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path: root/drivers/pcmcia/at91_cf.c
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Diffstat (limited to 'drivers/pcmcia/at91_cf.c')
-rw-r--r--drivers/pcmcia/at91_cf.c51
1 files changed, 31 insertions, 20 deletions
diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index 67cc5f7d0c90..a4d50940ebeb 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -28,8 +28,6 @@
28#include <asm/arch/gpio.h> 28#include <asm/arch/gpio.h>
29 29
30 30
31#define CF_SIZE 0x30000000 /* CS5+CS6: unavailable */
32
33/* 31/*
34 * A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW; 32 * 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 33 * some other bit in {A24,A22..A11} is nREG to flag memory access
@@ -76,7 +74,8 @@ static irqreturn_t at91_cf_irq(int irq, void *_cf, struct pt_regs *r)
76 /* kick pccard as needed */ 74 /* kick pccard as needed */
77 if (present != cf->present) { 75 if (present != cf->present) {
78 cf->present = present; 76 cf->present = present;
79 pr_debug("%s: card %s\n", driver_name, present ? "present" : "gone"); 77 pr_debug("%s: card %s\n", driver_name,
78 present ? "present" : "gone");
80 pcmcia_parse_events(&cf->socket, SS_DETECT); 79 pcmcia_parse_events(&cf->socket, SS_DETECT);
81 } 80 }
82 } 81 }
@@ -93,7 +92,7 @@ static int at91_cf_get_status(struct pcmcia_socket *s, u_int *sp)
93 92
94 cf = container_of(s, struct at91_cf_socket, socket); 93 cf = container_of(s, struct at91_cf_socket, socket);
95 94
96 /* NOTE: we assume 3VCARD, not XVCARD... */ 95 /* NOTE: CF is always 3VCARD */
97 if (at91_cf_present(cf)) { 96 if (at91_cf_present(cf)) {
98 int rdy = cf->board->irq_pin; /* RDY/nIRQ */ 97 int rdy = cf->board->irq_pin; /* RDY/nIRQ */
99 int vcc = cf->board->vcc_pin; 98 int vcc = cf->board->vcc_pin;
@@ -109,7 +108,8 @@ static int at91_cf_get_status(struct pcmcia_socket *s, u_int *sp)
109 return 0; 108 return 0;
110} 109}
111 110
112static int at91_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s) 111static int
112at91_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
113{ 113{
114 struct at91_cf_socket *cf; 114 struct at91_cf_socket *cf;
115 115
@@ -184,7 +184,8 @@ static int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
184} 184}
185 185
186/* pcmcia layer maps/unmaps mem regions */ 186/* pcmcia layer maps/unmaps mem regions */
187static int at91_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map) 187static int
188at91_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map)
188{ 189{
189 struct at91_cf_socket *cf; 190 struct at91_cf_socket *cf;
190 191
@@ -218,12 +219,17 @@ static int __init at91_cf_probe(struct device *dev)
218 struct at91_cf_socket *cf; 219 struct at91_cf_socket *cf;
219 struct at91_cf_data *board = dev->platform_data; 220 struct at91_cf_data *board = dev->platform_data;
220 struct platform_device *pdev = to_platform_device(dev); 221 struct platform_device *pdev = to_platform_device(dev);
222 struct resource *io;
221 unsigned int csa; 223 unsigned int csa;
222 int status; 224 int status;
223 225
224 if (!board || !board->det_pin || !board->rst_pin) 226 if (!board || !board->det_pin || !board->rst_pin)
225 return -ENODEV; 227 return -ENODEV;
226 228
229 io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
230 if (!io)
231 return -ENODEV;
232
227 cf = kcalloc(1, sizeof *cf, GFP_KERNEL); 233 cf = kcalloc(1, sizeof *cf, GFP_KERNEL);
228 if (!cf) 234 if (!cf)
229 return -ENOMEM; 235 return -ENOMEM;
@@ -250,10 +256,14 @@ static int __init at91_cf_probe(struct device *dev)
250 * REVISIT: these timings are in terms of MCK cycles, so 256 * REVISIT: these timings are in terms of MCK cycles, so
251 * when MCK changes (cpufreq etc) so must these values... 257 * when MCK changes (cpufreq etc) so must these values...
