blob: e6173376605d4d9f52bb01727f6d078f3da26ab9 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * SCSI low-level driver for the 53c94 SCSI bus adaptor found
3 * on Power Macintosh computers, controlling the external SCSI chain.
4 * We assume the 53c94 is connected to a DBDMA (descriptor-based DMA)
5 * controller.
6 *
7 * Paul Mackerras, August 1996.
8 * Copyright (C) 1996 Paul Mackerras.
9 */
10#include <linux/kernel.h>
11#include <linux/delay.h>
12#include <linux/types.h>
13#include <linux/string.h>
14#include <linux/slab.h>
15#include <linux/blkdev.h>
16#include <linux/proc_fs.h>
17#include <linux/stat.h>
18#include <linux/spinlock.h>
19#include <linux/interrupt.h>
Paul Gortmakeracf33682011-05-27 09:47:43 -040020#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <asm/dbdma.h>
22#include <asm/io.h>
23#include <asm/pgtable.h>
24#include <asm/prom.h>
25#include <asm/system.h>
26#include <asm/pci-bridge.h>
27#include <asm/macio.h>
28
29#include <scsi/scsi.h>
30#include <scsi/scsi_cmnd.h>
31#include <scsi/scsi_device.h>
32#include <scsi/scsi_host.h>
33
34#include "mac53c94.h"
35
36enum fsc_phase {
37 idle,
38 selecting,
39 dataing,
40 completing,
41 busfreeing,
42};
43
44struct fsc_state {
45 struct mac53c94_regs __iomem *regs;
46 int intr;
47 struct dbdma_regs __iomem *dma;
48 int dmaintr;
49 int clk_freq;
50 struct Scsi_Host *host;
51 struct scsi_cmnd *request_q;
52 struct scsi_cmnd *request_qtail;
53 struct scsi_cmnd *current_req; /* req we're currently working on */
54 enum fsc_phase phase; /* what we're currently trying to do */
55 struct dbdma_cmd *dma_cmds; /* space for dbdma commands, aligned */
56 void *dma_cmd_space;
57 struct pci_dev *pdev;
58 dma_addr_t dma_addr;
59 struct macio_dev *mdev;
60};
61
62static void mac53c94_init(struct fsc_state *);
63static void mac53c94_start(struct fsc_state *);
David Howells7d12e782006-10-05 14:55:46 +010064static void mac53c94_interrupt(int, void *);
65static irqreturn_t do_mac53c94_interrupt(int, void *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066static void cmd_done(struct fsc_state *, int result);
67static void set_dma_cmds(struct fsc_state *, struct scsi_cmnd *);
68
69
Jeff Garzikf2812332010-11-16 02:10:29 -050070static int mac53c94_queue_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
Linus Torvalds1da177e2005-04-16 15:20:36 -070071{
72 struct fsc_state *state;
73
74#if 0
75 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
76 int i;
77 printk(KERN_DEBUG "mac53c94_queue %p: command is", cmd);
78 for (i = 0; i < cmd->cmd_len; ++i)
Joe Perchesad361c92009-07-06 13:05:40 -070079 printk(KERN_CONT " %.2x", cmd->cmnd[i]);
80 printk(KERN_CONT "\n");
81 printk(KERN_DEBUG "use_sg=%d request_bufflen=%d request_buffer=%p\n",
FUJITA Tomonori646158c2007-05-26 12:46:30 +090082 scsi_sg_count(cmd), scsi_bufflen(cmd), scsi_sglist(cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 }
84#endif
85
86 cmd->scsi_done = done;
87 cmd->host_scribble = NULL;
88
89 state = (struct fsc_state *) cmd->device->host->hostdata;
90
91 if (state->request_q == NULL)
92 state->request_q = cmd;
93 else
94 state->request_qtail->host_scribble = (void *) cmd;
95 state->request_qtail = cmd;
96
97 if (state->phase == idle)
98 mac53c94_start(state);
99
100 return 0;
101}
102
Jeff Garzikf2812332010-11-16 02:10:29 -0500103static DEF_SCSI_QCMD(mac53c94_queue)
104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105static int mac53c94_host_reset(struct scsi_cmnd *cmd)
106{
107 struct fsc_state *state = (struct fsc_state *) cmd->device->host->hostdata;
108 struct mac53c94_regs __iomem *regs = state->regs;
