diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-02 09:20:12 -0400 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-10 22:54:25 -0400 |
commit | 644570b830266ff33ff5f3542b9c838f93a55ea6 (patch) | |
tree | b19c680ce1b1e4cd15465c74aa335459068c033f /drivers/net/ethernet/8390/ax88796.c | |
parent | b955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (diff) |
8390: Move the 8390 related drivers
Moves the drivers for the National Semi-conductor 8390 chipset into
drivers/net/ethernet/8390/ and the necessary Kconfig and Makefile
changes.
CC: Donald Becker <becker@scyld.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Alain Malek <alain.malek@cryogen.com>
CC: Peter De Schrijver <p2@mind.be>
CC: "David Huggins-Daines" <dhd@debian.org>
CC: Wim Dumon <wimpie@kotnet.org>
CC: Yoshinori Sato <ysato@users.sourceforge.jp>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/8390/ax88796.c')
-rw-r--r-- | drivers/net/ethernet/8390/ax88796.c | 1010 |
1 files changed, 1010 insertions, 0 deletions
diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c new file mode 100644 index 000000000000..e7cb8c8b9776 --- /dev/null +++ b/drivers/net/ethernet/8390/ax88796.c | |||
@@ -0,0 +1,1010 @@ | |||
1 | /* drivers/net/ax88796.c | ||
2 | * | ||
3 | * Copyright 2005,2007 Simtec Electronics | ||
4 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | ||
6 | * Asix AX88796 10/100 Ethernet controller support | ||
7 | * Based on ne.c, by Donald Becker, et-al. | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License version 2 as | ||
11 | * published by the Free Software Foundation. | ||
12 | */ | ||
13 | |||
14 | #include <linux/module.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/errno.h> | ||
17 | #include <linux/isapnp.h> | ||
18 | #include <linux/init.h> | ||
19 | #include <linux/interrupt.h> | ||
20 | #include <linux/io.h> | ||
21 | #include <linux/platform_device.h> | ||
22 | #include <linux/delay.h> | ||
23 | #include <linux/timer.h> | ||
24 | #include <linux/netdevice.h> | ||
25 | #include <linux/etherdevice.h> | ||
26 | #include <linux/ethtool.h> | ||
27 | #include <linux/mdio-bitbang.h> | ||
28 | #include <linux/phy.h> | ||
29 | #include <linux/eeprom_93cx6.h> | ||
30 | #include <linux/slab.h> | ||
31 | |||
32 | #include <net/ax88796.h> | ||
33 | |||
34 | #include <asm/system.h> | ||
35 | |||
36 | /* Rename the lib8390.c functions to show that they are in this driver */ | ||
37 | #define __ei_open ax_ei_open | ||
38 | #define __ei_close ax_ei_close | ||
39 | #define __ei_poll ax_ei_poll | ||
40 | #define __ei_start_xmit ax_ei_start_xmit | ||
41 | #define __ei_tx_timeout ax_ei_tx_timeout | ||
42 | #define __ei_get_stats ax_ei_get_stats | ||
43 | #define __ei_set_multicast_list ax_ei_set_multicast_list | ||
44 | #define __ei_interrupt ax_ei_interrupt | ||
45 | #define ____alloc_ei_netdev ax__alloc_ei_netdev | ||
46 | #define __NS8390_init ax_NS8390_init | ||
47 | |||
48 | /* force unsigned long back to 'void __iomem *' */ | ||
49 | #define ax_convert_addr(_a) ((void __force __iomem *)(_a)) | ||
50 | |||
51 | #define ei_inb(_a) readb(ax_convert_addr(_a)) | ||
52 | #define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a)) | ||
53 | |||
54 | #define ei_inb_p(_a) ei_inb(_a) | ||
55 | #define ei_outb_p(_v, _a) ei_outb(_v, _a) | ||
56 | |||
57 | /* define EI_SHIFT() to take into account our register offsets */ | ||
58 | #define EI_SHIFT(x) (ei_local->reg_offset[(x)]) | ||
59 | |||
60 | /* Ensure we have our RCR base value */ | ||
61 | #define AX88796_PLATFORM | ||
62 | |||
63 | static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n"; | ||
64 | |||
65 | #include "lib8390.c" | ||
66 | |||
67 | #define DRV_NAME "ax88796" | ||
68 | #define DRV_VERSION "1.00" | ||
69 | |||
70 | /* from ne.c */ | ||
71 | #define NE_CMD EI_SHIFT(0x00) | ||
72 | #define NE_RESET EI_SHIFT(0x1f) | ||
73 | #define NE_DATAPORT EI_SHIFT(0x10) | ||
74 | |||
75 | #define NE1SM_START_PG 0x20 /* First page of TX buffer */ | ||
76 | #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ | ||
77 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | ||
78 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | ||
79 | |||
80 | #define AX_GPOC_PPDSET BIT(6) | ||
81 | |||
82 | /* device private data */ | ||
83 | |||
84 | struct ax_device { | ||
85 | struct mii_bus *mii_bus; | ||
86 | struct mdiobb_ctrl bb_ctrl; | ||
