aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/jazzsonic.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/jazzsonic.c')
-rw-r--r--drivers/net/jazzsonic.c186
1 files changed, 74 insertions, 112 deletions
diff --git a/drivers/net/jazzsonic.c b/drivers/net/jazzsonic.c
index 7fec613e1675..8423cb6875f0 100644
--- a/drivers/net/jazzsonic.c
+++ b/drivers/net/jazzsonic.c
@@ -1,5 +1,10 @@
1/* 1/*
2 * sonic.c 2 * jazzsonic.c
3 *
4 * (C) 2005 Finn Thain
5 *
6 * Converted to DMA API, and (from the mac68k project) introduced
7 * dhd's support for 16-bit cards.
3 * 8 *
4 * (C) 1996,1998 by Thomas Bogendoerfer (tsbogend@alpha.franken.de) 9 * (C) 1996,1998 by Thomas Bogendoerfer (tsbogend@alpha.franken.de)
5 * 10 *
@@ -28,8 +33,8 @@
28#include <linux/netdevice.h> 33#include <linux/netdevice.h>
29#include <linux/etherdevice.h> 34#include <linux/etherdevice.h>
30#include <linux/skbuff.h> 35#include <linux/skbuff.h>
31#include <linux/bitops.h>
32#include <linux/device.h> 36#include <linux/device.h>
37#include <linux/dma-mapping.h>
33 38
34#include <asm/bootinfo.h> 39#include <asm/bootinfo.h>
35#include <asm/system.h> 40#include <asm/system.h>
@@ -44,22 +49,20 @@ static struct platform_device *jazz_sonic_device;
44 49
45#define SONIC_MEM_SIZE 0x100 50#define SONIC_MEM_SIZE 0x100
46 51
47#define SREGS_PAD(n) u16 n;
48
49#include "sonic.h" 52#include "sonic.h"
50 53
51/* 54/*
52 * Macros to access SONIC registers 55 * Macros to access SONIC registers
53 */ 56 */
54#define SONIC_READ(reg) (*((volatile unsigned int *)base_addr+reg)) 57#define SONIC_READ(reg) (*((volatile unsigned int *)dev->base_addr+reg))
55 58
56#define SONIC_WRITE(reg,val) \ 59#define SONIC_WRITE(reg,val) \
57do { \ 60do { \
58 *((volatile unsigned int *)base_addr+(reg)) = (val); \ 61 *((volatile unsigned int *)dev->base_addr+(reg)) = (val); \
59} while (0) 62} while (0)
60 63
61 64
62/* use 0 for production, 1 for verification, >2 for debug */ 65/* use 0 for production, 1 for verification, >1 for debug */
63#ifdef SONIC_DEBUG 66#ifdef SONIC_DEBUG
64static unsigned int sonic_debug = SONIC_DEBUG; 67static unsigned int sonic_debug = SONIC_DEBUG;
65#else 68#else
@@ -85,18 +88,18 @@ static unsigned short known_revisions[] =
85 0xffff /* end of list */ 88 0xffff /* end of list */
86}; 89};
87 90
88static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr, 91static int __init sonic_probe1(struct net_device *dev)
89 unsigned int irq)
90{ 92{
91 static unsigned version_printed; 93 static unsigned version_printed;
92 unsigned int silicon_revision; 94 unsigned int silicon_revision;
93 unsigned int val; 95 unsigned int val;
94 struct sonic_local *lp; 96 struct sonic_local *lp = netdev_priv(dev);
95 int err = -ENODEV; 97 int err = -ENODEV;
96 int i; 98 int i;
97 99