109 struct dbdma_regs __iomem *dma = state->dma;
Jeff Garzik df0ae242005-05-28 07:57:14 -0400110 unsigned long flags;
111
112 spin_lock_irqsave(cmd->device->host->host_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
114 writel((RUN|PAUSE|FLUSH|WAKE) << 16, &dma->control);
115 writeb(CMD_SCSI_RESET, &regs->command); /* assert RST */
116 udelay(100); /* leave it on for a while (>= 25us) */
117 writeb(CMD_RESET, &regs->command);
118 udelay(20);
119 mac53c94_init(state);
120 writeb(CMD_NOP, &regs->command);
Jeff Garzik df0ae242005-05-28 07:57:14 -0400121
122 spin_unlock_irqrestore(cmd->device->host->host_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 return SUCCESS;
124}
125
126static void mac53c94_init(struct fsc_state *state)
127{
128 struct mac53c94_regs __iomem *regs = state->regs;
129 struct dbdma_regs __iomem *dma = state->dma;
130 int x;
131
132 writeb(state->host->this_id | CF1_PAR_ENABLE, &regs->config1);
133 writeb(TIMO_VAL(250), &regs->sel_timeout); /* 250ms */
134 writeb(CLKF_VAL(state->clk_freq), &regs->clk_factor);
135 writeb(CF2_FEATURE_EN, &regs->config2);
136 writeb(0, &regs->config3);
137 writeb(0, &regs->sync_period);
138 writeb(0, &regs->sync_offset);
139 x = readb(&regs->interrupt);
140 writel((RUN|PAUSE|FLUSH|WAKE) << 16, &dma->control);
141}
142
143/*
144 * Start the next command for a 53C94.
145 * Should be called with interrupts disabled.
146 */
147static void mac53c94_start(struct fsc_state *state)
148{
149 struct scsi_cmnd *cmd;
150 struct mac53c94_regs __iomem *regs = state->regs;
151 int i;
152
153 if (state->phase != idle || state->current_req != NULL)
154 panic("inappropriate mac53c94_start (state=%p)", state);
155 if (state->request_q == NULL)
156 return;
157 state->current_req = cmd = state->request_q;
158 state->request_q = (struct scsi_cmnd *) cmd->host_scribble;
159
160 /* Off we go */
161 writeb(0, &regs->count_lo);
162 writeb(0, &regs->count_mid);
163 writeb(0, &regs->count_hi);
164 writeb(CMD_NOP + CMD_DMA_MODE, &regs->command);
165 udelay(1);
166 writeb(CMD_FLUSH, &regs->command);
167 udelay(1);
168 writeb(cmd->device->id, &regs->dest_id);
169 writeb(0, &regs->sync_period);
170 writeb(0, &regs->sync_offset);
171
172 /* load the command into the FIFO */
173 for (i = 0; i < cmd->cmd_len; ++i)
174 writeb(cmd->cmnd[i], &regs->fifo);
175
176 /* do select without ATN XXX */
177 writeb(CMD_SELECT, &regs->command);
178 state->phase = selecting;
179
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900180 set_dma_cmds(state, cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181}
182
David Howells7d12e782006-10-05 14:55:46 +0100183static irqreturn_t do_mac53c94_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184{
185 unsigned long flags;
186 struct Scsi_Host *dev = ((struct fsc_state *) dev_id)->current_req->device->host;
187
188 spin_lock_irqsave(dev->host_lock, flags);
David Howells7d12e782006-10-05 14:55:46 +0100189 mac53c94_interrupt(irq, dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190 spin_unlock_irqrestore(dev->host_lock, flags);
191 return IRQ_HANDLED;
192}
193
David Howells7d12e782006-10-05 14:55:46 +0100194static void mac53c94_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195{
196 struct fsc_state *state = (struct fsc_state *) dev_id;
197 struct mac53c94_regs __iomem *regs = state->regs;
198 struct dbdma_regs __iomem *dma = state->dma;
199 struct scsi_cmnd *cmd = state->current_req;
200 int nb, stat, seq, intr;
201 static int mac53c94_errors;
202
203 /*
204 * Apparently, reading the interrupt register unlatches
205 * the status and sequence step registers.
