1 /*
2 * device.c -- common ColdFire SoC device support
3 *
4 * (C) Copyright 2011, Greg Ungerer <gerg@uclinux.org>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive
8 * for more details.
9 */
10
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/io.h>
14 #include <linux/spi/spi.h>
15 #include <linux/gpio.h>
16 #include <linux/fec.h>
17 #include <linux/dmaengine.h>
18 #include <asm/traps.h>
19 #include <asm/coldfire.h>
20 #include <asm/mcfsim.h>
21 #include <asm/mcfuart.h>
22 #include <asm/mcfqspi.h>
23 #include <linux/platform_data/edma.h>
24 #include <linux/platform_data/dma-mcf-edma.h>
25 #include <linux/platform_data/mmc-esdhc-mcf.h>
26
27 /*
28 * All current ColdFire parts contain from 2, 3, 4 or 10 UARTS.
29 */
30 static struct mcf_platform_uart mcf_uart_platform_data[] = {
31 {
32 .mapbase = MCFUART_BASE0,
33 .irq = MCF_IRQ_UART0,
34 },
35 {
36 .mapbase = MCFUART_BASE1,
37 .irq = MCF_IRQ_UART1,
38 },
39 #ifdef MCFUART_BASE2
40 {
41 .mapbase = MCFUART_BASE2,
42 .irq = MCF_IRQ_UART2,
43 },
44 #endif
45 #ifdef MCFUART_BASE3
46 {
47 .mapbase = MCFUART_BASE3,
48 .irq = MCF_IRQ_UART3,
49 },
50 #endif
51 #ifdef MCFUART_BASE4
52 {
53 .mapbase = MCFUART_BASE4,
54 .irq = MCF_IRQ_UART4,
55 },
56 #endif
57 #ifdef MCFUART_BASE5
58 {
59 .mapbase = MCFUART_BASE5,
60 .irq = MCF_IRQ_UART5,
61 },
62 #endif
63 #ifdef MCFUART_BASE6
64 {
65 .mapbase = MCFUART_BASE6,
66 .irq = MCF_IRQ_UART6,
67 },
68 #endif
69 #ifdef MCFUART_BASE7
70 {
71 .mapbase = MCFUART_BASE7,
72 .irq = MCF_IRQ_UART7,
73 },
74 #endif
75 #ifdef MCFUART_BASE8
76 {
77 .mapbase = MCFUART_BASE8,
78 .irq = MCF_IRQ_UART8,
79 },
80 #endif
81 #ifdef MCFUART_BASE9
82 {
83 .mapbase = MCFUART_BASE9,
84 .irq = MCF_IRQ_UART9,
85 },
86 #endif
87 { },
88 };
89
90 static struct platform_device mcf_uart = {
91 .name = "mcfuart",
92 .id = 0,
93 .dev.platform_data = mcf_uart_platform_data,
94 };
95
96 #if IS_ENABLED(CONFIG_FEC)
97
98 #ifdef CONFIG_M5441x
99 #define FEC_NAME "enet-fec"
100 static struct fec_platform_data fec_pdata = {
101 .phy = PHY_INTERFACE_MODE_RMII,
102 };
103 #define FEC_PDATA (&fec_pdata)
104 #else
105 #define FEC_NAME "fec"
106 #define FEC_PDATA NULL
107 #endif
108
109 /*
110 * Some ColdFire cores contain the Fast Ethernet Controller (FEC)
111 * block. It is Freescale's own hardware block. Some ColdFires
112 * have 2 of these.
