Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
[deliverable/linux.git] / arch / arm / mach-s3c24xx / mach-bast.c
1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
2 *
3 * Copyright 2003-2008 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * http://www.simtec.co.uk/products/EB2410ITX/
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/list.h>
17 #include <linux/timer.h>
18 #include <linux/init.h>
19 #include <linux/gpio.h>
20 #include <linux/syscore_ops.h>
21 #include <linux/serial_core.h>
22 #include <linux/serial_s3c.h>
23 #include <linux/platform_device.h>
24 #include <linux/dm9000.h>
25 #include <linux/ata_platform.h>
26 #include <linux/i2c.h>
27 #include <linux/io.h>
28 #include <linux/serial_8250.h>
29
30 #include <linux/mtd/mtd.h>
31 #include <linux/mtd/nand.h>
32 #include <linux/mtd/nand_ecc.h>
33 #include <linux/mtd/partitions.h>
34
35 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
36 #include <linux/platform_data/hwmon-s3c.h>
37 #include <linux/platform_data/i2c-s3c2410.h>
38 #include <linux/platform_data/mtd-nand-s3c2410.h>
39
40 #include <net/ax88796.h>
41
42 #include <asm/irq.h>
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/irq.h>
46 #include <asm/mach-types.h>
47
48 #include <mach/fb.h>
49 #include <mach/hardware.h>
50 #include <mach/regs-gpio.h>
51 #include <mach/regs-lcd.h>
52 #include <mach/gpio-samsung.h>
53
54 #include <plat/clock.h>
55 #include <plat/cpu.h>
56 #include <plat/cpu-freq.h>
57 #include <plat/devs.h>
58 #include <plat/gpio-cfg.h>
59 #include <plat/samsung-time.h>
60
61 #include "bast.h"
62 #include "common.h"
63 #include "simtec.h"
64
65 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
66
67 /* macros for virtual address mods for the io space entries */
68 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
69 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
70 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
71 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
72
73 /* macros to modify the physical addresses for io space */
74
75 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
76 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
77 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
78 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
79
80 static struct map_desc bast_iodesc[] __initdata = {
81 /* ISA IO areas */
82 {
83 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
84 .pfn = PA_CS2(BAST_PA_ISAIO),
85 .length = SZ_16M,
86 .type = MT_DEVICE,
87 }, {
88 .virtual = (u32)S3C24XX_VA_ISA_WORD,
89 .pfn = PA_CS3(BAST_PA_ISAIO),
90 .length = SZ_16M,
91 .type = MT_DEVICE,
92 },
93 /* bast CPLD control registers, and external interrupt controls */
94 {
95 .virtual = (u32)BAST_VA_CTRL1,
96 .pfn = __phys_to_pfn(BAST_PA_CTRL1),
97 .length = SZ_1M,
98 .type = MT_DEVICE,
99 }, {
100 .virtual = (u32)BAST_VA_CTRL2,
101 .pfn = __phys_to_pfn(BAST_PA_CTRL2),
102 .length = SZ_1M,
103 .type = MT_DEVICE,
104 }, {
105 .virtual = (u32)BAST_VA_CTRL3,
106 .pfn = __phys_to_pfn(BAST_PA_CTRL3),
107 .length = SZ_1M,
108 .type = MT_DEVICE,
109 }, {
110 .virtual = (u32)BAST_VA_CTRL4,
111 .pfn = __phys_to_pfn(BAST_PA_CTRL4),
112 .length = SZ_1M,
113 .type = MT_DEVICE,
114 },
115 /* PC104 IRQ mux */
116 {
117 .virtual = (u32)BAST_VA_PC104_IRQREQ,
118 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
119 .length = SZ_1M,
120 .type = MT_DEVICE,
121 }, {
122 .virtual = (u32)BAST_VA_PC104_IRQRAW,
123 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
124 .length = SZ_1M,
125 .type = MT_DEVICE,
126 }, {
127 .virtual = (u32)BAST_VA_PC104_IRQMASK,
128 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
129 .length = SZ_1M,
130 .type = MT_DEVICE,
131 },
132
133 /* peripheral space... one for each of fast/slow/byte/16bit */
134 /* note, ide is only decoded in word space, even though some registers
135 * are only 8bit */
136
137 /* slow, byte */
138 { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
139 { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
