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-rw-r--r--arch/arm/mach-omap2/devices.c187
1 files changed, 40 insertions, 147 deletions
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 8800486f946..9ee876fd367 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -15,6 +15,7 @@
15#include <linux/io.h> 15#include <linux/io.h>
16#include <linux/clk.h> 16#include <linux/clk.h>
17#include <linux/err.h> 17#include <linux/err.h>
18#include <linux/slab.h>
18 19
19#include <mach/hardware.h> 20#include <mach/hardware.h>
20#include <mach/irqs.h> 21#include <mach/irqs.h>
@@ -320,163 +321,55 @@ static inline void omap_init_audio(void) {}
320 321
321#include <plat/mcspi.h> 322#include <plat/mcspi.h>
322 323
323#define OMAP2_MCSPI1_BASE 0x48098000 324struct omap_device_pm_latency omap_mcspi_latency[] = {
324#define OMAP2_MCSPI2_BASE 0x4809a000 325 [0] = {
325#define OMAP2_MCSPI3_BASE 0x480b8000 326 .deactivate_func = omap_device_idle_hwmods,
326#define OMAP2_MCSPI4_BASE 0x480ba000 327 .activate_func = omap_device_enable_hwmods,
327 328 .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
328#define OMAP4_MCSPI1_BASE 0x48098100
329#define OMAP4_MCSPI2_BASE 0x4809a100
330#define OMAP4_MCSPI3_BASE 0x480b8100
331#define OMAP4_MCSPI4_BASE 0x480ba100
332
333static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
334 .num_cs = 4,
335};
336
337static struct resource omap2_mcspi1_resources[] = {
338 {
339 .start = OMAP2_MCSPI1_BASE,
340 .end = OMAP2_MCSPI1_BASE + 0xff,
341 .flags = IORESOURCE_MEM,
342 },
343};
344
345static struct platform_device omap2_mcspi1 = {
346 .name = "omap2_mcspi",
347 .id = 1,
348 .num_resources = ARRAY_SIZE(omap2_mcspi1_resources),
349 .resource = omap2_mcspi1_resources,
350 .dev = {
351 .platform_data = &omap2_mcspi1_config,
352 },
353};
354
355static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
356 .num_cs = 2,
357};
358
359static struct resource omap2_mcspi2_resources[] = {
360 {
361 .start = OMAP2_MCSPI2_BASE,
362 .end = OMAP2_MCSPI2_BASE + 0xff,
363 .flags = IORESOURCE_MEM,
364 },
365};
366
367static struct platform_device omap2_mcspi2 = {
368 .name = "omap2_mcspi",
369 .id = 2,
370 .num_resources = ARRAY_SIZE(omap2_mcspi2_resources),
371 .resource = omap2_mcspi2_resources,
372 .dev = {
373 .platform_data = &omap2_mcspi2_config,
374 },
375};
376
377#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
378 defined(CONFIG_ARCH_OMAP4)
379static struct omap2_mcspi_platform_config omap2_mcspi3_config = {
380 .num_cs = 2,
381};
382
383static struct resource omap2_mcspi3_resources[] = {
384 {
385 .start = OMAP2_MCSPI3_BASE,
386 .end = OMAP2_MCSPI3_BASE + 0xff,
387 .flags = IORESOURCE_MEM,
388 },
389};
390
391static struct platform_device omap2_mcspi3 = {
392 .name = "omap2_mcspi",
393 .id = 3,
394 .num_resources = ARRAY_SIZE(omap2_mcspi3_resources),
395 .resource = omap2_mcspi3_resources,
396 .dev = {
397 .platform_data = &omap2_mcspi3_config,
398 },
399};
400#endif
401
402#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
403static struct omap2_mcspi_platform_config omap2_mcspi4_config = {
404 .num_cs = 1,
405};
406
407static struct resource omap2_mcspi4_resources[] = {
408 {
