MIPS: Yosemite, Emma: Fix off-by-two in arcs_cmdline buffer size check
[linux-2.6/linux-mips.git] / arch / arm / mach-shmobile / setup-sh73a0.c
blobe46821c0a62ef6a08aa06d6a390a9db884276861
1 /*
2 * sh73a0 processor support
4 * Copyright (C) 2010 Takashi Yoshii
5 * Copyright (C) 2010 Magnus Damm
6 * Copyright (C) 2008 Yoshihiro Shimoda
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/irq.h>
25 #include <linux/platform_device.h>
26 #include <linux/delay.h>
27 #include <linux/input.h>
28 #include <linux/io.h>
29 #include <linux/serial_sci.h>
30 #include <linux/sh_dma.h>
31 #include <linux/sh_intc.h>
32 #include <linux/sh_timer.h>
33 #include <mach/hardware.h>
34 #include <mach/sh73a0.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
38 static struct plat_sci_port scif0_platform_data = {
39 .mapbase = 0xe6c40000,
40 .flags = UPF_BOOT_AUTOCONF,
41 .scscr = SCSCR_RE | SCSCR_TE,
42 .scbrr_algo_id = SCBRR_ALGO_4,
43 .type = PORT_SCIFA,
44 .irqs = { gic_spi(72), gic_spi(72),
45 gic_spi(72), gic_spi(72) },
48 static struct platform_device scif0_device = {
49 .name = "sh-sci",
50 .id = 0,
51 .dev = {
52 .platform_data = &scif0_platform_data,
56 static struct plat_sci_port scif1_platform_data = {
57 .mapbase = 0xe6c50000,
58 .flags = UPF_BOOT_AUTOCONF,
59 .scscr = SCSCR_RE | SCSCR_TE,
60 .scbrr_algo_id = SCBRR_ALGO_4,
61 .type = PORT_SCIFA,
62 .irqs = { gic_spi(73), gic_spi(73),
63 gic_spi(73), gic_spi(73) },
66 static struct platform_device scif1_device = {
67 .name = "sh-sci",
68 .id = 1,
69 .dev = {
70 .platform_data = &scif1_platform_data,
74 static struct plat_sci_port scif2_platform_data = {
75 .mapbase = 0xe6c60000,
76 .flags = UPF_BOOT_AUTOCONF,
77 .scscr = SCSCR_RE | SCSCR_TE,
78 .scbrr_algo_id = SCBRR_ALGO_4,
79 .type = PORT_SCIFA,
80 .irqs = { gic_spi(74), gic_spi(74),
81 gic_spi(74), gic_spi(74) },
84 static struct platform_device scif2_device = {
85 .name = "sh-sci",
86 .id = 2,
87 .dev = {
88 .platform_data = &scif2_platform_data,
92 static struct plat_sci_port scif3_platform_data = {
93 .mapbase = 0xe6c70000,
94 .flags = UPF_BOOT_AUTOCONF,
95 .scscr = SCSCR_RE | SCSCR_TE,
96 .scbrr_algo_id = SCBRR_ALGO_4,
97 .type = PORT_SCIFA,
98 .irqs = { gic_spi(75), gic_spi(75),
99 gic_spi(75), gic_spi(75) },
102 static struct platform_device scif3_device = {
103 .name = "sh-sci",
104 .id = 3,
105 .dev = {
106 .platform_data = &scif3_platform_data,
110 static struct plat_sci_port scif4_platform_data = {
111 .mapbase = 0xe6c80000,
112 .flags = UPF_BOOT_AUTOCONF,
113 .scscr = SCSCR_RE | SCSCR_TE,
114 .scbrr_algo_id = SCBRR_ALGO_4,
115 .type = PORT_SCIFA,