87 | struct phy_device *phy_dev; | ||
88 | void __iomem *addr_memr; | ||
89 | u8 reg_memr; | ||
90 | int link; | ||
91 | int speed; | ||
92 | int duplex; | ||
93 | |||
94 | void __iomem *map2; | ||
95 | const struct ax_plat_data *plat; | ||
96 | |||
97 | unsigned char running; | ||
98 | unsigned char resume_open; | ||
99 | unsigned int irqflags; | ||
100 | |||
101 | u32 reg_offsets[0x20]; | ||
102 | }; | ||
103 | |||
104 | static inline struct ax_device *to_ax_dev(struct net_device *dev) | ||
105 | { | ||
106 | struct ei_device *ei_local = netdev_priv(dev); | ||
107 | return (struct ax_device *)(ei_local + 1); | ||
108 | } | ||
109 | |||
110 | /* | ||
111 | * ax_initial_check | ||
112 | * | ||
113 | * do an initial probe for the card to check wether it exists | ||
114 | * and is functional | ||
115 | */ | ||
116 | static int ax_initial_check(struct net_device *dev) | ||
117 | { | ||
118 | struct ei_device *ei_local = netdev_priv(dev); | ||
119 | void __iomem *ioaddr = ei_local->mem; | ||
120 | int reg0; | ||
121 | int regd; | ||
122 | |||
123 | reg0 = ei_inb(ioaddr); | ||
124 | if (reg0 == 0xFF) | ||
125 | return -ENODEV; | ||
126 | |||
127 | ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD); | ||
128 | regd = ei_inb(ioaddr + 0x0d); | ||
129 | ei_outb(0xff, ioaddr + 0x0d); | ||
130 | ei_outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); | ||
131 | ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ | ||
132 | if (ei_inb(ioaddr + EN0_COUNTER0) != 0) { | ||
133 | ei_outb(reg0, ioaddr); | ||
134 | ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */ | ||
135 | return -ENODEV; | ||
136 | } | ||
137 | |||
138 | return 0; | ||
139 | } | ||
140 | |||
141 | /* | ||
142 | * Hard reset the card. This used to pause for the same period that a | ||
143 | * 8390 reset command required, but that shouldn't be necessary. | ||
144 | */ | ||
145 | static void ax_reset_8390(struct net_device *dev) | ||
146 | { | ||
147 | struct ei_device *ei_local = netdev_priv(dev); | ||
148 | unsigned long reset_start_time = jiffies; | ||
149 | void __iomem *addr = (void __iomem *)dev->base_addr; | ||
150 | |||
151 | if (ei_debug > 1) | ||
152 | netdev_dbg(dev, "resetting the 8390 t=%ld\n", jiffies); | ||
153 | |||
154 | ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET); | ||
155 | |||
156 | ei_local->txing = 0; | ||
157 | ei_local->dmaing = 0; | ||
158 | |||
159 | /* This check _should_not_ be necessary, omit eventually. */ | ||
160 | while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) { | ||
161 | if (jiffies - reset_start_time > 2 * HZ / 100) { | ||
162 | netdev_warn(dev, "%s: did not complete.\n", __func__); | ||
163 | break; | ||
164 | } | ||
165 | } | ||
166 | |||
167 | ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */ | ||
168 | } | ||
169 | |||
170 | |||
171 | static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | ||
172 | int ring_page) | ||
173 | { | ||
174 | struct ei_device *ei_local = netdev_priv(dev); | ||
175 | void __iomem *nic_base = ei_local->mem; | ||
176 | |||
177 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | ||
178 | if (ei_local->dmaing) { | ||
179 | netdev_err(dev, "DMAing conflict in %s " | ||
180 | "[DMAstat:%d][irqlock:%d].\n", | ||
181 | __func__, | ||
182 | ei_local->dmaing, ei_local->irqlock); | ||
183 | return; | ||
184 | } | ||
185 | |||
186 | ei_local->dmaing |= 0x01; | ||
187 | ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); | ||
188 | ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); | ||
189 | ei_outb(0, nic_base + EN0_RCNTHI); | ||
190 | ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */ | ||
191 | ei_outb(ring_page, nic_base + EN0_RSARHI); | ||
192 | ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | ||
193 | |||
194 | if (ei_local->word16) | ||
195 | readsw(nic_base + NE_DATAPORT, hdr, | ||
196 | sizeof(struct e8390_pkt_hdr) >> 1); | ||
197 | else | ||
198 | readsb(nic_base + NE_DATAPORT, hdr, | ||
199 | sizeof(struct e8390_pkt_hdr)); | ||
200 | |||
201 | ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | ||
202 | ei_local->dmaing &= ~0x01; | ||
203 | |||
204 | le16_to_cpus(&hdr->count); | ||
205 | } | ||
206 | |||
207 | |||
208 | /* | ||
209 | * Block input and output, similar to the Crynwr packet driver. If | ||
210 | * you are porting to a new ethercard, look at the packet driver | ||