252 */ 258 */
253 at91_sys_write(AT91_SMC_CSR(4), AT91_SMC_ACSS_STD | AT91_SMC_DBW_16 | AT91_SMC_BAT | AT91_SMC_WSEN 259 at91_sys_write(AT91_SMC_CSR(4),
254 | AT91_SMC_NWS_(32) /* wait states */ 260 AT91_SMC_ACSS_STD
255 | AT91_SMC_RWSETUP_(6) /* setup time */ 261 | AT91_SMC_DBW_16
256 | AT91_SMC_RWHOLD_(4) /* hold time */ 262 | AT91_SMC_BAT
263 | AT91_SMC_WSEN
264 | AT91_SMC_NWS_(32) /* wait states */
265 | AT91_SMC_RWSETUP_(6) /* setup time */
266 | AT91_SMC_RWHOLD_(4) /* hold time */
257 ); 267 );
258 268
259 /* must be a GPIO; ergo must trigger on both edges */ 269 /* must be a GPIO; ergo must trigger on both edges */
@@ -274,8 +284,7 @@ static int __init at91_cf_probe(struct device *dev)
274 if (status < 0) 284 if (status < 0)
275 goto fail0a; 285 goto fail0a;
276 cf->socket.pci_irq = board->irq_pin; 286 cf->socket.pci_irq = board->irq_pin;
277 } 287 } else
278 else
279 cf->socket.pci_irq = NR_IRQS + 1; 288 cf->socket.pci_irq = NR_IRQS + 1;
280 289
281 /* pcmcia layer only remaps "real" memory not iospace */ 290 /* pcmcia layer only remaps "real" memory not iospace */
@@ -284,7 +293,8 @@ static int __init at91_cf_probe(struct device *dev)
284 goto fail1; 293 goto fail1;
285 294
286 /* reserve CS4, CS5, and CS6 regions; but use just CS4 */ 295 /* reserve CS4, CS5, and CS6 regions; but use just CS4 */
287 if (!request_mem_region(AT91_CF_BASE, CF_SIZE, driver_name)) 296 if (!request_mem_region(io->start, io->end + 1 - io->start,
297 driver_name))
288 goto fail1; 298 goto fail1;
289 299
290 pr_info("%s: irqs det #%d, io #%d\n", driver_name, 300 pr_info("%s: irqs det #%d, io #%d\n", driver_name,
@@ -297,7 +307,7 @@ static int __init at91_cf_probe(struct device *dev)
297 cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP 307 cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
298 | SS_CAP_MEM_ALIGN; 308 | SS_CAP_MEM_ALIGN;
299 cf->socket.map_size = SZ_2K; 309 cf->socket.map_size = SZ_2K;
300 cf->socket.io[0].NumPorts = SZ_2K; 310 cf->socket.io[0].res = io;
301 311
302 status = pcmcia_register_socket(&cf->socket); 312 status = pcmcia_register_socket(&cf->socket);
303 if (status < 0) 313 if (status < 0)
@@ -307,7 +317,7 @@ static int __init at91_cf_probe(struct device *dev)
307 317
308fail2: 318fail2:
309 iounmap((void __iomem *) cf->socket.io_offset); 319 iounmap((void __iomem *) cf->socket.io_offset);
310 release_mem_region(AT91_CF_BASE, CF_SIZE); 320 release_mem_region(io->start, io->end + 1 - io->start);
311fail1: 321fail1:
312 if (board->irq_pin) 322 if (board->irq_pin)
313 free_irq(board->irq_pin, cf); 323 free_irq(board->irq_pin, cf);
@@ -321,14 +331,15 @@ fail0:
321 331
322static int __exit at91_cf_remove(struct device *dev) 332static int __exit at91_cf_remove(struct device *dev)
323{ 333{
324 struct at91_cf_socket *cf = dev_get_drvdata(dev); 334 struct at91_cf_socket *cf = dev_get_drvdata(dev);
325 unsigned int csa; 335 struct resource *io = cf->socket.io[0].res;
336 unsigned int csa;
326 337
327 pcmcia_unregister_socket(&cf->socket); 338 pcmcia_unregister_socket(&cf->socket);
328 free_irq(cf->board->irq_pin, cf); 339 free_irq(cf->board->irq_pin, cf);
329 free_irq(cf->board->det_pin, cf); 340 free_irq(cf->board->det_pin, cf);
330 iounmap((void __iomem *) cf->socket.io_offset); 341 iounmap((void __iomem *) cf->socket.io_offset);
331 release_mem_region(AT91_CF_BASE, CF_SIZE); 342 release_mem_region(io->start, io->end + 1 - io->start);
332 343
333 csa = at91_sys_read(AT91_EBI_CSA); 344 csa = at91_sys_read(AT91_EBI_CSA);
334 at91_sys_write(AT91_EBI_CSA, csa & ~AT91_EBI_CS4A); 345 at91_sys_write(AT91_EBI_CSA, csa & ~AT91_EBI_CS4A);
@@ -342,8 +353,8 @@ static struct device_driver at91_cf_driver = {
342 .bus = &platform_bus_type, 353 .bus = &platform_bus_type,
343 .probe = at91_cf_probe, 354 .probe = at91_cf_probe,
344 .remove = __exit_p(at91_cf_remove), 355 .remove = __exit_p(at91_cf_remove),
345 .suspend = pcmcia_socket_dev_suspend, 356 .suspend = pcmcia_socket_dev_suspend,
346 .resume = pcmcia_socket_dev_resume, 357 .resume = pcmcia_socket_dev_resume,
347}; 358};
348 359
349/*--------------------------------------------------------------------------*/ 360/*--------------------------------------------------------------------------*/