98 if (!request_mem_region(base_addr, SONIC_MEM_SIZE, jazz_sonic_string)) 100 if (!request_mem_region(dev->base_addr, SONIC_MEM_SIZE, jazz_sonic_string))
99 return -EBUSY; 101 return -EBUSY;
102
100 /* 103 /*
101 * get the Silicon Revision ID. If this is one of the known 104 * get the Silicon Revision ID. If this is one of the known
102 * one assume that we found a SONIC ethernet controller at 105 * one assume that we found a SONIC ethernet controller at
@@ -120,11 +123,7 @@ static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr,
120 if (sonic_debug && version_printed++ == 0) 123 if (sonic_debug && version_printed++ == 0)
121 printk(version); 124 printk(version);
122 125
123 printk("%s: Sonic ethernet found at 0x%08lx, ", dev->name, base_addr); 126 printk(KERN_INFO "%s: Sonic ethernet found at 0x%08lx, ", lp->device->bus_id, dev->base_addr);
124
125 /* Fill in the 'dev' fields. */
126 dev->base_addr = base_addr;
127 dev->irq = irq;
128 127
129 /* 128 /*
130 * Put the sonic into software reset, then 129 * Put the sonic into software reset, then
@@ -138,84 +137,44 @@ static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr,
138 dev->dev_addr[i*2+1] = val >> 8; 137 dev->dev_addr[i*2+1] = val >> 8;
139 } 138 }
140 139
141 printk("HW Address ");
142 for (i = 0; i < 6; i++) {
143 printk("%2.2x", dev->dev_addr[i]);
144 if (i<5)
145 printk(":");
146 }
147
148 printk(" IRQ %d\n", irq);
149
150 err = -ENOMEM; 140 err = -ENOMEM;
151 141
152 /* Initialize the device structure. */ 142 /* Initialize the device structure. */
153 if (dev->priv == NULL) {
154 /*
155 * the memory be located in the same 64kb segment
156 */
157 lp = NULL;
158 i = 0;
159 do {
160 lp = kmalloc(sizeof(*lp), GFP_KERNEL);
161 if ((unsigned long) lp >> 16
162 != ((unsigned long)lp + sizeof(*lp) ) >> 16) {
163 /* FIXME, free the memory later */
164 kfree(lp);
165 lp = NULL;
166 }
167 } while (lp == NULL && i++ < 20);
168
169 if (lp == NULL) {
170 printk("%s: couldn't allocate memory for descriptors\n",
171 dev->name);
172 goto out;
173 }
174 143
175 memset(lp, 0, sizeof(struct sonic_local)); 144 lp->dma_bitmode = SONIC_BITMODE32;
176
177 /* get the virtual dma address */
178 lp->cda_laddr = vdma_alloc(CPHYSADDR(lp),sizeof(*lp));
179 if (lp->cda_laddr == ~0UL) {
180 printk("%s: couldn't get DMA page entry for "
181 "descriptors\n", dev->name);
182 goto out1;
183 }
184
185 lp->tda_laddr = lp->cda_laddr + sizeof (lp->cda);
186 lp->rra_laddr = lp->tda_laddr + sizeof (lp->tda);
187 lp->rda_laddr = lp->rra_laddr + sizeof (lp->rra);
188
189 /* allocate receive buffer area */
190 /* FIXME, maybe we should use skbs */
191 lp->rba = kmalloc(SONIC_NUM_RRS * SONIC_RBSIZE, GFP_KERNEL);
192 if (!lp->rba) {
193 printk("%s: couldn't allocate receive buffers\n",
194 dev->name);
195 goto out2;
196 }
197 145
198 /* get virtual dma address */ 146 /* Allocate the entire chunk of memory for the descriptors.