211 | * source for hints. The NEx000 doesn't share the on-board packet | ||
212 | * memory -- you have to put the packet out through the "remote DMA" | ||
213 | * dataport using ei_outb. | ||
214 | */ | ||
215 | static void ax_block_input(struct net_device *dev, int count, | ||
216 | struct sk_buff *skb, int ring_offset) | ||
217 | { | ||
218 | struct ei_device *ei_local = netdev_priv(dev); | ||
219 | void __iomem *nic_base = ei_local->mem; | ||
220 | char *buf = skb->data; | ||
221 | |||
222 | if (ei_local->dmaing) { | ||
223 | netdev_err(dev, | ||
224 | "DMAing conflict in %s " | ||
225 | "[DMAstat:%d][irqlock:%d].\n", | ||
226 | __func__, | ||
227 | ei_local->dmaing, ei_local->irqlock); | ||
228 | return; | ||
229 | } | ||
230 | |||
231 | ei_local->dmaing |= 0x01; | ||
232 | |||
233 | ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + NE_CMD); | ||
234 | ei_outb(count & 0xff, nic_base + EN0_RCNTLO); | ||
235 | ei_outb(count >> 8, nic_base + EN0_RCNTHI); | ||
236 | ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO); | ||
237 | ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI); | ||
238 | ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | ||
239 | |||
240 | if (ei_local->word16) { | ||
241 | readsw(nic_base + NE_DATAPORT, buf, count >> 1); | ||
242 | if (count & 0x01) | ||
243 | buf[count-1] = ei_inb(nic_base + NE_DATAPORT); | ||
244 | |||
245 | } else { | ||
246 | readsb(nic_base + NE_DATAPORT, buf, count); | ||
247 | } | ||
248 | |||
249 | ei_local->dmaing &= ~1; | ||
250 | } | ||
251 | |||
252 | static void ax_block_output(struct net_device *dev, int count, | ||
253 | const unsigned char *buf, const int start_page) | ||
254 | { | ||
255 | struct ei_device *ei_local = netdev_priv(dev); | ||
256 | void __iomem *nic_base = ei_local->mem; | ||
257 | unsigned long dma_start; | ||
258 | |||
259 | /* | ||
260 | * Round the count up for word writes. Do we need to do this? | ||
261 | * What effect will an odd byte count have on the 8390? I | ||
262 | * should check someday. | ||
263 | */ | ||
264 | if (ei_local->word16 && (count & 0x01)) | ||
265 | count++; | ||
266 | |||
267 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | ||
268 | if (ei_local->dmaing) { | ||
269 | netdev_err(dev, "DMAing conflict in %s." | ||
270 | "[DMAstat:%d][irqlock:%d]\n", | ||
271 | __func__, | ||
272 | ei_local->dmaing, ei_local->irqlock); | ||
273 | return; | ||
274 | } | ||
275 | |||
276 | ei_local->dmaing |= 0x01; | ||
277 | /* We should already be in page 0, but to be safe... */ | ||
278 | ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | ||
279 | |||
280 | ei_outb(ENISR_RDC, nic_base + EN0_ISR); | ||
281 | |||
282 | /* Now the normal output. */ | ||
283 | ei_outb(count & 0xff, nic_base + EN0_RCNTLO); | ||
284 | ei_outb(count >> 8, nic_base + EN0_RCNTHI); | ||
285 | ei_outb(0x00, nic_base + EN0_RSARLO); | ||
286 | ei_outb(start_page, nic_base + EN0_RSARHI); | ||
287 | |||
288 | ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | ||
289 | if (ei_local->word16) | ||
290 | writesw(nic_base + NE_DATAPORT, buf, count >> 1); | ||
291 | else | ||
292 | writesb(nic_base + NE_DATAPORT, buf, count); | ||
293 | |||
294 | dma_start = jiffies; | ||
295 | |||
296 | while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) { | ||
297 | if (jiffies - dma_start > 2 * HZ / 100) { /* 20ms */ | ||
298 | netdev_warn(dev, "timeout waiting for Tx RDC.\n"); | ||
299 | ax_reset_8390(dev); | ||
300 | ax_NS8390_init(dev, 1); | ||
301 | break; | ||
302 | } | ||
303 | } | ||
304 | |||
305 | ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | ||
306 | ei_local->dmaing &= ~0x01; | ||
307 | } | ||
308 | |||
309 | /* definitions for accessing MII/EEPROM interface */ | ||
310 | |||
311 | #define AX_MEMR EI_SHIFT(0x14) | ||
312 | #define AX_MEMR_MDC BIT(0) | ||
313 | #define AX_MEMR_MDIR BIT(1) | ||
314 | #define AX_MEMR_MDI BIT(2) | ||
315 | #define AX_MEMR_MDO BIT(3) | ||
316 | #define AX_MEMR_EECS BIT(4) | ||
317 | #define AX_MEMR_EEI BIT(5) | ||
318 | #define AX_MEMR_EEO BIT(6) | ||
319 | #define AX_MEMR_EECLK BIT(7) | ||
320 | |||
321 | static void ax_handle_link_change(struct net_device *dev) | ||
322 | { | ||
323 | struct ax_device *ax = to_ax_dev(dev); | ||
324 | struct phy_device *phy_dev = ax->phy_dev; | ||
325 | int status_change = 0; | ||
326 | |||
327 | if (phy_dev->link && ((ax->speed != phy_dev->speed) || | ||