113 */
114 static struct resource mcf_fec0_resources[] = {
115 {
116 .start = MCFFEC_BASE0,
117 .end = MCFFEC_BASE0 + MCFFEC_SIZE0 - 1,
118 .flags = IORESOURCE_MEM,
119 },
120 {
121 .start = MCF_IRQ_FECRX0,
122 .end = MCF_IRQ_FECRX0,
123 .flags = IORESOURCE_IRQ,
124 },
125 {
126 .start = MCF_IRQ_FECTX0,
127 .end = MCF_IRQ_FECTX0,
128 .flags = IORESOURCE_IRQ,
129 },
130 {
131 .start = MCF_IRQ_FECENTC0,
132 .end = MCF_IRQ_FECENTC0,
133 .flags = IORESOURCE_IRQ,
134 },
135 };
136
137 static struct platform_device mcf_fec0 = {
138 .name = FEC_NAME,
139 .id = 0,
140 .num_resources = ARRAY_SIZE(mcf_fec0_resources),
141 .resource = mcf_fec0_resources,
142 .dev = {
143 .dma_mask = &mcf_fec0.dev.coherent_dma_mask,
144 .coherent_dma_mask = DMA_BIT_MASK(32),
145 .platform_data = FEC_PDATA,
146 }
147 };
148
149 #ifdef MCFFEC_BASE1
150 static struct resource mcf_fec1_resources[] = {
151 {
152 .start = MCFFEC_BASE1,
153 .end = MCFFEC_BASE1 + MCFFEC_SIZE1 - 1,
154 .flags = IORESOURCE_MEM,
155 },
156 {
157 .start = MCF_IRQ_FECRX1,
158 .end = MCF_IRQ_FECRX1,
159 .flags = IORESOURCE_IRQ,
160 },
161 {
162 .start = MCF_IRQ_FECTX1,
163 .end = MCF_IRQ_FECTX1,
164 .flags = IORESOURCE_IRQ,
165 },
166 {
167 .start = MCF_IRQ_FECENTC1,
168 .end = MCF_IRQ_FECENTC1,
169 .flags = IORESOURCE_IRQ,
170 },
171 };
172
173 static struct platform_device mcf_fec1 = {
174 .name = FEC_NAME,
175 .id = 1,
176 .num_resources = ARRAY_SIZE(mcf_fec1_resources),
177 .resource = mcf_fec1_resources,
178 .dev = {
179 .dma_mask = &mcf_fec1.dev.coherent_dma_mask,
180 .coherent_dma_mask = DMA_BIT_MASK(32),
181 .platform_data = FEC_PDATA,
182 }
183 };
184 #endif /* MCFFEC_BASE1 */
185 #endif /* CONFIG_FEC */
186
187 #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
188 /*
189 * The ColdFire QSPI module is an SPI protocol hardware block used
190 * on a number of different ColdFire CPUs.
191 */
192 static struct resource mcf_qspi_resources[] = {
193 {
194 .start = MCFQSPI_BASE,
195 .end = MCFQSPI_BASE + MCFQSPI_SIZE - 1,
196 .flags = IORESOURCE_MEM,
197 },
198 {
199 .start = MCF_IRQ_QSPI,
200 .end = MCF_IRQ_QSPI,
201 .flags = IORESOURCE_IRQ,
202 },
203 };
204
205 static int mcf_cs_setup(struct mcfqspi_cs_control *cs_control)
206 {
207 int status;
208
209 status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
210 if (status) {
211 pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
212 goto fail0;
213 }
214 status = gpio_direction_output(MCFQSPI_CS0, 1);
215 if (status) {
216 pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
217 goto fail1;
218 }
219
220 status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
221 if (status) {
222 pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
223 goto fail1;
224 }
225 status = gpio_direction_output(MCFQSPI_CS1, 1);
226 if (status) {
227 pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