140 { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
141
142 /* slow, word */
143 { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
144 { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
145 { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
146
147 /* fast, byte */
148 { VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
149 { VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
150 { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
151
152 /* fast, word */
153 { VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
154 { VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
155 { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
156 };
157
158 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
159 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
160 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
161
162 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
163 [0] = {
164 .hwport = 0,
165 .flags = 0,
166 .ucon = UCON,
167 .ulcon = ULCON,
168 .ufcon = UFCON,
169 },
170 [1] = {
171 .hwport = 1,
172 .flags = 0,
173 .ucon = UCON,
174 .ulcon = ULCON,
175 .ufcon = UFCON,
176 },
177 /* port 2 is not actually used */
178 [2] = {
179 .hwport = 2,
180 .flags = 0,
181 .ucon = UCON,
182 .ulcon = ULCON,
183 .ufcon = UFCON,
184 }
185 };
186
187 /* NAND Flash on BAST board */
188
189 #ifdef CONFIG_PM
190 static int bast_pm_suspend(void)
191 {
192 /* ensure that an nRESET is not generated on resume. */
193 gpio_direction_output(S3C2410_GPA(21), 1);
194 return 0;
195 }
196
197 static void bast_pm_resume(void)
198 {
199 s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
200 }
201
202 #else
203 #define bast_pm_suspend NULL
204 #define bast_pm_resume NULL
205 #endif
206
207 static struct syscore_ops bast_pm_syscore_ops = {
208 .suspend = bast_pm_suspend,
209 .resume = bast_pm_resume,
210 };
211
212 static int smartmedia_map[] = { 0 };
213 static int chip0_map[] = { 1 };
214 static int chip1_map[] = { 2 };
215 static int chip2_map[] = { 3 };
216
217 static struct mtd_partition __initdata bast_default_nand_part[] = {
218 [0] = {
219 .name = "Boot Agent",
220 .size = SZ_16K,
221 .offset = 0,
222 },
223 [1] = {
224 .name = "/boot",
225 .size = SZ_4M - SZ_16K,
226 .offset = SZ_16K,
227 },
228 [2] = {
229 .name = "user",
230 .offset = SZ_4M,
231 .size = MTDPART_SIZ_FULL,
232 }
233 };
234
235 /* the bast has 4 selectable slots for nand-flash, the three
236 * on-board chip areas, as well as the external SmartMedia
237 * slot.
238 *
239 * Note, there is no current hot-plug support for the SmartMedia
240 * socket.
241 */
242
243 static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
244 [0] = {
245 .name = "SmartMedia",
246 .nr_chips = 1,
247 .nr_map = smartmedia_map,
248 .options = NAND_SCAN_SILENT_NODEV,
249 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
250 .partitions = bast_default_nand_part,
251 },
252 [1] = {
253 .name = "chip0",
254 .nr_chips = 1,
255 .nr_map = chip0_map,
256 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
257 .partitions = bast_default_nand_part,
258 },
259 [2] = {
260 .name = "chip1",
261 .nr_chips = 1,
262 .nr_map = chip1_map,
263 .options = NAND_SCAN_SILENT_NODEV,
264 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
265 .partitions = bast_default_nand_part,
266 },
267 [3] = {
268 .name = "chip2",
269 .nr_chips = 1,
270 .nr_map = chip2_map,
271 .options = NAND_SCAN_SILENT_NODEV,
272 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
273 .partitions = bast_default_nand_part,
274 }
275 };
276
277 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
278 {
279 unsigned int tmp;
280
281 slot = set->nr_map[slot] & 3;
282
283 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
284 slot, set, set->nr_map);
285
286 tmp = __raw_readb(BAST_VA_CTRL2);
287 tmp &= BAST_CPLD_CTLR2_IDERST;
288 tmp |= slot;
289 tmp |= BAST_CPLD_CTRL2_WNAND;
290
291 pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
292
293 __raw_writeb(tmp, BAST_VA_CTRL2);