328 | (ax->duplex != phy_dev->duplex))) { | ||
329 | |||
330 | ax->speed = phy_dev->speed; | ||
331 | ax->duplex = phy_dev->duplex; | ||
332 | status_change = 1; | ||
333 | } | ||
334 | |||
335 | if (phy_dev->link != ax->link) { | ||
336 | if (!phy_dev->link) { | ||
337 | ax->speed = 0; | ||
338 | ax->duplex = -1; | ||
339 | } | ||
340 | ax->link = phy_dev->link; | ||
341 | |||
342 | status_change = 1; | ||
343 | } | ||
344 | |||
345 | if (status_change) | ||
346 | phy_print_status(phy_dev); | ||
347 | } | ||
348 | |||
349 | static int ax_mii_probe(struct net_device *dev) | ||
350 | { | ||
351 | struct ax_device *ax = to_ax_dev(dev); | ||
352 | struct phy_device *phy_dev = NULL; | ||
353 | int ret; | ||
354 | |||
355 | /* find the first phy */ | ||
356 | phy_dev = phy_find_first(ax->mii_bus); | ||
357 | if (!phy_dev) { | ||
358 | netdev_err(dev, "no PHY found\n"); | ||
359 | return -ENODEV; | ||
360 | } | ||
361 | |||
362 | ret = phy_connect_direct(dev, phy_dev, ax_handle_link_change, 0, | ||
363 | PHY_INTERFACE_MODE_MII); | ||
364 | if (ret) { | ||
365 | netdev_err(dev, "Could not attach to PHY\n"); | ||
366 | return ret; | ||
367 | } | ||
368 | |||
369 | /* mask with MAC supported features */ | ||
370 | phy_dev->supported &= PHY_BASIC_FEATURES; | ||
371 | phy_dev->advertising = phy_dev->supported; | ||
372 | |||
373 | ax->phy_dev = phy_dev; | ||
374 | |||
375 | netdev_info(dev, "PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n", | ||
376 | phy_dev->drv->name, dev_name(&phy_dev->dev), phy_dev->irq); | ||
377 | |||
378 | return 0; | ||
379 | } | ||
380 | |||
381 | static void ax_phy_switch(struct net_device *dev, int on) | ||
382 | { | ||
383 | struct ei_device *ei_local = netdev_priv(dev); | ||
384 | struct ax_device *ax = to_ax_dev(dev); | ||
385 | |||
386 | u8 reg_gpoc = ax->plat->gpoc_val; | ||
387 | |||
388 | if (!!on) | ||
389 | reg_gpoc &= ~AX_GPOC_PPDSET; | ||
390 | else | ||
391 | reg_gpoc |= AX_GPOC_PPDSET; | ||
392 | |||
393 | ei_outb(reg_gpoc, ei_local->mem + EI_SHIFT(0x17)); | ||
394 | } | ||
395 | |||
396 | static int ax_open(struct net_device *dev) | ||
397 | { | ||
398 | struct ax_device *ax = to_ax_dev(dev); | ||
399 | int ret; | ||
400 | |||
401 | netdev_dbg(dev, "open\n"); | ||
402 | |||
403 | ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags, | ||
404 | dev->name, dev); | ||
405 | if (ret) | ||
406 | goto failed_request_irq; | ||
407 | |||
408 | /* turn the phy on (if turned off) */ | ||
409 | ax_phy_switch(dev, 1); | ||
410 | |||
411 | ret = ax_mii_probe(dev); | ||
412 | if (ret) | ||
413 | goto failed_mii_probe; | ||
414 | phy_start(ax->phy_dev); | ||
415 | |||
416 | ret = ax_ei_open(dev); | ||
417 | if (ret) | ||
418 | goto failed_ax_ei_open; | ||
419 | |||
420 | ax->running = 1; | ||
421 | |||
422 | return 0; | ||
423 | |||
424 | failed_ax_ei_open: | ||
425 | phy_disconnect(ax->phy_dev); | ||
426 | failed_mii_probe: | ||
427 | ax_phy_switch(dev, 0); | ||
428 | free_irq(dev->irq, dev); | ||
429 | failed_request_irq: | ||
430 | return ret; | ||
431 | } | ||
432 | |||
433 | static int ax_close(struct net_device *dev) | ||
434 | { | ||
435 | struct ax_device *ax = to_ax_dev(dev); | ||
436 | |||
437 | netdev_dbg(dev, "close\n"); | ||
438 | |||
439 | ax->running = 0; | ||
440 | wmb(); | ||
441 | |||
442 | ax_ei_close(dev); | ||
443 | |||
444 | /* turn the phy off */ | ||
445 | ax_phy_switch(dev, 0); | ||
446 | phy_disconnect(ax->phy_dev); | ||
447 | |||
448 | free_irq(dev->irq, dev); | ||
449 | return 0; | ||
450 | } | ||
451 | |||
452 | static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd) | ||
453 | { | ||
454 | struct ax_device *ax = to_ax_dev(dev); | ||
455 | struct phy_device *phy_dev = ax->phy_dev; | ||
456 | |||
457 | if (!netif_running(dev)) | ||
458 | return -EINVAL; | ||
459 | |||
460 | if (!phy_dev) | ||
461 | return -ENODEV; | ||
462 | |||
463 | return phy_mii_ioctl(phy_dev, req, cmd); | ||
464 | } | ||
465 | |||
466 | /* ethtool ops */ | ||
467 | |||
468 | static void ax_get_drvinfo(struct net_device *dev, | ||
469 | struct ethtool_drvinfo *info) | ||
470 | { | ||
471 | struct platform_device *pdev = to_platform_device(dev->dev.parent); | ||
472 | |||
473 | strcpy(info->driver, DRV_NAME); | ||
474 | strcpy(info->version, DRV_VERSION); | ||
475 | strcpy(info->bus_info, pdev->name); | ||
476 | } | ||
477 | |||
478 | static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | ||