228 goto fail2;
229 }
230
231 status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
232 if (status) {
233 pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
234 goto fail2;
235 }
236 status = gpio_direction_output(MCFQSPI_CS2, 1);
237 if (status) {
238 pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
239 goto fail3;
240 }
241
242 #ifdef MCFQSPI_CS3
243 status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
244 if (status) {
245 pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
246 goto fail3;
247 }
248 status = gpio_direction_output(MCFQSPI_CS3, 1);
249 if (status) {
250 pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
251 gpio_free(MCFQSPI_CS3);
252 goto fail3;
253 }
254 #endif
255
256 return 0;
257
258 fail3:
259 gpio_free(MCFQSPI_CS2);
260 fail2:
261 gpio_free(MCFQSPI_CS1);
262 fail1:
263 gpio_free(MCFQSPI_CS0);
264 fail0:
265 return status;
266 }
267
268 static void mcf_cs_teardown(struct mcfqspi_cs_control *cs_control)
269 {
270 #ifdef MCFQSPI_CS3
271 gpio_free(MCFQSPI_CS3);
272 #endif
273 gpio_free(MCFQSPI_CS2);
274 gpio_free(MCFQSPI_CS1);
275 gpio_free(MCFQSPI_CS0);
276 }
277
278 static void mcf_cs_select(struct mcfqspi_cs_control *cs_control,
279 u8 chip_select, bool cs_high)
280 {
281 switch (chip_select) {
282 case 0:
283 gpio_set_value(MCFQSPI_CS0, cs_high);
284 break;
285 case 1:
286 gpio_set_value(MCFQSPI_CS1, cs_high);
287 break;
288 case 2:
289 gpio_set_value(MCFQSPI_CS2, cs_high);
290 break;
291 #ifdef MCFQSPI_CS3
292 case 3:
293 gpio_set_value(MCFQSPI_CS3, cs_high);
294 break;
295 #endif
296 }
297 }
298
299 static void mcf_cs_deselect(struct mcfqspi_cs_control *cs_control,
300 u8 chip_select, bool cs_high)
301 {
302 switch (chip_select) {
303 case 0:
304 gpio_set_value(MCFQSPI_CS0, !cs_high);
305 break;
306 case 1:
307 gpio_set_value(MCFQSPI_CS1, !cs_high);
308 break;
309 case 2:
310 gpio_set_value(MCFQSPI_CS2, !cs_high);
311 break;
312 #ifdef MCFQSPI_CS3
313 case 3:
314 gpio_set_value(MCFQSPI_CS3, !cs_high);
315 break;
316 #endif
317 }
318 }
319
320 static struct mcfqspi_cs_control mcf_cs_control = {
321 .setup = mcf_cs_setup,
322 .teardown = mcf_cs_teardown,
323 .select = mcf_cs_select,
324 .deselect = mcf_cs_deselect,
325 };
326
327 static struct mcfqspi_platform_data mcf_qspi_data = {
328 .bus_num = 0,
329 .num_chipselect = 4,
330 .cs_control = &mcf_cs_control,
331 };
332
333 static struct platform_device mcf_qspi = {
334 .name = "mcfqspi",
335 .id = 0,
336 .num_resources = ARRAY_SIZE(mcf_qspi_resources),
337 .resource = mcf_qspi_resources,
338 .dev.platform_data = &mcf_qspi_data,
339 };
340 #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
341
342 #if IS_ENABLED(CONFIG_I2C_IMX)
343 static struct resource mcf_i2c0_resources[] = {
344 {
345 .start = MCFI2C_BASE0,
346 .end = MCFI2C_BASE0 + MCFI2C_SIZE0 - 1,