116 .irqs = { gic_spi(78), gic_spi(78),
117 gic_spi(78), gic_spi(78) },
120 static struct platform_device scif4_device = {
121 .name = "sh-sci",
122 .id = 4,
123 .dev = {
124 .platform_data = &scif4_platform_data,
128 static struct plat_sci_port scif5_platform_data = {
129 .mapbase = 0xe6cb0000,
130 .flags = UPF_BOOT_AUTOCONF,
131 .scscr = SCSCR_RE | SCSCR_TE,
132 .scbrr_algo_id = SCBRR_ALGO_4,
133 .type = PORT_SCIFA,
134 .irqs = { gic_spi(79), gic_spi(79),
135 gic_spi(79), gic_spi(79) },
138 static struct platform_device scif5_device = {
139 .name = "sh-sci",
140 .id = 5,
141 .dev = {
142 .platform_data = &scif5_platform_data,
146 static struct plat_sci_port scif6_platform_data = {
147 .mapbase = 0xe6cc0000,
148 .flags = UPF_BOOT_AUTOCONF,
149 .scscr = SCSCR_RE | SCSCR_TE,
150 .scbrr_algo_id = SCBRR_ALGO_4,
151 .type = PORT_SCIFA,
152 .irqs = { gic_spi(156), gic_spi(156),
153 gic_spi(156), gic_spi(156) },
156 static struct platform_device scif6_device = {
157 .name = "sh-sci",
158 .id = 6,
159 .dev = {
160 .platform_data = &scif6_platform_data,
164 static struct plat_sci_port scif7_platform_data = {
165 .mapbase = 0xe6cd0000,
166 .flags = UPF_BOOT_AUTOCONF,
167 .scscr = SCSCR_RE | SCSCR_TE,
168 .scbrr_algo_id = SCBRR_ALGO_4,
169 .type = PORT_SCIFA,
170 .irqs = { gic_spi(143), gic_spi(143),
171 gic_spi(143), gic_spi(143) },
174 static struct platform_device scif7_device = {
175 .name = "sh-sci",
176 .id = 7,
177 .dev = {
178 .platform_data = &scif7_platform_data,
182 static struct plat_sci_port scif8_platform_data = {
183 .mapbase = 0xe6c30000,
184 .flags = UPF_BOOT_AUTOCONF,
185 .scscr = SCSCR_RE | SCSCR_TE,
186 .scbrr_algo_id = SCBRR_ALGO_4,
187 .type = PORT_SCIFB,
188 .irqs = { gic_spi(80), gic_spi(80),
189 gic_spi(80), gic_spi(80) },
192 static struct platform_device scif8_device = {
193 .name = "sh-sci",
194 .id = 8,
195 .dev = {
196 .platform_data = &scif8_platform_data,
200 static struct sh_timer_config cmt10_platform_data = {
201 .name = "CMT10",
202 .channel_offset = 0x10,
203 .timer_bit = 0,
204 .clockevent_rating = 125,
205 .clocksource_rating = 125,
208 static struct resource cmt10_resources[] = {
209 [0] = {
210 .name = "CMT10",
211 .start = 0xe6138010,
212 .end = 0xe613801b,
213 .flags = IORESOURCE_MEM,
215 [1] = {
216 .start = gic_spi(65),
217 .flags = IORESOURCE_IRQ,
221 static struct platform_device cmt10_device = {
222 .name = "sh_cmt",
223 .id = 10,
224 .dev = {
225 .platform_data = &cmt10_platform_data,
227 .resource = cmt10_resources,
228 .num_resources = ARRAY_SIZE(cmt10_resources),
231 /* TMU */