479 | { | ||
480 | struct ax_device *ax = to_ax_dev(dev); | ||
481 | struct phy_device *phy_dev = ax->phy_dev; | ||
482 | |||
483 | if (!phy_dev) | ||
484 | return -ENODEV; | ||
485 | |||
486 | return phy_ethtool_gset(phy_dev, cmd); | ||
487 | } | ||
488 | |||
489 | static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | ||
490 | { | ||
491 | struct ax_device *ax = to_ax_dev(dev); | ||
492 | struct phy_device *phy_dev = ax->phy_dev; | ||
493 | |||
494 | if (!phy_dev) | ||
495 | return -ENODEV; | ||
496 | |||
497 | return phy_ethtool_sset(phy_dev, cmd); | ||
498 | } | ||
499 | |||
500 | static const struct ethtool_ops ax_ethtool_ops = { | ||
501 | .get_drvinfo = ax_get_drvinfo, | ||
502 | .get_settings = ax_get_settings, | ||
503 | .set_settings = ax_set_settings, | ||
504 | .get_link = ethtool_op_get_link, | ||
505 | }; | ||
506 | |||
507 | #ifdef CONFIG_AX88796_93CX6 | ||
508 | static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom) | ||
509 | { | ||
510 | struct ei_device *ei_local = eeprom->data; | ||
511 | u8 reg = ei_inb(ei_local->mem + AX_MEMR); | ||
512 | |||
513 | eeprom->reg_data_in = reg & AX_MEMR_EEI; | ||
514 | eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */ | ||
515 | eeprom->reg_data_clock = reg & AX_MEMR_EECLK; | ||
516 | eeprom->reg_chip_select = reg & AX_MEMR_EECS; | ||
517 | } | ||
518 | |||
519 | static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom) | ||
520 | { | ||
521 | struct ei_device *ei_local = eeprom->data; | ||
522 | u8 reg = ei_inb(ei_local->mem + AX_MEMR); | ||
523 | |||
524 | reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS); | ||
525 | |||
526 | if (eeprom->reg_data_in) | ||
527 | reg |= AX_MEMR_EEI; | ||
528 | if (eeprom->reg_data_clock) | ||
529 | reg |= AX_MEMR_EECLK; | ||
530 | if (eeprom->reg_chip_select) | ||
531 | reg |= AX_MEMR_EECS; | ||
532 | |||
533 | ei_outb(reg, ei_local->mem + AX_MEMR); | ||
534 | udelay(10); | ||
535 | } | ||
536 | #endif | ||
537 | |||
538 | static const struct net_device_ops ax_netdev_ops = { | ||
539 | .ndo_open = ax_open, | ||
540 | .ndo_stop = ax_close, | ||
541 | .ndo_do_ioctl = ax_ioctl, | ||
542 | |||
543 | .ndo_start_xmit = ax_ei_start_xmit, | ||
544 | .ndo_tx_timeout = ax_ei_tx_timeout, | ||
545 | .ndo_get_stats = ax_ei_get_stats, | ||
546 | .ndo_set_multicast_list = ax_ei_set_multicast_list, | ||
547 | .ndo_validate_addr = eth_validate_addr, | ||
548 | .ndo_set_mac_address = eth_mac_addr, | ||
549 | .ndo_change_mtu = eth_change_mtu, | ||
550 | #ifdef CONFIG_NET_POLL_CONTROLLER | ||
551 | .ndo_poll_controller = ax_ei_poll, | ||
552 | #endif | ||
553 | }; | ||
554 | |||
555 | static void ax_bb_mdc(struct mdiobb_ctrl *ctrl, int level) | ||
556 | { | ||
557 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); | ||
558 | |||
559 | if (level) | ||
560 | ax->reg_memr |= AX_MEMR_MDC; | ||
561 | else | ||
562 | ax->reg_memr &= ~AX_MEMR_MDC; | ||
563 | |||
564 | ei_outb(ax->reg_memr, ax->addr_memr); | ||
565 | } | ||
566 | |||
567 | static void ax_bb_dir(struct mdiobb_ctrl *ctrl, int output) | ||
568 | { | ||
569 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); | ||
570 | |||
571 | if (output) | ||
572 | ax->reg_memr &= ~AX_MEMR_MDIR; | ||
573 | else | ||
574 | ax->reg_memr |= AX_MEMR_MDIR; | ||
575 | |||
576 | ei_outb(ax->reg_memr, ax->addr_memr); | ||
577 | } | ||
578 | |||
579 | static void ax_bb_set_data(struct mdiobb_ctrl *ctrl, int value) | ||
580 | { | ||
581 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); | ||
582 | |||
583 | if (value) | ||
584 | ax->reg_memr |= AX_MEMR_MDO; | ||
585 | else | ||
586 | ax->reg_memr &= ~AX_MEMR_MDO; | ||
587 | |||
588 | ei_outb(ax->reg_memr, ax->addr_memr); | ||
589 | } | ||
590 | |||
591 | static int ax_bb_get_data(struct mdiobb_ctrl *ctrl) | ||
592 | { | ||
593 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); | ||
594 | int reg_memr = ei_inb(ax->addr_memr); | ||
595 | |||
596 | return reg_memr & AX_MEMR_MDI ? 1 : 0; | ||
597 | } | ||
598 | |||
599 | static struct mdiobb_ops bb_ops = { | ||
600 | .owner = THIS_MODULE, | ||
601 | .set_mdc = ax_bb_mdc, | ||
602 | .set_mdio_dir = ax_bb_dir, | ||
603 | .set_mdio_data = ax_bb_set_data, | ||
604 | .get_mdio_data = ax_bb_get_data, | ||
605 | }; | ||
606 | |||
607 | /* setup code */ | ||
608 | |||
609 | static int ax_mii_init(struct net_device *dev) | ||
610 | { | ||
