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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/platform_device.h>
23#include <linux/dm9000.h>
24#include <linux/ata_platform.h>
25#include <linux/i2c.h>
26#include <linux/io.h>
27
28#include <net/ax88796.h>
29
30#include <asm/mach/arch.h>
31#include <asm/mach/map.h>
32#include <asm/mach/irq.h>
33
34#include <mach/bast-map.h>
35#include <mach/bast-irq.h>
36#include <mach/bast-cpld.h>
37
38#include <mach/hardware.h>
39#include <asm/irq.h>
40#include <asm/mach-types.h>
41
42//#include <asm/debug-ll.h>
43#include <plat/regs-serial.h>
44#include <mach/regs-gpio.h>
45#include <mach/regs-mem.h>
46#include <mach/regs-lcd.h>
47
48#include <plat/hwmon.h>
49#include <plat/nand.h>
50#include <plat/iic.h>
51#include <mach/fb.h>
52
53#include <linux/mtd/mtd.h>
54#include <linux/mtd/nand.h>
55#include <linux/mtd/nand_ecc.h>
56#include <linux/mtd/partitions.h>
57
58#include <linux/serial_8250.h>
59
60#include <plat/clock.h>
61#include <plat/devs.h>
62#include <plat/cpu.h>
63#include <plat/cpu-freq.h>
64#include <plat/gpio-cfg.h>
65#include <plat/audio-simtec.h>
66
67#include "simtec.h"
68#include "common.h"
69
70#define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
71
72/* macros for virtual address mods for the io space entries */
73#define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
74#define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
75#define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
76#define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
77
78/* macros to modify the physical addresses for io space */
79
80#define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
81#define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
82#define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
83#define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
84
85static struct map_desc bast_iodesc[] __initdata = {
86 /* ISA IO areas */
87 {
88 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
89 .pfn = PA_CS2(BAST_PA_ISAIO),
90 .length = SZ_16M,
91 .type = MT_DEVICE,
92 }, {
93 .virtual = (u32)S3C24XX_VA_ISA_WORD,
94 .pfn = PA_CS3(BAST_PA_ISAIO),
95 .length = SZ_16M,
96 .type = MT_DEVICE,
97 },
98 /* bast CPLD control registers, and external interrupt controls */
99 {
100 .virtual = (u32)BAST_VA_CTRL1,
101 .pfn = __phys_to_pfn(BAST_PA_CTRL1),
102 .length = SZ_1M,
103 .type = MT_DEVICE,
104 }, {
105 .virtual = (u32)BAST_VA_CTRL2,
106 .pfn = __phys_to_pfn(BAST_PA_CTRL2),
107 .length = SZ_1M,
108 .type = MT_DEVICE,
109 }, {
110 .virtual = (u32)BAST_VA_CTRL3,
111 .pfn = __phys_to_pfn(BAST_PA_CTRL3),
112 .length = SZ_1M,
113 .type = MT_DEVICE,
114 }, {
115 .virtual = (u32)BAST_VA_CTRL4,
116 .pfn = __phys_to_pfn(BAST_PA_CTRL4),
117 .length = SZ_1M,
118 .type = MT_DEVICE,
119 },
120 /* PC104 IRQ mux */
121 {
122 .virtual = (u32)BAST_VA_PC104_IRQREQ,
123 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
124 .length = SZ_1M,
125 .type = MT_DEVICE,
126 }, {
127 .virtual = (u32)BAST_VA_PC104_IRQRAW,
128 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
129 .length = SZ_1M,
130 .type = MT_DEVICE,
131 }, {
132 .virtual = (u32)BAST_VA_PC104_IRQMASK,
133 .pfn = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
134 .length = SZ_1M,
135 .type = MT_DEVICE,
136 },
137
138 /* peripheral space... one for each of fast/slow/byte/16bit */
139 /* note, ide is only decoded in word space, even though some registers
140 * are only 8bit */
141
142 /* slow, byte */
143 { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
144 { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
145 { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
146
147 /* slow, word */
148 { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
149 { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
150 { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
151
152 /* fast, byte */
153 { VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
154 { VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