232 static struct sh_timer_config tmu00_platform_data = {
233 .name = "TMU00",
234 .channel_offset = 0x4,
235 .timer_bit = 0,
236 .clockevent_rating = 200,
239 static struct resource tmu00_resources[] = {
240 [0] = {
241 .name = "TMU00",
242 .start = 0xfff60008,
243 .end = 0xfff60013,
244 .flags = IORESOURCE_MEM,
246 [1] = {
247 .start = intcs_evt2irq(0x0e80), /* TMU0_TUNI00 */
248 .flags = IORESOURCE_IRQ,
252 static struct platform_device tmu00_device = {
253 .name = "sh_tmu",
254 .id = 0,
255 .dev = {
256 .platform_data = &tmu00_platform_data,
258 .resource = tmu00_resources,
259 .num_resources = ARRAY_SIZE(tmu00_resources),
262 static struct sh_timer_config tmu01_platform_data = {
263 .name = "TMU01",
264 .channel_offset = 0x10,
265 .timer_bit = 1,
266 .clocksource_rating = 200,
269 static struct resource tmu01_resources[] = {
270 [0] = {
271 .name = "TMU01",
272 .start = 0xfff60014,
273 .end = 0xfff6001f,
274 .flags = IORESOURCE_MEM,
276 [1] = {
277 .start = intcs_evt2irq(0x0ea0), /* TMU0_TUNI01 */
278 .flags = IORESOURCE_IRQ,
282 static struct platform_device tmu01_device = {
283 .name = "sh_tmu",
284 .id = 1,
285 .dev = {
286 .platform_data = &tmu01_platform_data,
288 .resource = tmu01_resources,
289 .num_resources = ARRAY_SIZE(tmu01_resources),
292 static struct resource i2c0_resources[] = {
293 [0] = {
294 .name = "IIC0",
295 .start = 0xe6820000,
296 .end = 0xe6820425 - 1,
297 .flags = IORESOURCE_MEM,
299 [1] = {
300 .start = gic_spi(167),
301 .end = gic_spi(170),
302 .flags = IORESOURCE_IRQ,
306 static struct resource i2c1_resources[] = {
307 [0] = {
308 .name = "IIC1",
309 .start = 0xe6822000,
310 .end = 0xe6822425 - 1,
311 .flags = IORESOURCE_MEM,
313 [1] = {
314 .start = gic_spi(51),
315 .end = gic_spi(54),
316 .flags = IORESOURCE_IRQ,
320 static struct resource i2c2_resources[] = {
321 [0] = {
322 .name = "IIC2",
323 .start = 0xe6824000,
324 .end = 0xe6824425 - 1,
325 .flags = IORESOURCE_MEM,
327 [1] = {
328 .start = gic_spi(171),
329 .end = gic_spi(174),
330 .flags = IORESOURCE_IRQ,
334 static struct resource i2c3_resources[] = {
335 [0] = {
336 .name = "IIC3",
337 .start = 0xe6826000,
338 .end = 0xe6826425 - 1,
339 .flags = IORESOURCE_MEM,
341 [1] = {
342 .start = gic_spi(183),
343 .end = gic_spi(186),
344 .flags = IORESOURCE_IRQ,
348 static struct resource i2c4_resources[] = {
349 [0] = {
350 .name = "IIC4",
351 .start = 0xe6828000,
352 .end = 0xe6828425 - 1,
353 .flags = IORESOURCE_MEM,
355 [1] = {
356 .start = gic_spi(187),
357 .end = gic_spi(190),
358 .flags = IORESOURCE_IRQ,
362 static struct platform_device i2c0_device = {
363 .name = "i2c-sh_mobile",