611 | struct platform_device *pdev = to_platform_device(dev->dev.parent); | ||
612 | struct ei_device *ei_local = netdev_priv(dev); | ||
613 | struct ax_device *ax = to_ax_dev(dev); | ||
614 | int err, i; | ||
615 | |||
616 | ax->bb_ctrl.ops = &bb_ops; | ||
617 | ax->addr_memr = ei_local->mem + AX_MEMR; | ||
618 | ax->mii_bus = alloc_mdio_bitbang(&ax->bb_ctrl); | ||
619 | if (!ax->mii_bus) { | ||
620 | err = -ENOMEM; | ||
621 | goto out; | ||
622 | } | ||
623 | |||
624 | ax->mii_bus->name = "ax88796_mii_bus"; | ||
625 | ax->mii_bus->parent = dev->dev.parent; | ||
626 | snprintf(ax->mii_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id); | ||
627 | |||
628 | ax->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); | ||
629 | if (!ax->mii_bus->irq) { | ||
630 | err = -ENOMEM; | ||
631 | goto out_free_mdio_bitbang; | ||
632 | } | ||
633 | |||
634 | for (i = 0; i < PHY_MAX_ADDR; i++) | ||
635 | ax->mii_bus->irq[i] = PHY_POLL; | ||
636 | |||
637 | err = mdiobus_register(ax->mii_bus); | ||
638 | if (err) | ||
639 | goto out_free_irq; | ||
640 | |||
641 | return 0; | ||
642 | |||
643 | out_free_irq: | ||
644 | kfree(ax->mii_bus->irq); | ||
645 | out_free_mdio_bitbang: | ||
646 | free_mdio_bitbang(ax->mii_bus); | ||
647 | out: | ||
648 | return err; | ||
649 | } | ||
650 | |||
651 | static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local) | ||
652 | { | ||
653 | void __iomem *ioaddr = ei_local->mem; | ||
654 | struct ax_device *ax = to_ax_dev(dev); | ||
655 | |||
656 | /* Select page 0 */ | ||
657 | ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_STOP, ioaddr + E8390_CMD); | ||
658 | |||
659 | /* set to byte access */ | ||
660 | ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG); | ||
661 | ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17)); | ||
662 | } | ||
663 | |||
664 | /* | ||
665 | * ax_init_dev | ||
666 | * | ||
667 | * initialise the specified device, taking care to note the MAC | ||
668 | * address it may already have (if configured), ensure | ||
669 | * the device is ready to be used by lib8390.c and registerd with | ||
670 | * the network layer. | ||
671 | */ | ||
672 | static int ax_init_dev(struct net_device *dev) | ||
673 | { | ||
674 | struct ei_device *ei_local = netdev_priv(dev); | ||
675 | struct ax_device *ax = to_ax_dev(dev); | ||
676 | void __iomem *ioaddr = ei_local->mem; | ||
677 | unsigned int start_page; | ||
678 | unsigned int stop_page; | ||
679 | int ret; | ||
680 | int i; | ||
681 | |||
682 | ret = ax_initial_check(dev); | ||
683 | if (ret) | ||
684 | goto err_out; | ||
685 | |||
686 | /* setup goes here */ | ||
687 | |||
688 | ax_initial_setup(dev, ei_local); | ||
689 | |||
690 | /* read the mac from the card prom if we need it */ | ||
691 | |||
692 | if (ax->plat->flags & AXFLG_HAS_EEPROM) { | ||
693 | unsigned char SA_prom[32]; | ||
694 | |||
695 | for (i = 0; i < sizeof(SA_prom); i += 2) { | ||
696 | SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT); | ||
697 | SA_prom[i + 1] = ei_inb(ioaddr + NE_DATAPORT); | ||
698 | } | ||
699 | |||
700 | if (ax->plat->wordlength == 2) | ||
701 | for (i = 0; i < 16; i++) | ||
702 | SA_prom[i] = SA_prom[i+i]; | ||
703 | |||
704 | memcpy(dev->dev_addr, SA_prom, 6); | ||
705 | } | ||
706 | |||
707 | #ifdef CONFIG_AX88796_93CX6 | ||
708 | if (ax->plat->flags & AXFLG_HAS_93CX6) { | ||
709 | unsigned char mac_addr[6]; | ||
710 | struct eeprom_93cx6 eeprom; | ||
711 | |||
712 | eeprom.data = ei_local; | ||
713 | eeprom.register_read = ax_eeprom_register_read; | ||
714 | eeprom.register_write = ax_eeprom_register_write; | ||
715 | eeprom.width = PCI_EEPROM_WIDTH_93C56; | ||
716 | |||
717 | eeprom_93cx6_multiread(&eeprom, 0, | ||
718 | (__le16 __force *)mac_addr, | ||
719 | sizeof(mac_addr) >> 1); | ||
720 | |||
721 | memcpy(dev->dev_addr, mac_addr, 6); | ||
722 | } | ||
723 | #endif | ||
724 | if (ax->plat->wordlength == 2) { | ||
725 | /* We must set the 8390 for word mode. */ | ||
726 | ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG); | ||
727 | start_page = NESM_START_PG; | ||
728 | stop_page = NESM_STOP_PG; | ||
729 | } else { | ||
730 | start_page = NE1SM_START_PG; | ||
731 | stop_page = NE1SM_STOP_PG; | ||
732 | } | ||
733 | |||
734 | /* load the mac-address from the device */ | ||
735 | if (ax->plat->flags & AXFLG_MAC_FROMDEV) { | ||
736 | ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, | ||