155 { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
156
157 /* fast, word */
158 { VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
159 { VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
160 { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
161};
162
163#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
164#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
165#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
166
167static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
168 [0] = {
169 .hwport = 0,
170 .flags = 0,
171 .ucon = UCON,
172 .ulcon = ULCON,
173 .ufcon = UFCON,
174 },
175 [1] = {
176 .hwport = 1,
177 .flags = 0,
178 .ucon = UCON,
179 .ulcon = ULCON,
180 .ufcon = UFCON,
181 },
182 /* port 2 is not actually used */
183 [2] = {
184 .hwport = 2,
185 .flags = 0,
186 .ucon = UCON,
187 .ulcon = ULCON,
188 .ufcon = UFCON,
189 }
190};
191
192/* NAND Flash on BAST board */
193
194#ifdef CONFIG_PM
195static int bast_pm_suspend(void)
196{
197 /* ensure that an nRESET is not generated on resume. */
198 gpio_direction_output(S3C2410_GPA(21), 1);
199 return 0;
200}
201
202static void bast_pm_resume(void)
203{
204 s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
205}
206
207#else
208#define bast_pm_suspend NULL
209#define bast_pm_resume NULL
210#endif
211
212static struct syscore_ops bast_pm_syscore_ops = {
213 .suspend = bast_pm_suspend,
214 .resume = bast_pm_resume,
215};
216
217static int smartmedia_map[] = { 0 };
218static int chip0_map[] = { 1 };
219static int chip1_map[] = { 2 };
220static int chip2_map[] = { 3 };
221
222static struct mtd_partition __initdata bast_default_nand_part[] = {
223 [0] = {
224 .name = "Boot Agent",
225 .size = SZ_16K,
226 .offset = 0,
227 },
228 [1] = {
229 .name = "/boot",
230 .size = SZ_4M - SZ_16K,
231 .offset = SZ_16K,
232 },
233 [2] = {
234 .name = "user",
235 .offset = SZ_4M,
236 .size = MTDPART_SIZ_FULL,
237 }
238};
239
240/* the bast has 4 selectable slots for nand-flash, the three
241 * on-board chip areas, as well as the external SmartMedia
242 * slot.
243 *
244 * Note, there is no current hot-plug support for the SmartMedia
245 * socket.
246*/
247
248static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
249 [0] = {
250 .name = "SmartMedia",
251 .nr_chips = 1,
252 .nr_map = smartmedia_map,
253 .options = NAND_SCAN_SILENT_NODEV,
254 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
255 .partitions = bast_default_nand_part,
256 },
257 [1] = {
258 .name = "chip0",
259 .nr_chips = 1,
260 .nr_map = chip0_map,
261 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
262 .partitions = bast_default_nand_part,
263 },
264 [2] = {
265 .name = "chip1",
266 .nr_chips = 1,
267 .nr_map = chip1_map,
268 .options = NAND_SCAN_SILENT_NODEV,
269 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
270 .partitions = bast_default_nand_part,
271 },
272 [3] = {
273 .name = "chip2",
274 .nr_chips = 1,
275 .nr_map = chip2_map,
276 .options = NAND_SCAN_SILENT_NODEV,
277 .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
278 .partitions = bast_default_nand_part,
279 }
280};
281
282static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
283{
284 unsigned int tmp;
285
286 slot = set->nr_map[slot] & 3;
287
288 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
289 slot, set, set->nr_map);
290
291 tmp = __raw_readb(BAST_VA_CTRL2);
292 tmp &= BAST_CPLD_CTLR2_IDERST;
293 tmp |= slot;
294 tmp |= BAST_CPLD_CTRL2_WNAND;
295
296 pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
297
298 __raw_writeb(tmp, BAST_VA_CTRL2);
299}
300
301static struct s3c2410_platform_nand __initdata bast_nand_info = {
302 .tacls = 30,
303 .twrph0 = 60,
304 .twrph1 = 60,
305 .nr_sets = ARRAY_SIZE(bast_nand_sets),
306 .sets = bast_nand_sets,
307 .select_chip = bast_nand_select,
308};
309
310/* DM9000 */
311
312static struct resource bast_dm9k_resource[] = {
313 [0] = {
314 .start = S3C2410_CS5 + BAST_PA_DM9000,
315 .end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