364 .id = 0,
365 .resource = i2c0_resources,
366 .num_resources = ARRAY_SIZE(i2c0_resources),
369 static struct platform_device i2c1_device = {
370 .name = "i2c-sh_mobile",
371 .id = 1,
372 .resource = i2c1_resources,
373 .num_resources = ARRAY_SIZE(i2c1_resources),
376 static struct platform_device i2c2_device = {
377 .name = "i2c-sh_mobile",
378 .id = 2,
379 .resource = i2c2_resources,
380 .num_resources = ARRAY_SIZE(i2c2_resources),
383 static struct platform_device i2c3_device = {
384 .name = "i2c-sh_mobile",
385 .id = 3,
386 .resource = i2c3_resources,
387 .num_resources = ARRAY_SIZE(i2c3_resources),
390 static struct platform_device i2c4_device = {
391 .name = "i2c-sh_mobile",
392 .id = 4,
393 .resource = i2c4_resources,
394 .num_resources = ARRAY_SIZE(i2c4_resources),
397 /* Transmit sizes and respective CHCR register values */
398 enum {
399 XMIT_SZ_8BIT = 0,
400 XMIT_SZ_16BIT = 1,
401 XMIT_SZ_32BIT = 2,
402 XMIT_SZ_64BIT = 7,
403 XMIT_SZ_128BIT = 3,
404 XMIT_SZ_256BIT = 4,
405 XMIT_SZ_512BIT = 5,
408 /* log2(size / 8) - used to calculate number of transfers */
409 #define TS_SHIFT { \
410 [XMIT_SZ_8BIT] = 0, \
411 [XMIT_SZ_16BIT] = 1, \
412 [XMIT_SZ_32BIT] = 2, \
413 [XMIT_SZ_64BIT] = 3, \
414 [XMIT_SZ_128BIT] = 4, \
415 [XMIT_SZ_256BIT] = 5, \
416 [XMIT_SZ_512BIT] = 6, \
419 #define TS_INDEX2VAL(i) ((((i) & 3) << 3) | (((i) & 0xc) << (20 - 2)))
420 #define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL((xmit_sz)))
421 #define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL((xmit_sz)))
423 static const struct sh_dmae_slave_config sh73a0_dmae_slaves[] = {
425 .slave_id = SHDMA_SLAVE_SCIF0_TX,
426 .addr = 0xe6c40020,
427 .chcr = CHCR_TX(XMIT_SZ_8BIT),
428 .mid_rid = 0x21,
429 }, {
430 .slave_id = SHDMA_SLAVE_SCIF0_RX,
431 .addr = 0xe6c40024,
432 .chcr = CHCR_RX(XMIT_SZ_8BIT),
433 .mid_rid = 0x22,
434 }, {
435 .slave_id = SHDMA_SLAVE_SCIF1_TX,
436 .addr = 0xe6c50020,
437 .chcr = CHCR_TX(XMIT_SZ_8BIT),
438 .mid_rid = 0x25,
439 }, {
440 .slave_id = SHDMA_SLAVE_SCIF1_RX,
441 .addr = 0xe6c50024,
442 .chcr = CHCR_RX(XMIT_SZ_8BIT),
443 .mid_rid = 0x26,
444 }, {
445 .slave_id = SHDMA_SLAVE_SCIF2_TX,
446 .addr = 0xe6c60020,
447 .chcr = CHCR_TX(XMIT_SZ_8BIT),
448 .mid_rid = 0x29,
449 }, {
450 .slave_id = SHDMA_SLAVE_SCIF2_RX,
451 .addr = 0xe6c60024,
452 .chcr = CHCR_RX(XMIT_SZ_8BIT),
453 .mid_rid = 0x2a,
454 }, {
455 .slave_id = SHDMA_SLAVE_SCIF3_TX,
456 .addr = 0xe6c70020,
457 .chcr = CHCR_TX(XMIT_SZ_8BIT),
458 .mid_rid = 0x2d,
459 }, {
460 .slave_id = SHDMA_SLAVE_SCIF3_RX,
461 .addr = 0xe6c70024,
462 .chcr = CHCR_RX(XMIT_SZ_8BIT),