199 lp->rba_laddr = vdma_alloc(CPHYSADDR(lp->rba), 147 Note that this cannot cross a 64K boundary. */
200 SONIC_NUM_RRS * SONIC_RBSIZE); 148 if ((lp->descriptors = dma_alloc_coherent(lp->device,
201 if (lp->rba_laddr == ~0UL) { 149 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
202 printk("%s: couldn't get DMA page entry for receive " 150 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
203 "buffers\n",dev->name); 151 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
204 goto out3; 152 goto out;
205 }
206
207 /* now convert pointer to KSEG1 pointer */
208 lp->rba = (char *)KSEG1ADDR(lp->rba);
209 flush_cache_all();
210 dev->priv = (struct sonic_local *)KSEG1ADDR(lp);
211 } 153 }
212 154
213 lp = (struct sonic_local *)dev->priv; 155 /* Now set up the pointers to point to the appropriate places */
156 lp->cda = lp->descriptors;
157 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
158 * SONIC_BUS_SCALE(lp->dma_bitmode));
159 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
160 * SONIC_BUS_SCALE(lp->dma_bitmode));
161 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
162 * SONIC_BUS_SCALE(lp->dma_bitmode));
163
164 lp->cda_laddr = lp->descriptors_laddr;
165 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
166 * SONIC_BUS_SCALE(lp->dma_bitmode));
167 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
168 * SONIC_BUS_SCALE(lp->dma_bitmode));
169 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
170 * SONIC_BUS_SCALE(lp->dma_bitmode));
171
214 dev->open = sonic_open; 172 dev->open = sonic_open;
215 dev->stop = sonic_close; 173 dev->stop = sonic_close;
216 dev->hard_start_xmit = sonic_send_packet; 174 dev->hard_start_xmit = sonic_send_packet;
217 dev->get_stats = sonic_get_stats; 175 dev->get_stats = sonic_get_stats;
218 dev->set_multicast_list = &sonic_multicast_list; 176 dev->set_multicast_list = &sonic_multicast_list;
177 dev->tx_timeout = sonic_tx_timeout;
219 dev->watchdog_timeo = TX_TIMEOUT; 178 dev->watchdog_timeo = TX_TIMEOUT;
220 179
221 /* 180 /*
@@ -226,14 +185,8 @@ static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr,
226 SONIC_WRITE(SONIC_MPT,0xffff); 185 SONIC_WRITE(SONIC_MPT,0xffff);
227 186
228 return 0; 187 return 0;
229out3:
230 kfree(lp->rba);
231out2:
232 vdma_free(lp->cda_laddr);
233out1:
234 kfree(lp);
235out: 188out:
236 release_region(base_addr, SONIC_MEM_SIZE); 189 release_region(dev->base_addr, SONIC_MEM_SIZE);
237 return err; 190 return err;
238} 191}
239 192
@@ -245,7 +198,6 @@ static int __init jazz_sonic_probe(struct device *device)
245{ 198{
246 struct net_device *dev; 199 struct net_device *dev;
247 struct sonic_local *lp; 200 struct sonic_local *lp;
248 unsigned long base_addr;
249 int err = 0; 201 int err = 0;
250 int i; 202 int i;
251 203
@@ -255,21 +207,26 @@ static int __init jazz_sonic_probe(struct device *device)
255 if (mips_machgroup != MACH_GROUP_JAZZ) 207 if (mips_machgroup != MACH_GROUP_JAZZ)
256 return -ENODEV; 208 return -ENODEV;
257 209
258 dev = alloc_etherdev(0); 210 dev = alloc_etherdev(sizeof(struct sonic_local));
259 if (!dev) 211 if (!dev)
260 return -ENOMEM; 212 return -ENOMEM;
261 213
214 lp = netdev_priv(dev);
215 lp->device = device;
216 SET_NETDEV_DEV(dev, device);
217 SET_MODULE_OWNER(dev);
218
262 netdev_boot_setup_check(dev); 219 netdev_boot_setup_check(dev);
263 base_addr = dev->base_addr;
264 220
265 if (base_addr >= KSEG0) { /* Check a single specified location. */ 221 if (dev->base_addr >= KSEG0) { /* Check a single specified location. */