737 | ei_local->mem + E8390_CMD); /* 0x61 */ | ||
738 | for (i = 0; i < ETHER_ADDR_LEN; i++) | ||
739 | dev->dev_addr[i] = | ||
740 | ei_inb(ioaddr + EN1_PHYS_SHIFT(i)); | ||
741 | } | ||
742 | |||
743 | if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) && | ||
744 | ax->plat->mac_addr) | ||
745 | memcpy(dev->dev_addr, ax->plat->mac_addr, | ||
746 | ETHER_ADDR_LEN); | ||
747 | |||
748 | ax_reset_8390(dev); | ||
749 | |||
750 | ei_local->name = "AX88796"; | ||
751 | ei_local->tx_start_page = start_page; | ||
752 | ei_local->stop_page = stop_page; | ||
753 | ei_local->word16 = (ax->plat->wordlength == 2); | ||
754 | ei_local->rx_start_page = start_page + TX_PAGES; | ||
755 | |||
756 | #ifdef PACKETBUF_MEMSIZE | ||
757 | /* Allow the packet buffer size to be overridden by know-it-alls. */ | ||
758 | ei_local->stop_page = ei_local->tx_start_page + PACKETBUF_MEMSIZE; | ||
759 | #endif | ||
760 | |||
761 | ei_local->reset_8390 = &ax_reset_8390; | ||
762 | ei_local->block_input = &ax_block_input; | ||
763 | ei_local->block_output = &ax_block_output; | ||
764 | ei_local->get_8390_hdr = &ax_get_8390_hdr; | ||
765 | ei_local->priv = 0; | ||
766 | |||
767 | dev->netdev_ops = &ax_netdev_ops; | ||
768 | dev->ethtool_ops = &ax_ethtool_ops; | ||
769 | |||
770 | ret = ax_mii_init(dev); | ||
771 | if (ret) | ||
772 | goto out_irq; | ||
773 | |||
774 | ax_NS8390_init(dev, 0); | ||
775 | |||
776 | ret = register_netdev(dev); | ||
777 | if (ret) | ||
778 | goto out_irq; | ||
779 | |||
780 | netdev_info(dev, "%dbit, irq %d, %lx, MAC: %pM\n", | ||
781 | ei_local->word16 ? 16 : 8, dev->irq, dev->base_addr, | ||
782 | dev->dev_addr); | ||
783 | |||
784 | return 0; | ||
785 | |||
786 | out_irq: | ||
787 | /* cleanup irq */ | ||
788 | free_irq(dev->irq, dev); | ||
789 | err_out: | ||
790 | return ret; | ||
791 | } | ||
792 | |||
793 | static int ax_remove(struct platform_device *pdev) | ||
794 | { | ||
795 | struct net_device *dev = platform_get_drvdata(pdev); | ||
796 | struct ei_device *ei_local = netdev_priv(dev); | ||
797 | struct ax_device *ax = to_ax_dev(dev); | ||
798 | struct resource *mem; | ||
799 | |||
800 | unregister_netdev(dev); | ||
801 | free_irq(dev->irq, dev); | ||
802 | |||
803 | iounmap(ei_local->mem); | ||
804 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
805 | release_mem_region(mem->start, resource_size(mem)); | ||
806 | |||
807 | if (ax->map2) { | ||
808 | iounmap(ax->map2); | ||
809 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 1); | ||
810 | release_mem_region(mem->start, resource_size(mem)); | ||
811 | } | ||
812 | |||
813 | free_netdev(dev); | ||
814 | |||
815 | return 0; | ||
816 | } | ||
817 | |||
818 | /* | ||
819 | * ax_probe | ||
820 | * | ||
821 | * This is the entry point when the platform device system uses to | ||
822 | * notify us of a new device to attach to. Allocate memory, find the | ||
823 | * resources and information passed, and map the necessary registers. | ||
824 | */ | ||
825 | static int ax_probe(struct platform_device *pdev) | ||
826 | { | ||
827 | struct net_device *dev; | ||
828 | struct ei_device *ei_local; | ||
829 | struct ax_device *ax; | ||
830 | struct resource *irq, *mem, *mem2; | ||
831 | resource_size_t mem_size, mem2_size = 0; | ||
832 | int ret = 0; | ||
833 | |||
834 | dev = ax__alloc_ei_netdev(sizeof(struct ax_device)); | ||
835 | if (dev == NULL) | ||
836 | return -ENOMEM; | ||
837 | |||
838 | /* ok, let's setup our device */ | ||
839 | SET_NETDEV_DEV(dev, &pdev->dev); | ||
840 | ei_local = netdev_priv(dev); | ||
841 | ax = to_ax_dev(dev); | ||
842 | |||
843 | ax->plat = pdev->dev.platform_data; | ||
844 | platform_set_drvdata(pdev, dev); | ||
845 | |||
846 | ei_local->rxcr_base = ax->plat->rcr_val; | ||
847 | |||
848 | /* find the platform resources */ | ||
849 | irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | ||
850 | if (!irq) { | ||
851 | dev_err(&pdev->dev, "no IRQ specified\n"); | ||
852 | ret = -ENXIO; | ||
853 | goto exit_mem; | ||
854 | } | ||
855 | |||
856 | dev->irq = irq->start; | ||
857 | ax->irqflags = irq->flags & IRQF_TRIGGER_MASK; | ||
858 | |||
859 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
860 | if (!mem) { | ||
861 | dev_err(&pdev->dev, "no MEM specified\n"); | ||
862 | ret = -ENXIO; | ||
863 | goto exit_mem; | ||
864 | } | ||
865 | |||
866 | mem_size = resource_size(mem); | ||
867 | |||