206 */
207 seq = readb(&regs->seqstep);
208 stat = readb(&regs->status);
209 intr = readb(&regs->interrupt);
210
211#if 0
212 printk(KERN_DEBUG "mac53c94_intr, intr=%x stat=%x seq=%x phase=%d\n",
213 intr, stat, seq, state->phase);
214#endif
215
216 if (intr & INTR_RESET) {
217 /* SCSI bus was reset */
218 printk(KERN_INFO "external SCSI bus reset detected\n");
219 writeb(CMD_NOP, &regs->command);
220 writel(RUN << 16, &dma->control); /* stop dma */
221 cmd_done(state, DID_RESET << 16);
222 return;
223 }
224 if (intr & INTR_ILL_CMD) {
225 printk(KERN_ERR "53c94: invalid cmd, intr=%x stat=%x seq=%x phase=%d\n",
226 intr, stat, seq, state->phase);
227 cmd_done(state, DID_ERROR << 16);
228 return;
229 }
230 if (stat & STAT_ERROR) {
231#if 0
232 /* XXX these seem to be harmless? */
233 printk("53c94: bad error, intr=%x stat=%x seq=%x phase=%d\n",
234 intr, stat, seq, state->phase);
235#endif
236 ++mac53c94_errors;
237 writeb(CMD_NOP + CMD_DMA_MODE, &regs->command);
238 }
239 if (cmd == 0) {
240 printk(KERN_DEBUG "53c94: interrupt with no command active?\n");
241 return;
242 }
243 if (stat & STAT_PARITY) {
244 printk(KERN_ERR "mac53c94: parity error\n");
245 cmd_done(state, DID_PARITY << 16);
246 return;
247 }
248 switch (state->phase) {
249 case selecting:
250 if (intr & INTR_DISCONNECT) {
251 /* selection timed out */
252 cmd_done(state, DID_BAD_TARGET << 16);
253 return;
254 }
255 if (intr != INTR_BUS_SERV + INTR_DONE) {
256 printk(KERN_DEBUG "got intr %x during selection\n", intr);
257 cmd_done(state, DID_ERROR << 16);
258 return;
259 }
260 if ((seq & SS_MASK) != SS_DONE) {
261 printk(KERN_DEBUG "seq step %x after command\n", seq);
262 cmd_done(state, DID_ERROR << 16);
263 return;
264 }
265 writeb(CMD_NOP, &regs->command);
266 /* set DMA controller going if any data to transfer */
267 if ((stat & (STAT_MSG|STAT_CD)) == 0
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900268 && (scsi_sg_count(cmd) > 0 || scsi_bufflen(cmd))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 nb = cmd->SCp.this_residual;
270 if (nb > 0xfff0)
271 nb = 0xfff0;
272 cmd->SCp.this_residual -= nb;
273 writeb(nb, &regs->count_lo);
274 writeb(nb >> 8, &regs->count_mid);
275 writeb(CMD_DMA_MODE + CMD_NOP, &regs->command);
276 writel(virt_to_phys(state->dma_cmds), &dma->cmdptr);
277 writel((RUN << 16) | RUN, &dma->control);
278 writeb(CMD_DMA_MODE + CMD_XFER_DATA, &regs->command);
279 state->phase = dataing;
280 break;
281 } else if ((stat & STAT_PHASE) == STAT_CD + STAT_IO) {
282 /* up to status phase already */
283 writeb(CMD_I_COMPLETE, &regs->command);
284 state->phase = completing;
285 } else {
286 printk(KERN_DEBUG "in unexpected phase %x after cmd\n",
287 stat & STAT_PHASE);
288 cmd_done(state, DID_ERROR << 16);
289 return;
290 }
291 break;
292
293 case dataing:
294 if (intr != INTR_BUS_SERV) {
295 printk(KERN_DEBUG "got intr %x before status\n", intr);
296 cmd_done(state, DID_ERROR << 16);
297 return;
298 }
299 if (cmd->SCp.this_residual != 0
300 && (stat & (STAT_MSG|STAT_CD)) == 0) {
301 /* Set up the count regs to transfer more */
302 nb = cmd->SCp.this_residual;
303 if (nb > 0xfff0)
304 nb = 0xfff0;
305 cmd->SCp.this_residual -= nb;
306 writeb(nb, &regs->count_lo);
307 writeb(nb >> 8, &regs->count_mid);
308 writeb(CMD_DMA_MODE + CMD_NOP, &regs->command);
309 writeb(CMD_DMA_MODE + CMD_XFER_DATA, &regs->command);
310 break;
311 }
312 if ((stat & STAT_PHASE) != STAT_CD + STAT_IO) {
313 printk(KERN_DEBUG "intr %x before data xfer complete\n", intr);
314 }
315 writel(RUN << 16, &dma->control); /* stop dma */
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900316 scsi_dma_unmap(cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 /* should check dma status */
318 writeb(CMD_I_COMPLETE, &regs->command);
319 state->phase = completing;
320 break;
321 case completing:
322 if (intr != INTR_DONE) {
323 printk(KERN_DEBUG "got intr %x on completion\n", intr);
324 cmd_done(state, DID_ERROR << 16);
325 return;
326 }
327 cmd->SCp.Status = readb(&regs->fifo);
328 cmd->SCp.Message = readb(&regs->fifo);
329 cmd->result = CMD_ACCEPT_MSG;
330 writeb(CMD_ACCEPT_MSG, &regs->command);
331 state->phase = busfreeing;
332 break;
333 case busfreeing:
334 if (intr != INTR_DISCONNECT) {
335 printk(KERN_DEBUG "got intr %x when expected disconnect\n", intr);
336 }
337 cmd_done(state, (DID_OK << 16) + (cmd->SCp.Message << 8)
338 + cmd->SCp.Status);
339 break;
340 default:
341 printk(KERN_DEBUG "don't know about phase %d\n", state->phase);
342 }
343}
344
345static void cmd_done(struct fsc_state *state, int result)
346{
347 struct scsi_cmnd *cmd;
348
349 cmd = state->current_req;
350 if (cmd != 0) {
351 cmd->result = result;
352 (*cmd->scsi_done)(cmd);
353 state->current_req = NULL;
354 }
355 state->phase = idle;
356 mac53c94_start(state);
357}
358
359/*
360 * Set up DMA commands for transferring data.