409 .start = OMAP2_MCSPI4_BASE,
410 .end = OMAP2_MCSPI4_BASE + 0xff,
411 .flags = IORESOURCE_MEM,
412 },
413};
414
415static struct platform_device omap2_mcspi4 = {
416 .name = "omap2_mcspi",
417 .id = 4,
418 .num_resources = ARRAY_SIZE(omap2_mcspi4_resources),
419 .resource = omap2_mcspi4_resources,
420 .dev = {
421 .platform_data = &omap2_mcspi4_config,
422 }, 329 },
423}; 330};
424#endif
425 331
426#ifdef CONFIG_ARCH_OMAP4 332static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
427static inline void omap4_mcspi_fixup(void)
428{ 333{
429 omap2_mcspi1_resources[0].start = OMAP4_MCSPI1_BASE; 334 struct omap_device *od;
430 omap2_mcspi1_resources[0].end = OMAP4_MCSPI1_BASE + 0xff; 335 char *name = "omap2_mcspi";
431 omap2_mcspi2_resources[0].start = OMAP4_MCSPI2_BASE; 336 struct omap2_mcspi_platform_config *pdata;
432 omap2_mcspi2_resources[0].end = OMAP4_MCSPI2_BASE + 0xff; 337 static int spi_num;
433 omap2_mcspi3_resources[0].start = OMAP4_MCSPI3_BASE; 338 struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
434 omap2_mcspi3_resources[0].end = OMAP4_MCSPI3_BASE + 0xff; 339
435 omap2_mcspi4_resources[0].start = OMAP4_MCSPI4_BASE; 340 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
436 omap2_mcspi4_resources[0].end = OMAP4_MCSPI4_BASE + 0xff; 341 if (!pdata) {
437} 342 pr_err("Memory allocation for McSPI device failed\n");
438#else 343 return -ENOMEM;
439static inline void omap4_mcspi_fixup(void) 344 }
440{
441}
442#endif
443 345
444#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \ 346 pdata->num_cs = mcspi_attrib->num_chipselect;
445 defined(CONFIG_ARCH_OMAP4) 347 switch (oh->class->rev) {
446static inline void omap2_mcspi3_init(void) 348 case OMAP2_MCSPI_REV:
447{ 349 case OMAP3_MCSPI_REV:
448 platform_device_register(&omap2_mcspi3); 350 pdata->regs_offset = 0;
449} 351 break;
450#else 352 case OMAP4_MCSPI_REV:
451static inline void omap2_mcspi3_init(void) 353 pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
452{ 354 break;
453} 355 default:
454#endif 356 pr_err("Invalid McSPI Revision value\n");
357 return -EINVAL;
358 }
455 359
456#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) 360 spi_num++;
457static inline void omap2_mcspi4_init(void) 361 od = omap_device_build(name, spi_num, oh, pdata,
458{ 362 sizeof(*pdata), omap_mcspi_latency,
459 platform_device_register(&omap2_mcspi4); 363 ARRAY_SIZE(omap_mcspi_latency), 0);
460} 364 WARN(IS_ERR(od), "Cant build omap_device for %s:%s\n",
461#else 365 name, oh->name);
462static inline void omap2_mcspi4_init(void) 366 kfree(pdata);
463{ 367 return 0;
464} 368}
465#endif
466 369
467static void omap_init_mcspi(void) 370static void omap_init_mcspi(void)
468{ 371{
469 if (cpu_is_omap44xx()) 372 omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
470 omap4_mcspi_fixup();
471
472 platform_device_register(&omap2_mcspi1);
473 platform_device_register(&omap2_mcspi2);
474
475 if (cpu_is_omap2430() || cpu_is_omap343x() || cpu_is_omap44xx())
476 omap2_mcspi3_init();
477
478 if (cpu_is_omap343x() || cpu_is_omap44xx())
479 omap2_mcspi4_init();
480} 373}
481 374
482#else 375#else
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-20 08:43:34 -0400