868 | /* | ||
869 | * setup the register offsets from either the platform data or | ||
870 | * by using the size of the resource provided | ||
871 | */ | ||
872 | if (ax->plat->reg_offsets) | ||
873 | ei_local->reg_offset = ax->plat->reg_offsets; | ||
874 | else { | ||
875 | ei_local->reg_offset = ax->reg_offsets; | ||
876 | for (ret = 0; ret < 0x18; ret++) | ||
877 | ax->reg_offsets[ret] = (mem_size / 0x18) * ret; | ||
878 | } | ||
879 | |||
880 | if (!request_mem_region(mem->start, mem_size, pdev->name)) { | ||
881 | dev_err(&pdev->dev, "cannot reserve registers\n"); | ||
882 | ret = -ENXIO; | ||
883 | goto exit_mem; | ||
884 | } | ||
885 | |||
886 | ei_local->mem = ioremap(mem->start, mem_size); | ||
887 | dev->base_addr = (unsigned long)ei_local->mem; | ||
888 | |||
889 | if (ei_local->mem == NULL) { | ||
890 | dev_err(&pdev->dev, "Cannot ioremap area %pR\n", mem); | ||
891 | |||
892 | ret = -ENXIO; | ||
893 | goto exit_req; | ||
894 | } | ||
895 | |||
896 | /* look for reset area */ | ||
897 | mem2 = platform_get_resource(pdev, IORESOURCE_MEM, 1); | ||
898 | if (!mem2) { | ||
899 | if (!ax->plat->reg_offsets) { | ||
900 | for (ret = 0; ret < 0x20; ret++) | ||
901 | ax->reg_offsets[ret] = (mem_size / 0x20) * ret; | ||
902 | } | ||
903 | } else { | ||
904 | mem2_size = resource_size(mem2); | ||
905 | |||
906 | if (!request_mem_region(mem2->start, mem2_size, pdev->name)) { | ||
907 | dev_err(&pdev->dev, "cannot reserve registers\n"); | ||
908 | ret = -ENXIO; | ||
909 | goto exit_mem1; | ||
910 | } | ||
911 | |||
912 | ax->map2 = ioremap(mem2->start, mem2_size); | ||
913 | if (!ax->map2) { | ||
914 | dev_err(&pdev->dev, "cannot map reset register\n"); | ||
915 | ret = -ENXIO; | ||
916 | goto exit_mem2; | ||
917 | } | ||
918 | |||
919 | ei_local->reg_offset[0x1f] = ax->map2 - ei_local->mem; | ||
920 | } | ||
921 | |||
922 | /* got resources, now initialise and register device */ | ||
923 | ret = ax_init_dev(dev); | ||
924 | if (!ret) | ||
925 | return 0; | ||
926 | |||
927 | if (!ax->map2) | ||
928 | goto exit_mem1; | ||
929 | |||
930 | iounmap(ax->map2); | ||
931 | |||
932 | exit_mem2: | ||
933 | release_mem_region(mem2->start, mem2_size); | ||
934 | |||
935 | exit_mem1: | ||
936 | iounmap(ei_local->mem); | ||
937 | |||
938 | exit_req: | ||
939 | release_mem_region(mem->start, mem_size); | ||
940 | |||
941 | exit_mem: | ||
942 | free_netdev(dev); | ||
943 | |||
944 | return ret; | ||
945 | } | ||
946 | |||
947 | /* suspend and resume */ | ||
948 | |||
949 | #ifdef CONFIG_PM | ||
950 | static int ax_suspend(struct platform_device *dev, pm_message_t state) | ||
951 | { | ||
952 | struct net_device *ndev = platform_get_drvdata(dev); | ||
953 | struct ax_device *ax = to_ax_dev(ndev); | ||
954 | |||
955 | ax->resume_open = ax->running; | ||
956 | |||
957 | netif_device_detach(ndev); | ||
958 | ax_close(ndev); | ||
959 | |||
960 | return 0; | ||
961 | } | ||
962 | |||
963 | static int ax_resume(struct platform_device *pdev) | ||
964 | { | ||
965 | struct net_device *ndev = platform_get_drvdata(pdev); | ||
966 | struct ax_device *ax = to_ax_dev(ndev); | ||
967 | |||
968 | ax_initial_setup(ndev, netdev_priv(ndev)); | ||
969 | ax_NS8390_init(ndev, ax->resume_open); | ||
970 | netif_device_attach(ndev); | ||
971 | |||
972 | if (ax->resume_open) | ||
973 | ax_open(ndev); | ||
974 | |||
975 | return 0; | ||
976 | } | ||
977 | |||
978 | #else | ||
979 | #define ax_suspend NULL | ||
980 | #define ax_resume NULL | ||
981 | #endif | ||
982 | |||
983 | static struct platform_driver axdrv = { | ||
984 | .driver = { | ||
985 | .name = "ax88796", | ||
986 | .owner = THIS_MODULE, | ||
987 | }, | ||
988 | .probe = ax_probe, | ||
989 | .remove = ax_remove, | ||
990 | .suspend = ax_suspend, | ||
991 | .resume = ax_resume, | ||
992 | }; | ||
993 | |||
994 | static int __init axdrv_init(void) | ||
995 | { | ||
996 | return platform_driver_register(&axdrv); | ||
997 | } | ||
998 | |||
999 | static void __exit axdrv_exit(void) | ||
1000 | { | ||
1001 | platform_driver_unregister(&axdrv); | ||
1002 | } | ||
1003 | |||
1004 | module_init(axdrv_init); | ||
1005 | module_exit(axdrv_exit); | ||
1006 | |||
1007 | MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver"); | ||
1008 | MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); | ||
1009 | MODULE_LICENSE("GPL v2"); | ||
1010 | MODULE_ALIAS("platform:ax88796"); | ||