463 .mid_rid = 0x2e,
464 }, {
465 .slave_id = SHDMA_SLAVE_SCIF4_TX,
466 .addr = 0xe6c80020,
467 .chcr = CHCR_TX(XMIT_SZ_8BIT),
468 .mid_rid = 0x39,
469 }, {
470 .slave_id = SHDMA_SLAVE_SCIF4_RX,
471 .addr = 0xe6c80024,
472 .chcr = CHCR_RX(XMIT_SZ_8BIT),
473 .mid_rid = 0x3a,
474 }, {
475 .slave_id = SHDMA_SLAVE_SCIF5_TX,
476 .addr = 0xe6cb0020,
477 .chcr = CHCR_TX(XMIT_SZ_8BIT),
478 .mid_rid = 0x35,
479 }, {
480 .slave_id = SHDMA_SLAVE_SCIF5_RX,
481 .addr = 0xe6cb0024,
482 .chcr = CHCR_RX(XMIT_SZ_8BIT),
483 .mid_rid = 0x36,
484 }, {
485 .slave_id = SHDMA_SLAVE_SCIF6_TX,
486 .addr = 0xe6cc0020,
487 .chcr = CHCR_TX(XMIT_SZ_8BIT),
488 .mid_rid = 0x1d,
489 }, {
490 .slave_id = SHDMA_SLAVE_SCIF6_RX,
491 .addr = 0xe6cc0024,
492 .chcr = CHCR_RX(XMIT_SZ_8BIT),
493 .mid_rid = 0x1e,
494 }, {
495 .slave_id = SHDMA_SLAVE_SCIF7_TX,
496 .addr = 0xe6cd0020,
497 .chcr = CHCR_TX(XMIT_SZ_8BIT),
498 .mid_rid = 0x19,
499 }, {
500 .slave_id = SHDMA_SLAVE_SCIF7_RX,
501 .addr = 0xe6cd0024,
502 .chcr = CHCR_RX(XMIT_SZ_8BIT),
503 .mid_rid = 0x1a,
504 }, {
505 .slave_id = SHDMA_SLAVE_SCIF8_TX,
506 .addr = 0xe6c30040,
507 .chcr = CHCR_TX(XMIT_SZ_8BIT),
508 .mid_rid = 0x3d,
509 }, {
510 .slave_id = SHDMA_SLAVE_SCIF8_RX,
511 .addr = 0xe6c30060,
512 .chcr = CHCR_RX(XMIT_SZ_8BIT),
513 .mid_rid = 0x3e,
514 }, {
515 .slave_id = SHDMA_SLAVE_SDHI0_TX,
516 .addr = 0xee100030,
517 .chcr = CHCR_TX(XMIT_SZ_16BIT),
518 .mid_rid = 0xc1,
519 }, {
520 .slave_id = SHDMA_SLAVE_SDHI0_RX,
521 .addr = 0xee100030,
522 .chcr = CHCR_RX(XMIT_SZ_16BIT),
523 .mid_rid = 0xc2,
524 }, {
525 .slave_id = SHDMA_SLAVE_SDHI1_TX,
526 .addr = 0xee120030,
527 .chcr = CHCR_TX(XMIT_SZ_16BIT),
528 .mid_rid = 0xc9,
529 }, {
530 .slave_id = SHDMA_SLAVE_SDHI1_RX,
531 .addr = 0xee120030,
532 .chcr = CHCR_RX(XMIT_SZ_16BIT),
533 .mid_rid = 0xca,
534 }, {
535 .slave_id = SHDMA_SLAVE_SDHI2_TX,
536 .addr = 0xee140030,
537 .chcr = CHCR_TX(XMIT_SZ_16BIT),
538 .mid_rid = 0xcd,
539 }, {
540 .slave_id = SHDMA_SLAVE_SDHI2_RX,
541 .addr = 0xee140030,
542 .chcr = CHCR_RX(XMIT_SZ_16BIT),
543 .mid_rid = 0xce,
544 }, {
545 .slave_id = SHDMA_SLAVE_MMCIF_TX,
546 .addr = 0xe6bd0034,
547 .chcr = CHCR_TX(XMIT_SZ_32BIT),
548 .mid_rid = 0xd1,
549 }, {
550 .slave_id = SHDMA_SLAVE_MMCIF_RX,
551 .addr = 0xe6bd0034,
552 .chcr = CHCR_RX(XMIT_SZ_32BIT),
553 .mid_rid = 0xd2,
557 #define DMAE_CHANNEL(_offset) \
559 .offset = _offset - 0x20, \
560 .dmars = _offset - 0x20 + 0x40, \
563 static const struct sh_dmae_channel sh73a0_dmae_channels[] = {
564 DMAE_CHANNEL(0x8000),
565 DMAE_CHANNEL(0x8080),
566 DMAE_CHANNEL(0x8100),
567 DMAE_CHANNEL(0x8180),