347 .flags = IORESOURCE_MEM,
348 },
349 {
350 .start = MCF_IRQ_I2C0,
351 .end = MCF_IRQ_I2C0,
352 .flags = IORESOURCE_IRQ,
353 },
354 };
355
356 static struct platform_device mcf_i2c0 = {
357 .name = "imx1-i2c",
358 .id = 0,
359 .num_resources = ARRAY_SIZE(mcf_i2c0_resources),
360 .resource = mcf_i2c0_resources,
361 };
362 #ifdef MCFI2C_BASE1
363
364 static struct resource mcf_i2c1_resources[] = {
365 {
366 .start = MCFI2C_BASE1,
367 .end = MCFI2C_BASE1 + MCFI2C_SIZE1 - 1,
368 .flags = IORESOURCE_MEM,
369 },
370 {
371 .start = MCF_IRQ_I2C1,
372 .end = MCF_IRQ_I2C1,
373 .flags = IORESOURCE_IRQ,
374 },
375 };
376
377 static struct platform_device mcf_i2c1 = {
378 .name = "imx1-i2c",
379 .id = 1,
380 .num_resources = ARRAY_SIZE(mcf_i2c1_resources),
381 .resource = mcf_i2c1_resources,
382 };
383
384 #endif /* MCFI2C_BASE1 */
385
386 #ifdef MCFI2C_BASE2
387
388 static struct resource mcf_i2c2_resources[] = {
389 {
390 .start = MCFI2C_BASE2,
391 .end = MCFI2C_BASE2 + MCFI2C_SIZE2 - 1,
392 .flags = IORESOURCE_MEM,
393 },
394 {
395 .start = MCF_IRQ_I2C2,
396 .end = MCF_IRQ_I2C2,
397 .flags = IORESOURCE_IRQ,
398 },
399 };
400
401 static struct platform_device mcf_i2c2 = {
402 .name = "imx1-i2c",
403 .id = 2,
404 .num_resources = ARRAY_SIZE(mcf_i2c2_resources),
405 .resource = mcf_i2c2_resources,
406 };
407
408 #endif /* MCFI2C_BASE2 */
409
410 #ifdef MCFI2C_BASE3
411
412 static struct resource mcf_i2c3_resources[] = {
413 {
414 .start = MCFI2C_BASE3,
415 .end = MCFI2C_BASE3 + MCFI2C_SIZE3 - 1,
416 .flags = IORESOURCE_MEM,
417 },
418 {
419 .start = MCF_IRQ_I2C3,
420 .end = MCF_IRQ_I2C3,
421 .flags = IORESOURCE_IRQ,
422 },
423 };
424
425 static struct platform_device mcf_i2c3 = {
426 .name = "imx1-i2c",
427 .id = 3,
428 .num_resources = ARRAY_SIZE(mcf_i2c3_resources),
429 .resource = mcf_i2c3_resources,
430 };
431
432 #endif /* MCFI2C_BASE3 */
433
434 #ifdef MCFI2C_BASE4
435
436 static struct resource mcf_i2c4_resources[] = {
437 {
438 .start = MCFI2C_BASE4,
439 .end = MCFI2C_BASE4 + MCFI2C_SIZE4 - 1,
440 .flags = IORESOURCE_MEM,
441 },
442 {
443 .start = MCF_IRQ_I2C4,
444 .end = MCF_IRQ_I2C4,
445 .flags = IORESOURCE_IRQ,
446 },
447 };
448
449 static struct platform_device mcf_i2c4 = {
450 .name = "imx1-i2c",
451 .id = 4,
452 .num_resources = ARRAY_SIZE(mcf_i2c4_resources),
453 .resource = mcf_i2c4_resources,
454 };
455
456 #endif /* MCFI2C_BASE4 */
457
458 #ifdef MCFI2C_BASE5
459
460 static struct resource mcf_i2c5_resources[] = {
461 {
462 .start = MCFI2C_BASE5,
463 .end = MCFI2C_BASE5 + MCFI2C_SIZE5 - 1,
464 .flags = IORESOURCE_MEM,
465 },
466 {
467 .start = MCF_IRQ_I2C5,
468 .end = MCF_IRQ_I2C5,
469 .flags = IORESOURCE_IRQ,
470 },
471 };
472
473 static struct platform_device mcf_i2c5 = {
474 .name = "imx1-i2c",
475 .id = 5,
476 .num_resources = ARRAY_SIZE(mcf_i2c5_resources),