316 .flags = IORESOURCE_MEM,
317 },
318 [1] = {
319 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
320 .end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
321 .flags = IORESOURCE_MEM,
322 },
323 [2] = {
324 .start = IRQ_DM9000,
325 .end = IRQ_DM9000,
326 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
327 }
328
329};
330
331/* for the moment we limit ourselves to 16bit IO until some
332 * better IO routines can be written and tested
333*/
334
335static struct dm9000_plat_data bast_dm9k_platdata = {
336 .flags = DM9000_PLATF_16BITONLY,
337};
338
339static struct platform_device bast_device_dm9k = {
340 .name = "dm9000",
341 .id = 0,
342 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
343 .resource = bast_dm9k_resource,
344 .dev = {
345 .platform_data = &bast_dm9k_platdata,
346 }
347};
348
349/* serial devices */
350
351#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
352#define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
353#define SERIAL_CLK (1843200)
354
355static struct plat_serial8250_port bast_sio_data[] = {
356 [0] = {
357 .mapbase = SERIAL_BASE + 0x2f8,
358 .irq = IRQ_PCSERIAL1,
359 .flags = SERIAL_FLAGS,
360 .iotype = UPIO_MEM,
361 .regshift = 0,
362 .uartclk = SERIAL_CLK,
363 },
364 [1] = {
365 .mapbase = SERIAL_BASE + 0x3f8,
366 .irq = IRQ_PCSERIAL2,
367 .flags = SERIAL_FLAGS,
368 .iotype = UPIO_MEM,
369 .regshift = 0,
370 .uartclk = SERIAL_CLK,
371 },
372 { }
373};
374
375static struct platform_device bast_sio = {
376 .name = "serial8250",
377 .id = PLAT8250_DEV_PLATFORM,
378 .dev = {
379 .platform_data = &bast_sio_data,
380 },
381};
382
383/* we have devices on the bus which cannot work much over the
384 * standard 100KHz i2c bus frequency
385*/
386
387static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
388 .flags = 0,
389 .slave_addr = 0x10,
390 .frequency = 100*1000,
391};
392
393/* Asix AX88796 10/100 ethernet controller */
394
395static struct ax_plat_data bast_asix_platdata = {
396 .flags = AXFLG_MAC_FROMDEV,
397 .wordlength = 2,
398 .dcr_val = 0x48,
399 .rcr_val = 0x40,
400};
401
402static struct resource bast_asix_resource[] = {
403 [0] = {
404 .start = S3C2410_CS5 + BAST_PA_ASIXNET,
405 .end = S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20) - 1,
406 .flags = IORESOURCE_MEM,
407 },
408 [1] = {
409 .start = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20),
410 .end = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20),
411 .flags = IORESOURCE_MEM,
412 },
413 [2] = {
414 .start = IRQ_ASIX,
415 .end = IRQ_ASIX,
416 .flags = IORESOURCE_IRQ
417 }
418};
419
420static struct platform_device bast_device_asix = {
421 .name = "ax88796",
422 .id = 0,
423 .num_resources = ARRAY_SIZE(bast_asix_resource),
424 .resource = bast_asix_resource,
425 .dev = {
426 .platform_data = &bast_asix_platdata
427 }
428};
429
430/* Asix AX88796 10/100 ethernet controller parallel port */
431
432static struct resource bast_asixpp_resource[] = {
433 [0] = {
434 .start = S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20),
435 .end = S3C2410_CS5 + BAST_PA_ASIXNET + (0x1b * 0x20) - 1,
436 .flags = IORESOURCE_MEM,
437 }
438};
439
440static struct platform_device bast_device_axpp = {
441 .name = "ax88796-pp",
442 .id = 0,
443 .num_resources = ARRAY_SIZE(bast_asixpp_resource),
444 .resource = bast_asixpp_resource,
445};
446
447/* LCD/VGA controller */
448
449static struct s3c2410fb_display __initdata bast_lcd_info[] = {
450 {
451 .type = S3C2410_LCDCON1_TFT,
452 .width = 640,
453 .height = 480,
454
455 .pixclock = 33333,
456 .xres = 640,
457 .yres = 480,
458 .bpp = 4,
459 .left_margin = 40,
460 .right_margin = 20,
461 .hsync_len = 88,
462 .upper_margin = 30,
463 .lower_margin = 32,
464 .vsync_len = 3,
465
466 .lcdcon5 = 0x00014b02,
467 },
468 {
469 .type = S3C2410_LCDCON1_TFT,
470 .width = 640,
471 .height = 480,
472
473 .pixclock = 33333,
474 .xres = 640,
475 .yres = 480,
476 .bpp = 8,
477 .left_margin = 40,
478 .right_margin = 20,
479 .hsync_len = 88,