294 }
295
296 static struct s3c2410_platform_nand __initdata bast_nand_info = {
297 .tacls = 30,
298 .twrph0 = 60,
299 .twrph1 = 60,
300 .nr_sets = ARRAY_SIZE(bast_nand_sets),
301 .sets = bast_nand_sets,
302 .select_chip = bast_nand_select,
303 };
304
305 /* DM9000 */
306
307 static struct resource bast_dm9k_resource[] = {
308 [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000, 4),
309 [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000 + 0x40, 0x40),
310 [2] = DEFINE_RES_NAMED(BAST_IRQ_DM9000 , 1, NULL, IORESOURCE_IRQ \
311 | IORESOURCE_IRQ_HIGHLEVEL),
312 };
313
314 /* for the moment we limit ourselves to 16bit IO until some
315 * better IO routines can be written and tested
316 */
317
318 static struct dm9000_plat_data bast_dm9k_platdata = {
319 .flags = DM9000_PLATF_16BITONLY,
320 };
321
322 static struct platform_device bast_device_dm9k = {
323 .name = "dm9000",
324 .id = 0,
325 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
326 .resource = bast_dm9k_resource,
327 .dev = {
328 .platform_data = &bast_dm9k_platdata,
329 }
330 };
331
332 /* serial devices */
333
334 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
335 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
336 #define SERIAL_CLK (1843200)
337
338 static struct plat_serial8250_port bast_sio_data[] = {
339 [0] = {
340 .mapbase = SERIAL_BASE + 0x2f8,
341 .irq = BAST_IRQ_PCSERIAL1,
342 .flags = SERIAL_FLAGS,
343 .iotype = UPIO_MEM,
344 .regshift = 0,
345 .uartclk = SERIAL_CLK,
346 },
347 [1] = {
348 .mapbase = SERIAL_BASE + 0x3f8,
349 .irq = BAST_IRQ_PCSERIAL2,
350 .flags = SERIAL_FLAGS,
351 .iotype = UPIO_MEM,
352 .regshift = 0,
353 .uartclk = SERIAL_CLK,
354 },
355 { }
356 };
357
358 static struct platform_device bast_sio = {
359 .name = "serial8250",
360 .id = PLAT8250_DEV_PLATFORM,
361 .dev = {
362 .platform_data = &bast_sio_data,
363 },
364 };
365
366 /* we have devices on the bus which cannot work much over the
367 * standard 100KHz i2c bus frequency
368 */
369
370 static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
371 .flags = 0,
372 .slave_addr = 0x10,
373 .frequency = 100*1000,
374 };
375
376 /* Asix AX88796 10/100 ethernet controller */
377
378 static struct ax_plat_data bast_asix_platdata = {
379 .flags = AXFLG_MAC_FROMDEV,
380 .wordlength = 2,
381 .dcr_val = 0x48,
382 .rcr_val = 0x40,
383 };
384
385 static struct resource bast_asix_resource[] = {
386 [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET, 0x18 * 0x20),
387 [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20), 1),
388 [2] = DEFINE_RES_IRQ(BAST_IRQ_ASIX),
389 };
390
391 static struct platform_device bast_device_asix = {
392 .name = "ax88796",
393 .id = 0,
394 .num_resources = ARRAY_SIZE(bast_asix_resource),
395 .resource = bast_asix_resource,
396 .dev = {
397 .platform_data = &bast_asix_platdata
398 }
399 };
400
401 /* Asix AX88796 10/100 ethernet controller parallel port */
402
403 static struct resource bast_asixpp_resource[] = {
404 [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20), \
405 0x30 * 0x20),
406 };
407
408 static struct platform_device bast_device_axpp = {
409 .name = "ax88796-pp",
410 .id = 0,
411 .num_resources = ARRAY_SIZE(bast_asixpp_resource),
412 .resource = bast_asixpp_resource,
413 };
414
415 /* LCD/VGA controller */
416
417 static struct s3c2410fb_display __initdata bast_lcd_info[] = {
418 {
419 .type = S3C2410_LCDCON1_TFT,
420 .width = 640,
421 .height = 480,
422
423 .pixclock = 33333,
424 .xres = 640,
425 .yres = 480,
426 .bpp = 4,
427 .left_margin = 40,
428 .right_margin = 20,
429 .hsync_len = 88,
430 .upper_margin = 30,
431 .lower_margin = 32,
432 .vsync_len = 3,
433
434 .lcdcon5 = 0x00014b02,
435 },
436 {
437 .type = S3C2410_LCDCON1_TFT,
438 .width = 640,
439 .height = 480,
440
441 .pixclock = 33333,
442 .xres = 640,
443 .yres = 480,
444 .bpp = 8,
445 .left_margin = 40,
446 .right_margin = 20,
447 .hsync_len = 88,
448 .upper_margin = 30,
449 .lower_margin = 32,
450 .vsync_len = 3,
451
452 .lcdcon5 = 0x00014b02,