477 .resource = mcf_i2c5_resources,
478 };
479
480 #endif /* MCFI2C_BASE5 */
481 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */
482
483 #ifdef MCFEDMA_BASE
484
485 static const struct dma_slave_map mcf_edma_map[] = {
486 { "dreq0", "rx-tx", MCF_EDMA_FILTER_PARAM(0) },
487 { "dreq1", "rx-tx", MCF_EDMA_FILTER_PARAM(1) },
488 { "uart.0", "rx", MCF_EDMA_FILTER_PARAM(2) },
489 { "uart.0", "tx", MCF_EDMA_FILTER_PARAM(3) },
490 { "uart.1", "rx", MCF_EDMA_FILTER_PARAM(4) },
491 { "uart.1", "tx", MCF_EDMA_FILTER_PARAM(5) },
492 { "uart.2", "rx", MCF_EDMA_FILTER_PARAM(6) },
493 { "uart.2", "tx", MCF_EDMA_FILTER_PARAM(7) },
494 { "timer0", "rx-tx", MCF_EDMA_FILTER_PARAM(8) },
495 { "timer1", "rx-tx", MCF_EDMA_FILTER_PARAM(9) },
496 { "timer2", "rx-tx", MCF_EDMA_FILTER_PARAM(10) },
497 { "timer3", "rx-tx", MCF_EDMA_FILTER_PARAM(11) },
498 { "fsl-dspi.0", "rx", MCF_EDMA_FILTER_PARAM(12) },
499 { "fsl-dspi.0", "tx", MCF_EDMA_FILTER_PARAM(13) },
500 { "fsl-dspi.1", "rx", MCF_EDMA_FILTER_PARAM(14) },
501 { "fsl-dspi.1", "tx", MCF_EDMA_FILTER_PARAM(15) },
502 };
503
504 static struct mcf_edma_platform_data mcf_edma_data = {
505 .dma_channels = 64,
506 .slave_map = mcf_edma_map,
507 .slavecnt = ARRAY_SIZE(mcf_edma_map),
508 };
509
510 static struct resource mcf_edma_resources[] = {
511 {
512 .start = MCFEDMA_BASE,
513 .end = MCFEDMA_BASE + MCFEDMA_SIZE - 1,
514 .flags = IORESOURCE_MEM,
515 },
516 {
517 .start = MCFEDMA_IRQ_INTR0,
518 .end = MCFEDMA_IRQ_INTR0 + 15,
519 .flags = IORESOURCE_IRQ,
520 .name = "edma-tx-00-15",
521 },
522 {
523 .start = MCFEDMA_IRQ_INTR16,
524 .end = MCFEDMA_IRQ_INTR16 + 39,
525 .flags = IORESOURCE_IRQ,
526 .name = "edma-tx-16-55",
527 },
528 {
529 .start = MCFEDMA_IRQ_INTR56,
530 .end = MCFEDMA_IRQ_INTR56,
531 .flags = IORESOURCE_IRQ,
532 .name = "edma-tx-56-63",
533 },
534 {
535 .start = MCFEDMA_IRQ_ERR,
536 .end = MCFEDMA_IRQ_ERR,
537 .flags = IORESOURCE_IRQ,
538 .name = "edma-err",
539 },
540 };
541
542 static u64 mcf_edma_dmamask = DMA_BIT_MASK(32);
543
544 static struct platform_device mcf_edma = {
545 .name = "mcf-edma",
546 .id = 0,
547 .num_resources = ARRAY_SIZE(mcf_edma_resources),
548 .resource = mcf_edma_resources,
549 .dev = {
550 .dma_mask = &mcf_edma_dmamask,
551 .coherent_dma_mask = DMA_BIT_MASK(32),
552 .platform_data = &mcf_edma_data,
553 }
554 };
555 #endif /* MCFEDMA_BASE */
556
557 #ifdef MCFSDHC_BASE
558 static struct mcf_esdhc_platform_data mcf_esdhc_data = {
559 .max_bus_width = 4,
560 .cd_type = ESDHC_CD_NONE,
561 };
562
563 static struct resource mcf_esdhc_resources[] = {
564 {
565 .start = MCFSDHC_BASE,
566 .end = MCFSDHC_BASE + MCFSDHC_SIZE - 1,
567 .flags = IORESOURCE_MEM,
568 }, {
569 .start = MCF_IRQ_SDHC,
570 .end = MCF_IRQ_SDHC,
571 .flags = IORESOURCE_IRQ,
572 },
573 };
574
575 static struct platform_device mcf_esdhc = {