266 err = sonic_probe1(dev, base_addr, dev->irq); 222 err = sonic_probe1(dev);
267 } else if (base_addr != 0) { /* Don't probe at all. */ 223 } else if (dev->base_addr != 0) { /* Don't probe at all. */
268 err = -ENXIO; 224 err = -ENXIO;
269 } else { 225 } else {
270 for (i = 0; sonic_portlist[i].port; i++) { 226 for (i = 0; sonic_portlist[i].port; i++) {
271 int io = sonic_portlist[i].port; 227 dev->base_addr = sonic_portlist[i].port;
272 if (sonic_probe1(dev, io, sonic_portlist[i].irq) == 0) 228 dev->irq = sonic_portlist[i].irq;
229 if (sonic_probe1(dev) == 0)
273 break; 230 break;
274 } 231 }
275 if (!sonic_portlist[i].port) 232 if (!sonic_portlist[i].port)
@@ -281,14 +238,17 @@ static int __init jazz_sonic_probe(struct device *device)
281 if (err) 238 if (err)
282 goto out1; 239 goto out1;
283 240
241 printk("%s: MAC ", dev->name);
242 for (i = 0; i < 6; i++) {
243 printk("%2.2x", dev->dev_addr[i]);
244 if (i < 5)
245 printk(":");
246 }
247 printk(" IRQ %d\n", dev->irq);
248
284 return 0; 249 return 0;
285 250
286out1: 251out1:
287 lp = dev->priv;
288 vdma_free(lp->rba_laddr);
289 kfree(lp->rba);
290 vdma_free(lp->cda_laddr);
291 kfree(lp);
292 release_region(dev->base_addr, SONIC_MEM_SIZE); 252 release_region(dev->base_addr, SONIC_MEM_SIZE);
293out: 253out:
294 free_netdev(dev); 254 free_netdev(dev);
@@ -296,21 +256,22 @@ out:
296 return err; 256 return err;
297} 257}
298 258
299/* 259MODULE_DESCRIPTION("Jazz SONIC ethernet driver");
300 * SONIC uses a normal IRQ 260module_param(sonic_debug, int, 0);
301 */ 261MODULE_PARM_DESC(sonic_debug, "jazzsonic debug level (1-4)");
302#define sonic_request_irq request_irq
303#define sonic_free_irq free_irq
304 262
305#define sonic_chiptomem(x) KSEG1ADDR(vdma_log2phys(x)) 263#define SONIC_IRQ_FLAG SA_INTERRUPT
306 264
307#include "sonic.c" 265#include "sonic.c"
308 266
309static int __devexit jazz_sonic_device_remove (struct device *device) 267static int __devexit jazz_sonic_device_remove (struct device *device)
310{ 268{
311 struct net_device *dev = device->driver_data; 269 struct net_device *dev = device->driver_data;
270 struct sonic_local* lp = netdev_priv(dev);
312 271
313 unregister_netdev (dev); 272 unregister_netdev (dev);
273 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
274 lp->descriptors, lp->descriptors_laddr);
314 release_region (dev->base_addr, SONIC_MEM_SIZE); 275 release_region (dev->base_addr, SONIC_MEM_SIZE);
315 free_netdev (dev); 276 free_netdev (dev);
316 277
@@ -323,7 +284,7 @@ static struct device_driver jazz_sonic_driver = {
323 .probe = jazz_sonic_probe, 284 .probe = jazz_sonic_probe,
324 .remove = __devexit_p(jazz_sonic_device_remove), 285 .remove = __devexit_p(jazz_sonic_device_remove),
325}; 286};
326 287
327static void jazz_sonic_platform_release (struct device *device) 288static void jazz_sonic_platform_release (struct device *device)
328{ 289{
329 struct platform_device *pldev; 290 struct platform_device *pldev;
@@ -336,10 +297,11 @@ static void jazz_sonic_platform_release (struct device *device)
336static int __init jazz_sonic_init_module(void) 297static int __init jazz_sonic_init_module(void)
337{ 298{
338 struct platform_device *pldev; 299 struct platform_device *pldev;
300 int err;
339 301
340 if (driver_register(&jazz_sonic_driver)) { 302 if ((err = driver_register(&jazz_sonic_driver))) {
341 printk(KERN_ERR "Driver registration failed\n"); 303 printk(KERN_ERR "Driver registration failed\n");
342 return -ENOMEM; 304 return err;
343 } 305 }
344 306
345 jazz_sonic_device = NULL; 307 jazz_sonic_device = NULL;