568 DMAE_CHANNEL(0x8200),
569 DMAE_CHANNEL(0x8280),
570 DMAE_CHANNEL(0x8300),
571 DMAE_CHANNEL(0x8380),
572 DMAE_CHANNEL(0x8400),
573 DMAE_CHANNEL(0x8480),
574 DMAE_CHANNEL(0x8500),
575 DMAE_CHANNEL(0x8580),
576 DMAE_CHANNEL(0x8600),
577 DMAE_CHANNEL(0x8680),
578 DMAE_CHANNEL(0x8700),
579 DMAE_CHANNEL(0x8780),
580 DMAE_CHANNEL(0x8800),
581 DMAE_CHANNEL(0x8880),
582 DMAE_CHANNEL(0x8900),
583 DMAE_CHANNEL(0x8980),
586 static const unsigned int ts_shift[] = TS_SHIFT;
588 static struct sh_dmae_pdata sh73a0_dmae_platform_data = {
589 .slave = sh73a0_dmae_slaves,
590 .slave_num = ARRAY_SIZE(sh73a0_dmae_slaves),
591 .channel = sh73a0_dmae_channels,
592 .channel_num = ARRAY_SIZE(sh73a0_dmae_channels),
593 .ts_low_shift = 3,
594 .ts_low_mask = 0x18,
595 .ts_high_shift = (20 - 2), /* 2 bits for shifted low TS */
596 .ts_high_mask = 0x00300000,
597 .ts_shift = ts_shift,
598 .ts_shift_num = ARRAY_SIZE(ts_shift),
599 .dmaor_init = DMAOR_DME,
602 static struct resource sh73a0_dmae_resources[] = {
604 /* Registers including DMAOR and channels including DMARSx */
605 .start = 0xfe000020,
606 .end = 0xfe008a00 - 1,
607 .flags = IORESOURCE_MEM,
610 /* DMA error IRQ */
611 .start = gic_spi(129),
612 .end = gic_spi(129),
613 .flags = IORESOURCE_IRQ,
616 /* IRQ for channels 0-19 */
617 .start = gic_spi(109),
618 .end = gic_spi(128),
619 .flags = IORESOURCE_IRQ,
623 static struct platform_device dma0_device = {
624 .name = "sh-dma-engine",
625 .id = 0,
626 .resource = sh73a0_dmae_resources,
627 .num_resources = ARRAY_SIZE(sh73a0_dmae_resources),
628 .dev = {
629 .platform_data = &sh73a0_dmae_platform_data,
633 static struct platform_device *sh73a0_early_devices[] __initdata = {
634 &scif0_device,
635 &scif1_device,
636 &scif2_device,
637 &scif3_device,
638 &scif4_device,
639 &scif5_device,
640 &scif6_device,
641 &scif7_device,
642 &scif8_device,
643 &cmt10_device,
644 &tmu00_device,
645 &tmu01_device,
648 static struct platform_device *sh73a0_late_devices[] __initdata = {
649 &i2c0_device,
650 &i2c1_device,
651 &i2c2_device,
652 &i2c3_device,
653 &i2c4_device,
654 &dma0_device,
657 #define SRCR2 0xe61580b0
659 void __init sh73a0_add_standard_devices(void)
661 /* Clear software reset bit on SY-DMAC module */
662 __raw_writel(__raw_readl(SRCR2) & ~(1 << 18), SRCR2);
664 platform_add_devices(sh73a0_early_devices,
665 ARRAY_SIZE(sh73a0_early_devices));
666 platform_add_devices(sh73a0_late_devices,
667 ARRAY_SIZE(sh73a0_late_devices));
670 void __init sh73a0_add_early_devices(void)
672 early_platform_add_devices(sh73a0_early_devices,
673 ARRAY_SIZE(sh73a0_early_devices));