576 .name = "sdhci-esdhc-mcf",
577 .id = 0,
578 .num_resources = ARRAY_SIZE(mcf_esdhc_resources),
579 .resource = mcf_esdhc_resources,
580 .dev.platform_data = &mcf_esdhc_data,
581 };
582 #endif /* MCFSDHC_BASE */
583
584 #ifdef MCFFLEXCAN_SIZE
585
586 #include <linux/can/platform/flexcan.h>
587
588 static struct flexcan_platform_data mcf5441x_flexcan_info = {
589 .clk_src = 1,
590 .clock_frequency = 120000000,
591 };
592
593 static struct resource mcf5441x_flexcan0_resource[] = {
594 {
595 .start = MCFFLEXCAN_BASE0,
596 .end = MCFFLEXCAN_BASE0 + MCFFLEXCAN_SIZE,
597 .flags = IORESOURCE_MEM,
598 },
599 {
600 .start = MCF_IRQ_IFL0,
601 .end = MCF_IRQ_IFL0,
602 .flags = IORESOURCE_IRQ,
603 },
604 {
605 .start = MCF_IRQ_BOFF0,
606 .end = MCF_IRQ_BOFF0,
607 .flags = IORESOURCE_IRQ,
608 },
609 {
610 .start = MCF_IRQ_ERR0,
611 .end = MCF_IRQ_ERR0,
612 .flags = IORESOURCE_IRQ,
613 },
614 };
615
616 static struct platform_device mcf_flexcan0 = {
617 .name = "flexcan-mcf5441x",
618 .id = 0,
619 .num_resources = ARRAY_SIZE(mcf5441x_flexcan0_resource),
620 .resource = mcf5441x_flexcan0_resource,
621 .dev.platform_data = &mcf5441x_flexcan_info,
622 };
623 #endif /* MCFFLEXCAN_SIZE */
624
625 static struct platform_device *mcf_devices[] __initdata = {
626 &mcf_uart,
627 #if IS_ENABLED(CONFIG_FEC)
628 &mcf_fec0,
629 #ifdef MCFFEC_BASE1
630 &mcf_fec1,
631 #endif
632 #endif
633 #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
634 &mcf_qspi,
635 #endif
636 #if IS_ENABLED(CONFIG_I2C_IMX)
637 &mcf_i2c0,
638 #ifdef MCFI2C_BASE1
639 &mcf_i2c1,
640 #endif
641 #ifdef MCFI2C_BASE2
642 &mcf_i2c2,
643 #endif
644 #ifdef MCFI2C_BASE3
645 &mcf_i2c3,
646 #endif
647 #ifdef MCFI2C_BASE4
648 &mcf_i2c4,
649 #endif
650 #ifdef MCFI2C_BASE5
651 &mcf_i2c5,
652 #endif
653 #endif
654 #ifdef MCFEDMA_BASE
655 &mcf_edma,
656 #endif
657 #ifdef MCFSDHC_BASE
658 &mcf_esdhc,
659 #endif
660 #ifdef MCFFLEXCAN_SIZE
661 &mcf_flexcan0,
662 #endif
663 };
664
665 /*
666 * Some ColdFire UARTs let you set the IRQ line to use.
667 */
668 static void __init mcf_uart_set_irq(void)
669 {
670 #ifdef MCFUART_UIVR
671 /* UART0 interrupt setup */
672 writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCFSIM_UART1ICR);
673 writeb(MCF_IRQ_UART0, MCFUART_BASE0 + MCFUART_UIVR);
674 mcf_mapirq2imr(MCF_IRQ_UART0, MCFINTC_UART0);
675
676 /* UART1 interrupt setup */
677 writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCFSIM_UART2ICR);
678 writeb(MCF_IRQ_UART1, MCFUART_BASE1 + MCFUART_UIVR);
679 mcf_mapirq2imr(MCF_IRQ_UART1, MCFINTC_UART1);
680 #endif
681 }
682
683 static int __init mcf_init_devices(void)
684 {
685 mcf_uart_set_irq();
686 platform_add_devices(mcf_devices, ARRAY_SIZE(mcf_devices));
687 return 0;
688 }
689
690 arch_initcall(mcf_init_devices);
691
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