480 .upper_margin = 30,
481 .lower_margin = 32,
482 .vsync_len = 3,
483
484 .lcdcon5 = 0x00014b02,
485 },
486 {
487 .type = S3C2410_LCDCON1_TFT,
488 .width = 640,
489 .height = 480,
490
491 .pixclock = 33333,
492 .xres = 640,
493 .yres = 480,
494 .bpp = 16,
495 .left_margin = 40,
496 .right_margin = 20,
497 .hsync_len = 88,
498 .upper_margin = 30,
499 .lower_margin = 32,
500 .vsync_len = 3,
501
502 .lcdcon5 = 0x00014b02,
503 },
504};
505
506/* LCD/VGA controller */
507
508static struct s3c2410fb_mach_info __initdata bast_fb_info = {
509
510 .displays = bast_lcd_info,
511 .num_displays = ARRAY_SIZE(bast_lcd_info),
512 .default_display = 1,
513};
514
515/* I2C devices fitted. */
516
517static struct i2c_board_info bast_i2c_devs[] __initdata = {
518 {
519 I2C_BOARD_INFO("tlv320aic23", 0x1a),
520 }, {
521 I2C_BOARD_INFO("simtec-pmu", 0x6b),
522 }, {
523 I2C_BOARD_INFO("ch7013", 0x75),
524 },
525};
526
527static struct s3c_hwmon_pdata bast_hwmon_info = {
528 /* LCD contrast (0-6.6V) */
529 .in[0] = &(struct s3c_hwmon_chcfg) {
530 .name = "lcd-contrast",
531 .mult = 3300,
532 .div = 512,
533 },
534 /* LED current feedback */
535 .in[1] = &(struct s3c_hwmon_chcfg) {
536 .name = "led-feedback",
537 .mult = 3300,
538 .div = 1024,
539 },
540 /* LCD feedback (0-6.6V) */
541 .in[2] = &(struct s3c_hwmon_chcfg) {
542 .name = "lcd-feedback",
543 .mult = 3300,
544 .div = 512,
545 },
546 /* Vcore (1.8-2.0V), Vref 3.3V */
547 .in[3] = &(struct s3c_hwmon_chcfg) {
548 .name = "vcore",
549 .mult = 3300,
550 .div = 1024,
551 },
552};
553
554/* Standard BAST devices */
555// cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
556
557static struct platform_device *bast_devices[] __initdata = {
558 &s3c_device_ohci,
559 &s3c_device_lcd,
560 &s3c_device_wdt,
561 &s3c_device_i2c0,
562 &s3c_device_rtc,
563 &s3c_device_nand,
564 &s3c_device_adc,
565 &s3c_device_hwmon,
566 &bast_device_dm9k,
567 &bast_device_asix,
568 &bast_device_axpp,
569 &bast_sio,
570};
571
572static struct clk *bast_clocks[] __initdata = {
573 &s3c24xx_dclk0,
574 &s3c24xx_dclk1,
575 &s3c24xx_clkout0,
576 &s3c24xx_clkout1,
577 &s3c24xx_uclk,
578};
579
580static struct s3c_cpufreq_board __initdata bast_cpufreq = {
581 .refresh = 7800, /* 7.8usec */
582 .auto_io = 1,
583 .need_io = 1,
584};
585
586static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
587 .have_mic = 1,
588 .have_lout = 1,
589};
590
591static void __init bast_map_io(void)
592{
593 /* initialise the clocks */
594
595 s3c24xx_dclk0.parent = &clk_upll;
596 s3c24xx_dclk0.rate = 12*1000*1000;
597
598 s3c24xx_dclk1.parent = &clk_upll;
599 s3c24xx_dclk1.rate = 24*1000*1000;
600
601 s3c24xx_clkout0.parent = &s3c24xx_dclk0;
602 s3c24xx_clkout1.parent = &s3c24xx_dclk1;
603
604 s3c24xx_uclk.parent = &s3c24xx_clkout1;
605
606 s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks));
607
608 s3c_hwmon_set_platdata(&bast_hwmon_info);
609
610 s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
611 s3c24xx_init_clocks(0);
612 s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
613}
614
615static void __init bast_init(void)
616{
617 register_syscore_ops(&bast_pm_syscore_ops);
618
619 s3c_i2c0_set_platdata(&bast_i2c_info);
620 s3c_nand_set_platdata(&bast_nand_info);
621 s3c24xx_fb_set_platdata(&bast_fb_info);
622 platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
623
624 i2c_register_board_info(0, bast_i2c_devs,
625 ARRAY_SIZE(bast_i2c_devs));
626
627 usb_simtec_init();
628 nor_simtec_init();
629 simtec_audio_add(NULL, true, &bast_audio);
630
631 WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
632
633 s3c_cpufreq_setboard(&bast_cpufreq);
634}
635
636MACHINE_START(BAST, "Simtec-BAST")
637 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
638 .atag_offset = 0x100,
639 .map_io = bast_map_io,
640 .init_irq = s3c24xx_init_irq,
641 .init_machine = bast_init,
642 .timer = &s3c24xx_timer,
643 .restart = s3c2410_restart,
644MACHINE_END
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 02:16:32 -0500