361 */
362static void set_dma_cmds(struct fsc_state *state, struct scsi_cmnd *cmd)
363{
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900364 int i, dma_cmd, total, nseg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 struct scatterlist *scl;
366 struct dbdma_cmd *dcmds;
367 dma_addr_t dma_addr;
368 u32 dma_len;
369
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900370 nseg = scsi_dma_map(cmd);
371 BUG_ON(nseg < 0);
372 if (!nseg)
373 return;
374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 dma_cmd = cmd->sc_data_direction == DMA_TO_DEVICE ?
376 OUTPUT_MORE : INPUT_MORE;
377 dcmds = state->dma_cmds;
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900378 total = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900380 scsi_for_each_sg(cmd, scl, nseg, i) {
381 dma_addr = sg_dma_address(scl);
382 dma_len = sg_dma_len(scl);
383 if (dma_len > 0xffff)
384 panic("mac53c94: scatterlist element >= 64k");
385 total += dma_len;
386 st_le16(&dcmds->req_count, dma_len);
387 st_le16(&dcmds->command, dma_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 st_le32(&dcmds->phy_addr, dma_addr);
389 dcmds->xfer_status = 0;
390 ++dcmds;
391 }
FUJITA Tomonori646158c2007-05-26 12:46:30 +0900392
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 dma_cmd += OUTPUT_LAST - OUTPUT_MORE;
394 st_le16(&dcmds[-1].command, dma_cmd);
395 st_le16(&dcmds->command, DBDMA_STOP);
396 cmd->SCp.this_residual = total;
397}
398
399static struct scsi_host_template mac53c94_template = {
400 .proc_name = "53c94",
401 .name = "53C94",
402 .queuecommand = mac53c94_queue,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 .eh_host_reset_handler = mac53c94_host_reset,
404 .can_queue = 1,
405 .this_id = 7,
406 .sg_tablesize = SG_ALL,
407 .cmd_per_lun = 1,
408 .use_clustering = DISABLE_CLUSTERING,
409};
410
Jeff Mahoney5e655772005-07-06 15:44:41 -0400411static int mac53c94_probe(struct macio_dev *mdev, const struct of_device_id *match)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412{
413 struct device_node *node = macio_get_of_node(mdev);
414 struct pci_dev *pdev = macio_get_pci_dev(mdev);
415 struct fsc_state *state;
416 struct Scsi_Host *host;
417 void *dma_cmd_space;
Jeremy Kerr294ef162006-07-12 15:40:51 +1000418 const unsigned char *clkprop;
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100419 int proplen, rc = -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421 if (macio_resource_count(mdev) != 2 || macio_irq_count(mdev) != 2) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100422 printk(KERN_ERR "mac53c94: expected 2 addrs and intrs"
423 " (got %d/%d)\n",
424 macio_resource_count(mdev), macio_irq_count(mdev));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 return -ENODEV;
426 }
427
428 if (macio_request_resources(mdev, "mac53c94") != 0) {
429 printk(KERN_ERR "mac53c94: unable to request memory resources");
430 return -EBUSY;
431 }
432
433 host = scsi_host_alloc(&mac53c94_template, sizeof(struct fsc_state));
434 if (host == NULL) {
435 printk(KERN_ERR "mac53c94: couldn't register host");
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100436 rc = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 goto out_release;
438 }
439
440 state = (struct fsc_state *) host->hostdata;
441 macio_set_drvdata(mdev, state);
442 state->host = host;
443 state->pdev = pdev;
444 state->mdev = mdev;
445
446 state->regs = (struct mac53c94_regs __iomem *)
447 ioremap(macio_resource_start(mdev, 0), 0x1000);
448 state->intr = macio_irq(mdev, 0);
449 state->dma = (struct dbdma_regs __iomem *)
450 ioremap(macio_resource_start(mdev, 1), 0x1000);
451 state->dmaintr = macio_irq(mdev, 1);
452 if (state->regs == NULL || state->dma == NULL) {
453 printk(KERN_ERR "mac53c94: ioremap failed for %s\n",
454 node->full_name);
455 goto out_free;
456 }
457
Stephen Rothwell40cd3a42007-05-01 13:54:02 +1000458 clkprop = of_get_property(node, "clock-frequency", &proplen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 if (clkprop == NULL || proplen != sizeof(int)) {
460 printk(KERN_ERR "%s: can't get clock frequency, "
461 "assuming 25MHz\n", node->full_name);
462 state->clk_freq = 25000000;
463 } else
464 state->clk_freq = *(int *)clkprop;
465
466 /* Space for dma command list: +1 for stop command,
467 * +1 to allow for aligning.
