYS);
326 if (status)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200327 goto fail0a;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200328
Andrew Victor40a00172006-12-04 12:26:36 +0200329 /* reserve chip-select regions */
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200330 if (!devm_request_mem_region(&pdev->dev, io->start, resource_size(io), "at91_cf")) {
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200331 status = -ENXIO;
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200332 goto fail0a;
Andrew Victorebe5cfb2006-11-06 15:56:07 +0200333 }
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200334
Joachim Eastwood40ca0202013-06-06 10:24:15 +0200335 dev_info(&pdev->dev, "irqs det #%d, io #%d\n",
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100336 gpio_to_irq(board->det_pin), gpio_to_irq(board->irq_pin));
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200337
338 cf->socket.owner = THIS_MODULE;
Alexey Dobriyane4a3c3f2007-02-13 22:39:27 -0800339 cf->socket.dev.parent = &pdev->dev;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200340 cf->socket.ops = &at91_cf_ops;
341 cf->socket.resource_ops = &pccard_static_ops;
342 cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
343 | SS_CAP_MEM_ALIGN;
344 cf->socket.map_size = SZ_2K;
David Brownell2c536202006-04-14 18:05:38 -0700345 cf->socket.io[0].res = io;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200346
347 status = pcmcia_register_socket(&cf->socket);
348 if (status < 0)
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200349 goto fail0a;
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200350
351 return 0;
352
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200353fail0a:
David Brownell1fbece12006-07-01 13:39:55 -0700354 device_init_wakeup(&pdev->dev, 0);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200355 return status;
356}
357
Johan Hovold16a7c7c2013-09-23 16:27:29 +0200358static int at91_cf_remove(struct platform_device *pdev)
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200359{
David Brownell0db60952006-04-19 06:37:48 -0700360 struct at91_cf_socket *cf = platform_get_drvdata(pdev);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200361
362 pcmcia_unregister_socket(&cf->socket);
David Brownell0db60952006-04-19 06:37:48 -0700363 device_init_wakeup(&pdev->dev, 0);
Joachim Eastwood54fe1592013-06-06 10:24:16 +0200364
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200365 return 0;
366}
367
David Brownell0db60952006-04-19 06:37:48 -0700368#ifdef CONFIG_PM
369
370static int at91_cf_suspend(struct platform_device *pdev, pm_message_t mesg)
371{
372 struct at91_cf_socket *cf = platform_get_drvdata(pdev);
373 struct at91_cf_data *board = cf->board;
374
David Brownell1fbece12006-07-01 13:39:55 -0700375 if (device_may_wakeup(&pdev->dev)) {
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100376 enable_irq_wake(gpio_to_irq(board->det_pin));
377 if (gpio_is_valid(board->irq_pin))
378 enable_irq_wake(gpio_to_irq(board->irq_pin));
David Brownell0db60952006-04-19 06:37:48 -0700379 }
David Brownell0db60952006-04-19 06:37:48 -0700380 return 0;
381}
382
383static int at91_cf_resume(struct platform_device *pdev)
384{
Marc Pignat9af20372007-05-31 00:40:44 -0700385 struct at91_cf_socket *cf = platform_get_drvdata(pdev);
386 struct at91_cf_data *board = cf->board;
387
388 if (device_may_wakeup(&pdev->dev)) {
Joachim Eastwood80af9e62012-01-10 02:37:25 +0100389 disable_irq_wake(gpio_to_irq(board->det_pin));
390 if (gpio_is_valid(board->irq_pin))
391 disable_irq_wake(gpio_to_irq(board->irq_pin));
Marc Pignat9af20372007-05-31 00:40:44 -0700392 }
393
David Brownell0db60952006-04-19 06:37:48 -0700394 return 0;
395}
396
397#else
398#define at91_cf_suspend NULL
399#define at91_cf_resume NULL
400#endif
401
402static struct platform_driver at91_cf_driver = {
403 .driver = {
Joachim Eastwood40ca0202013-06-06 10:24:15 +0200404 .name = "at91_cf",
Joachim Eastwooded9084e2013-06-06 10:24:18 +0200405 .of_match_table = of_match_ptr(at91_cf_dt_ids),
David Brownell0db60952006-04-19 06:37:48 -0700406 },
Johan Hovold16a7c7c2013-09-23 16:27:29 +0200407 .probe = at91_cf_probe,
408 .remove = at91_cf_remove,
David Brownell0db60952006-04-19 06:37:48 -0700409 .suspend = at91_cf_suspend,
410 .resume = at91_cf_resume,
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200411};
412
Johan Hovold16a7c7c2013-09-23 16:27:29 +0200413module_platform_driver(at91_cf_driver);
Andrew Victor2c1f3b72006-02-21 12:56:52 +0200414
415MODULE_DESCRIPTION("AT91 Compact Flash Driver");
416MODULE_AUTHOR("David Brownell");
417MODULE_LICENSE("GPL");
Kay Sievers12c2c012008-04-15 14:34:34 -0700418MODULE_ALIAS("platform:at91_cf");