453 },
454 {
455 .type = S3C2410_LCDCON1_TFT,
456 .width = 640,
457 .height = 480,
458
459 .pixclock = 33333,
460 .xres = 640,
461 .yres = 480,
462 .bpp = 16,
463 .left_margin = 40,
464 .right_margin = 20,
465 .hsync_len = 88,
466 .upper_margin = 30,
467 .lower_margin = 32,
468 .vsync_len = 3,
469
470 .lcdcon5 = 0x00014b02,
471 },
472 };
473
474 /* LCD/VGA controller */
475
476 static struct s3c2410fb_mach_info __initdata bast_fb_info = {
477
478 .displays = bast_lcd_info,
479 .num_displays = ARRAY_SIZE(bast_lcd_info),
480 .default_display = 1,
481 };
482
483 /* I2C devices fitted. */
484
485 static struct i2c_board_info bast_i2c_devs[] __initdata = {
486 {
487 I2C_BOARD_INFO("tlv320aic23", 0x1a),
488 }, {
489 I2C_BOARD_INFO("simtec-pmu", 0x6b),
490 }, {
491 I2C_BOARD_INFO("ch7013", 0x75),
492 },
493 };
494
495 static struct s3c_hwmon_pdata bast_hwmon_info = {
496 /* LCD contrast (0-6.6V) */
497 .in[0] = &(struct s3c_hwmon_chcfg) {
498 .name = "lcd-contrast",
499 .mult = 3300,
500 .div = 512,
501 },
502 /* LED current feedback */
503 .in[1] = &(struct s3c_hwmon_chcfg) {
504 .name = "led-feedback",
505 .mult = 3300,
506 .div = 1024,
507 },
508 /* LCD feedback (0-6.6V) */
509 .in[2] = &(struct s3c_hwmon_chcfg) {
510 .name = "lcd-feedback",
511 .mult = 3300,
512 .div = 512,
513 },
514 /* Vcore (1.8-2.0V), Vref 3.3V */
515 .in[3] = &(struct s3c_hwmon_chcfg) {
516 .name = "vcore",
517 .mult = 3300,
518 .div = 1024,
519 },
520 };
521
522 /* Standard BAST devices */
523 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
524
525 static struct platform_device *bast_devices[] __initdata = {
526 &s3c_device_ohci,
527 &s3c_device_lcd,
528 &s3c_device_wdt,
529 &s3c_device_i2c0,
530 &s3c_device_rtc,
531 &s3c_device_nand,
532 &s3c_device_adc,
533 &s3c_device_hwmon,
534 &bast_device_dm9k,
535 &bast_device_asix,
536 &bast_device_axpp,
537 &bast_sio,
538 };
539
540 static struct clk *bast_clocks[] __initdata = {
541 &s3c24xx_dclk0,
542 &s3c24xx_dclk1,
543 &s3c24xx_clkout0,
544 &s3c24xx_clkout1,
545 &s3c24xx_uclk,
546 };
547
548 static struct s3c_cpufreq_board __initdata bast_cpufreq = {
549 .refresh = 7800, /* 7.8usec */
550 .auto_io = 1,
551 .need_io = 1,
552 };
553
554 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
555 .have_mic = 1,
556 .have_lout = 1,
557 };
558
559 static void __init bast_map_io(void)
560 {
561 /* initialise the clocks */
562
563 s3c24xx_dclk0.parent = &clk_upll;
564 s3c24xx_dclk0.rate = 12*1000*1000;
565
566 s3c24xx_dclk1.parent = &clk_upll;
567 s3c24xx_dclk1.rate = 24*1000*1000;
568
569 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
570 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
571
572 s3c24xx_uclk.parent = &s3c24xx_clkout1;
573
574 s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks));
575
576 s3c_hwmon_set_platdata(&bast_hwmon_info);
577
578 s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
579 s3c24xx_init_clocks(0);
580 s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
581 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
582 }
583
584 static void __init bast_init(void)
585 {
586 register_syscore_ops(&bast_pm_syscore_ops);
587
588 s3c_i2c0_set_platdata(&bast_i2c_info);
589 s3c_nand_set_platdata(&bast_nand_info);
590 s3c24xx_fb_set_platdata(&bast_fb_info);
591 platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
592
593 i2c_register_board_info(0, bast_i2c_devs,
594 ARRAY_SIZE(bast_i2c_devs));
595
596 usb_simtec_init();
597 nor_simtec_init();
598 simtec_audio_add(NULL, true, &bast_audio);
599
600 WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
601
602 s3c_cpufreq_setboard(&bast_cpufreq);
603 }
604
605 MACHINE_START(BAST, "Simtec-BAST")
606 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
607 .atag_offset = 0x100,
608 .map_io = bast_map_io,
609 .init_irq = s3c2410_init_irq,
610 .init_machine = bast_init,
611 .init_time = samsung_timer_init,
612 .restart = s3c2410_restart,
613 MACHINE_END
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