468 * XXX FIXME: Use DMA consistent routines
469 */
470 dma_cmd_space = kmalloc((host->sg_tablesize + 2) *
471 sizeof(struct dbdma_cmd), GFP_KERNEL);
472 if (dma_cmd_space == 0) {
473 printk(KERN_ERR "mac53c94: couldn't allocate dma "
474 "command space for %s\n", node->full_name);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100475 rc = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 goto out_free;
477 }
478 state->dma_cmds = (struct dbdma_cmd *)DBDMA_ALIGN(dma_cmd_space);
479 memset(state->dma_cmds, 0, (host->sg_tablesize + 1)
480 * sizeof(struct dbdma_cmd));
481 state->dma_cmd_space = dma_cmd_space;
482
483 mac53c94_init(state);
484
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100485 if (request_irq(state->intr, do_mac53c94_interrupt, 0, "53C94",state)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 printk(KERN_ERR "mac53C94: can't get irq %d for %s\n",
487 state->intr, node->full_name);
488 goto out_free_dma;
489 }
490
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100491 rc = scsi_add_host(host, &mdev->ofdev.dev);
492 if (rc != 0)
493 goto out_release_irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100495 scsi_scan_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 return 0;
497
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100498 out_release_irq:
499 free_irq(state->intr, state);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 out_free_dma:
501 kfree(state->dma_cmd_space);
502 out_free:
503 if (state->dma != NULL)
504 iounmap(state->dma);
505 if (state->regs != NULL)
506 iounmap(state->regs);
507 scsi_host_put(host);
508 out_release:
509 macio_release_resources(mdev);
510
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100511 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512}
513
514static int mac53c94_remove(struct macio_dev *mdev)
515{
516 struct fsc_state *fp = (struct fsc_state *)macio_get_drvdata(mdev);
517 struct Scsi_Host *host = fp->host;
518
519 scsi_remove_host(host);
520
521 free_irq(fp->intr, fp);
522
523 if (fp->regs)
Al Viro7be7cbf2005-12-06 06:01:14 -0500524 iounmap(fp->regs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 if (fp->dma)
Al Viro7be7cbf2005-12-06 06:01:14 -0500526 iounmap(fp->dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 kfree(fp->dma_cmd_space);
528
529 scsi_host_put(host);
530
531 macio_release_resources(mdev);
532
533 return 0;
534}
535
536
Jeff Mahoney5e655772005-07-06 15:44:41 -0400537static struct of_device_id mac53c94_match[] =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538{
539 {
540 .name = "53c94",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 },
542 {},
543};
Jeff Mahoney5e655772005-07-06 15:44:41 -0400544MODULE_DEVICE_TABLE (of, mac53c94_match);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545
546static struct macio_driver mac53c94_driver =
547{
Benjamin Herrenschmidtc2cdf6a2010-06-02 17:09:18 +1000548 .driver = {
549 .name = "mac53c94",
550 .owner = THIS_MODULE,
551 .of_match_table = mac53c94_match,
552 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 .probe = mac53c94_probe,
554 .remove = mac53c94_remove,
555};
556
557
558static int __init init_mac53c94(void)
559{
560 return macio_register_driver(&mac53c94_driver);
561}
562
563static void __exit exit_mac53c94(void)
564{
565 return macio_unregister_driver(&mac53c94_driver);
566}
567
568module_init(init_mac53c94);
569module_exit(exit_mac53c94);
570
571MODULE_DESCRIPTION("PowerMac 53c94 SCSI driver");
572MODULE_AUTHOR("Paul Mackerras <paulus@samba.org>");
573MODULE_LICENSE("GPL");